NIKKO TRM-1200

Commentary

Pre-main amplifier sold in America and Europe.
Sales began in Japan in 1970.

NIKKO original hybrid IC is adopted for the equalizer amplifier part, and the quality and performance are improved by plug-in unit.

Uses a NIKKO driver transformer wound around a trifilar ring on the ring core.

It is equipped with a switching mute circuit so that smooth louding can be obtained when switching on / off.
The operation indication is also indicated by the VU meter lamp.

A large-capacity regulator is used to stabilize the drive stage and preamplifier stage.

NIKKO NW-1 circuit protector is used for the protection circuit.

Equipped with an independent level meter on the left and right, and an output monitor.
Input display and function display are also available.

Equipped with two phono inputs.

Equipped with left and right independent tone control.
In addition, it is equipped with a tone flat switch to make the characteristics completely flat.

Stereo, reverse and monaural can be selected with the mode selector switch.

Center channel output for 3D system is mounted.

A speaker compensator is mounted on the back panel and the characteristics of the speakers can be corrected.

Model Rating

Type	Pre-main amplifier
Music power	± 1 dB : IHF: 160W (4 Ω) 150W (8 Ω) 130W (4 Ω) 120W (8 Ω)
Effective power	Single-channel operation : When both channels are operating : 50W/50W (4 Ω) 45W/45W (8 Ω) 27W/27W (16 Ω) 40W + 40W (8 Ω)
Power Response	15 Hz to 30 kHz (1 dB, 0.5%)
Frequency characteristic	Main input : 13 Hz to 50 kHz ± 1 dB Aux input : 20 Hz to 40 kHz ± 1 dB
Distortion factor	0.3% (Effective Output) 0.1% (at 1W output)
IM distortion factor	0.3% (at 30W output) 0.1% (at 1W output)
Input Sensitivity / Impedance	Phono1, 2 : 2mV/50k Ω Mic : 2mV/50k Ω Tape, Tuner, Aux : 220mV/100k Ω
S/N	Phono:70dB Mic:70dB Tape, Tuner, Aux : 85 dB
Tone control	Bass : ± 12 dB (70 Hz) Treble : ± 12 dB (10 kHz)
Loudness	+ 10 dB at 70 Hz, + 8 dB at 10 kHz
Residual noise	0.8mV
Damping factor	15 (4 Ω) 30 (8 Ω) 60 (16 Ω)
Semiconductor used	IC : 2 Transistor : 19 Diode : 6 pcs Varistor : 4 pcs
Pwer	AC100V/120V/220V/240V, 50Hz/60Hz
Power consumption	50VA(No Signal) 260VA(Maximum)
External dimensions	Width 390x Height 127x Depth 310 mm
Weight	9.0kg
Attachment	Silicon cloth Pin jack Speaker cord Pin jack cord