Jamo D 830 loudspeakers

Jamo Concert bookshelf loudspeakers

In the development of this loudspeaker series Jamo have given priority to  obtaining

A neutral and natural sound balance, so that he sound is reproduced with the exact same tonal characteristics as the original material. A natural benefit of this is that these loudspeakers are able to reproduce all forms of music, speech etc., without adding any sort of "colour" to the sound.

Having started out with such an ambitious goal, an obvious requirement is to avoid any sort of compromise in the entire selection of materials - from terminals to cables, drivers and cabinets.

In the actual developing phase we have therefore carried out listening tests of countless components before making the final selection. Jamo have also tested innumerable combinations of amplifiers, CD players and cables with all types of music and speech in order to ensure construction of an entirely unique loudspeaker series to give you optimum performance in all circumstances.

Tweeter

The tweeter used was chosen because of its musical and ultraa-precise reproduction capabilities. This has been achieved partly by using a special Sonotex diaphragm, the result of a process where the textile diaphragm is coated four times to achieve the optimum combination of rigidity and internal damping.

Woofer/Midrange unit

In the D8 series Jamo wanted the important midrange area to be handled by a single unit, partly to achieve optimum phase characteristics. However, this makes high demands on the unit used, as it must be able to reproduce a wide frequency spectrum and thus be able to endure high loads.

 

Specifications

System:  2-way, bass-reflex

Drivers

LF :  1 x 165 mm woofer

HF :  1 x 25 mm dome tweeter

Sensitivity:  90 dB

Frequency Range:  38 - 22,000 Hz

Impedance:  4 Ω

Power Handling:  120 watts

Inputs:  Gold plated bi-wiring screw terminals

Finish:  Cherry

Dimensions (W x H x D):  245 x 380 x 310 mm (9,65 " x 14,96" x 12,2")

Weight:12 kg (26,46 lbs)

Sony PS-LX4 turntable

The Sony Semi-automatic turntable

PS-LX4 are automatic return turntables with a full array of features and flawlessly smooth performance at modest cost.

 

Outstanding Features

Straight Duralumin tonearm for low mass and excellent tracking

Two-point tonearm support for high rigidity and low modulation noise

Tonearm and Functions

Semi-automatic system returns tonearm at end of play and shuts off motor

Front controls provide convenient operation - even with the dust cover closed

Record-setting guides make it easy to place the record precisely on the spindle

Turntable and Construction

Quartz lock prevents even minute speed variations caused by external factors

The Sony Linear Torque BSL motor designed for uniform and smooth delivery of torque

Magnedisc servo control monitors speed at the outer rim of platter for exceptional accuracy

Electromagnetic braking provides rapid and smooth half of platter rotation

Sony Bulk Molding Compound base is both rigid and acoustically inert to reduce feedback

 

The PS-LX4 direct-drive turntable deliver exceptional performance. Both models incorporate Sony's straight, low-mass tonearm, also found on several other Sony models. It is obvious, that a turntable's tonearm is critical to performance

A tonearm must be rigid. Yet some cartridges only function properly with a low-mass tonearm. These seemingly contradictory requirements - high rigidity and low mass - have been met by the design and materials of the straight, low-mass tonearm. The shaft of this tonearm is supported in two places; behind and in front of the vertical bearings. This two-point suspension reduces resonance and makes the shaft 35% more rigid.

Sony engineers have chosen an alloy called Duralumin which, when fabricated into a thin-walled, hollow tube.=, nevertheless retains exceptional strength. Finally, because of its high rigidity and low mass, the tonearm accepts a wide variety of cartridges, including the high compliance, high performance types.

 

 

Specifications

Turntable

Operation Type:  Semi-automatic

Platter:  310 mm (12-1/4") aluminum-alloy diecast

Platter Weight:  1,1 kg (2lb 7 oz)

Motor:  Linear torque BSL (Brushless and slotless) motor

Drive System:  Direct-drive

Control System:  Magnedisc servo, and Quartz lock control system

Speeds:  33-⅓ and 45 rpm

Starting Characteristics:  Comes to nominal speed within a half revolution (33-⅓ rpm)

Speed Accuracy:  >0,003%

Wow and Flutter:  0,025% (WRMS) ±0,04% (DIN-45507)

FG Direct Measurement:  0,02%

Signal-to-Noise Ratio:  78 dB (DIN-B)

Load Characteristics:  0,05% up to 150 g stylus force (at lead-in groove of a record)

