ADM 1540 Equaliser Modules
Posted: Wed May 11, 2011 3:28 amADM 1540 Equaliser Modules. $170 each - 4 available
These modules were manufactured in 1980 by Audio Design Manufacturing.
They are 4 band inductors based reciprocal equalisers with precision switched gain settings and frequency selection.
11 position Grayhill dual concentric switches provide 2, 4, 6, 9 & 12db of boost or cut at the following frequencies.
LF: 40, 80, 100 Hz Shelving
ML: 200, 350, 560, 900 Hz Peak & Dip
MH: 1.5, 2.5, 4.3, 7.2 kHz Peak & Dip
HF: 10, 12.5, 15 kHz Shelving
Require a dual rail 20 volt supply. Rob or Joe Malone (JLM) can rack them up for you or can sell you the power supply to suit if you're into DIY.
Edge connector and schematics included.
These are nice EQ's from the 80's, engraved face plates, high quality components and built like a tank. Think API or Quad 8.
These modules were manufactured in 1980 by Audio Design Manufacturing.
They are 4 band inductors based reciprocal equalisers with precision switched gain settings and frequency selection.
11 position Grayhill dual concentric switches provide 2, 4, 6, 9 & 12db of boost or cut at the following frequencies.
LF: 40, 80, 100 Hz Shelving
ML: 200, 350, 560, 900 Hz Peak & Dip
MH: 1.5, 2.5, 4.3, 7.2 kHz Peak & Dip
HF: 10, 12.5, 15 kHz Shelving
Require a dual rail 20 volt supply. Rob or Joe Malone (JLM) can rack them up for you or can sell you the power supply to suit if you're into DIY.
Edge connector and schematics included.
These are nice EQ's from the 80's, engraved face plates, high quality components and built like a tank. Think API or Quad 8.