Ashly MX-508 Specifications download pdf (Page 7)

Operator Manual – MX-508 Mixer Page - 7

MX-508 Rear Panel

1. Microphone Input - The microphone input is

an active balanced type with a nominal

impedance of 1200 . Its noise performance is

best with a 200  microphone. A plug-in

transformer option is available. The Mic input

connector is a standard 3-pin XLR female

2. Input Pad - The Pad is a 20dB attenuation

switch on the rear panel for use with the mic

input when the input is being overdriven with

the Gain control at its minimum setting.

3. Line Input - A standard 1/4" TRS active

balanced connection, with a balanced input

impedance of 20K.

4. Channel Send & Return Patch - The channel

patch point allows an effect (EQ, compressor/

limiter, etc.) or direct out recording device to be

used on an individual channel. The MX-508 has

both single jack insert capabilities as well as

separate send and return jacks.

To use the separate send/return jacks, connect

the send jack to the input of the device to be

inserted, and use the return jack its output.

Unbalanced (tip-sleeve) mono plugs are

required for this configuration.

To use the single jack insert, use a balanced

(tip-ring-sleeve) stereo plug in the send jack

only, where the send output signal is on the tip,

and the return signal is applied to the ring.

To use the send jack as a Direct Line Output (pre

EQ), you must use a special cable with tip and

ring connected at the MX-508 Send and a tip-

sleeve mono plug at the other end. Connecting

tip and ring at the mixer is necessary for

uninterrupted signal within the mixer.

5. Aux Send Outputs - The Aux Outputs are

used to drive monitors, or any function which

requires isolated level control from the main

outputs. They are pseudo-balanced 1/4" tip-

ring-sleeve.

6. Aux Return Inputs - The return inputs are 1/4"

unbalanced. Return 1 is stereo, while Return 2

is mono. To use return 1 as mono, connect only

to the Right return 1 input.

7. Tape/CD Input - Tape Output - The stereo

inputs on RCA connectors have a nominal

operating level of -10dBu. The tape outputs are

-10dBu "pre-master", so they are not affected

by the settings of the Main output controls.

8. Transformer Balanced Outputs - The

transformer outputs use male XLR connectors

and provide isolation for 600  lines and are

controlled by the L & R Master levels, with a

nominal operating level of +4dBu.

Note: The transformer-balanced outputs are

designed to drive up to +24dBu into 600 

loads. With output transformers, the level

increases as the impedance of the terminating

load exceeds 600 . Unlike a direct-coupled

output, transformers are affected by termination

impedance. Expect a slight increase in output

level when driving high impedance inputs with

these outputs. The output meters will remain

accurately calibrated to the levels present on

the transformerless outputs, regardless of the

load on the transformer outputs.

9. Main Outputs – The Main Outputs are also

controlled by the L & R master. They are 1/4"

balanced TRS jacks with a nominal operating

level of +4dBu into any load

Installation

Always switch the unit off before making substantial changes to the settings or connectors. Use

four screws and washers when rack mounting. This unit has specific electrical and signal

requirements, please take special care to double check all connections and settings and refer to

the specifications section of this manual. The unit should be connected to a standard 3-wire

grounded electrical outlet supplying 100-240 Volts, 50-60 Hz. To reduce the risk of ground

loop hum, connect all audio equipment to the same electrical power source. Removal of the

ground pin is both unlawful and dangerous, as a potential shock hazard could result. Overall

power consumption is less than 30 watts.

Safety Instructions – 3

Introduction - 4

MX-508 Mixer – 5

Connectors & Cables – 5

Physical Description - 6

Front Panel

Rear Panel

Installation – 7

Typical Applications - 8

Factory Configs - 8

Troubleshooting - 9

Dimensions - 9

Specifications - 10

Warranty - 11

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Ashly MX-508 Specifications Page 7

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