AMP53
Experience the Pleasure of Pure Audio
Control / Power Amplifier
A compact body packed with cutting edge technology
Radically eliminates signal loss and distortionA compact control/power amplifier designed for the pure musical reproduction equipped with unique DIGM volume control and LEF circuit.
The shortest possible signal path in circuitry without preamp section andglobal feedback loop realizes the finely-textured colourful expression andquick response.

Eight 15A power transistors

Integrated DIGM

The AMP53's power belies its modest size, by packing 90000μF capacitors aswell as a 300W toroidal transformer combined with its LEF circuitry.

DIGM (Digital Intelligent Gain Management) is the ultimate in volume control technology. DIGM adjusts volume digitally by switching metal-film resistors with a unique array of bipolar class-A switches. It digitally recalibrates theamplifier gain in 66 steps, without dividing and downgrading the input signal.
The AMP53 maintains the input signal undiluted and offers an unprecedented
66 picture-perfect amplifier gains digitally calibrated for volume selection.

Balance adjustment without additional circuitry
The AMP53's DIGM volume control enables digital adjustment of the left andright output balance, with no dilution to the input signal and no enlargement of
the signal path, in 1dB increments up to +10dB.

Fully balanced power amplifier design
All circuitry in the AMP53 are fully balanced from head to toe from input signal entry to where the output meets the speaker terminal. This enables a radical
reduction in noise and distortion, and an improvement in sound quality. The
left and right signals, moreover, are processed through independent, dedicatedcircuitry to achieve channel separation and high-quality stereo imaging.

Two balanced and two unbalanced RCA input connections
The AMP53 was designed to give preference to two balanced XLR input connections, providing the best match for CEC's TL53Z CD player, DA53 DA
converter and PH53 phono preamplifier from the same design series. System
integrity is maintained for RCA connections by converting the unbalanced signal to a balanced signal at the point of entry to the amplifier.

Two-stage input sensitivity
For balancing the output volumes among different sources closer in line, theAMP53 offers a 6dB-gain option independently for each input connection.
This minimizes the volume adjustments required when alternating sources between CD/DVD players and the 0dBU tuners/phonograph preamplifiers.

The AMP53 is equipped with eight 15A power transistors to maintain highpower even under complex loads, improving thermal reliability and ensuring
safe operation of the amplifier at all times.

High 120W X 2(8Ω) power

Heavyset extruded-aluminium enclosure
The AMP53's heavyset extruded-Aluminium enclosure and volume adjustment knob combine beauty, stability and high cooling efficiency. Air is ventedin from the top-back, cooling a large heat sink located directly under the top
cover, and discharged from the base-centre by a fan in the undercarriage.

Internal temperature control system
The AMP53 monitors its internal temperature with a sensor and automaticallycontrols airflow within its cooling system, maintaining thermal conditions optimal, with help from its proprietary, virtually noise-free ferromagnetic bearing
fan.

Two alphanumeric VF-Displays
Two VF-displays convey all functional information including volume, input
selection and internal temperature.

Specifications
Audio unit
Output power120W+120W(8Ω)

Frequency response

10Hz - 200kHz / +0 / -0.2dB / 1W

S/N Ratio

XLR 101dB, RCA 91dB (flat / 1W)

THD

XLR 0.0028%, RCA 0.016% (1W /1kHz)

Dumping Factor

235

Input / Output
Input terminals

2 x balanced XLR input, 2 x unbalanced RCA input

Input gain

0dB, +6dB

Output terminals

Speaker Output x 1, REC OUT (RCA) x 1

GeneralPower supply

AC 120/230V , 60/50Hz (Specified on the rear panel)

External Dimensions

217.5(W)×448(D)×108(H)mm (incl. Leg and terminal)

Weight9.6kg

Accessories

AC power cord, Remote control, Owner’s manual*Specifications and design are subject to change without notice.

Safety Precautions
Be sure to operate this product properly once
you have thoroughly read the owner's manual.
0707-A

CEC Co.,Ltd., Saitama, Japan
http://www.cec-web.co.jp