What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Harman/Kardon HK580i receiver

The hk580i is the lowest priced Harman/Kardon receiver ever to incorporate the incredible accuracy and reception of a digital, quartz locked tuner.

The tuner section is today's state-of-the-art.. You can tune up or down manually by pressing and holding one of the tuning buttons, or you can let the receiver scan automatically. Each time the scanner reaches a station, it will stop and allow the station to play for several seconds. It will continue scanning and playing until you find the station you want and defeat the scanning system.

For convenience, the hk580i gives you 4 memory presets, each able to store one AM station and one FM station for instant recall at the touch of a button.

The preamplifier and amplifier sections are just as impressive as our hk570i, with 35 amps available on demand. Accommodations for two tape decks and two speaker systems. There's also tape copy capability and more.

The hk580i, it brings the accuracy of advanced digtal technology to an affordable receiver.

 


Specifications

Amplifier Section

RMS Power Output (into 8   , 20-20,000 Hz):  45 watts (at less than 0,02% T.H.D.

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

Intermodulation Distortion (at rated output):  ,06%

TIM Distortion (at rated output):  ,01%

Slew Rate/Power Amplifier:  60 volts/µsec

Overall Negative Feedback:  25 dB

Hum and Noise (A-weighted):

Phono :  -88 dB

Aux :  -100 dB

Residual :  -100 dB

Phono Overall:  >150 mV

Tuner Section

FM Sensitivity MONO:  1,8 µV

50 dB Quieting Sensitivity

Mono :  3,0 µV

Stereo :  35 µV

FM Noise:  -75 dB

Capture Ratio:  1,0 dB

Alternate Channel Selectivity:  -75 dB

IF Rejection:  100 dB

AM Rejection:  66 dB

Stereo Separation (1 kHz):  48 dB

FM Frequency Response at Detector Output:  DC -100 kHz (-3 dB)

AM Sensitivity:  300 µV/m

AM Selectivity:  45 dB

Am Alternate Channel Selectivity:  42 dB

AM Image Rejection:  56 db

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

Weight:  10,9 kg

Harman/Kardon HK570i receiver

Ultrawideband Linear Phase Stereo Receiver

For a medium priced receiver, the hk570i gives you better sound and more features than other comparably priced receivers.

It starts with a full 45 watts per channel, with instantaneous current capability up to 35 amps under peak demands. Our 5-level signal strength meter and station lock beacon help make sure you're always tuned accurately. The Auto FM feature automatically shifts the receiver into the mono mode when signals are so weak that stereo reception is poor. And all tone controls are defeatable, for the clearest cleanest, most distortion-free reproduction possible.

The hk570i also provides convenience features you 'll appreciate. Like tape copy functions and monitoring capabilities for two decks. Plus a subsonic filter, and a high cut filter that help eliminate surface noises from records.

The hk570i, perhaps the best combination of price  and performance on the market

 


Specifications

Amplifier Section

RMS Power Output (into 8  , 20-20,000 Hz):  45 watts (at less than 0,02% T.H.D.

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

Intermodulation Distortion (at rated output):  ,06%

TIM Distortion (at rated output):  ,01%

Slew Rate/Power Amplifier:  60 volts/µsec

Overall Negative Feedback:  25 dB

Hum and Noise (A-weighted):

Phono :  -88 dB

Aux :  -100 dB

Residual :  -100 dB

Phono Overall:  >150 mV

Tuner Section

FM Sensitivity MONO:  2,0 µV

50 dB Quieting Sensitivity

Mono :  3,1 µV

Stereo :  37 µV

FM Noise:  -75 dB

Capture Ratio:  1,3 dB

Alternate Channel Selectivity:  -70 dB

Stereo Separation (1 kHz):  50 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:  9,54 kg

 

Bozak The Bard B-1002 speaker

Bozak, outdoor portable 2-way speaker

The Bozak Bard is a completely weather-proof portable speaker designed for outdoor use. Bard is the finest outdoor sound system ever made available for the home. It is unique, not only in its resistance to the elements (sun, rain, sleet or snow), but can also deliver full realistic sound in the difficult open air environment.

