The rare “S” Pultec – more frequencies and high shelf boost, in the classic 3U blue box. The Pultec EQP-1S is the 3U version of the (formerly) extremely rare EQP-1S3. It has the same wide-bandwidth tube line amp as the EQP-1A, but with modified low-frequency curves, two extra peak boost frequencies and – most importantly – two high-frequency shelf boost curves.
Why customers choose it
Who it is for
Engineers who love the EQP-1A but want extra midrange and high-shelf options for vocals, drums and the mix bus.
Specifications
| Type | Program Equalizer |
|---|---|
| Amplifier | Tube |
| Low shelf boost | 30, 40, 70, 100 Hz shelf boost, 0 – 13.5 dB |
| Low shelf cut | 30, 40, 70, 100 Hz shelf attenuate, 0 – 17.5 dB |
| High peak boost | 1, 2, 3, 4, 5, 8, 10, 12, 16 kHz peak boost, 0 – 18 dB |
| High shelf boost | 5, 10 kHz shelf boost, 0 – 14 dB |
| High shelf cut | 5, 10, 20 kHz shelf attenuate, 0 – 16 dB |
| Input Impedance | ~600 Ohms |
| Output Impedance | ~50 Ohms |
| Noise | 92 dB below +10 dBm |
| Distortion | ≤ 0.15% at +10 dBm into 600 Ohms |
| Amplifier response | Flat, 20 Hz to 20 kHz, +/- 0.5 dB |
| Tubes | 1 ea 12AU7, 12AX7, 6X4 |
| Finish | Pultec blue |
| Built | By hand, to order, in Fort Collins, Colorado |
Good to know
- Rack-mount unit for a standard 19-inch rack.
- Hand-built to order by Pulse Techniques in Fort Collins, Colorado.
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