Trio KA-3300 - Vintage Integrated Amplifier

The unit is in excellent condition, fully tested and in working order. It has a few small marks around the body but hardly visible. Comes with power cable. 

Bass and Treble Controls:

Bass: ± 8 dB at 100 Hz

Treble: ± 8 dB at 10 kHz

Loudness Control:

6 dB at 100 Hz

4 dB at 10 kHz

Pre-Main Amplifier: Uses FET differential amplification ICL (Input Capacitor-Less) system, which eliminates the input capacitor to reduce sound quality degradation.

Equalizer Amplifier: Employs FET differential amplification in the first stage to reduce phase deviation and distortion.

Power Amplifier Section:

All stages are directly connected.

Pure complementary service OCL (Output Capacitor-Less) circuit is adopted.

The output stage features a newly developed Power Darlington Block, an acoustic element composed of four transistors and a temperature compensation circuit.

Uses a triple diffused 40W block at 35W with a margin to achieve low distortion and high thermal radiation efficiency.