The rugged hemispheric construction of the Bard houses Bozak's famous 8" wide dispersion aluminum driver, with its tremendous power handling capacity, and is complemented by a 2" aluminum cone tweeter. Working together they provided clean, distortion-free music in outdoor applications when little or no reflection from surrounding watts is often encountered.

The famous Bozak 8" aluminum driver and 2" aluminum tweeter are housed in an aluminum enclosure enabling the Bard to be left outside all year round, providing party music in the summer and seasonal music through the holidays.

 

Specifications

Type: Outdoor 2-way speaker

Driver:

1 x 8-inch midrange/woofer

1 x 2-inch tweeter

Frequency Response:  30 - 20,000 Hz

Impedance:  8  nominal

Power Handling:  12 watts (min.) 80 watta (max.)

Connector: Jacks and plugs

Dimensions (D x H x D):  18" x 12" x 12"

Weight (shipping):  10 kg (21 lbs)

Axiom AX 1,5 loudspeakers


 Inexpensive speakers tend to be studies in compromise, attemps to achieve smooth response with low-priced drivers and very simple crossover networks. Recently, however, the qaulity of models at under $500 a pair has dramatically increased, and the Axiom 1,5 is an example of minimizing both cost and compromise.

A 2-way system in a somewhat tall, narrow box, the Ax 1,5 is a very listenable reproducer. Response is +4/-2 dB from just over 500 - 16,000 Hz. Without the 7 dB bump at 400 Hz, response would be within these limits right down to 50 Hz, which is very respectable performance.

Top end response is elevated in a fashion similar to the AR but doesn't sound quite as etched. There are two reason for this seeming anomaly; first, though we reference our measurement to 1 kHz, this frequency is actually in a trough, so much of the midrange is balanced in level with the top  of peak, another dip being seen in the first overtone frequency range between 5 to 10 kHz. These characteristics, combined with the boost at 400 kHz, make for a quite natural balance, marred only by some midrange coloration.

In music test this manifested itself in the voice test as a mildly muffed quality and some edginess in female voice a result of the 4 kHz peak.

The surprise, however, in this speaker was the bass extension, down only 6 dB at 40 Hz and about 12 dB at 32 Hz. Measurements of exact cut-off points in bass response are always hard to make, especially in small speakers, because woofer harmonic distortion (or doubling) is high, and tends to be hard to separate from the fundamental. But there was appreciable pure bass below 40 Hz, so judicious placement, as well as reasonable levels, will provide excellent bass response from the 1,5. they should be mounted on stands about 20" high, but will not become boomy from corner placement because of the smooth bass curve.

 

Specifications

Frequency Response:  45 - 22 kHz +2 dB

Sensitivity:  89 dB

Impedance:  6  minimum

Recommended Min./Max. Amp. Power:  15 watts /100 watts

Dimensions (W x H x D):  495 x 212 x 193 mm (19,5" x 8,38" x 7,62")

Revox C115 cassette tape deck

Cassette Tape Deck - Professional Series

System

Tape transport

Dual capstan transport, 3-head system

Auto tape type

Automatic setting for IEC type I, II, IV

HX-Pro

Permanently active headroom extension to increase the overall dynamic range

 

Ease of use - minimum of training and familiarization required

Balanced arrangement of operating and control elements

Large display with high contrast lettering

Feedback for each key depression on the high contrast display and LED's

Fader start mode interlocks the keyboard

Ergonomic design - characterized by the attractive, classic and discreet design, even professionals under stress will feel comfortable with the Revox C115 Cassette Tape Deck

Large and clearly separated controls for all functions

Functional clarity minimizes operating errors

The power switch, often dreaded by professionals, has been arranged on the rear panel

Useful features and optionas - help to customize the unit and supply the professinal with a reliable tool

Different studio levels externally switchable

De-energized capstan motor in standby

Bias and calibration easily adjustable on front panel

Standardized interfaces for audio and fader control

Simple and quick access to moduls minimizes service time

Rackmount kit optional

 


