EQ / Preamp (Discrete-opamp preamp/buffer/boost + 3-band semi-parametric console EQ + harmonic drive (channel strip)) · $499
The Pettyjohn Electronics PreDrive3 is an analog discrete-opamp preamp/buffer/boost + 3-band semi-parametric console EQ + harmonic drive (channel strip) pedal based on the 990-style discrete opamp buffers; passive sweepable HPF/LPF; 3-band semi-parametric EQ w/ Fasel inductor mid; germanium harmonic-drive soft clipping, with Boost, High Pass (sweep), Low Pass (sweep), 3-band semi-parametric EQ (Low/Mid-inductor/High, each with level + 3-way frequency selector) controls, made in USA. From $499.
| Category | EQ / Preamp (Discrete-opamp preamp/buffer/boost + 3-band semi-parametric console EQ + harmonic drive (channel strip)) |
| Circuit / based on | 990-style discrete opamp buffers; passive sweepable HPF/LPF; 3-band semi-parametric EQ w/ Fasel inductor mid; germanium harmonic-drive soft clipping |
| Signal | Analog |
| Controls | Boost, High Pass (sweep), Low Pass (sweep), 3-band semi-parametric EQ (Low/Mid-inductor/High, each with level + 3-way frequency selector) |
| Switches | Harmonic Drive toggle (germanium soft clip), per-band frequency selector switches, Guitar/Bass version option |
| Footswitches | 1 |
| Bypass | true bypass (via buffer footswitch) / buffered |
| True bypass | Yes |
| I/O | Mono 1/4" in / Mono 1/4" out (output impedance <1k) |
| Power | 9-15V DC (custom booster to +-18V internal) |
| Country of manufacture | USA |