Tannoy Dover loudspeakers

Dual Concentric Time Compensated Loudspeaker System

The famous Tannoy Dual Concentric in a modestly sized cabinet that can be floor standing on its own plinth, mounted on speaker stands or a bookshelf.

A 10-inch (254 mm) version of the Dual Concentric drive unit is used in an infinite baffle (unported) cabinet, with rigid bracing and graded acoustic foam damping, to give the best possible sound reproduction in a loudspeaker of this size.

Each Dover is supplied with a separate plinth. If used as a floor standing loudspeaker this plinth can be attached to the base of the cabinet with the screws provided. When used on stands or shelves this plinth is not required.

The Dover is designed to provide the high quality sound of the Tannoy Dual Concentric system in a size of loudspeaker to suit smaller listening rooms.

The high quality of sound reproduction is matched by the standard of cabinet construction. Every Dover is finished in genuine walnut veneers, oiled by hand and the baffle is covered in real cork.

 

The Tannoy Dual Concentric is, therefore, a true single point sound source loudspeaker system which eliminates unnatural time delay, and provides the smooth consistent intensity of sound necessary to create a precise stereo image.

 

Specifications

Recommended Amplifier Power (RMS per channel into 8 Ω ):  30 - 150 watts

Peak Power Handling:  250 watts

Impedance:  8 Ω  (Nominal):  5,5 Ω  (minimum)

Sensitivity (for 1 W at 1 m):  93 dB (domestic); 90 dB (Anechoic)

Frequency Response;  50 Hz - 20,000 Hz ±3 dB

Phase Response:  ±18° between 150 Hz - 8 kHz

Time Compensation:  better than ±20 µ sec 150 Hz - 8 kHz

Dispersion:  90° conical (including angea at -6 dB points at 10 kHz)

Crossover Frequency:  1,2 kHz

Crossover Type:  Passive, low loss, time compensated type 1040

Drive Type: 254 mm (10") Tannoy Dual Concentric high compliance type 2558

Distortion:

Less than 5% 3rd harmonic at half power 150 Hz - 20 kHz

Less than 0,6% 3rd harmonic for 85 dB 80 Hz - 20 kHz

Cabinet Type:  Infinite baffle

Cabinet Volume:  31 litres (1,1 cu.ft)

Cabinet Construction:  18 mm particle board with rigid bracing with internal damping

Finish :  Real walnut veneers

Grille :  Woven cloth over wooden frame

Dimensions (H x W x D):  580 x 310 x 285 mm (23" x 12" x 11")

System Weight:  18 kg (39,5 lb)

Shipping Weight:  20 (44 lb)

Tannoy Mercury MkII speakers

The Mercury MkII loudspeakers share the advantage of high power handling and sensitivity with low distortion and smooth frequency response - qualities which have ben the hallmark of Tannoy high fidelity loudspeaker systems for many years.

 

 Loudspeaker Enclosures

To provide optimum performance a loudspeaker cabinet must be rigidly constructed and acoustically treated. The Mercury MkII is constructed from high density particle board lined with an acoustic material to absorb internal reflections and eliminate standing waves. The cabinet is internally braced at antinodal points to minimise cabinet resonance and colouration and the narrow front profile ensures good horizontal dispersion. Low frequency loading of the system is provided by a carefully designed ducted port which reduces distortion and extends the bass response. Each loudspeaker is fitted with a detachable grille of acoustically transparent cloth stretched over a wooden frame.

 

 Drive Units

High frequencies are produced by a polyamide dome treble unit which combines a very smooth response with low distortion and wide dispersion and gives a finely detailed sound. A magnetic cooling Ferrofluid is incorporated and combines high power handling capacity with reliability and protection against sudden overload transients. The asymmetrical front plate is sculptured to improve reproduction by reducing diffraction effects.

Low and midrange frequencies are reproduced by a 200 mm polyolefin cone unit. This cone material gives a very smooth frequency response with negligible colouration. A newly developed cone/coil apex configuration provides a very rigid construction at the point where the cone is driven by the 4 layer high temperature voice coil.

 

Crossover Network

The crossover network receivers the electronical signal containing the fill frequency spectrum from the amplifier and divides it between the bass/midrange unit and the soft dome treble unit. We use only high quality components, including low loss solid dielectric capacitors and generously rated resistors and inductors. All components are hard wired and internal wiring is by heavy duty cable to minimise signal loss. All components are securely mounted to ensure maximum reliability and freedom from resonance.

