Kenwood TK-140X receiver

IC-FET-Solid State AM/FM Stereo Receiver

A delectable treat for the sagacious sound connoisseur; the ineffable TK-140X

Kenwood's superior sensitivity and astonishing selectivity starts with 3 FET's 4-gang tuning condenser, 4 ICs IF circuit super sensitive front-end. Sensitivity of the TK-140X is a remarkable 1,7 microvolt - but even more important is Kenwood's selectivity, especially in major metropolitan areas. Where there are two FM stations on the same frequency, a mere 1 dB difference is all that is necessary for the TK-140X to capture one station and utterly reject the other.

The abundant power  - 200 watts - of the TK-140X permits you to drive the least efficient speaker systems with ample power to spare, (in fact, the Kenwood TK-140X gives you two sets of stereo speaker outputs, plus stereo headphone jack.)

But most important is the way the TK-140X reproduces music. Every delicate little tone, every subtle note, every nuance of the original sound is clean, pure, crisp and transparent.

 

New Luminous-Dial

The dial of the Kenwood TK-140X is new. Even the large tuning meter with stereo indicator is new. When the set is on, the dial illuminates in a beautiful blue hue, with every FM and AM frequency clearly visible. Turn the set off, and all the numbers disappear leaving an elegant opaque decorator panel.

200 Watts Undistorted Music Power

Kenwood invites comparison of the TK-140X's power amplifier output characteristics against those of any other stereo tuner-amplifier. The figures should speak for themselves in the TK-140X's favor. It delivers 200 watts in music power at 4 Ω ; 170 watts at 8 Ω , IHF standard. Also in terms of continuous power: 80watts/80 watts at 4 ohms; 60 watts/60 watts at 8 ohms. Distortion factor at rated output; less than 0,5%. Power bandwidth: 15 Hz to 30,000 Hz. These superior specifications are the result of special complementary Darlington circuits and heavy duty silicon transistors, both in its driver and power amplifiers. These silicon transistors also assure long lasting, excellent performance.

FET, Supersensitive Front End

The TK-140X boasts an FM Front End that also vies comparison with the most expensive FM Tuners. Take the 3 FET used in two stages of RF amplification, and the Mixer. Also the 4-gang variable capacitor, and stable oscilator, (Frequency drift within 0,015% over temperature variations between -10 to 50 Centigrade). They all add up to a super-sensitive, distortion-free FM front end with selectivity characteristics that are hard to beat. Sensitivity (IHF): 1,7 µV. Image Rejection, Cross Modulation, IF Rejection; all better than 100 dB. Alternate Channel Selectivity: 45 dB. T.H.D. less than 0,5% at 400 Hz, 100% modulated signal.

The TK-140X has an FM antenna coupling transformer which provides perfect matching at its 75 Ω. Input for single wire or coaxial cable antenna leading, or at its 300 Ω . Input for parallel feeder lines. This eliminates any possibility of line-to-tuner coupling losses due to impedance mismatch.

New Integrated Circuits

Use of new , high-gain Integrated Circuits (IC) in all 4 IF Amplifiers has permitted the TK-140X's Limiter Circuit to react to extremely minute input voltages. This has LED to the exceptional Signal-to-Noise Ratio of better than 65 dB and an FM Capture Ratio of 1,0 dB. This means that where there are two FM stations on the same frequency, a mere 1 dB difference is all that's necessary to capture one station and utterly reject the other.

 

Specifications

Amplifier Section

Total Music Power (IHF):  200 watts at 4 Ω ; 170 watts at 8 Ω

Continuous Power (IHF)

Each Channel Driven :  80/80 watts at 4 Ω ; 60/60 watts at 8 Ω

Both Channel Driven :  53/53 watts at 8 Ω

Total Harmonic Distortion :  less than 0,5% at rated output

Intermodulation Distortion : less than 0,5% at rated output (less than 0,2% at -3 dB rated output)

Frequency Response:

Main Input :  8 Hz to 120,000 Hz ±1,5 dB

Aux Input :  20 Hz to 30,000 Hz ±1,5 dB

Power bandwidth (IHF):  15 Hz to 30,000 Hz

Channel Separation:  better than 50 dB

Input Sensitivity (for rated output)

