Three band tube equaliser SEQ3 is the best choice for your recording and mastering studio. It is based on famous Pultec EQP-1, but it is just not a copy.
Input and output are galvanically isolated by our high-end trasformers, which are responsible for elimination of ground loops. If needed, ground can be connected to output XLR connector by a switch (like on NAT3 studio preamplifier).

LOW band has typical separated cut and boost controls so you can do typical "low-end" trick if you want. Low frequencies have fixed steps and they are chosen very reasonable.
We added MID band control and this is a big advantage if you want to suppress muddy and boxy frequencies or you want to bring some presence in vocals. For MID band only one cut/boost pot is used. MID band section can be fully bypassed!

On HI band we added peak/shelving selection, which is again a big advantage of our SEQ3.

SEQ3 is only in mono, for stereo (mastering reasons) you have to use two equalisers, which we can pair for best L, R symetry.

Brief specification
- Tubes: 1x ECC83S, 1x ECC82S
- Number of EQ bands: 3, MID band can be bypassed
- LOW frequencies: 20Hz, 30Hz, 60Hz, 80Hz, 100Hz, 120Hz
- MID frequencies:: 300Hz, 400Hz, 600Hz, 800Hz, 1kHz, 2kHz
- HI frequencies: 3kHz, 5kHz, 8kHz, 10kHz, 12kHz, 16kHz
- Special option: Peak/shelving switch (only HI band)
- Input impedance: 10 kOhm, galv. isolated
- Output impedance: 600 Ohm, galv. isolated
- S/N Ratio: 75dB
- Mains: 230V, 50Hz (110V/60Hz on demand )