LEAK 2200
Price unknown (around 1975)
Commentary
This is a pre-main amplifier that has inherited the tradition since Point One.
The power amplifier employs a pure complimentary service OCL stage and a constant current drive class A driver stage. By applying a deep and stable DC NFB, it is designed to operate stably without being affected by temperature changes, load fluctuations, shock noise, etc.
A protective circuit is provided to protect the speakers and output transistors in the event of an accident such as output terminal short-circuit or excessive input.
A circuit with differential inputs is used for the equalizer stage, and the DC NFB is applied to the overall stage so that it is shock-resistant and stable.
It is equipped with functions such as a BTL circuit that can produce monaural output with a single switch, and a speaker matrix switch that can produce a hall tone effect.
Model Rating
| Type | Stereo pre-main amplifier |
| Power Amplifier Unit | |
| Output | 45W + 45W (both channel operation, 8 Ω, THD0. 5%) |
| Single channel power | 120W |
| Total harmonic distortion factor | 0.01% (1W, 1 kHz) 0.1% (45W, 1 kHz) 0.1% (1W, 10 kHz) |
| Cross modulation distortion factor | 0.1%(70Hz:5kHz=4:1) |
| Output bandwidth | 10 Hz to 40 kHz -2dB (both channel operation, 45W) |
| Damping factor | 40(80Hz) |
| Residual noise | 1.5 mv (Volume Max) |
| Preamplifier Section | |
| Input Sensitivity / Impedance | Disc : 2.5 mv, 6.5mV/47k Ω Tape, Cassette, AUX : 150mV/100k Ω |
| Signal-to-noise ratio | Disc:-65dB Tape, Cassette, AUX : -80dB |
| Allowable input | Disc:+35dB |
| Recorded output | 150mV |
| Tone control | Treble : ± 13 dB (15 kHz) Bass : ± 13 dB (50 Hz) |
| Filter | High : -3dB (5 kHz), -10dB (10 kHz) Low : -3dB (70 Hz), -10dB (50 Hz) |
| <General> | |
| External dimensions | Width 408x Height 132x Depth 313 mm |
| Weight | 9kg |