Specifications

Transport:  Dual capstan tape transport with controlled spooling drive. Separate head system for record and playback; ferrite erase head

Tape Speed:  1-7/8 ips ±0,5%

Tape Slip:  <0,3%

Wow and Flutter (weight as per JIS):  <0,1% (C-60 and C-90 in playback mode)

Spooling Time:  approx. 95 sec for C-60 cassette

Tape Timer:  switchable between, min/sec , linear counter, 4 digits

Automatic Tape Type Changover:  for typ[es I, II and IV

Recording System:  HX-Pro Headroom Extension

Calibration Aid:  Rotary controls for Bias and Level via bargraph display

Noise Reduction System:  Dolby B and C type, Double Dolby System for source/tape monitoring

Reproduce Equalization:

Type I :  3180 +120 µs

Type II :  3180 + 70 µs

Type IV :  3180 + 70 µs

Frequency Response (via Tape, -20 dB Dolby NR =Off)

Type I :  30 Hz - 18 kHz ±3 dB

Type II :  30 Hz - 17 kHz ±3 dB

Type IV :  30 Hz - 17 kHz ±3 dB

Level Calibration:  200 nWb/m =0 dB = Dolby-level

Harmonic Distortion (k3 of 333 Hz at 200 nWb/m)

Type I :  <1,0%

Type II :  <1,5%

Type IV :  <1,5%

Signal-to-Noise Ratio (ref.to 3% distortion and Dolby C)

Type I :  >72 dB

Type II :  >72 dB

Type IV :  >73 dB

Channel Separation:  better than -40 dB at 1 kHz

Bias/Erase Frequency:  105 kHz

Erase Efficiency:  >65 dB at 1 kHz (Dolby C =on)

Input Sensitivity/Impedance:  70 mV for 200 nWb/m / >10 k

Max. Input Level:  10 V

Outputs (rel. To 200 nWb/m)

Line Out :  -10/0/+6 dBm, R=50

Phones :  max. 500 mV, R=100

4special Function:  Faderstart, to be activated via 6-pole socket (DIN 45 322)

Power Requirements:  115 V, 90 - 130 V, (230 V, 190 - 260 V) 50/60 Hz

Power Consumption:  30 W

Dimensions (W x H x D):  440 x 143 x 366 mm

Weigth:  7,5 kg

Technics SL-D303 turntable

The Slimline Look Comes to Technics Direct Drive Turntables

Soft-Touch Electronic Front Controls

All the controls for the SL-D303 are lockated on the front panel for simplicity and convenience. Cueing, start, stop, speed, repeat, pitch control and on/off functions can be operated with the dustcover closed. Thus, no harmful particles can reach the surface of your records while you operate the turntable. Note that cueing is of the slide-bar type and the pitch control is styled in a rotational fashion. And the soft-control buttons are designed to require a moderate amount of pressure from your fingertips for activation.

 

High Performance Flat Direct Drive Motor

Like all technics direct drive turntables, the Sl-D303 have platters which are part of the direct drive motor itself. They are fashioned with a superior rumble rate of -78 dB (DIN-B) and minimal wow and flutter of 0,025% WRMS

 


TNRC - Helps Quiet Vibration and feedback

Vibration and feedback can be a problem with some turntable designs, but not with the SL-D303. technics has engineered them to be extremely stable against external vibrations and, at the same time, exhibit fine acoustical characteristics. With precision molded "TNRC" (Technics non-resonant compound), feedback is one of the last things you'll need to worry about even while listening at high volume levels. TNRC is actually an anti-resonant material developed by Technics to keep vibration and feedback to a minimum. There are upper and lower sections of TNRC which are strategically employed in the base construction of both turntables.

 

Gimbal Suspension

SL-D303 turntable is equipped with a four-point gimbal suspension system that's ideally designed for tonearm support. Precision engineering and for pivot-ball bearings lead to a minimal friction reading of 0,007 gram for both horizontal and vertical movement.

The support arms themselves are crafted of strong aluminum to assure rigidity and keep vibration to a minimum.