Tonearm

Type:  Straight Statically balanced

Pivot-to-stylus length:  216,5 mm (8-5/8")

Overhang:  16,5 mm

Tracking Error:  +3°00'; -1°00'

Effective Mass (without cartridge):  8,98 g

Stylus Force Adjustment Range:  0 - 3 g

General Section

Power Requirements:  120 V AC 60 Hz

Power Consumption:  8 W

Dimensions (W x H x D):  430 x 105 x 355 mm (17" x 4-1/4" x 14")

Weight:  approx 6,3 kg (13 lbs 14 oz)

Sony PS-LX2 turntable

The Sony PS-LX2 - automatic return turntables with a full array of features and flawlessly smooth performance at modest cost.

 

Outstanding Features

Straight Duralumin tonearm for low mass and excellent tracking

Two-point tonearm support for high rigidity and low modulation noise

Tonearm and Functions

Semi-automatic system returns tonearm at end of play and shuts off motor

Front controls provide convenient operation - even with the dust cover closed

Record-setting guides make it easy to place the record precisely on the spindle

Turntable and Construction

Servo-lock indicator

The  only Linear Torque BSL motor designed for uniform and smooth delivery of torque

Magnedisc servo control monitors speed at the outer rim of platter for exceptional accuracy

Sony Bulk Molding Compound base is both rigid and acoustically inert to reduce feedback

 

Specifications

Turntable

Platter:  310 mm (12-1/4") aluminum-alloy diecast

Motor:  Linear torque BSL (Brushless and slotless) motor

Drive System:  Direct-drive

Control System:  Magnedisc servo control system

Speeds:  33-⅓ and 45 rpm

Starting Characteristics:  Comes to nominal speed within a half revolution (33-⅓ rpm)

Wow and Flutter:  0,0%2-0,025% (WRMS)

Signal-to-Noise Ratio:  75 dB (DIN-B)

Load Characteristics:  0,05% up to 150 g stylus force (at lead-in groove of a record)

Tonearm

Type:  Statically balanced

Pivot-to-stylus length:  216,5 mm (8-5/8")

Overhang:  16,5 mm

Stylus Force Adjustment Range:  0 - 3 g

Cartridge Shell Weight:  4,7 g (USA model); 5,2 g (Canadian model)

Cartridge Weight Range (including supplied shelf):  7,5 - 12 g

Cartridge VL-5 (supplied only with the PS-LX2C)

Type:  Moving magnet

Frequency Response:  10 Hz - 20 kHz

Channel Separation:: 20 dB at 1 kHz

Output Voltage:  3,5 mV at 1 kHz

Load Impedance:  47 - 100 k Ω

Tracking Force:  1,5 - 2,5 g

Stylus:  Sony ND-5G Conical 0,6 mil diamond

Weight:  5,0 g

General Section

Power Requirements:  120 V AC 60 Hz

Power Consumption:  8 W

Dimensions (W x H x D):  430 x 105 x 355 mm (17" x 4-1.4" x 14")

Weight:  approx 5,8 kg (12 lbs 13 oz)

JVC R-S7 receiver

FM/AM Stereo Receiver from JVC

Features

Extra-Long tunning dial (240 mm ) for easier tuning and frequency linear in FM for faster station selection.

Double FM Muting

Tape Monitor Indicator

Internal AM Bar Aerial - AM sound is free fo noise, fuzz and whine.

50 Watts per channel, min. RMS (both channels driven into 8 ohms, 20-20,000 Hz, 0,03% T.H.D.)

Low-Noise Phono Equalizer with amazing 90 dB Signal-to-Noise Ratio

PLL Multiplex Demodulator in IC for Wide FM separation

Exceptionally High FM Signal-to-Noise Ratio bye newly developed IC

JVC's triple Power Protection

 

Two "P's" to remember - Power and Performance - for purer sound

Power and performance make this JVC model outstanding for its price. The JVC R-S7 delivers more power output for your money than any other in its class. Indeed, it drives even the most inefficient speakers with ease at low distortion of 0,03% or less. Control capabilities, looks, durably and circuitry add still more value.

 

Phono equalization is accurate with an impressive 90 dB Signal-to-Noise Ratio

Microelectronics have their place, but there's no ICs in this phono equalizer formed of discrete parts. No IC, for instance, can ensure the highs/n of 90 dB - higher than you'll find in many more expensive receivers.

Extra rugged Power Transistors for more.

