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Equaliser in 500-Series Module Format

  • Baxandall Shelving EQ with high-pass and low-pass filters, each with ±5 dB of gain
  • Gridded potentiometers
  • High-pass and low-pass filters with 12 dB per octave
  • DC-coupled signal path without a transformer for maximum transparency and clear bass
  • Relay-controlled hardwired bypass for unbiased A/B comparisons
  • API Series 500 format, requires a 500 slot
  • Available since February 2026
  • Item number 635911
  • Sales Unit 1 piece(s)
  • Pre-Amp No
  • 48 V Phantom power No
  • compressor No
  • limiter No
  • equalizer Yes
  • De-Esser No
  • other processors No
  • Rack/Frame No
  • supplies No
B-Stock available from $1,199
$1,555
The shipping costs are calculated on the checkout page.
In stock
1

1 Customer ratings

2 / 5

handling

features

sound

quality

1 Review

A
Poor value
AlvinGB 14.06.2026
Excellent HPF, very accurate and quiet, superior in terms of sound and self-noise to other discrete 500 series filters such as the Roger Schult W2377. High quality unit. In two minds on LPF as there are many pres (Avedis, Maag) that offer frequency boosts over 20 khz, which negate the idea of a LPF. As to the rest, nothing you can’t do and better with a 500 series parametric EQ such as the Undertone UTEQ 500. Very expensive for what little it offers. Unless you are desperate for a high quality HPF, look elsewhere.
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