MAG :  2,0 mV

Tape HD :  2,2 mV

Aux :  160 mV

Tape Play (Pin) :  160 mV

Tape Play (DIN) :  160 mV

Main :  100 mV

Recording Output:  160 mV (Pin); 32 mV (DIN)

Maximum Input Signal (at mag Input):  180 mV (p-p 1,000 Hz)

Hum and Noise (below rated output):

Phono Mag :  65 dB

Tape HD :  63 dB

Aux :  75 dB

Tape Play :  75 dB

Noise at minimum volume control :  less than 1,5 mV at 8 Ω  or 0,28 micro watts (83 dB)

Damping Factor:  28 at 8 Ω  (Output impedance of speaker terminal is 0,286 Ω )

Speaker Impedance: 4, 8 and 16 ohms

Controls

Bass :  ±10 dB at 100 Hz

Treble ;  ±10 at 10,000 Hz

High Filter ;  3,000 Hz cut-off

Low Filter ;  200 Hz cut-off

Loudness Control:  +6 dB at 100 Hz, +2 dB at 10 kHz ( at -30 dB)

Output Switch:  Power off, A speaker, B speaker, A+B speakers and Phones

Mode Switch:  left, Right, Stereo, Rev., Mono

Selector Switch:  AM, FM Auto, Phono, Tape HD & Aux

Keyboard Type Switch:  Loudness, tape Monitor, Muting, Low Filter and High Filter

Outputs:  2 pairs of stereo speaker terminals, Center channel output (low level), Pre-amp, output, Tape recording output, headphone jack , AC outlet

FM Tuner Section

Antenna Impedance:  300 Ω  balanced, 75 Ω  unbalanced

Sensitivity (IHF): 1,7 µV

Total Harmonic Distortion:  less than 0,5% 400 Hz 100% mod.

Signal-to-Noise Ratio:  better than 65 dB

Capture Ratio:  1,0 dB

Image Rejection:  better than 100 dB

Cross Modulation Ratio:  better than 100 dB

IF Rejection:  better than 100 dB

Selectivity (Alt. Channel):  45 dB

Stereo Separation:  better than 35 dB at 1,000 Hz

FM IF Stage:  4 ICs

FM Front End:  3 FETs 4-gang tuning condenser

Inter-Station Muting:  keyboard switch

FM Spurious Radiation:  less than  34 dB (50 µV)

AM Tuner Section

Sensitivity (IHF):  15 µV at 1,000 kHz

Image Rejection:  90 dB at 1,000 Hz

Selectivity:  better than 25 dB

Semiconductors:  4 ICs; 3 FETs; 52 Transistors; 35 Diodes; 5 Thermister

Power Requirements:  100 - 120 V, 220 - 240 V 50/60 Hz

Power Consumption:  250 watts at full power 34 watts at no signal

Dimensions (W x H x D):  16-1/2" x 5-1/2" x 12-1/4"

Weight:  28,5 lbs (net)

 

Kenwood KR-6170 receiver

Jumbo Stereo Receiver KR-6170

High fidelity, to most people, still means authentic reproduction of broadcast or pre-recorded sound. A sophisticated electronic device for increasing one's listening pleasure. Advent of Kenwood's epoch-making KR-6170 Jumbo Stereo Receiver, however, has completely changed this concept. Stereo today is for playing as well as for listening. A completely new field of stereo enjoyment. Play or practice your favourite musical instrument to the accompaniment of Electronic Rhythm Composer which produces 12 different rhythms. Five electronic percussions are also at your beck and call. It can make your party. But that's not why it's a Jumbo

KR-6170 is also equipped with Reverberation Unit; Echo-Sound Output terminals for 4-channel reproduction; 4-sets of speaker terminals (A, B, C, D and any combination0; 2-Hour Timer for automatic shut-off; 2 jacks for both Guitar and Microphone (with Mike-Mixing Volume Control); 2 pairs of tape Monitor circuits; Foot-Start Switch for Rhythm Composer and Dynamic Mike; etc.

All this housed in a single Jumbo unit with a power output of 180 watts. This is the New Stereo, geared to listening and playing pleasure.