The power amp of the R-S7 is a sophiosticated, fully complementary OCL type, with as many as twelve transistors in each channel. The power transistors themselves are extra rugged to provide true performance over a wide range of output. This means more musical margin.

 

Full safety is assured with JVC's triple Power Protection

This safeguards your system by providing three important functions;

1.Power On/Off shock noise never reaches speakers;

2.Speakers are electronically disconnected in the event an abnormal DC voltage appears at the terminals; speaker damage is entirely avoided; and

3.Power transistors are protected in the event of shorts, low speaker impedance or other power-related mishaps.

 

Tuner performance in FM and AM is as clean as we can make it.

The IF amps and a quadrature detector in the R-S7 are in IC from. Distortion is only 0,15% or less (mono), the Signal-to-Noise Ratio is an outstanding 82 dB, and the frequency response is 30 to 15,000 Hz. Then, for pinpoint tuning, a new 4-element ceramic filter raises selectivity to a high 65 dB. Another IC is found in the PLL (Phase-Locked Loop) FM stereo demodulator to keep distortion to a low 0,3% or less over long years of use. The AM sound is pleasant and listenable thanks to still another IC for AM RF/IF.

 

Specifications

Amplifier Section

Output Power: 

50 Watts per channel, min. RMS (both channels driven into 8 Ω  from 20-20,000 Hz, with no more more than  0,03% T.H.D.)

70 Watts per channel,  into 4 Ω  (1kHz,   0,03% T.H.D.)

55 Watts per channel,  into 8 Ω  (1kHz,   0,03% T.H.D.)

Total Harmonic Distortion (at Half Rated Power, 1 kHz, 8 Ω ):  0,008%

Intermodulation Distortion:  0,03% at Rated Output

Damping Factor:  45 at 8 Ω  from 20 - 20,000 Hz

Load Impedance:  4 - 16 Ω

Input Sensitivit/Impedance

Phono :  2,5 mV/47 k Ω

Aux, Tape :  170 mV/ 40 k Ω

Signal-to-Noise Ratio (IHF A network, Short-circuited)

Phono :  82 dB (90 dB at 10 mV input)

Aux, Tape :  100 dB

Recording Output:  170 mV

Frequency Response:  15 Hz - 50 kHz ±1,0 dB

RIAA Phono Equalization:  ±0,5 dB (20-20,000 Hz)

Phono Overload:  140 mV at 1 kHz (0,05% T.H.D.)

Tone Controls

Bass :  ±8 dB at 100 Hz

Treble :  ±8 dB at 10 kHz

Loudness Control (Volume at -40 position):  +10 dB (at 50 Hz): +4 dB (at 10 kHz)

FM  Tuner Section

Usable Sensitivity:  10,3 dBf (0,9 µV/75 Ω )

50 dB Quieting Sensitivty

Mono :  14,8 dBf (1,5 µV/75 Ω )

Stereo :  38,3 dBf (22,4 µV/75 Ω )

Stereo Separation:  45 dB at 1 kHz; 35 dB from 50 Hz to 10 kHz

Distortion:

100 Hz :  0,15% (mono); 0,3% (stereo)

1 kHz :  0,15% (mono); 0,3% (stereo)

6 kHz :  0,4% (mono); 0,8% (stereo)

Signal-to-Noise Ratio (IHF Weighted)

Mono :  82 dB

Stereo :  70 dB

Alternate Channel Selectivity:  65 dB (±400 kHz)

Capture Ratio:  1,0 dB

Image Response Ratio:  60 dB at 98 MHz

IF Response Ratio:  90 dB at 98 MHz

AM Suppression Ratio:  55 dB

Frequency Response:  30 Hz - 15 kHz (+0,5 dB -1,0 dB)

AM Tuner Section

Sensitivity:  30 µV, 300 µV/m

Selectivity:  35 dB (±10 kHz)

Signal-to-Noise Ratio :  50 dB

Dimensions (W x H x D):  450 x 149 351 mm (17" x 5-7/8" x 13-13/16")

Weight:  8,5 kg (18,7 lbs)

Epicure Five loudspeakers

A step closer to reality

Epicure is the division of Epicure Products. Inc. With the responsibility for spawning state-of-the-art. Audio products. That puts us in a luxurious position. We're concerned only with sonic perfection . Not price.

Our obvious goal, then is reality. The reproduction of sound exactly as it was played and sung.