 

Amplifier Power

In our loudspeaker specifications we recommend a suitable range of amplifier powers. The peak power handling capability of all Tannoy Loudspeakers will allow higher amplifier powers to be used with wide dynamic range material. Care must be taken with all amplifiers, irrespective of power output, to avoid abnormal conditions such as switch on surges or amplifier overloading (clipping and distortion) which may result in peaks of power greatly in excess of the specified ratings, and possible subsequent damage to the loudspeaker.

 

Specifications

Recommended Amplifier Power (RMS per channel into 8 Ω ):  10 - 120 watts

Peak Power Handling:  120 watts

Impedance (Nominal):  8 Ω

Sensitivity (for 1 W at 1 m):  93 dB (domestic); 90 dB (Anechoic)

Frequency Response;  52 Hz - 23,000 Hz ±3 dB

Phase Response:  better than ±45° between 120 Hz - 10 kHz

Crossover Frequency:  3 kHz

Crossover Type:  First order low pass , Second order high pass, Hard wired low loss

Apparent Acoustic Source: 59 mm behind front surface of baffle

Bass/Mid-range Unit:  200 mm (8") 2088G

Treble Unit:   28 mm (1,1") 0248G Polyamide

Horizontal Dispersion:  Greater than 150° up to 12 kHz

Cabinet Volume:  19,5 litres (0,72 cu.ft)

Cabinet Construction:  12/15 mm high density particle with 12 mm shelf brace

Bass Loading:  Overdamped offset ducted port

Cabinet Damping:  Specialist acoustic product

Grille Construction:  Acoustically transparent cloth over wooden frame

Dimensions (H x W x D):  498 x 249 x 300 mm (21,5" x 23" x 11,8")

System Weight:  7,1 kg (15,6 lb) each

Shipping Weight:  16 kg (35,2 lb) pair

 

kenwood KR-2300 receiver

AM/FM Stereo Receiver

The Component That proves Quality Need not Be Expensive

Kenwood has designed the KR-2300 to prove that a quality component need not be beyond the reach of the budget-minded audiophile. With specifications and control features that are truly astounding, the KR-2300 looks and performs like a far more expensive unit, even down to such luxury features as "mike mixing" in any mode. Compare its specifications. Compare its fine features with other, more expensive units. Then, listen to the KR-2300 yourself.

You'll really appreciate how much receiver Kenwood offers for the price.

 

"Mike Mixing" In any mode

A unique features that will certainly add to your stereo enjoyment, Mike Mixing permits you to blend your own voice or instrumental accompaniment with sound from any other program source. Microphone jack and level control are positioned on the front panel for convenience

 

Specifications

FM Tuner Section

Usable Sensitivity (IHF):  2,5 µV

Signal-to-Noise Ratio (IHF):  better than 60 dB

Capture Ratio (IHF):  4.0 dB

Selectivity, Alt Ch. (IHF):  40 dB

Stereo Separation: 30 dB at 1 kHz

Total Harmonic Distortion (400 Hz, 100% Mod.)

Mono :  0,8%

Stereo :  1,0 %

Image Rejection:  50 dB

IF Rejection Ratio:  95 dB

Spurious Signal Rejection:  80 dB

AM Suppression Ratio:  45 dB

Sub-Carrier Suppression:  40 dB

Antenna Impedance:  300 Ω (balanced) 75 Ω  (unbalanced)

Front End:  1 FET, 3 Gang

AM Tuner Section

Usable Sensitivity (IHF):  25 µV

Signal-to-Noise Ratio:  45 dB

Selectivity (IHF):  25 dB

Image Rejection Ratio:  45 dB

IF Rejection Ratio:  35 dB

Antenna:  Built-in ferrite bar antenna and external antenna

Front End:  2 gang

IF Stage:  2 Gang

Amplifier Section

RMS Power Output

Both Channels Driven

2 x 14 watts into 8 Ω  at 1 kHz

2 x 15 watts into 4 Ω  at 1 kHz

Each Channel Driven

2 x 17 watts into 8 Ω  at 1 kHz

2 x 22 watts into 4 Ω  at 1 kHz

Dynamic Power Output

44 watts into 8 Ω

64 watts into 4 Ω 

Total Harmonic Distortion

1% at rated power output, 0,2% at 1/2 rated power into 8 Ω  at 1 khz

Intermodulation Distortion:  1% at rated output

Frequency Response:  25 - 50,000 Hz ±2 dB

Power Bandwidth (IHF):  30 - 50,000 Hz

Damping Factor:  30 at 8 Ω

Input Sensitivity/Impedance (for rated output)