 

Reverberation Unit

The KR-6170 features exclusive Reverberation Unit offering echo effect. Thanks to the strictly selected materials for spring and damper. It has no unnaturalness. The reverberating time can be controlled up to maximum 2 seconds by the Level Adjustor.

The another extraordinary feature is Reverberation Mode Switch which enables selecting input sources to be reverberated. At "source" position the reverberation is added to all the sources. Guitar, Microphone and Rhythm can be independently reverberated. The listening and playing pleasure is greatly enhanced.

 

Electronic Rhythm Composer

12 different rhythm varieties can be produced by 5 electronically composed percussions. KR-6170 has clearly changed the concept of a receiver with adding the enjoyment of "play along" besides that of listening. The built-in features are:

Tempo Control - offering tempo variety slow to quick

Rhythm Mode Switch - reproducing mode of a rhythm is selectable according to the situation

Rhythm Tone Control - booth of high and low tone volume can be independently increased or decreased in order to obtain the most suitable rhythm balance

Rhythm Selector - by the pushbuttons 12 rhythms are selectable

Foot Switch - as an accessorised part the foot remote pedal is attached for easy use while the hands are occupied.

 

Specifications

Continuous Power Output:

50/50 watts each channels at 4 Ω 

40/40 watts each channels at 8 Ω

Total Harmonic Distortion :  0,5% (at rated); 0,1% (at -3 dB rated)

Intermodulation Distortion:   0,5% (at rated); 0,2% (at -3 dB rated) 

Frequency Response:

High Level (Aux) Input :  20 - 40,000 Hz ±1,5 dB

Power bandwidth (IHF):  17 - 30,000 Hz

Input Sensitivity/Impedance (for Rated Output)

Phono 1, 2 :  2,5 mV/50 k Ω

Mic :  2,0 mV/10 kohm

Guitar :  15 mV/30 k Ω

Aux 1, 2 :  150 mV/100 k Ω

Tape Play A, B :  150 mV/100 k Ω

Main Input :  100 mV

Hum and Noise

Phono 1, 2 :  65 dB

Mic :  58 dB

Aux, Tape Play :  75 dB

Damping Factor ( at 8 Ω ):  50

Speaker Impedance: 4 - 16 Ω

Multi Presence Control:  Selector-Defeat/Loudness (at 100 Hz ; +10 dB, at 10,000 Hz ; +5 dB)/Tone/Jazz/Vocal/Mood

Bass Control:  ±10 dB at 100 Hz

Treble Control:  ±10 dB at 10,000 Hz

Electronic Rhythm Composer Section

Rhythm Selector: 1 - March; 2 - Fox Trot; 3 - Rock; 4 - R & B; 5 - Ballad; 6 - Shuffle; 7 - Boss nova 1; 8 - Boss nova 2; 9 - Latin Beat; 10 - Mambo; 11 - Waltz; 12 - jazz Waltz

Electronic Percussions:  5 different Sounds

Rhythm Mode Switch:  Left, Right; stereo, Reverse, Mono

Start Switch:  Off, Start

Tempo Control:  Slow to Quick

Rhythm Tone:  Low-bass Drum Level; high High Hat, Claves Level

Reveberation Section

Level Control:  0 to 2 seconds

Mode:  Off-source-Guitar-Mic-Rhythm

Timer Section:  2 hours

General

AC Outlets:  Switched x 1 ; Unswitched x 2

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

Power Consumption:  at full power 240 watts, at no signal 45 watts

Dimensions (W x H x D):  552 x 171 x 425 mm (21-3/4" x 6-3/4" x 16-1/4")

Weight:  16 kg (35,2 lbs)

 

Kenwood KX-1030 cassette deck

Most advanced technology of cassette deck design

The KX-1030 achieves electrical and performance characteristics equal to , or better than those of any cassette deck available today at any price. The extraordinary performance of this cassette deck is a direct result of the many years of research and development of dedicated Kenwood engineers, and their desire to achieve a level of performance that goes far beyond the state-of-the-art..

