Accustic Arts AMP I MK 2 User Manual

2
To our valued customer and music enthusiast,
With the purchase of your stereo power amplifier AMP I – MK 2 from ACCUSTIC ARTS
®
you have
opted for a product which incorporates the most modern technology to achieve excellent sound and
quality. To make sure that you have pleasure for as long as possible with your amplifier we kindly ask
you to thoroughly read this instruction manual through to the end.
We wish you many enjoyable hours of listening to music with your new unit.
SCHUNK AUDIO ENGINEERING – The home of ACCUSTIC ARTS
®
1 AMP I – MK 2 highlights
 Stereo power amplifier with high output performance, also suitable for less efficient, impedance
critical and low ohm loudspeaker systems up to 2 
 8 selected MOS-FET output transistors of highest quality
 Magnetically shielded and encapsulated 600 VA toroidal core transformer for high output
reserves; separate windings for right and left channel
 Very good smoothing thanks to more than 80.000 µF power supply capacity; Premium quality
capacitors (“Made in Germany”)
 Very high damping factor for perfect speaker control
 Integrated protective circuit switches ascents off when clipping, HF oscillations or too high DC
offset occurs
 Constant low operating temperature due to generously dimensioned heat sink integrated in
housing
 Balanced input (XLR) and unbalanced input (RCA) – the inputs are switchable
 ACCUSTIC ARTS
®
AMP I – MK 2 is “Handmade in Germany”

Accustic Arts AMP I MK 2 Specifications

General

Frequency Response (+/- 0.2 dB)	20 Hz - 20 kHz
Input Impedance	10 kΩ
Input Impedance (unbalanced)	10 kΩ
Weight	22 kg
Inputs	XLR, RCA
Outputs	Speaker terminals
Signal-to-Noise Ratio	> 100 dB
Signal-to-Noise Ratio (Alternative)	> 100 dB
Input Impedance (balanced)	10 kΩ
Dimensions (H x W x D)	130 x 482 x 430 mm
Dimensions (W x H x D)	482 x 130 x 420 mm

Summary

Welcome and Product Highlights

AMP I – MK 2 Key Features

Overview of the stereo power amplifier's main features including output performance and component quality.

Important Safety Instructions

Unpacking and Unit Positioning

Unpacking the Amplifier

Guidance on carefully unpacking the unit and checking for included items like cables and fuses.

Optimal Unit Positioning

Recommendations for placing the amplifier to ensure adequate ventilation and stable operation.

Installation and Connections

Rear Panel Component Identification

Identification of key rear panel connectors including audio inputs, speaker outputs, and power controls.

Interconnect Cable Setup

Instructions for connecting preamplifiers using balanced XLR and unbalanced RCA input sockets.

Loudspeaker Cable Connections

Guidance on using high-quality loudspeaker cables and connecting them to the protected terminals.

Ensuring Correct Speaker Phase

Steps to correctly connect speaker terminals to maintain proper signal phase and avoid damage.

Mains Power Connection Procedure

Procedure for safely connecting the power amplifier to the mains power supply.

Fuse Replacement Guide

Instructions on how to safely replace a damaged mains fuse with the correct type and rating.

Start-up and Operation

Front Panel Indicator Lights

Explanation of the function of the front panel LEDs indicating operational status and protection modes.

Powering On the Amplifier

Step-by-step guide for switching the amplifier on and off, including system connection order.

Maintenance and Troubleshooting

Looking After Your Amplifier

Recommendations for cleaning and maintaining the amplifier's housing and appearance.

Troubleshooting Common Malfunctions

Identifies common issues and provides solutions for resolving them, such as no sound or LED errors.

Technical Specifications