What's more, low friction plus the low mass of the tonearm itself make the SL-D303 compatible with most of the finest cartridges available today.

 

Sleek Tonearm Design

Along with their slimline styling, Technics has redesigned the tonearm assembly of the SL-D303. the arm itself has been lowered so it is closer to the chassis of the turntable. This is not found in most conventional turntables. Engineered with a single-molded headshell, the tonearm has a total mass of just 11 grams to ensure excellent sensitivity and low friction.

 


Full Automatic Tonearm and Disc Size Selector

A turntable should help prserve your expensive record collection. And one of the ways to ensure this is through automation. Technics SL-D303 does just that. With the disc size selector, all yo have to do is put on a record and press the start button. The turntable itself decides whether it is an Ep or LP and guides the tonearm to the correct lead-in groove.

Technics achieved such sophisticated automation through a fine synchronization between the tonearm control and a mechanical sensor built into the platter. It precisely notes the size of the record to be played and signals the tonearm accordingly. Thus, the tonearm moves to the correct position. And, even if you inadvertantly press the start button, the tonearm will not move unless the sensor detects the presence of a record. What's more, if there is no record on the platter, the tonearm will not leave the armrest, thus avoiding damage to the stylus itself. So, even if you make a mistake the SL-D303 doesn't.

 

Pitch Control with Illuminated Stroboscope

In the event you wish to slightly alter the speed of the turntable platter, Technics has included a front panel pitch control. This is especially useful if you want your music to match the pitch of an accompanying instrument. And, the illuminated stroboscope is provided to aid you in adjusting the SL-D303 with accuracy. You'll be certain that the platter speed is rotating at exactly 33-⅓ or 45 rpm when the markings on the rim of the platter appear to stand still to the eye.

 


Specifications

Turntable Section

Type:  Direct-drive fully automatic turntable

Motor:  Ultra-low-speed brushless DC motor

Turntable Speeds:  33-⅓ and 45 rpm

Turntable Platter:  Aluminum diecast

Platter Diameter:  312 mm (12-9/32")

Speed Change Method:  Electronic change

Variable Pitch Control:  10% adjustment range

Wow and Flutter (IEC 98 A weighted):  0,012 WRMS; (0,025% WRMS JIS C5521) ±0,035% peak

Rumble (IEC 98 A Weighted)

DIN B :  -78 dB

DiN A :  -56 dB

Tonearm Section

Type:  Universal S-shaped tubular arm, static-balanced type, direct-reading tracking force adjustment, with anti-skating force control device, oil damped cueing device

Effective Length:  230 mm (9-1/16")

Overhang:  15 mm (19/32")

Friction:  7 mg (horizontally and vertically)

Effective Mass:  11 g (including only headshell)

Tracking Error Angle:

+0°32' at the inner groove of record

+2°32' at the outer groove of record

Offset Angle:  22°

Adjustable Tracking Force:  0 - 2,5 g (direct- reading)

Cartridge Range:  5 - 7,5 g

Headshell Weight:  7,5 g

General

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

Power Consumption:  6 W

Dimensions (W x H x D):  430 x 105 x 375 mm (16-15/16" x x4-3/16" x 14-3/4")

Weight:  6 kg (13,2 lb)

Technics SL-D202 turntable

 

Slimline Direct Drive Turntable

When you select a turntable, you're forging an important link in your stereo system. It is a bridge between the one dimensional,vinyl world of your records and the acoustic realm of listening pleasure. That's why Technics has taken great care in engineering the SL-D202 turntables. Designed with the slim, sleek look of today, both the SL-D202, combine direct drive technology with the superior craftsmanship that has become a Technics turntable tradition. These one of remarkably dependable turntables have many features in common. For example, there's the integral-rotor platter direct drive motor for smooth, silent rotation, and the gimbal suspension tonearm. And the SL-D202 have tachnics non-resonant compound (TNRC) base construction which stifles vibration. What's more, there are electronic soft-touch controls on the front panel. All this adds up to two turntables with built-in reliability.