To accomplish that we've designed entirely new assembly tools, jigs, and fixtures. Certain critical procedures that could never be done perfectly by hand, are now being done perfectly. The result of our efforts is a new generation of speakers of remarkable accuracy. The Epicure Five is our smallest speaker. But because it utilizes the same basic components as our larger models, it has a power response that's superior to that of any other speaker in its size or price range.

 

The Epicure Five

In 1967, Epicure introduced the industry's first loudspeaker with true linearity, or accuracy. Ever since, audio critics, engineers, and independent consumer testing laboratories have consistently given our speakers the highest ratings in the industry.

The Epicure Five offers extreme linearity, excellent dispersion, and nearly perfect system phasing. Its frequency response is essentially flat and undistorted from 50 to 20,000 Hz.

With the Five, you've got a speaker small enough to fit practically anywhere in a room, but powerful enough to fill it with the full dynamic range of the music. The Five offers a level of sonic transparency and natural clarity that's totally unexpected from a speaker its size and price.

That's why the company that manufactures the ultimate in loudspeakers, the Tower, offers the model Five with equal pride.

The Epicure Five Tweeter

Here is a 1-inch air-spring tweeter unlike any other in the industry.

It has balanced, low-mass voice coil assembly. Not centered semi-perfectly with silicone, but centered perfectly and automatically with a remarkable space-age fluid that no one esle in the business uses. This unique tweeter produces lower distortion in the mid-range, particularly noticeable in the voices. And nearly hemispherical dispersion across most of the audible range.

The Epicure Five Woofer

The Epicure Five has a specially fabricated controlled-excursion 6-inch low mass woofer. Its low-vacuum deposit cone is light and stiff. The woofer offers remarkable openness and dispersion. A smoother more accurate bass without the usual resonance and heaviness of the low notes. With this woofer, it's possible to really hear indivdual bass instruments, not just "bass"

The Epicure Five Uncompromising 10-Year Warranty

If the Epicure Five were anything less than we say it is, we'd be reluctant to stand behind it. If you return your Epicure Five to our factory, or any authorized warranty station, we'll provide free parts and labor to correct any original manufacturing defect.

 

Specifications

Frequency Response:  50 to 20,000 Hz ±3 dB

Dispersion:  Nearly Hemispherical , 180 degrees, from all radiating planes

Crossover Frequency:  1800 Hz, 12 dB/octave roll-off

Drivers"

HF :  1-inch air spring transducer

LF :  6-inch controlled-excursion low frequency transducer

Impedance:  8 ohms

Tweeter Level Control:  Variable rheostat

Inputs:  Push-button terminals

Finish:  Walnut-like cold laminare

Grille:  Acoustically transparent cloth on removable front panel assembly. High frequencies aren't filtered out. Dark brown is the standard color.

Dimensions:  11 x 15 x 7-7/8 inches

Weight:  36 lbs

 

Akai AA-1020 receiver

The Akai AA-1020 

Promises a minimum power output of 20 watts per channel RMS at 8 ohms from 20 Hz to 20 khzs with no more than 0,4% total harmonic distortion. IHF tuner sensitivity is 2,0 µV.

The Multiplex Section features a Phase-Lock-Lop circuit which locks the 19 kHz FM sugnal phase to the phase of the 38 kHz switching signal for complete stability. Separation is better than 40 dB. An FM Muting switch cuts out noise during FM reception.

There's a power transistor protection unit which is activated if there's a short caused by a wrong speaker connection or when input goes over the top. The tone control circuit is a 2-stage direct coupled negative feedback type. It gives you precise tone adjustment of both channels Special "click: type Bass and Treble controls can be adjusted to plus or minus 10 dB. Each calibrated "click" represents 2 decibels. A two stage direct coupled negative feedback phono equalizer circuit provides a really wide dynamic range from disc.

The loudness switch boosts bass and treble response for balanced sound at low volume. High and low filters reduce extreme high and low frequency output for clearer playback quality.

There's a comprehensive tape dubbing facility as well. You can connect two tape decks for simultaneous recording from a single source. Tape monitor 1 has parallel DIN and phone connections. You can also connect up two pairs of speakers. A Speaker Selector gives you the choice of using the speakers individually or both together.

The AA-1020 has both FM and AM antenna terminals and a distance/local switch plus an AM Bar antenna for perfect station pick-up.

Versatility goes still further with two sets of phono jacks for connecting two magnetic cartridge turntables. Aux jacks will take ceramic and crystal cartridge turntables. And the Aux jacks can also be used for dubbing from an additional tape recorder to Tape 1 or Tape 2.