Consider just one performance feature of the KX-1030. there exist a number of cassette decks which incorporate "three-head" design for the purpose of monitoring recordings directly from the tape as they are being made. The KX-1030 provides for such instant playback of recordings, but Kenwood engineers have incorporated independent record and playback heads for this purpose, thereby achieving a performance level not possible with dual-purpose combination record/playback heads. As a result, the KX-1030 provides extended frequency response, wider dynamic range and higher saturation levels - performance qualities that are indispensable for high quality tape reproduction.

 

Flat Drive Belt - the key to further improvement in woa and flutter

The drive system used to transfer rotational energy from the motor to the flywheel can be used to further reduce undesirable wow-and-flutter. A round cross-sectional type of belt, such as that used in most cassette decks, does not provide sufficient contact surface to be used in a precision cassette deck such as the KX-1030. in order to reduce slippage and vibration caused by the subtle, irregular motion that takes place between the flywheel and the drive belt, Kenwood engineers elected to use a flat belt having a width of 5 millimeters. This belt not only reduces slippage because of its large contact surface, but also absorbs vibration caused by the irregular motion inherent in the remainder of the drive system.

Unlike flywheels with V-grooves gouged into their surfaces, the flat, polished surface of the flywheel used in the KX-1030 provides exact concentricity required for precise rotation. Such accurate roundness is difficult if not impossible to achieve with conventional V-grooved flywheels.

 

Vertical Tape Trasport using Independent Belt Drive System

In most cassette decks employing a single-motor drive, one belt is used to drive the tape as well as the take-up reel. In such systems, so long as there is no tape on the take-up reel side, the capstan drive system operates without interruption. However, as tape accumulates on the take-up side, irregularities or "bumps" in the action of the take-up reel may affect the operation of the capstan drive.

In order to reduce wow created by such vibration, Kenwood engineers decided to incorporate two separate belts; one solely for driving the capstan; the other for driving the take-up reel. As a result of this two-belt system, the KX-1030 provides low wow-and-flutter as well as accurate and stable rotation of the capstan, regardless of tape accumulation on the take-up reel of the cassette.

 

Capstan Roundness Accuracy

The capstan used in Kenwood's KX-1030 is machined to the critical roudness tolerance of 0,1 microns, thus reducing another important cause of wow-and-flutter. The capstan roundness chart , indicates clearly the degree of roundness achieved in Kenwood capstans.

Capstan accuracy must be maintained indefinitely, and not only when the cassette deck leaves the factory. In order to maintain this built-in accuracy, Kenwood engineers have incorporated a triangular capstan support system. This three-point support (as opposed to single or dual-support systems used by other manufacturers) can withstand shock from any direction without affecting the mechanical stability of the capstan system. Thus, long term reliability and low wow-and-flutter performance are assured through many years of continued use.

 

High Power, High Torque DC Servo Motor

While the use of a large flywheel in a cassette deck's transport system contributes significantly to stable and accurate rotation of that drive system, driving such a heavy flywheel requires a motor with high rotational torque. Kenwood engineers have incorporated a motor with a rotational torque of 50 gram centimeters in the KX-1030 - compared with approximately 20 gram centimeters of torque provided by the motors used in many other cassette decks. Another important feature of this well designed DC servo motor is that a sudden increase in load (often encountered in cassette drive systems when less-than-perfect cassette tape housing are used) has a negligible effect upon the stability of the tape drive system.

 

Specifications

Type:  Front Loading Stereo Cassette Deck with Dolny System

Track:  4-track 2-channel Stereo/Mono Recording/Playback

Recording System:  AC Bias System (Bias Frequency: 85 kHz)

Erasing System:  Ac System

Tape Speeds:  4,76 cm/sec (1-7/8 ips)

Heads:  Three Ferrite Heads

Recording and Playback Dual Combination Head x 1

Erasing Head x 1

Motor:  Electronically Controlled DC Motor

Fast Winding Time:  Approx. 80 sec. C-60 tape

Frequency Response

Normal Tape :  25 Hz to 17,000 Hz (35 Hz - 15,000 Hz ±3 dB)

CrO₂ Tape :  25 Hz to 20,000 Hz (35 Hz - 18,000 Hz ±3 dB)