Phono :  3 mV/50 K Ω

Aux, Tape Play:  120 mV/30 k Ω

Mic. :  4,5 mV/20 K Ω 

Signal-to-Noise Ratio

Phono :  65 dB

Aux, Tape Play :  70 dB

Mic :  60 dB

Tone Controls

Bass :  ±8 dB at 100 Hz

Treble :  ±8 dB at 10 kHz

Loudness Control (at -30 dB):  +8 dB at 100 Hz

General

Switches speakers:  Power Off, A, B, A + B, Phones

Mode:  Mono, Stereo

Selector:  AM, FM Auto, Phono, Aux

Others Switches:  Tape Mon, Loudness, Mic Jack with VR

AC Outlets:  1 switched and 1  unswitched

Power Requirements:  110-120 V, AC 50/60 Hz

Power Consumption:18 watts at no signal,  (110 watts at full power output)

Dimensions (W x H x D):  450 x 133 x 335 mm (17-3/4" x 5-5/8" x 13-7/8")

Weight:  9,4 kg (20,7 lbs)

 

Kenwood KR-2200 receiver

FM/AM Stereo Receiver

Brilliant Stereo performance, Amazing Stereo Value.

Ideal for den, dorm, or as the electronic center of a second stereo system in your home, Kenwood's KR-2200 receiver boasts performance specifications and control features that belie its budget price. Convinced that a lower powered receiver need not sacrifice sound quality within its ratings, Kenwood engineers have come up with a receiver whose technical specifications and features will truly astound you. If 30-watts of dynamic )IHF) power is all you need or can afford, the KR-2200 will give you the most for your stereo investment.

 

Power Amplifier Section

Harmonic and intermodulation Distortion of the power amplifier section of the KR-2200 is less than 0,8% at rated output, and the amplifier can handle any speaker impedance from 4 Ω  to 16 Ω . At normal listening levels, distortion is actually less than 0,2%

Mike Mixing In any mode

A unique features that will certainly add to your stereo enjoyment, Mike Mixing permits you to blend your own voice or instrumental accompaniment with sound from any other program source. Microphone jack and level control are positioned on the front panel for convenience

Sophisticated Controls for your sound system

The KR-2200 provides a broad range of controls to give you complete mastery over your sound system. Beside the individual bass and treble tone controls, a dual concentric Volume/Balance Control enables you to set up precise channel balance in addition to controlling overall loudness. A Speaker Selector Switch activates two pairs of stereo speaker systems, either individually or simultaneously , to let you enjoy stereo in different locations. An input Selector chooses AM, FM Auto, FM Mono, Phone, or Tape/Aux, while a Loudness Compensation Switch permits low-level listening.

FM Tuner Section

A FET (Field Effect Transistor) in the specially-designed front end, a three-section tuning system, and a permanently aligned mechanical IF filter give the KR-2200 an IHF sensitivity of 2,5 µV with a Signal-to-Noise Ratio of better than 60 dB. With an FM stereo separation of 30 dB at 1000 Hz and a spurious signal rejection of 80 dB, you can be sure of clean, interference-free FM reception of all your favorite FM stations.

Other Features

Front Panel Jack for Stereo headphones;

Signal Strength Tuning Meter

Luminous Dial Pointer for easy tuning

Pin and DIN Connector for Tape Deck

1 Switched AC Outlet

 

Specifications

FM Tuner Section

Sensitivity (IHF):  2,5 µV

Signal-to-Noise Ratio:  60 dB

Capture Ratio (IHF):  4.0 dB

Selectivity, Alt Ch. (IHF):  40 dB

Stereo Separation: 30 dB at 1 kHz

Total Harmonic Distortion (400 Hz, 100% Mod.)