 

Specifications

Amplifier Section

Continuous Power Output (both channels driven):  20 W per channel RMS at 8 Ω  from 20 - 20,000 Hz

Total Harmonic Distortion:  less than 0,4%

Power bandwidth (IHF):  10 to 60,000 Hz

Input Sensitivity/Impedance: 

Phono 1, 2 :  3 mV/50 k Ω 

Aux :  150 mV/80 k Ω

Tape 1, 2 :  150 mV/80 k Ω 

Signal-to-Noise Ratio (IHF)

Phono :  better than 80 dB

Tone Controls

Bass :  ±10 dB at 100 Hz

Treble :  ±10 dB at 10 kHz

Phono Equaliser:  RIAA ±1 dB

Loudness Control (volume at -30 dB):  100 Hz (+10 dB) / 10 kHz (+6 dB)

Filters

High :  -9 dB at 10 kHz

Low :  -6 dB at 50 Hz

FM Tuner Section

Frequency Range:  88 MHz to 108 MHz

Sensitivity (IHF):  2,0 µV

Capture Ratio (IHF):  2,0 dB

Selectivity (IHF):  better than 70 dB

Signal-to-Noise Ratio :  better than 68 dB

Image Rejection:  better than 65 dB

IF Rejection:  better than 90 dB

T.H.D. Stereo :  less than 0,5%

AM Tuner Section

Frequency Range:  535 kHz to 1608 kHz

Sensitivity (IHF):  200 µV (bar antenna); 5 µV (ext. Antenna)

Selectivity (IHF):  better than 30 dB at 1,000 kHz

AM Distortion:  less than 0,8%

Signal-to-Noise Ratio :  better than 50 dB

Dimensions (W x H x D):  440 x 140 x 350 mm (17,3" x 5,5" x 13,8")

Weight:  12 kg (26,4 lbs)

Akai AA-1010 receiver

In your hi-fi home system, the amplifier's job is to give your power and control of sound. The tuner is there to provide you with the best possible means of receiving radio signals. And a receiver is quite simply an amplifier and tuner combined into one.

The Akai AA-1010 packs a powerful punch of 14 watts per channel RMS at 8 ohms, both channels driven. Bandwidth runs from 40 to 20,000 kHz with no more than 0,8% total harmonic distortion. At the 1 kHz point, the power is at least 16 watts per channel into 8 ohms, both channels driven. So the specified power rating is a minimum figure.

The tuner sensitivity is, for this class of machine, a remarkable 2,0 µV. there's a Phase-Lock-Loop circuit in the FM Multiplex section to produce complete stability with separation better than 40 dB. The styling is smart professional-looking. There's the large precision balanced heavy-weight flywheel for fast and accurate tuning.

There's an FM/AM tuning meter. An FM stereo lamp. There's an input selector switch for AM/FM/Phono/Aux. A stereo/mono mode selector switch. A Tape Monitor On/Off switch. The Loudness control switch boosts the high and low frequency signals for perfect subjective sound balance at low volume. The power On/Off switch also controls speaker selection: A/OFF/B/A+B. Separate bass and treble tone control knobs. The volume control knob. A stereo headphone output jack. And round the back is a highly sensitive AM ferrite bar antenna.

 

Specifications

Amplifier Section

Continuous Power Output (both channels driven):  14 W per channel RMS at 8 Ω  from 20 - 20,000 Hz

Total Harmonic Distortion:  less than 0,8%

Power bandwidth (IHF):  15 to 40,000 Hz

Input Sensitivity/Impedance: 

Phono :  3 mV/47 k Ω 

Aux :  150 mV/100 k Ω

Tape :  150 mV/100 k Ω 

Signal-to-Noise Ratio (IHF)

Phono :  better than 80 dB

Tone Controls

Bass :  ±10 dB at 100 Hz

Treble :  ±10 dB at 10 kHz

Phono Equaliser:  RIAA ±1 dB

Loudness Control (volume at -30 dB):  100 Hz (+10 dB) / 10 kHz (+6 dB)

FM Tuner Section

Frequency Range:  88 MHz to 108 MHz

Sensitivity (IHF):  1,5 µV

Capture Ratio (IHF):  2,0 dB

Selectivity (IHF):  better than 60 dB

Signal-to-Noise Ratio :  better than 65 dB

Image Rejection:  better than 55 dB

IF Rejection:  better than 70 dB

T.H.D. Stereo :  less than 0,6%

AM Tuner Section

Frequency Range:  552 kHz to 1605 kHz

Sensitivity (IHF):  200 µV (bar antenna); 8 µV (ext. Antenna)