Ferri-CrO₂ Tape :  25 Hz to 19,000 Hz (35 Hz - 17,000 Hz ±3 dB)

Signal-to-Noise Ratio

Dolby On (over 5 kHz):  65 dB (Normal Tape ):  67 dB (CrO₂ tape)

Dolby Off :  55 dB (Normal tape); 57 dB (CrO₂ tape)

Total Harmonic Distortion:  less than 1,3% (at 1 kHz, 0VU with Normal tape)

Wow and Flutter:  0,06% (WRMS)

Input Sensitivity/Impedance

Line x 2 :  77,5 mV/56 k Ω  ( or 0,1 mV/1,0 k Ω  )

DIN x 1 :  10,9 mV/1,5 k Ω

Microphones x 2 :  0,19 mV/10 k Ω

Output Level/Load Impedance

Line x 2 :  775 mV (0VU) / 2,0 k Ω

DIN x 1 :  775 mV (0VU) / 2,0 k Ω

Headphones x 1 :  48,9 mV / 8 Ω  - 16 Ω

Power Requirements:  AC 120 V 60 Hz (USA, Canada); AC 220 V , 50 Hz (Australia); AC 240 V, 50 Hz (UK )

Power Consumption:  13,0 watts

Dimensions (W x H x D):  430 x 167 x 332 mm (16-15/16"x 6-9/16"x13-1/16")

Weight:  7,5 kg (16,5 lbs)

 

Kenwood KR-9600 receiver

AM/FM Stereo Receiver

The KR-9600 Receiver puts independent power supplies behind each channel, so demanding musical passages in one channel won't cause distortion in the other. At 160 watts per channel minimum RMS power at 8 Ω , from 20 to 20,000 Hz, with no more than 0,08% Total Harmonic Distortion. The KR-9600 is the most powerful receiver we have ever made. What's more the KR-9600 is loaded with special features. A mid-range presence control, MIC mixing and source fading a deviation meter for source fading, a deviation meter for perfect off-air recording and 2 big power meters, to mention a few.

 

Kenwood's finest KR-9600 incredible power, advanced new circuitry and full complement of controls for unsurpassed performance. Features:

Dual power supplies end crosstalk distortion

Two selectable-range Power meters

Separate equalizer amplifiers for Phono 1 and Phono 2

FM front end couples a dual-gate MOS FET with 5-gang tuning capacitor for the theoretical limit in FM sensitivity (1,5 µV)

Low-distortion, 8-element linear phase IF filter

PLL in FM Multiplex for improved stereo separation

FM Dolby deemphasis switch

Dual function Signal/Deviation Meter

Microphone input for overdub on tape and Public Address

 wo tape deck capability with bi-directional dubbing and tape-through circuit

Triple tone controls with Defeat switch

Optional CB-15 walnut veneer cabinet available

 

Specifications

FM Tuner Section

Usable Sensitivity:  8,7 dBf (1,5 µV)

50 dB Quieting Sensitivity:

Mono :  14,1 dBf (2,8 µV)

Stereo :  36,1 dBf (35 µV)

Signal-to-Noise Ratio

Mono :  75 dB

Stereo :  70 dB

Total Harmonic Distortion

Mono :  0,15%

Stereo :  0,2%

Frequency Response:  20 Hz to 15,000 Hz +0 dB, -1,5 dB

Capture ratio:  1,3 dB

Alternate Channel Selectivity:  83 dB

Spurious Response Ratio:  115 dB

Image Response Ratio:  100 dB

IF Response Ratio (Balanced):  115 dB

AM Suppression Ratio:  60 dB

Stereo Separation:  45 dB at 1,000 Hz ; 35 dB from 50 Hz to 10,000 Hz

Subcarrier Product Ratio:  65 dB

Antenna Impedance

Balanced :  300 Ω

Unbalanced :  75 Ω

AM Tuner Section

Usable Sensitivity:  10 µV

Signal-to-Noise Ratio:  50 dB

Image Rejection:  70 dB

Selectivity (IHF):  35 dB

IF Rejection:  75 dB

Power Amplifier Section

Power Output (20 to 20,000 Hz with no more than 0,08% T.H.D.):