Mono :  0,8%

Stereo :  1,0 %

Image Rejection:  50 dB

IF Rejection Ratio:  95 dB

Harmonic Spurious Rejection:  80 dB

AM Suppression Ratio:  45 dB

Sub-Carrier Suppression:  40 dB

Antenna Impedance:  300 Ω

AM Tuner Section

Sensitivity (IHF):  25 µV

Signal-to-Noise Ratio:  45 dB

Selectivity:  25 dB

Image Rejection Ratio:  45 dB

IF Rejection Ratio:  35 dB

Amplifier Section

Continuous Power Output

Both Channels Driven

16 watts :  8 W + 8 W at 8 Ω  from 50 - 20,000 Hz

17 watts :  8,5 W + 8,5 W at 4 Ω  at 1 kHz

Each Channel Driven

11/11 watts at 4 Ω  at 1 kHz

10/10 watts at 8 Ω  at 1 kHz

Dynamic Power Output (IHF)

Both Channel Driven

30 watts at 4 Ω

26 watts at 8 oh

Total Harmonic Distortion

0,8% at rated output

0,2% at -3 dB

Intermodulation Distortion

0,8% at rated output

0,2% at -3 dB

Frequency Response:  25 - 35,000 Hz ±2 dB

Power bandwidth (IHF):  30 - 20,000 Hz

Input Sensitivity/Impedance (for rated output)

Phono :  3 mV/50 K Ω

Aux, Tape Play:  120 mV/30 k Ω

Mic. :  4,5 mV

Hum and Noise

Phono :  60 dB

Aux, Tape Play :  70 dB

Mic. :  60 dB

Tone Controls

Bass :  ±8 dB at 100 Hz

Treble :  ±8 dB at 10 kHz

Loudness Control"  +8 dB at 100 Hz

Damping Factor:  45 at 8 Ω

General

Switches speakers:  Power Off, A, B, A + B, Phones

Tone Controls:  2 dB Step-Type, Bass, Treble

Selector:  AM, FM Auto, FM Mono, Phono, Tape/Aux

Front Panel Jacks: Phones, Microphone

Level Control: Microphone Mixing

AC Outlets:  1 unswitched

Power Requirements:  110-120 V, AC 50/60 Hz

Power Consumption:  56 watts at full power output

Dimensions (W x H x D):  17-5/8" x 4-3/4" x 15-1/8"

Weight:  13,4 lbs

Walnut Cabinet:  Included

 

Aiwa AP-2300 turntable

Semi- Automatic Direct Drive turntable

Features:

High-efficiency D-D Linear Torque Motor - wow and flutter below 0,035% (WRMS)

Super-solid resin cabinet with revolutionary "Space Saving" design

Fully-adjustable insulator feet

High-sensitivity J-shaped tonearm

Viscous-damped cueing

Full Front Operation

Variable pitch control ±3%

The pitch control knob provided lets you adjust the player's rotation precisely to the standard 33-⅓ or 45 rpm speeds, but there's another big advantage; pitch can be changed by as much as plus or minus 3 percent. Use this control when accompanying the record on your guitar or other instrument, or to vary musical pitch according to listening preference.

 

Easy-to-read stroboscope design

To add to the AP-2300's clean, simple appearance, the stroboscopic markings along the platter have been reduced from the usual 4 rows to 2. when employing the pitch control to adjust rotation speed, the knob should be moved until the upper or lower row of markings appears to be standing still. This indicates precise setting to the 33-⅓ and 45 rpm rotation speed , respectively.

 

Exclusive "Rec-Sync" disc-to-cassette automatic recording mechanism

The Ap-2300 was designed for use with other Aiwa component, but goes a step beyond mere matching for appearance sake; by connecting the cord provided with the unit from the special "rec-sync" jack at the rear panel of the AP-2300 to most Aiwa cassette deck models, player-to-cassette recording can be commenced automatically in tandem with the lowering of the played tonearm of the disc. Synchronized recording operation - it's another reason why Aiwa -built components work superbly together as well as separately.

 

Specifications

Drive System:  Direct-drive system

Motor:  2-phase, 8-pole Slotless Hall effect motor

Turntable Platter:  aluminum alloy diecast

Diameter:  306 mm

Weight:  1,0 kg

Speeds:  33-⅓ and 45 rpm

Variable Pitch Control:  ±3%

Wow and Flutter:  0,035% WRMS / 0,065% DIN

Signal-to-Noise Ratio :  60 dB (IEC-B curve); 70 dB (DIN-B curve)

Tonearm

Type:  Static Balanced type

Effective Arm length:  215 mm

Overhang:  15 mm

Offset Angle:  21,5 °

Tracking Error:  +5,8°, +0,3°

Suitable Cartridge Weight:  3 - 12 g

Applicable Tracking Force:  0 - 3 g (direct readout of tracking force)

Cartridge Headshell Weight:  23 g (including headshell)

Cartridge Type:  Moving Magnet  (MM)

Output Power:  3 mV (1 kHz, 5cm/sec.)