Selectivity (IHF):  better than 30 dB at 1,000 kHz

AM Distortion:  less than 1,0%

Signal-to-Noise Ratio :  better than 45 dB

Dimensions (W x H x D):  440 x 125 x 265 mm (17,3" x 4,9" x 10,4")

Weight:  6,4 kg (14,0 lbs)

Royd Coniston R loudspeakers

The Coniston R small 2-way units

This model uses our unique development of bass reflex loading. The bass advantage of bass reflex designs over any other arrangement, is that given the same cabinet size, bass unit diameter and sensitivity, then lower frequencies can be accurately reproduced. This means that the bass performance achieved by a small reflex cabinet would require a much larger closed cabinet. Small cabinets have the advantage of scale over larger cabinets and can much more easily and economically be made structurally sound

In a simple bass reflex arrangement it is almost impossible to prevent a wide range of frequencies from being emitted from the port whereas only low bass frequency emission is required, typically below 90 Hz. A unique solution to this problem has bass unit magnet to the cabinet back and this tube provides a secondary vented chamber for the bass reflex loading. The emission of frequencies above 90 Hz is dramatically cut whilst frequencies below 90 Hz remain unaffected. Further refinements have been incorporated in the design of the Coniston R to reduce windage noise and cavity resonances.

 

Specifications

Recommended Amp Power:  10 to 40 watts

Peak Power Handling:  50 watts

Nominal Impedance:  8 Ω

Drive Units:

LF :  5" Royd bass/mid range with foam roll surround

HF :  19 mm dome/cone tweeter

Crossover Frequency:  4,000 Hz

Sensitivity:  89 dB at 1W/1m

Bass Resonance:  57 Hz

Frequency Range:  50 Hz - 22,000 Hz

Dimensions (W x H x D):  203 x 305 x 190 mm

Weight: 9 kg (packed)

Cabinet Finish :  walnut veneer or black ash

Royd A7 loudspeakers

The seven litre family from Royd Loudspeakers makes full use of the inherent theoretical advantages to be gained from small loudspeakers compared with larger units. These advantages are revealed by the fast and accurate bass performance coupled with very detailed and stable imaging.

In your choice of components for a hi-fi system please be guided by the basic rule that no component in the chain can improve the quality of the incoming signal. A loudspeaker can, at best , faithfully reproduce the signal provided by the amplifier. This does not mean that the choice of loudspeaker is unimportant but it does mean that if you choose a good amplifier you need good loudspeakers. 

 

 The Royd A7 loudspeaker

Exceptional bass performance, sensitivity and detailed reproduction are achieved in this small cabinet by using a unique development of reflex bass loading. A 70 mm diameter aluminium tube is bonded to the backplate of the bass unit and to the cabinet back. The arrangement of this tube cancels out, or damps, resonances in the cabinet and bass unit, acts as a heat sink to increase the power handling capacity, and provides the bass refles loading secondary chamber.

The bass/mid range unit and tweeter have been specifically developed to optimise the performance of this cabinet system.

The A7 design has been carefully adjusted to make the best use of the improvement in performance which can be obtained, by siting small loudspeakers on a bookshelf bet ween books, or on speaker stands, one inch to six inches away from a rear wall.

 

Specifications

Recommended Amp Power:  20 to 40 watts

Peak Power Handling:  60 watts

Nominal Impedance:  8 Ω

Drive Units:

LF :  5" Royd bass/mid range with foam roll surround

HF :  19 mm dome/cone tweeter by  Audax

Crossover Frequency:  4,000 Hz

Sensitivity:  89 dB at 1W/1m

Bass Resonance:  60 Hz

Frequency Range:  50 Hz - 20,000 Hz

Dimensions (W x H x D):  203 x 305 x 190 mm

Cabinet Finish :  Black ash

Harman/Kardon HK460i receiver

 

Like all Harman/Kardon receivers, the hk460i will develop much more power under peak loads than its rated 30 watts per channel

And when it comes to features, the hk460i gives you a lot more than just the basics. Like tape monitor circuitry, subsonic filter and an auto FM switch that automatically shifts the receiver into mono mode when the signal is too weak for stereo reception.

You also get a 5-level signal strength meter for accurate tuning and a station look beacon that lets you know when you're precisely tuned to the channel center.

The hk460i features a tone defeat switch that lets you bypass the tone control circuitry altogether. That means less distortion for crystal-clear, accurate reproduction when listening is critical.

