CEC AMP6300

Commentary

Pre-main amplifier using original DIGM technology and LEF circuit.

The AMP6300 is a pure A-class single-ended amplifier and has a fully balanced design from the input stage to the output stage for low noise and low distortion.

The circuit configuration does not include a preamplifier section, and is designed to include only an input selector and a gain management circuit DIGM (Digital Intelligent Gain Management).
In DIGM, a bipolar switch is used to control the gain of the amplifier by switching the metallic film register to minimize signal degradation.
The volume control can be adjusted in 66-step increments of 1 dB. The DIGM circuit also enables digital balance adjustment without signal loss. The balance can be adjusted in increments of 1 dB up to + 10 dB.

A unique LEF (Load Effect Free) circuit is used for the amplifier circuit.
This method does not use a negative feedback circuit and provides realistic sound quality. This LEF circuit has also been improved to improve stability and sound quality.

The power supply uses a 600W toroidal transformer combined with a 100,000 μ F capacitor and LEF circuit. The high output of 190W + 190W is achieved with a class A amplifier.

The output stage employs 16 large 15A power transistors output stage to improve thermal stability while maintaining high power even under complex loads.

Equipped with 2 balanced input terminals.
The RCA input signal is converted into a balanced signal at the pre-amplifier stage using a semi-balanced input method. Custom-made parts are used for the RCA terminal.

The gain can be increased by 6 dB for each input channel in order to adjust the volume of different sources so that you can listen at the same level without greatly changing the volume position.

It is equipped with a unique temperature control system to cope with the heat generated by a class A amplifier.
When the sensor detects an internal temperature rise, a quiet fan with magnetic bearings automatically operates to keep the temperature inside the amplifier within a safe range.

Equipped with a VFD display, it can display volume, left / right balance, mute and amplifier internal temperature.

The casing is a composite structure consisting of a steel chassis with a hybrid ceramic Acoustone panel on the bottom to prevent physical vibration, and a large aluminum heat sink covering 1/3 of the bottom, combined with cooling fans to create airflow and improve cooling effectiveness.
Aluminum is used for the case cover and front panel.

Comes with a remote control made of extruded aluminum material.
This remote control can perform all operations except power ON/OFF.

Model Rating

Type	Control / Power Amp
Rated output	256W + 256W (4 Ω) 190W + 190W (8 Ω)
Frequency characteristic	1.5 Hz ~ 300 kHz + 0 -3dB (1W)
Signal-to-noise ratio	95 dB (IHF-A, 1W)
Total harmonic distortion factor	0.008%(1W)
Damping factor	320 (8 Ω, 10W)
Input terminal	Balanced : 2 lines (XLR) Unbalanced : Route 3
Input gain	0 dB, + 6 dB
Output terminal	Speaker output : 1 system Rec out : 1 system
Power supply voltage	100 VAC, 50Hz/60Hz
Power consumption	-
External dimensions	Width 435x height 125x depth 373 mm (including legs and terminals)
Weight	16kg
Attachment	AC cord Remote control