Needle:  0,5 mil diamond

Stylus Pressure:  2 g

Frequency Response:  20 - 20,000 Hz

Semiconductors:  2 ICs; 9 Transistors; 9 Diodes,

Power Supply:  AC 110-120 V, 220-240 V 50/60 Hz

Power Consumption:  6 watts

Dimensions (W x H x D):  424 x 123 x 359 mm (16-3/4" x 4-7/8" x 14-3/16")

Weight:  7 kg (15,4 lbs)

 

Aiwa AP-2200 turntable

Semi- Automatic Direct Drive turntable

Features:

High-efficiency D-D Linear Torque Motor - wow and flutter below 0,036% (WRMS)

Super-solid resin cabinet with revolutionary "Space Saving" design

High-sensitivity S-shaped tonearm with nowly designed stylus pressure gauge.

Full Front Operation

Simplified stroboscope and speed adjust controls

Exclusive "Rec-Sync" disc-to-cassette automatic recording mechanism

Free-stop dust  cover, viscous-damped cuing, anti-skating, auto-return and other…

 

Specifications

Drive System:  Direct-drive system

Motor:  2-phase, 8-pole linear torque DC servo motor

Turntable Platter:  aluminum alloy diecast

Diameter:  306 mm

Weight:  1,0 kg

Speeds:  33-⅓ and 45 rpm

Variable Pitch Control:  ±3%

Wow and Flutter:  0,035% WRMS

Signal-to-Noise Ratio :  60 dB (IEC-B curve)

Tonearm

Type:  Static Balanced type

Effective Arm length:  215 mm

Overhang:  15 mm

Offset Angle:  21,5 °

Usable Cartridge Weight:  3,5 - 11 g

Stylus Pressure Range:  0 - 3 g

Semiconductors:  2 ICs; 9 Transistors; 10 Diodes, 2 Hall devices

Power Supply:  AC 120 V, 220-240 V 50/60 Hz

Power Consumption:  5 watts

Dimensions (W x H x D):  424 x 123 x 359 mm (16-3/4" x 4-7/8" x 14-3/16")

Weight:  6,9 kg (15,2 lbs)

 

Lineage CP100 preamplifier

Many decades of leadership in American audio electronics.

Saul Marantz and John Curl create Lineage

Perhaps no man can be better said to represent the philosophy of excellence in audio than Saul Marantz. Many audiophiles and journalists consider him the father of high performance audio. The electronic components he created during the 1950's and 60's are considered classics - respected and in demand in the U.S., Europe and Japan.

In the 1970's, when Saul Marants was introducing the first Phased Array loudspeaker, a young electronics designer named John Curl was gaining international recognition for his innovative solid state electronics. These designs were also destined to become classics.

Some years later, Saul Marantz and John Curl have joined together in a new endeavor - one whose name, Lineage, reflects not only a distinguished history, but also a future of continued leadership in the American audio industry.

To create new classics for the 1980's and 90's, Lineage has brought together a multi-generational group of talented audio professionals. Their design brief is startlingly simple; To develop quality products of lasting value.

 

The CP100 Control Preamplifier, shown above, is the first of these new classics. The CP100 employs an innovative all-FET circuit topology and precision parts to assure true audiophile sound quality. It also offers a full complement of features, ease of operation and an integrity of construction that will provide years of musical pleasure.

Lineage components are made available through a network of experienced audio/video specialist. They are knowledgeable professionals who offer quality products, proper demonstration facilities and a commitment to after-sale service and support.

The first Lineage products will be available in late 1987. we hope that you'll take the opportunity to audition Lineage, the innovative audio company with many decades of experience.

 

Leak 3080 speakers

The new Leak Time Delay Compensated loudspeakers series is the result of an intensive research program, which attempted to isolate, measure and evaluate the audible effects of all known loudspeaker distortions. The research undertaken evaluated four key areas of performance:

Intermodulation distortion

Delayed resonance

Time distortion doppler distortion

From the data accumulated, Leak were able to establish minimum levels of audibility for each type of distortion and then design a loudspeaker whose distortions are unquestionably below these figures. The result is the 3000 series of Leak time delay compensated loudspeakers.

