Specifications

ABM, MAG 300 & ELECTRIC BLUE 180 PREAMPS

INPUTS

 

High Input

Impedance 3.9M Ohms

Low Input

Impedance 10K Ohms

Line Input (ABM only)

Impedance 22K Ohms

Effects Return

Impedance 22K Ohms

OUTPUTS

 

Tuner Output

Impedance 22K Ohms

Sub Output (ABM only)

Impedance 22K Ohms

Effects Send

Impedance 22K Ohms

D.I. Output

600 Ohms balanced

Low Pass (RPM1 only)

Impedance 1K Ohms

High Pass (RPM1 only)

Impedance 1K Ohms

Full Range (RPM1 only)

Impedance 1K Ohms

Speaker Outputs

Minimum impedance 4 Ohms

Input range 150mV to 20V p-p Input range 300mV to 40V p-p Input level 0dBu nominal Input level 0dBu nominal

Level 0dBu nominal Level 0dBu nominal Level 0dBu nominal Level -20dBu nominal Level switched 0/+4dBU Level switched 0/+4dBU Level switched 0/+4dBU

EQUALISATION (Electric Blue 180 & MAG 300)

EQUALISATION (ABM)

Bass

+/-15dB @ 100Hz

Shape (Push Flat)

+8dB @ 50Hz & 4kHz, -8dB @

Lo Mid

+/-15dB @ 220Hz

 

400Hz, filter slope - 6dB/octave

Middle

+/-15dB @ 660Hz

Bass

+/-15dB @ 45Hz

Hi Mid

+/-15dB @ 1.6kHz

Middle

+/-15dB @ 660Hz

Treble

+/-15dB @ 7kHz shelving

Treble

+/-15dB @ 7kHz shelving

Deep

+8dB @ 50Hz

Slider1

+/-15dB @ 110Hz

Bright

+10dB @ 10kHz

Slider 2

+/-15dB @ 340Hz

Signal to Noise

Better than 80dB (EQ flat)

Slider 3

+/-15dB @ 1.3kHz

Distortion

Less than 0.5% THD

Slider 4

+/-15dB @ 2.6kHz

GENERAL SPECIFICATION

 

Frequency Response

-3dB at 17Hz and 30KHz (Electric Blue 150: -3dB at 22Hz and 25KHz)

Rack Preamp RPM1 Crossover

Variable between 35 and 160Hz

Power Requirements

230 / 115V

Park Farm • Inworth • Colchester • Essex • CO5 9SH

E-mail: info@ashdownmusic.co.uk

Page 6
Image 6
Ashdown Design & Marketing manual Specifications, ABM, MAG 300 & Electric Blue 180 Preamps, Outputs, Equalisation ABM