 

Semi-Automatic Tonearm

If you don't need the convenience an automatic turntable has to offer, Technics has created this semi-automatic turntable, you manually place the tonearm and stylus at the lead-in groove of the record. However, the tonearm automatically returns to the armrest when the side of a record is completed.

 

Additional features:

Pitch Control with illuminated Stroboscope

Aluminum diecast support portions for gimbal suspension

Precise tracking force adjustment with fine adjustments in increments of 0,1 gram, and antiskating control

Single-molded, aluminum diecast headshell.

Headshell stand

 


Specifications

Turntable Section

Type:  Direct-drive semi- automatic turntable, Auto-return, Auto stop

Motor:  Ultra-low-speed brushless DC motor

Drive Control Method:  FG servo control

Turntable Speeds:  33-⅓ and 45 rpm

Turntable Platter:  Aluminum diecast

Platter Diameter:  312 mm (12-9/32")

Speed Change Method:  Electronic change

Variable Pitch Control:  10% adjustment range

Wow and Flutter (IEC 98 A weighted):  0,012 WRMS; (0,025% WRMS JIS C5521) ±0,035% peak

Rumble (IEC 98)

Weighted :  -78 dB

Unweighted :  -56 dB

Tonearm Section

Type:  Universal tonearm S-shaped tubular arm Static balanced type

Effective Length:  230 mm (9-1/16")

Overhang:  15 mm (19/32")

Friction:  less than 7 mg (horizontally and vertically)

Effective Mass:  11 g (including only headshell)

Tracking Error Angle:

+0°32' at the inner groove of record

+2°32' at the outer groove of record

Offset Angle:  22°

Adjustable Tracking Force:  0 - 2,5 g (direct- reading)

Cartridge Range:  5 - 7,5 g

Headshell Weight:  7,5 g

Cartridge Section

Type:  Moving magnet

Frequency Response:  10 Hz - 35 kHz (20 Hz - 10 kHz ±1 dB)

Output Voltage:  2,5 mV at 1 kHz

Channel Separation:  22 dB at 1 kHz

Channel balance:  within 1,8 dB at 1 kHz

Compliance (dynamic):  10 x 10¯⁶ cm/dyne at 100 Hz

Stylus pressure:  1,75 ±0,25 g (17,5 ±2,5 mN)

Load Impedance:  47 k   to 100 k

Weight:  5 g

General

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

Power Consumption:  7 W

Dimensions (W x H x D):  430 x 106 x 375 mm (16-15/16" x x4-7/32" x 14-3/4")

Weight:  6 kg (13,2 lb)

Yamaha R-700 receiver

Natural Sound AM/FM Stereo Receiver

Combining technology  and musical sensitivity

The R-700 is a direct development of Yamaha's unique design philosophy - an approach that aims first and foremost at achieving the very highest in music reproduction accuracy. In addition to electronic measurements, extensive subjective and comparative listening tests by teams of music specialist monitor overall progress toward our design goals as well as indicate which areas need to be focussed on in order to maximize audible improvement in performance. These uncompromising efforts have resulted in a number of significant design innovations, as well as many subtle refinements which are continually improving the reproduction quality of Yamaha audio products.

Every detail and feature that can possibly affect sound quality - even to the slightest degree - is given thorough consideration and testing to ensure that its incorporation in the product will result in a positive benefit in terms of sound quality. The exciting new Yamaha spatial expander control offered on the R-700, for example, lets you "spread" the stereo sound field beyond the limits imposed by speaker location to more accurately recreate the image of a live performance.

In short, our approach combines both scientific method and musical sensitivity, allowing us to apply our technology to those areas of each product where it will do the most good; where you con hear it.

Super-Stereo Spatial Expander

Advanced Yamaha technology overcomes the last barrier to true high-fidelity reproduction. The Spatial Expander puts "ambience" back in the reproduced sound - the one element that conventional stereo cannot provide. With normal stereo reproduction, the apparent locations of the various music instruments are limited to the space between the left and right stereo speakers. Many so-called "ambience enhancement" systems attempt to overcome this by adding an extra pair of speakers - naturally requiring an extra amplifier plus the separate ambience unit - thereby considerably increasing system cost and inconvenience. The Yamaha Spatial Expander control, however, offers continously variable expansion of the stereo sound image, putting a more realistic distance between the musicians and creating an incredibly "live" sound without the need for any extra speakers or amplification.

