DBZ DMi 2/2000A, Руководство пользователя, Страница: 6 / 20

Introduction
Thank you for purchasing our power amplifier products, DMi series power amplifier has a high reliability,
stability and excellent acoustic properties. All of these are designed in a compact 2U size chassis.
Main Features :
Amplifier Module
D
Mi
series professional power amplifier adopts three circuit topologies of Class 2H and Class D + AB according to
the power level . The amp module boards choose copper pin plug-in resistors, which have a good performance on
the audio bandwidth.
The fully enclosed tunnel heat dissipation design is matched with the high-efficiency dense tooth radiator,
which can remove more than 90% of the heat by the fan, and will not stay in the chassis for a long time to form heat
accumulation. Compared with the traditional semi-closed heat sink, this design has improved heat dissipation greatly.
Toroidal Transformer
High quality toroidal transformer. High-quality iron core makes the electromagnetic loss and temperature rise are very
low. Power supply noise, the third harmonic signal and interference were effectively inhibited. Very low physical noise
and current noise. Using special silicon steel shield, greatly reduce the noise from the circuit affected by the
electromagnetic of transformer.
Protection System
It has multiple protection features such as output short circuit protection , overload protection , DC protection ,
VHF protection , output voltage automatic limiter , High Temperature Auto Power Limit, on progressive volume etc .
Well protect your system devices .
Sound Characteristic
MF: warm, mellow, full of human voice; LF: powerful, moderate experience; HF: clear and slender voice.
Applications
●
With the XLR input jack and Speakon output jack, so DMi series is widely applicable to a variety of installation system
requirements.
●
The device has three operating modes: STEREO (DMi 2
|
: CH1 - CH2 operate independently in this mode)
STEREO(DMi 4|: CH1 - CH4 operate independently in this mode), ,
PARALLEL (in which the device outputs a single-channel source via a dual-channel amplifier system) and BRIDGE
(in this mode, the device operates as a simple high-power amplifier ).
●
Each channel has its own SIGNAL and CLIP indicators
●
Whenever the protection circuit of the unit is activated, the PROTECTION indicator lights and the sound output is
automatically stopped.
●
The variable speed fan control system ensures low noise levels.
In order to maximize the power of the power amplifier and extend the normal life, before using this
power amplifier, please you must read this user manual carefully. After reading, keep this manual in a safe
place.
Foreword
4