 

Time Delay Compensation

In conventional loudspeakers all drive units are mounted on a flat baffle which means a time delay occurs between the sound radiated from the woofer and that radiated from the treble unit. The stepped baffle on the 3000 series allows for the physical position of the drive units to be changed in order to compensate for time delay differences. This gives the sound an added depth and realism.

 

Bass - Midrange

The research work on doppler distortion enabled the use of combined bass - midrange drive units in the 3020; 3030, and 3050 models,  thus making unnecessary the extra band-pass filter normally associated with the midrange unit. The result is a significant improvement in the realism of this part of the audio spectrum. The 3030 and 3050 models have two combined bass - midrange units which allow them to achieve the bass reproduction of much larger units.

 

3080 Specifications

Power Handling:  80 watts

Suitable for amplifiers from (rms/channel):  12 - 90 watts

Sensitivity (1 W/1 m):  85 dB

Nominal Impedance:  8 Ω

Typical Frequency Response:  38 Hz to 22,000 Hz (±3 dB)

Drive Units

Bass :  1 x 250 mm (10") woofer

Midrange :  1 x 170 mm (6-3/4") driver

Treble : 1 x 19 mm (3/4") dome tweeter

Bass Loading:  acoustic suspension

Drive Unit Response:

Bass :  36 Hz at -3 dB point

Treble :  22 kHz at -3 dB point

Crossover Points and Rates:  450 Hz, 3,5 kHz (6, 12 , 18 dB/oct; 11 element)

Cabinet:  Natural walnut veneer on high density particle board

Grille Cloth:  Semi opaque acoustically transparent

Nominal Enclosure Volume:   60 Litres (Bass) 12 Litres (Midrange)

Dimensions (H x W x D):  845 x 340 x 438 mm

Weight:  33 kg (72 lbs)

 

Leak 3050 loudspeakers

The new Leak Time Delay Compensated loudspeakers series is the result of an intensive research program, which attempted to isolate, measure and evaluate the audible effects of all known loudspeaker distortions. The research undertaken evaluated four key areas of performance:

Intermodulation distortion

Delayed resonance

Time distortion doppler distortion

From the data accumulated, Leak were able to establish minimum levels of audibility for each type of distortion and then design a loudspeaker whose distortions are unquestionably below these figures. The result is the 3000 series of Leak time delay compensated loudspeakers.

 

Time Delay Compensation

In conventional loudspeakers all drive units are mounted on a flat baffle which means a time delay occurs between the sound radiated from the woofer and that radiated from the treble unit. The stepped baffle on the 3000 series allows for the physical position of the drive units to be changed in order to compensate for time delay differences. This gives the sound an added depth and realism.

 

Bass - Midrange

The research work on doppler distortion enabled the use of combined bass - midrange drive units in the 3020; 3030, and 3050 models,  thus making unnecessary the extra band-pass filter normally associated with the midrange unit. The result is a significant improvement in the realism of this part of the audio spectrum. The 3030 and 3050 models have two combined bass - midrange units which allow them to achieve the bass reproduction of much larger units.

3050 Specifications

Power Handling:  50 watts

Suitable for amplifiers from (rms/channel):  12 - 60 watts

Sensitivity (1 W/1 m):  85 dB

Nominal Impedance:  8 Ω

Typical Frequency Response:  48 Hz to 22,000 Hz (±3 dB)

Drive Units

Bass/Midrange :  2 x 170 mm (6-3/4") driver

Treble : 1 x 19 mm (3/4") dome tweeter

Bass Loading:  acoustic suspension

Drive Unit Response:

Bass :  48 Hz at -3 dB point

Treble :  22 kHz at -3 dB point

Crossover Points and Rates:  4 kHz (18 dB/oct; 11 element)

Cabinet:  Natural walnut veneer on high density particle board

Grille Cloth:  Semi opaque acoustically transparent

Nominal Enclosure Volume:   40 Litres

Dimensions (H x W x D):  640 x 300 x 348 mm

Weight:  19 kg (42 lbs)

 

 

Leak 3030 loudspeakers

The new Leak Time Delay Compensated loudspeakers series is the result of an intensive research program, which attempted to isolate, measure and evaluate the audible effects of all known loudspeaker distortions. The research undertaken evaluated four key areas of performance:

Intermodulation distortion

Delayed resonance

Time distortion doppler distortion

From the data accumulated, Leak were able to establish minimum levels of audibility for each type of distortion and then design a loudspeaker whose distortions are unquestionably below these figures. The result is the 3000 series of Leak time delay compensated loudspeakers.