DC Configuration Power Amplifier Section

Like the rest of the R-700, its power amplifier section is specifically designed to amplify and transmit the music waveform to your speakers without adding distortion. In fact, the R-700's excellent 0,015% distortion figure is maintained even at full 50 watts per channel power output. This has been accomplished by using a direct-coupled power amplifier design that eliminates capacitors in the signal path so distortion caused by phase shift of the music signal is minimized. The result is that you hear the music - not the amplifier - exactly the way it was originally recorded.

Other features

Continuously Variable Loudness Control

Record any source while listening to any other

Subsonic and High filters

lowNoise Phono Equalizer

 

The Tuner a better design for better sound

Station Locked Synthesizer Tuning System Quartz PLL

Synthesizer tuners actually have built-in noise, distortion and interference. Their internal quartz oscillator and frequency dividers, although accurate, are generating radio frequency signals within the tuner itself so some interference due to leakage of these signals is virtually unavoidable.

Station Locked Syntesizer Tuning Systems ICs

The R-700 tuner section, on the other hand, uses Yamaha's unique StationLocked tuning system which,in addition to being extremely accurate because it locks the tuner's frequency directly onto that of the broadcast station, produces no interference causing RF noise. You get pinpoint tuning accuracy plus pure, distortion-free reception - precisely what a first-class tuner should provide.

Ultra-Linear Direct FM Detector

Another impressive Yamaha technological feature incorporated in the R-700 tuner section is the ultra-linear direct FM detector circuit. It features greatly improved linearity even when compared to the recent pulse-count detector designs, and a greatly simplified signal path ensures that no noise or distortion is added to the music signal. The is just one of the innovations incorporated in the R-700 tuner section that help to raise FM reception to the level where if can justifiably be called "high fidelity".

DC NFB PLL Multiplex Demodulator

The purpose of the multiplex demodulator is to separate the left and right chanels of the composite stereo signal. Most high-performance tuners nowadays use a method which involves turning the composite signal on and off at a 38 kHz rate. Because the switches used for this are in the signal path, however, switching distortion can be a problem. The multiplex demodulator of the R-700 solves this by incorporating high-speed switches into the NFB loop of a high-slew-rate DC amp., thereby throughly absorbing any trace of switching distortion. Overall, this circuit provides excellent stereo separation, low harmonic and intermodulation distortion, and superior transient response for the most natural FM stereo reproduction.

Other Tuner Features:

Sophisticated tuning convenience, like pushbutton search tuning, and 5 FM/5 AM station preset tuning.

Optimum reception in any conditions, with automatic DX/Local switching, Auto Blend, and signal quality meter.

 


Specifications

Audio Section

Minimum RMS Output Power per Channel:

50 W (17 dBW) , 8 , 20 - 20,000 Hz , 0,015% T.H.D.

55 W (17,4 dBW), 8 , 1 kHz, 0,01% T.H.D.

Dynamic Headroom (8 ):  2,5 dB

Total Harmonic Distortion (30 - 20,000 Hz)

Phono MM to Rec Out (3 V output) :  0,005%

Aux?Tape to SP Out (8 , 1 W):  0,005%

Intermodulation DIstortion Ratio

Aux/Tape to SP Out (8 , 25 W):  0,01%

Power Bandwidth (8 , 25 W, 0,02% T.H.D.) :  5 to 40,000 Hz

Damping Factor (8 , 1 kHz):  better than 40

Frequency Response (Aux/Tape to SP Out, 8 ):  5 - 1000,000 Hz -1 dB

RIAA Deviation Phono MM :  ±0,5 dv

Input Sensitivity/Impedance:

Phono MM :  2,5 mV/47 k  , 220 pF

Aux/Tape :  120 mV/47 k

Input Sensitivity (New IHF)

Phono MM :  0,35 mV

Aux/Tape :  17 mV

Max. Input Level (0,01% T.H.D.)