160 W per channel minimum RMS at 8 Ω 

200 W per channel minimum RMS at 4 Ω 

Dynamic Power Output:  750 W (at 4 Ω )

Total Harmonic Distortion

0,08% at rated power into 8 Ω

0,05% at 1 W power into 8 Ω

Intermodulation Distortion (60 Hz : 7 kHz = 4 : 1)

0,08% at rated power into 8 Ω

0,05% at 1 W power into 8 Ω

Power Bandwidth:  5 Hz to 50,000 Hz

Damping Factor:  55 at 8 Ω

Input Sensitivity/Impedance: 1 V/50 k Ω

Speaker Impedance:  4 Ω  to 16 Ω

Pre Amplifier Section

Input Sensitivity/Impedance

Phono 1 :  2,5 /50 k Ω

Phono 2 :  5,0 mV / 50 k Ω

Aux :  150 mV/50 k Ω

Tape :  150 mV/50 k Ω

Mic :  1,5 mV/50 k Ω

Signal-to-Noise Ratio

Phono 1 :  76 dB

Phono 2 :  80 dB

Aux :  95 dB

Tape :  95 dB

Mic :  65 dB

Maximum Input Level

Phono 1 :  500 mV (RMS) T.H.D. 0,08% at 1,000 Hz

Output Level/Impedance

Tape Rec Pin :  150 mV/100 Ω

Tape Rec DIN :  30 mV/80 k Ω

Pre Out :  1 V/5,3 k Ω

Frequency Response;

Phono 1 :  RIAA standard curve +0,2 dB, -0,2 dB

Aux , Tape :  20 Hz to 40,000 Hz +0 dB, -1 dB

Mic :  100 Hz to 8 ,000 Hz +0 dB, -3 dB

Controls

Bass :  ±10 dB at 100 Hz

Mid :  ±10 dB at 800 Hz

Treble :  ±8 dB at 10,000 Hz

Loudness Control (-30 dB): +3 dB at 100 Hz; +6 dB at 100 Hz

Low Filter :  -9 dB at 100 Hz

High Filter :  -9 dB at 10 kHz

General

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

Power Consumption:  820 W at full power

AC Outlet:  1 Switched, 2 Unswitched

Dimensions (W x H x D):  580 x 169 x 420 mm (22-27/32" x 6-21/32" x 16-17/32")

Weight Net:  24 kg (52,9 lbs)

 

Kenwood KR-8010 receiver

If you're enthusiastic about today's less efficient, super-accurate speaker systems, you know you need a very efficient, super-power receiver to drive them. And if your ears are good enough, you know the value of lots of power to handle critical musical passages with any speaker system.

That's why we created the new KR-8010. with 125 Watts per channel, minimum RMS both channels driven at 8 ohms, from 20 Hz to 20,000 Hz with no more than 0,03% Total Harmonic Distortion, you've got all the power you really need.

But more important, the KR-8010 gives you an extremely clean, low-distortion signal at the same time. For example, the Signal-to-Noise Ratio through the phono input is the best you'll find on any receiver (90 dB). Its overall frequency response is matched precisely to the RIAA curve ±0,2 dB. And the tuner delivers sensitivity and selectivity that you'll really appreciate in signal-crowded-cities.

To shape that signal into music, the KR-8010 offers a full range of front-panel control, usually found only in esoteric separates and recording studios. Like tape dubbing while listening to another source. And dual FM muting levels, Mic input and fade control. Bass, treble and midrange tone control. And more.

 

Features:

Direct-mounted power transistors permit greater heat sink efficiency for cool operation

Exceptionally low-noise phono equalizer with high overload level

4-pole dual-gate MOS FET's in RF stage and 6-element ceramic filters in IF stage for excellent sensitivity and selectivity

New PLL IC in FM Multiplex with Pilot Canceller Circuit

FM Dolby deemphasis switch and 2-level FM Muting switch

Microphone input for overdub on tape and Public Adress

2 tape deck capability with bi-directional dubbing and tape-through circuit

Triple tone controls with defeat switch

Optional CB-14K walnut veneer cabinet, B-14 walnut veneer side panels, or D-10 carrying handles available

 

