The Leak 2000 Tuner-Amplifier has been manufactured to the highest specifications and includes the most comprehensive facilities.
Amplifier Section
The powerful 35 watts per channel amplifier is of advanced design, using modern technology power transistors and direct coupling to the loudspeakers. This provides exceptional power band width and damping factor down to the lowest audio frequencies. The wide band width design of the amplifier ensures minimum intermodulation distortion and very low harmonic distortion through the audio spectrum. Incorporated in the amplifier is special protection circuitry, this prevents damage to the bass speaker unit and prevents damage or fuse blowing within the amplifier in the event of a short circuit occurring.
Tuner Section
The tuner section incorporates numerous advanced technical features. The high quality front end, incorporating an FET provides high sensitivity with excellent stability. The IF circuitry is designed round a 14 pin integrated circuit using state of the art. Technology. The phase locked loop-stereo decoder provides high stability of stereo separation.
Special facilities for extending your hi-fi system
The 2000 Tuner-Amplifier includes special facilities for extending the uses of your hi-fi system.
Auxiliary input - this may be used for connecting an additional item of equipment, for example a television fitted with sound output facility.
Normal/Matrix Switch - when this switch is pressed, the speaker 2 connections are modified, allowing the loudspeakers connected to the speaker 2 sockets to operate as the rear-channels in a simulated 4-channel system. This provides a good simulation of concert hall reverberation effects
Preamplifier and Main Amplifier Normal/Separate switch - this allows flexibility in the use of the tuner-amplifier. With the switch in the Out (normal) position, it operates in its normal mode.
With the switch in the IN (separate) position, the preamplifier output is no longer connected to the main amplifier. A particular use of this facility is the interconnection with a rear channel amplifier, containing a matrix decoder (e.g. for SQ or QS systems), for the reproduction of quadraphonic sound (4-2-4 system).
The normal/matrix and the normal/separate switches give the option therefore of two types of 4-channel sound.
Variable level FM muting control - when the mute button is depressed, rotating the mute level control clockwise increases the minimum threshold level of signal the receiver will accept. Location of local transmissions is then made easier by the elimination of remote broadcasts.
Specifications
Output Power both channels sine wave driven at 1 kHz) :
40 +40 watts at 4 Ω speakers
35 + 35 watts at 6 Ω speakers
30 +30 watts at 8 Ω speakers
Single Channel Mode : 80 watts
Total Harmonic Distortion :
All power up to 30 watts, 1 kHz ; 0,1%
At 1 watt, 1 kHz : 0,01%
At 30 watts, 10 kHz : 0,1%
Intermodulation Distortion (70 Hz and 5 kHz in ratio 4:1) : 0,1%
Power Bandwidth: 2 dB down relative to 35 watts : 10 Hz to 40 kHz (9,5% T.H.D. both channels driven)
Damping Factor: 40 (measured at 80 Hz)
Residual Hum and Noise (Volume control minimum): 1 mV max
Control Amplifier (-40 dB volume setting)
Treble Control: ±13 dB at 15 kHz
Bass Control : ±13 dB at 50 Hz
Main Amplifier Input:
Sensitivity : 830 mV (for 35 watts)
Input Resistance : 47 k Ω
Frequency Response (-2 dB) : 20 Hz - 50 kHz)
Hum and Noise : -90 dB
Crosstalk (at 10 kHz) : - 50 dB
Disc Input
Sensitivity (at 1 kHz for 35 watts) : 2,2 mV or 6 mV
Input Resistance : 47 k Ω
Frequency Response: Compensated to IEC 98 fine groove characteristic
Hum and Noise: better than -65 dB
Input Overload Margin : +35 dB
Crosstalk (at 10 kHz) : -35 dB
Tape, Cassette, Aux Inputs
Sensitivity (for 35 watts): 140 mV
Input Resistance : 100 k Ω
Frequency Response : 25 Hz - 40 kHz (±1,5 dB)
Hum and Noise : better than -800 dB
Crosstalk (at 10 kHz): -40 dB
Alternative Aux Sensitivity: 550 mV
Tape Cassette Output
Output High : 140 mV
Output Low (DIN standard) : 1,4 mV / k Ω
FM Tuner
Frequency Range: 87,5 to 108 MHz
Sensitivity: 1,6 µV (30 dB signal/noise)
Mono Distortion (1 kHz) : 0,5%
Stereo Distortion (1 kHz) : 0,5%
Hum and Noise : better than -65 dB (relative to 75 kHz deviation, 1 mV rf input)
Image Rejection : -45 dB
IF Rejection: _60 dB
Alternate Channel Rejection : -50 dB
AM Rejection : -50 dB
Capture Ratio : 1,5 dB
AFC Ratio : 2,5 to 1
Mute Level Range : 5 µV to 50 mV
De-emphasis : 50 micro-seconds
Frequency Response : 40 Hz - 14 kHz (±1,5 dB)
Pilot Sensitivity : 5 % modulation
SCA Rejection : -70 dB
Channel Separation : 35 dB minimum (1 kHz); 30 dB (10 kHz)
Quasi Stereo Separation : 20 dB (1 kHz); 4 dB (10 kHz)
AM Tuner
Frequency Ranges
Long Wave : 150 to 350 kHz
Medium Wave : 510 to 1650 kHz
Sensitivity : 20 µV (20 dB signal/noise)
Image Rejection : -40 dB
IF Rejection : -40 dB (at 1 MHz); -30 dB (at 220 kHz)
Selectivity : 25 dB
AF Bandwidth (-3 dB) : 3 Hz
Dimensions (W x H x D): 471 x 132 x 292 mm (18,8" x 5,3" x 11,7")
Weight: 9,7 kg (21,5 lb)