Phono MM (20 - 20,000 Hz ) :  200 mV

Phono MM (1 kHz) :  250 mV

Output Level/Impedance:

Rec Out :  120 mV/470

Headphone Output :  259 mW (0,015% T.H.D.)

Signal-to-Noise Ratio (IHF A network)

Phono MM (5 mV, input Shorted) :  85 dB

Aux/Tape (input Shorted) :  100 dB

Signal-to-Noise Ratio (new IHF)

Phono MM :  74 dB

Aux/Tape :  85 dB

Residual Noise (IHF  A Network) :  115 µV

Channel Separation (1 kHz, Vol -30 dB, 5.1 k )

Aux/Tape to Other Channel :  -53 dB

Phono MM to Other Channel :  -53 dB

Tone Control Characteristics

Bass (boost/cut) :  ±10 dB at 50 Hz

Treble (boost/cut) :  ±10 dB at 20 kHz

Turnover Frequencies

Bass :  350 Hz

Treble :  3,500 Hz

Filter Characteristics

Low (Subsonic, EQ Built-in):  15 Hz, -12 dB/oct

High :  8 kHz, -6 dB/oct

Continuous Loudness Control (Level-Related Equalization)

Max. Attenuation:  -20 dB at 1 kHz

Rec Output Level/Impedance (Fixed)

FM (100% mod. 1 kHz) :  500 mV/4,7 k

AM (30% mod. 1 kHz) :  150 mV/4,7 k

Tuner FM Section

Tuning Range:  87,6 to 108 MHz

50 dB Quieting Sensitivity

Mono (DX) :  3,2 µV (15,3 dBf)

Stereo (DX, Auto Blend) ;  25 µV (33,3 dBf)

Usable Sensitivity IHF Mono (1 kHz, 100% mod.)

300  :  2,5 µV (13,2 dBf)

75  :  1,25 µV (13,2 dBf)

Image Response Ratio (98 MHz):  62 dB

IF Response Ratio (98 MHz):  100 dB

Spurious Response Ratio (98 MHz):  100 dB

AM Suppresion Ratio (IHF):  65 dB

Capture Ratio:(IHF):  Local 1,5 dB; DX 2,2 dB

Alternate Channel Selectivity (IHF):  Local 30 dB; DX 82 dB

Selectivity (Two Signals):  DX 68 dB

Signal-to-Noise Ratio

Mono :  84 dB

Stereo :  80 dB

Distortion Mono

100 Hz :  Local 0,06%; DX 0,1%

1 kHz :  Local 0,06%; DX 0,3%

6 kh :  Local 0,08% DX 0,7%

Distortion Stereo

100 Hz :  Local 0,07%; DX 0,1%

1 kHz :  Local 0,07%; DX 0,5%

6 kh :  Local 0,09% DX 0,8%

Intermodulation DIstortion (IHF)

Mono :  Local 0,07%; DX 0,5%

Stereo :  Local 0,08%; DX 1%

Stereo Separation (Local)

50 Hz :  44 dB

1 kHz :  50 dB

10 kHz :  45 dB

Frequency Response

50 Hz to 10 kHz ±0,3 dB

30 Hz to 15 kHz ±0,5 dB

Subcarrier Product Ratio:  50 dB

Muting Threshold (DX):  5 µV (19,2 dBf)

Auto-DX Threshold:  30 µV (34,8 dBf)

Tuner AM Section

Tuning Range:  525 to 1,605 kHz

Usable Sensitivity (loop antenna):  200 µV

Selectivity:  30 dB

Signal-to-Noise Ratio:  50 dB

Image response Ratio:  40 dB

Spurious response ratio:  50 dB

Distortion (1 kHz):  0,3%

General

Semiconductors:  42 Transistors; 20 ICs; 3 FETs; 31 Diodes; 14 LEDs

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

Power Consumption:  120 W

Dimensions (W x H x D):  480 x 122 x 337 mm (18-7/8" x 4-3/4" x 13-1/4")

Weigth:  9  kg (19 lbs 13 oz)