Specifications

Power Output:  125 watts per channel (min. RMS both channels driven, at 8 Ω  from 20 to 20,000 Hz with no more than 0,03% Total Harmonic Distortion

Power Output

Both Channel Driven: 

130 + 130 W into 8 Ω  at 1 kHz

135 + 135 W into 4 Ω  at 1 kHz

Dynamic Power Output:  360 W into 4 Ω

Total Harmonic Distortion (20 to 20,000 kHz from Aux): 

0,03% at rated power into 8 Ω

0,02% at 1/2 rated power into 8 Ω

Intermodulation Distortion (60 Hz : 7 kHz = 4:1):  0,03% at rated power into 8 Ω

Power Bandwidth: 5 Hz to 70,000 Hz

Frequency Response:  5 Hz to 100,000 Hz -1 dB

Signal-to-Noise Ratio :  120 dB (short circuited)

Damping Factor:  35

Input Sensitivity /Impedance:  1 V/40 k Ω

Preamplifier Section

Input Sensitivity/Impedance

Phono 1, 2 :  84 dB for 2,5 mV input; 90 dB for 5,0 mV input

Aux , Tape :  105 dB for 150 mV input

Mic :  73 dB for 2,0 mV input

Maximum Input Level:  250 mV (RMS) T.H.D. 0,03% at 1 kHz

Frequency Response:

Phono :  RIAA standard curve ±0,2 dB

Aux, Tape :  10 Hz to 100,000 Hz - 1,0 dB

Tone Control

Bass :  ±12 dB at 50 Hz

Mid :  ±12 dB at 800 Hz

Treble :  ±12 at 15 kHz

Loudness Control (Vol -30 dB):  +10 dB at 100 Hz

Subsonic Filter:  18 Hz 6 dB/oct

Output Level/Impedance

Tape Rec (Pin) :  150 mV/300 Ω

Tape Rec (DIN) :  30 mV/80 k Ω

Pre Out :  1,9 V/1 k Ω

FM Tuner Section

Usable Sensitivity:  9,8 dBf (1,7 µV)

50 dB Quieting Sensitivity

Mono :  14,1 dBf (2,8 µV)

Stereo :  36,3 dBf (30 µV)

Signal-to-Noise Ratio at 65 dBf

Mono :  80 dB

Stereo :  72 dB

(75 dB at 10 mV)

Total Harmonic Distortion

Mono :  0,1%

Stereo :  0,15%

Frequency Response:  20 Hz to 15,000 Hz +0,2 -2.0 dB

30 Hz to 15,000 Hz +0,2 -0,5 dB

Capture Ratio:  1,0 dB

Image Rejection Ratio:  85 dB

Spurious Response ratio:  105 dB

IF Response ratio:  90 dB

Alternate Channel Selectivity:  85 dB

AM Suppression Ratio:  60 dB

Stereo Separation Ratio:  45 dB at 1,000 Hz (30 dB at 50 Hz - 15,000 Hz)

Subcarrier Product Ratio:  67 dB

Antenna Impedance:  300 Ω  balanced; 75 Ω  unbalanced

FM Frequency Range:   88 MHz to 108 MHz

AM Tuner Section

Usable Sensitivity:  10 µV (250 µV/m)

Signal-to-Noise Ratio:  50 dB

Image Rejection:  50 dB

Selectivity:  35 dB

General

AC Outlet:  1 Switched, 1 Unswitched

Power Consumption:  850 W at full power

Dimensions (W x H x D):  534 x 167 x 459 mm (21-⅓2" x 6-19/32" x 18-1/16")

Weight:  18,3 kg (40,3 lbs)

 

Kenwood KA-660D amplifier

Stereo Integrated Amplifier

Features:

Digital-ready power amplifier with excellent low-impedance drive capability

Dynamic Power Output (EIA) 2 x 165 W into 2 ohms

Ultra-short signal paths and circularised linear circuit layout to produce high-quality, high-definition sound especially for the UK market

Type monitor Source Direct position

Super Bass switch

Independent L/R channel volume control

MM/MC phono cartridge selector

Relay operated A/B speaker selectors with protection

Headphone Jack

 

 

Specifications

Power Output:  60 watts per channel minimum RMS, both channel driven at 8 Ω  from 20 - 20,000 Hz with no more than 0,08% Total Harmonic Distortion.

