Leak Stereo 70 Schematic

Page 1

SPECIFICATION

POWER OUTPUT (both channels sine-wave driven at 1 kHz):
35 watts rms each channel into 8 ohm loudspeakers.
28 watts rms each channel into 15 ohm loudspeakers.

TOTAL HARMONIC DISTORTION :
0.1% for ALL power levels up to 25 watt rms each channel at l kH7 into 8 ohm or 15 ohm ImidSpeakers.

[)AMPING FACTOR :
40 measured at 1 kHz for 15 ohm loudspeakers.
20 measured at 1 kHz for 8 ohm loudspeakers.

INPUT SENSITIVITIES:
The sensitivities shown below give 30 watts output at l kHz into 8 ohm loudspeakers
willl tone controls at 12 oclock and the volume control on maximum.

PICKUP l (RIAA Characteristic): 2mV
Input impedance : 471: ohm

PICKUP 2 (RIAA Characteristic): IOmV or 30mV
Input impedance: Wk nhm 100k nhm

Selected by switched input attenuator marked HI and LO located on the rear panel.

TUNER l/MIC': ZSmV or lmV

Input impedance : 47k ohm 47k ohm

Selected by cutting whitc leads on input switch. see paragraph 18.

"IUNER 2 : 60mV 250mV

Il'
Input impedance: 50k ohm 50k ohm

Selected by switched input attenuator marked HI and LO located on the rear panel.

REPLAY (TAPE MONITOR Button 'OUT): 400mV
Input impedance: 47k ohm

REPLAY (TAPE MONITOR Button INJ: 400mV
Input impedance : 20k ohm

OVhRLOAD DISTORTION :
Less than 0.1% for input signals up to 20dB above stated sensitivities from 30 Hz- 15 kHz.

IIUM AND NOISE:
66dB below 30 watts on TUNER and REPLAY and 56dB below 30 watts on other inputs.

CROSS-TALK :
Between L and R channels. -S(idH up In I kl-l7 :iml - .1th at It) -17.

H. J. LEAK St GD LTD.

BRUNEI. ROAD ' WEBTWAY FACTORY ESTATE ' LONDON W-S

lelephone ; 0le I64] (10 lines) Telegrams. Inland: Sinuwidiil Hahn. Limdun Foreign Sitluxuidal. LmnIon