The hk460i, it gigves you a full 30 watts per channel, and performs like a whole lot more.

Specifications

Amplifier Section

RMS Power Output (into 8 Ω  , 20-20,000 Hz):  30 watts (at less than 0,07% T.H.D.

Frequency Response (at rated output):  below 1 Hz - 150 kHz (-3 dB)

Intermodulation Distortion (at rated output):  ,07%

TIM Distortion (at rated output):  ,02%

Slew Rate/Power Amplifier:  60 volts/µsec

Overall Negative Feedback:  30 dB

Hum and Noise (A-weighted):

Phono :  -86 dB

Aux :  -100 dB

Residual :  -100 dB

Phono Overall:  >130 mV

Tuner Section

FM Sensitivity MONO:  2,3 µV

50 dB Quieting Sensitivity

Mono :  3,3 µV

Stereo :  42 µV

FM Noise:  -70 dB

Capture Ratio:  1,5 dB

Alternate Channel Selectivity:  -67 dB

Stereo Separation (1 kHz):  45 dB

FM Frequency Response at Detector Output:  DC -90 kHz (-3 dB)

AM Sensitivity:  300 µV/m

Dimensions (W x H x D):  440 x 122 x 368 mm

Weight:  8,63 kg

Harman/Kardon HK350i receiver

Although conservatively rated at 20 watts per channel into 8 ohms, the new Hk350i has the ability to develop great amounts of instantaneous power to handle peak loads. The result is an economical receiver that will outperform conventional receivers of the same power rating.

To ensure optimum separation and minimum distortion under all operating conditionas, the HK350i uses phase-locked loop circuitry in the tuner section. This system senses any phase error in the broadcast system and automatically makes the necessary corrections, providing better stereo separation and Total Harmonic Distortion levels than in conventionals tuners. The Hk350i also features our new stereo blend control that allows your speakers to sound their best even when they cannot be positioned perfectly.

The HK350i lso offers more convenience features than you'd expect from an economy receiver. Like LED signal strength meter, tpe monitor function, FM muting loudness contour, and accommodations for two pairs of speakers.

The Hk350i, although it's our lowest priced receiver, it gives you the ame advanced technology found only on the most expensive esoteric equipment.

 

Specifications

Amplifier Section

RMS Power Output (into 8 Ω  , 20-20,000 Hz):  20 watts (at less than 0,09% T.H.D.

Frequency Response (at rated output):  below 3 Hz - 120 kHz (-3 dB)

Intermodulation Distortion (at rated output):  ,09%

TIM Distortion (at rated output):  ,06%

Slew Rate/Power Amplifier:  40 volts/µsec

Overall Negative Feedback:  30 dB

Hum and Noise (A-weighted):

Phono :  -85 dB

Aux :  -95 dB

Residual :  -95 dB

Phono Overall:  >100 mV

Tuner Section

FM Sensitivity MONO:  2,5 µV

50 dB Quieting Sensitivity

Mono :  3,5 µV

Stereo :  45 µV

FM Noise:  -65 dB

Capture Ratio:  2,0 dB

Alternate Channel Selectivity:  -60 dB

Stereo Separation (1 kHz):  40 dB

FM Frequency Response at Detector Output:  DC -60 kHz (-3 dB)

AM Sensitivity:  300 µV/m

Dimensions (W x H x D):  440 x 122 x 368 mm

Weight:  8,13 kg

Genesis M60 power amp

 

The Genesis Monoblock 60-Watt Valve (or vacuum tube) Amplifier is a limited-edition product that was created as proof of concept that a well-designed, well-executed, value-priced amplifier will be able to drive any Genesis loudspeaker with ease and authority. The transparency, detail retrieval, dynamics, and wide frequency extension of Genesis loudspeakers place great demands on the quality of amplification. Because of our emphasis on absolute fidelity™ above all else, the speakers do represent a difficult, but not impossible load for an amplifier to drive.
The M60 was created as a partner to a pair of Genesis loudspeakers, and as a result, it has the quality of amplifiers costing much more. The M60, together with a pair of Genesis loudspeakers, will give your entire music collection a whole new life. In a well set-up system, it is capable of transporting the musical performance into your room. The hiss and hum normally associated with vacuum tubes are completely absent, while retaining the richness and rightness of the best of this genre of amplifiers.

