Pultec EQP-1S EQ Single-Channel Tube Equalizer with 3U Chassis

In 2014, due to customer demand, Pulse Techniques brought back into production the 3U EQP-1A program EQ. Many of our clients prefer the look and layout of the larger unit to that of the 2U EQP-1A3 and the EQP-1A has become one of our most popular units. Almost immediately after announcing the return of the EQP-1A, we started receiving requests for the EQP-1S, the 3U version of the EQP-1S3. For those not familiar with the (formerly) extremely-rare EQP-1S/EQP-1S3, these products have the same wide-bandwidth line amp as the EQP-1A/EQP-1A3 units, but have modified low-frequency boost/atten response curves, add 2 additional peak boost frequencies, and most-importantly add 2 high-frequency shelf boost curves to the sonic palette. 

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• 30, 40, 70, 100 CPS shelf boost, 0 - 13.5 dB
• 30, 40, 70, 100 CPS shelf attenuate, 0 - 17.5 dB
• 1, 2, 3, 4, 5, 8, 10, 12, 16 KCS peak boost, 0 - 18 dB
• 5, 10 KCS shelf boost, 0 - 14 dB
• 5, 10, 20 KCS 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: Flat, 20 CPS to 20 KCS, +/- 0.5 dB
• Tubes: 1 ea 12AU7, 12AX7, 6X4