pro audio search

Retro Instruments

Retro Instruments 2A3 Dual Program EQ

Pultec-style Passive Program EQ

Equalizer

Price not published

Specifications

Type
Equalizer
Description
Pultec-style Passive Program EQ
Topology
all-tube/valve, passive LC (inductor-capacitor) equalization, Pultec-style, non-feedback
Signal path
Analog
Channels
2
Channel format
dual-mono / stereo pair
Form factor
19-inch rack
Rack units
2U
Powered
AC mains (IEC), 115/230V switchable, 50–60Hz
Frequency response
flat within 1 dB, 20 Hz–20 kHz
Country of manufacture
USA

Details

Controls: LF boost (20/30/60/100 Hz), LF cut (20/30/60/100 Hz), HF boost (1.5/3/4/5/6/8/10/12/14/16 kHz), HF cut (5/10/20 kHz), subsonic filter (40/90 Hz, peaking)

I/O: XLR input/output

Notable use: Cited users: Ross Hogarth, Michael Brauer, Joe Chiccarelli

Notes: Evokes the Pultec EQP-1A program EQ — manufacturer states the design is 'accurate to the industry-standard Pultec EQ performance,' adding HF boost sweet spots beyond the original EQP-1A frequency set. Tube complement: 2x12AX7, 2x12AU7. S/N >76 dB, channel separation >70 dB, THD <1% (20 Hz–20 kHz). Dimensions 19"W x 3.5"H x 9"D. A search-engine snippet suggested a dealer price near $4,295, but this was not confirmed via direct fetch as manufacturer MSRP — left blank.

Where to buy

Similar equalizer