While developing a value-priced product, quality has not been scaled down. Hand-selected, precisely matched components are used throughout: custom-made military-spec paper-in-oil capacitors with aluminum cans are selectively used; the output transformers and power transformer are laboriously hand wound to precise specifications tailored to the circuit and valves used. Point-to-point wiring using solid-core silver wire is used in the entire signal path. This reduces the resistance, capacitance and inductance normally associated with ordinary printed circuit boards. Each and every unit is first burned-in on the test bench, and then run in for over 100 hours before final test and packaging.

Very little feedback is used – just enough to make the amplifier unconditionally stable. Not the excessive amount usually employed to make amplifiers measure better at the expense of musicality. The result of all this obsessive attention to detail is a fabulously musical power amplifier capable of driving almost any loudspeaker in the world.

Before using this unit, please take the time to carefully review the safety instructions and operating information contained in this Owner’s Manual and Set-up Guide. Becoming familiar with your new amplifier and the correct operating procedures will help assure you of safe usage, reliable operation, and maximum musical enjoyment.

 

About M60 Amplifier

The Genesis Monoblock 60-Watt Valve Amplifier uses proprietary circuits, high quality components, and state-of-the-art vacuum tube topology to deliver sonic performance rivaling other amplifiers costing much more. The design objectives of this product are to: 1.  Deliver musically accurate amplification, 2.  Provide a vacuum tube amplifier that would approach the reliability and ease of use of solid state amplifiers, and 3.  Provide an affordable vacuum tube amplifier that would be able to drive the Genesis family of loudspeakers. A valve amplifier matched with an appropriate loudspeaker can produce a sound that we can only call magic. The hard, brittle, and edgy presentation of many transistor amplifiers is contrasted with the rich, lush and silky sound of the tube amplifier. Often, valve amplifiers offer much better imaging and sound stage presentation compared to an equivalently priced solid-state amplifier. It is more musical, and the performance seems almost alive.

A properly designed and built valve amplifier, such as the Genesis M60, is capable of reproducing midrange and treble with crystal clear definition – the sound can only be described as smooth and silky, and musically accurate with the right timbre and harmonics.  As for the bass, the M60 is designed to maintain tight control over the bass, and deliver the powerful punch and dynamics at the low end with the solidity and weight of transistor amplifiers. 

Design and Construction

The Genesis M60 uses a single 6SL7 as an input stage in the standard mu-follower configuration with 6SN7’s in the driver stage. No ordinary 6SN7’s for the M60 though – military spec 6N8P are selected for their reliability and durability, and then hand-picked for linearity and low noise. A matched-pair of KT88 power output valves are used to deliver a very conservative 60 watts. While the M60 is developed as a value-priced product, quality has not been scaled down. Extensive listening tests were done throughout the design process, and expensive components were used where they were appropriate. Custom-made military-spec paper-in-oil capacitors with aluminum cans are selectively used and low-noise gold plated military-spec ceramic tube sockets are used throughout.

Very little feedback is used – just enough to make the amplifier unconditionally stable. Not the excessive amount usually employed to make amplifiers measure better at the expense of musicality.

During construction, all components are hand-selected and precisely matched. The output transformers and power transformer are laboriously hand wound to precise specifications tailored to the circuit and valves used.  Point-to-point wiring using solid-core silver wire is used in the entire signal path. This reduces the resistance, capacitance and inductance normally associated with ordinary printed circuit boards.

The only PCBs you see in the “guts” of the amplifier are the boards associated with biasing of the power tubes, and the soft-start electronics. The output transformers are custom designed and hand-wound with a core of grain-oriented silicon steel specifically for the output tubes used. Two output taps are provided on the secondary – 4ohm and 8ohm – with the 4 Ohm tap specifically tuned using Genesis loudspeakers. Each amplifier is extensively inspected and tested at every stage of manufacturing. It is also allowed to burn-in before the valves are biased and calibrated, and then run-in for 100 hours before finally being electronically tested prior to packing for shipment. Hence, it should come to you ready to use straight out of the box

Specifications

Rated Power Output:   60 W RMS

Frequency Response:  20 Hz - 30 kHz,   (<1% T.H.D)

Input Impedance:  250 k Ω

Output Impedance:  4 Ω  or 8 Ω  

Signal to Noise Ratio:  >90 dB

Vacuum Tubes:  KT88 x 2;  6N8P x 2 (or 6SN7 may be used); 6SL7 x 1 (or 5691 may be used)

Dimensions (W x H x D):  480 x 185 x 380 mm (17" x 7 ¼” x 15”)

Weight:  17 kg (38 lbs)