AVE AMV 2125-DSP User Manual

User guide AMV 2125-DSP page 1

Vertriebs­Entwicklungsgesellschaft
mbH

AMV 2125-DSP

Automatic mixing amplifier

User guide

Table of contents

1. Introduction

1.1 Security advices

2. Description of components and functions

3. Basic operations

3.1 Microprocessor gate control

3.2 Programmable settings („Presets“)

3.3 Use of different pre-adjustments („Presets“)

3.4 Changing existing preset-adjustments

4. Extended Functions

4.1 Adjust new presets

4.2 Parameter-menue

4.2.1 Preset

4.2.2 Parameters

4.2.3 Configuration

4.2.4 Utility

4.3 Index of all programmable parameters

5. Tecnical datas

User guide AMV 2125-DSP page 2

1 Introduction

Thank you for choosing the A.V.E. automatic mixing amplifier AMV 2125-DSP with five
microphone/line inputs and a switchable CD/Aux.-Input. It was designed particularly for superior audio

quality in churches as well as other utilizations with acoustically difficult room proportions. It’s possible

to achieve an optimized acoustic pattern every time.
Each microphone/line input is equipped with a Gain-controller, a THD-controller, 3-band equalizer, as

well as indicators for volume, operating status, and peak, respectively. Additionally it’s equipped with a

2-channel-DSP, with a 31-band (Terzband) graphic equalizer per output, 6 fully parametric equalizers
per output, each with an individually adjustable factor of 0,2 up to 100 to provide an optimum feedback
elimination. Therefore the AMV 2125-DSP is qualified to sound each kind of critical spaces.

The AMV 2125-DSP is equipped with its own software. This makes programming simple and
straightforward – Laptop or PC are no longer required. Different sets of settings, so-called „presets“,
can be recalled by the user. They can be programmed for each occasion as required.

This manual adresses users in sections 2., 3., and 4.1. These parts of the manual deal with explaining
the components of the unit and describe the basic operation. The following part is addressed to the
qualified technical personnel in charge of extended programming and internal modifications.

1.1 Security advices

Please read the information provided in this manual before starting up the unit.

WITHIN THIS UNIT THERE IS DANGEROUS VOLTAGE PRESENT CONSTITUTING A RISK OF

ELECTRIC SHOCK. DO NOT OPEN THE COVER. INTERNAL MODIFICATIONS ARE TO BE
COMPLETED BY AUTHORIZED PERSONNEL ONLY.

The AMV 2125-DSP is equipped with an approved power cable. At one end there is a three-pole
mains connection socket (rubber connector) and at the other end a CE-standardized Schuko-socket to
connect to a 230 V/ 50 Hz voltage source. Please take care, not to damage these power cords. Do not
use any defective or damaged power cords!

advice • planning • development • assembly of sound systems
AVE GmbH • Gustav-Rau-Straße 6 • 74321 Bietigheim-Bissingen • Germany .
phone [phone] • fax [phone]

[e-mail] • www.ave-stuttgart.de

User guide AMV 2125-DSP page 3

11 10 9

1

2

3 4 5 6 7 8

1. Control dial for Gain, THD, Treble, Middle and Bass

The 5 Potentiometer per channel allow following adjustments:
Gain: The Gain-controller customizes the amplification of the channel to the level of the signal

source of the input.
With the barrier controller the activating sensibility can be adjusted when the microphone will
be activated

With the 3-Band-Equalizer (hights, middles, depths) the microphone is adapted to the
speaker to achieve an optimized sound.

Treble:  12 dB at 10 kHz
Mid:  12 dB at 700 Hz
Bass:  12 dB at 70 Hz

THD low noise barrier: a noise gate (barrier), which defines the activating sensibility of the

microphones can be adjusted here. The barrier for the 5 microphone inputs are adjusted by a

potentiometer respectively.

2. Gate- und Clippingdisplay (for channel 1 – 5): Optical display of activated e.g. overdriven
input.

3. Volume control (for channel 1 – 5): with these volume controls all levels of the signal
sources can be adjusted which are plugged to the microphone/line-inputs (26). During
installation by authorized experts the optimized level will be marked with a sign.

4. Volume control for CD/Aux

5. Depth- and Hights- control for CD/Aux

6. Volume/Value“-control dial: control dial with integrated caliper, is used to regulate the

“Master Volume”, i.e. the volume for all outgoing signals.

7. „Preset/Parameter“-control dial: control dial with integrated caliper is used to access the
different presets.

8. power switch: by using the power switch the unit can be switched on and off.

9. LCD-Display: the high luminous display contributes a clear and user-friendly handling.

10. Out State display:

Red: amplifier overdriven at input

Yellow: failure – when switching on the amplifier the LED flashes short time and disappears

afterwards.

11. channel switch CD/Aux: Sound carrier selection. The reproducers can be connected at the
backside.

User guide AMV 2125-DSP page 4

12 11

1

2
10

3 4 5 6 7 8 9

1. Mains connection: The unit is supported with power, when the cable is connected to a 230 V
alternating current source.

2. Fuse: 3,15 A

3. Outputs: connections for the activation of the output stages

4. Optional Remote Control for the outputs 1 and 2

5. Mute-switch: for all or alternatively favoured inputs

6. Recording: Cinch-connections for recording units

7. CD-replay: Cinch-connections for music transmission with CD

8. Replay: Cinch-connections for music transmission (Aux)

9. Direct OUT: direct output without signal processing. This output can be used e.g. for

transmission of directly room scenery to external accommodations.

10. Level Direct OUT: controls the sound of direct output

11. Mikrophone/Line-inputs

12. Feeder clip for loudspeaker (50, 70, 100 V, 4 Ohm)

Optional Remote Control outputs 1 and 2

By insertion of both prints the possibility is given to regulate
the outputs from distance. Therefore Jumper 11 and 12 must
be unsoldered.

Mute-Switch for all or alternatively favoured inputs. By
removing of one of Jumper 1 – 6 you can obtain that a
favoured input is active despite of mute-switch.

User guide AMV 2125-DSP page 5

3. Handling the unit

3.1 Microprocessor gate control

Continous level monitoring of 5 input channels by RISC microprocessor
Level compare accuracy better than ±2 dB
Channel on attack time less than 10 ms
Channel on hold time 256 ms (default) / 512 ms, selectable via switch
Last On (default) / Channel 1 On, selectable via switch, hysteresis 6 dB
Simultaneous active channels: none, two, three or four.

Switch 1

Hold time

Off

256 ms

On

512 ms

Switch 2

Active channel

Off

Last channel

On

Channel 1

Should the microphones work
independently of the automatic remove
the nut M3. Now you can pull the
board to the rear.

After removal of the corresponding
jumpers tighten the board again.

Switch 3

Switch 4

Active channels

Off

Off

None

Off

On

2 channels

On

Off

3 channels

On

On

4 channels