Kenwood Two-Four Receiver
This receiver in the new Kenwood "Two-Four" line gives you: firstly, it functions as a high-grade stereo receiver with 80 watts of RMS power (152 watts total IHF music power); secondly, it decodes regular matrix (RM sources with accurate four-channel separation); thirdly, its SQ decoder circuit permits 4-channel play of SQ Matrix records; and , last but not least, it accepts a little plug-in CD-4 demodulator - our model KCD-2 - for playing discrete 4-channel CD-4 records. So, whatever the situation in regard to record availability in your area may be, whatever personal listening preferences you may have, whether you want to go 4-channel right now or wait a little longer, the KR-6340 is tailor-made to your needs.
Coming from Kenwood, the KR-6340 boasts the kind of careful, guaranteed engineering that's exemplified by DSD FM stereo decoding, unconditionally guaranteed output power at any frequency, and fully electronic protection against short-circuits and overload. All told, a two-channel/four-channel receiver that continues a great tradition of Kenwood high fidelity.
Four-channel capabilities
Built-in Separate SQ and RM Matrix Decoders
Prepared for FM Discrete 4-channel Broadcasts
Accepts Plug-in CD-4 Demodulator
Recording and playback 4-channel Tape and Aux Connectors, and 4-channel headphone jakcs
Drivers a Total of Eight Speakers
Amplifier section capabilities
BTL Amplifier Layout Gives 250% Power in 2-channel mode
Power Guaranteed Unconditionally at Any Frequency
Fully Electronic Protection Circuit
AM/FM Stereo Tuner Capabilities
FET and Ceramic Filters in FM Tuner
Exclusive Kenwood DSD System
Other
Features
Program Indicator Lamps
Convenient 4-channel Balance Controls
Specifications
FM Tuner Section
Usable Sensitivity (IHF): 2,0 µV
Frequency Response: 20 Hz - 15,000 ±1,2 dB
Total Harmonic Distortion
Mono : 0,5% (at 400 Hz 100% modulation)
Stereo : 0,8% *at 400 Hz 100% modulation)
Signal-to-Noise Ratio: 63 dB at 1 mV input
Image Rejection: 60 dB
Selectivity (IHF ALT channel): 50 dB
IF Rejection: 90 dB
Spurious Signal Rejection: 90 dB
AM Suppression: 60 dB
Capture Ratio: 3,0 dB
Stereo Separation: 40 dB (at 1,000 Hz); 20 dB (at 10,000 Hz)
Subcarrier Suppression: 45 dB
Antenna Impedance: 300 Ω (balanced); 75 Ω (unbalanced)
AM Tuner Section
Usable Sensitivity (IHF): 25 µV
Signal-to-Noise Ratio: 45 dB at 1 mV input
Image Rejection: 45 dB
Selectivity (IHF): 30 dB
IF Rejection: 35 dB
Antenna: Built-in ferrite bar antenna
Main Amplifier Section
RMS Power Output Full Channel Driven into:
8 Ω at 20-20,000 Hz : 2 x 40 watts (2-ch); 4 x 15 watts (4-ch)
8 Ω at 1,000 Hz : 2 x 50 watts (2-ch); 4 x 20 watts (4-ch)
4 Ω at 10,000 Hz : 2 x 45 watts (2-ch); 4 x 23 watts (4-ch)
Dynamic Power Output
Into 8 Ω : 170 watts (2-ch); 120 watts (4-ch)
Into 4 Ω : 152 watta (4-ch)
Total Harmonic Distortion
At Rated Power into 8 Ω : 0,8%
At -3 dB Rated Power into 8 Ω at 1,000 Hz : 0,3%
Intermodulation Distortion (60 Hz : 7 kHz = 4 : 1)
At Rated Power into 8 Ω : 0,8%
At -3 dB Rated Power into 8 Ω : 0,3%
Power Bandwidth: 20 Hz - 40,000 Hz
Damping Factor: 20 at 8 Ω (4-ch)
Speaker Impedance: 4ohm - 16 Ω
Pre-Amplifier Section
Input Sensitivity/Impedance
Phono : 1,5 mV/100 k Ω
AUX : 150 mV/50 k Ω
Tape Play : 150 mV/50 k Ω
Maximum Input Voltage (RMS)
Phono 1 : 100 mV (T.H.D. 0,8% at 1,000 Hz)
Signal-to-Noise Ratio
Phono : 60 dB
AUX : 75 dB
Tape Play : 75 dB
Output Voltage/Impedance
Tape Rec (PIN) : 150 mV/100 Ω
Tape (DIN) : 40 mV/50 Ω
Frequency Response
Phono 1, 2 : RIAA Standard curve ±1 dB
Tuner, AUX, Tape Play : 20 - 20,000 Hz ±1 dB
Tone Controls
Bass : ±10 dB at 100 Hz
Treble ±10 dB at 10,000 Hz
Loudness Control (-30 dB) : +10 dB at 100 Hz ; +5 dB at 10,000 Hz
General
Switches
Speaker Selector : A, B Push Switch
Input Selector : AM; FM; Phono; CD-4; AUX
Mode: Mono; 2-CH; RM; SQ; Discrete
Tape Monitor: Push Switch
Others: Loudness, AMP Control, Muting
AC Outlet: 1 unswitched
Power Consumption: 320 watt at full power; 35 watt at no signal
Dimensions (W x H x D): 500 x 153 x 360 mm (19-11/16" x 6-⅓2" x 14-5/32")
Weight: 15 kg (33 lbs)
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