 

Time Delay Compensation

In conventional loudspeakers all drive units are mounted on a flat baffle which means a time delay occurs between the sound radiated from the woofer and that radiated from the treble unit. The stepped baffle on the 3000 series allows for the physical position of the drive units to be changed in order to compensate for time delay differences. This gives the sound an added depth and realism.

 

Bass - Midrange

The research work on doppler distortion enabled the use of combined bass - midrange drive units in the 3020; 3030, and 3050 models,  thus making unnecessary the extra band-pass filter normally associated with the midrange unit. The result is a significant improvement in the realism of this part of the audio spectrum. The 3030 and 3050 models have two combined bass - midrange units which allow them to achieve the bass reproduction of much larger units.

 

3030 Specifications

Power Handling:  35 watts

Suitable for amplifiers from (rms/channel):  12 -35 watts

Sensitivity (1 W/1 m):  85 dB

Nominal Impedance:  8 Ω

Typical Frequency Response:  60 Hz to 22,000 Hz (±3 dB)

Drive Units

Bass/Midrange :  2 x 130 mm (5") driver

Treble : 1 x 19 mm (3/4") dome tweeter

Bass Loading:  acoustic suspension

Drive Unit Response:

Bass :  60 Hz at -3 dB point

Treble :  22 kHz at -3 dB point

Crossover Points and Rates:  4 kHz (18 dB/oct; 11 element)

Cabinet:  Natural walnut veneer on high density particle board

Grille Cloth:  Semi opaque acoustically transparent

Nominal Enclosure Volume:   20 Litres

Dimensions (H x W x D):  520 x 250 x 283 mm

Weight:  11 kg (24 lbs)

 

Leak 3020 loudspeakers

The new Leak Time Delay Compensated loudspeakers series is the result of an intensive research program, which attempted to isolate, measure and evaluate the audible effects of all known loudspeaker distortions. The research undertaken evaluated four key areas of performance:

Intermodulation distortion

Delayed resonance

Time distortion doppler distortion

From the data accumulated, Leak were able to establish minimum levels of audibility for each type of distortion and then design a loudspeaker whose distortions are unquestionably below these figures. The result is the 3000 series of Leak time delay compensated loudspeakers.

 

Time Delay Compensation

In conventional loudspeakers all drive units are mounted on a flat baffle which means a time delay occurs between the sound radiated from the woofer and that radiated from the treble unit. The stepped baffle on the 3000 series allows for the physical position of the drive units to be changed in order to compensate for time delay differences. This gives the sound an added depth and realism.

 

Bass - Midrange

The research work on doppler distortion enabled the use of combined bass - midrange drive units in the 3020; 3030, and 3050 models,  thus making unnecessary the extra band-pass filter normally associated with the midrange unit. The result is a significant improvement in the realism of this part of the audio spectrum. The 3030 and 3050 models have two combined bass - midrange units which allow them to achieve the bass reproduction of much larger units.

 

3020 Specifications

Power Handling:  25 watts

Suitable for amplifiers from (rms/channel):  12 watts

Sensitivity (1 W/1 m):  85 dB

Nominal Impedance:  8 Ω

Typical Frequency Response:  62 Hz to 22,000 Hz (±3 dB)

Drive Units

Bass/Midrange :  1 x 130 mm (5") driver

Treble : 1 x 19 mm (3/4") dome tweeter

Bass Loading:  reflex Fourth Order Chebyshev high-pass filter

Drive Unit Response:

Bass :  62 Hz at -3 dB point

Treble :  22 kHz at -3 dB point

Crossover Points and Rates:  3 kHz (18 dB/oct; 11 element)

Cabinet:  Natural walnut veneer on high density particle board

Grille Cloth:  Semi opaque acoustically transparent

Nominal Enclosure Volume:  12 Liters

Dimensions (H x W x D):  440 x 210 x 270 mm

Weight:  7,5 kg (16 lbs)