Maximum Continuous Power Output

DIN,  at 4 Ω  :  100 W + 100 W

IEC, at 8 Ω  :  70 W + 70 W

Total Harmonic Distortion : 

20 Hz - 20,000 Hz, 8 Ω  :  0,08%

1 kHz, 8 Ω  :  0,009%

Intermodulation Distortion:  0,03% at rated power (60 Hz : 7 kHz= 4 : 1)

Frequency Response:  10 Hz to 90 kHz +0 dB -3 dB (IHF)

Damping Factor:  250 (50 Hz input 8 Ω )

Signal-to-Noise Ratio (IHF-A)

Phono (MM) :  78 dB

Phono (MC) :  74 dB

Tape, Tuner, Aux, CD :  106 dB

Input Sensitivity/Impedance:

CD, Aux, Tuner, Tape :  150 mV / 47 k Ω

Phono (MM) :  2,5 mV/47 k Ω 

Phono (MC) :  0,2 mV/47 k Ω 

Tone Controls

Treble :  ±10 dB at 10 kHz

Bass :  ±10 dB at 100 Hz

General

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

Power Consumption:  250 W

Dimensions (W x H x D):  440 x 102 x 345 mm (17-5/16" x 4-1/16" x 13-9/16")

Weight:  8,8 kg (19,0 lbs)

 

Kenwood KA-550D amplifier

Features

Digital-ready power amplifier with excellent low-impedance drive capability

Dynamic Power Output (EIA) 2 x 90 W into 2 ohms

Ultra-short signal paths and circularised linear circuit layout to produce high-quality, high-definition sound especially for the UK market

Type monitor Source Direct position

Independent L/R channel volume control

Headphone Jack

 

Specifications

Power Output:  35 watts per channel minimum RMS, both channel driven at 8 Ω  from 20 - 20,000 Hz with no more than 0,08% Total Harmonic Distortion.

Maximum Continuous Power Output

DIN, 1 kHz, at 4 Ω  :  52 W + 52 W

DIN, 1 kHz, at 8 Ω  :  41 W + 41 W

IEC/NF, 63 Hz - 12,500 Hz, 0,7% T.H.D. at 8 Ω  :  40 W + 40 W

Total Harmonic Distortion : 

20 Hz - 20,000 Hz, 8 Ω  :  0,08%

1 kHz, 8 Ω  :  0,009%

Intermodulation Distortion:  0,03% at rtaed power (60 Hz : 7 kHz= 4 : 1)

Frequency Response:  10 Hz to 80 kHz +0 dB -3 dB (IHF)

Phono Frequency Response :  RIAA Standard curve ±0,4 dB (30 Hz to 20 kHz)

Damping Factor:  250 (50 Hz input 8 Ω )

Signal-to-Noise Ratio (IHF-A)

Phono (MM) :  76 dB

Tuner, Aux, CD :  82 dB

Tape :  82 dB

Signal-to-Noise Ratio at Unweighted, 50 mW Output (DIN)

Phono (MM) :  57 dB

Tuner, CD, Aux, Tape :  57 dB

Input Sensitivity/Impedance:

Phono (MM) :  2,5 mV / 47 k Ω

Tuner, CD, Aux, Tape :  150 mV / 47 k Ω

Phono Maximum Input Level (MM) :  150 mV, 0,08% T.H.D. at 1 kHz

Output Level Impedance:

Tape Rec :  150 mV / 220 Ω

Rec Out :  150 mV / 220 Ω

Channel Separation (DIN) at 1,000 Hz

Phono (Terminated with 2,2 k Ω ) :  64 dB

Aux (Terminated with 47 k Ω  +  250 pF) :  68 dB

Tone Controls

Treble :  ±10 dB at 10 kHz

Bass :  ±10 dB at 100 Hz

Phono Input Capacity :  320 pF

General

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

Pc :  150 W

Dimensions (W x H x D):  440 x 102 x 345 mm (17-5/16" x 4-1/16" x 13-9/16")

Weight:  6,8 kg (15,0 lbs)