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Solid State version of the 1A3 with API 2520 op amps

In addition to our faithful recreation of the original vacuum tube make-up gain EQP-1A3, we have also recreated the EQP-1A3 version based on the legendary API 2520 op-amp. Specifications: Input Transformer: 600 OhmsOutput Transformer: 600 Ohms Noise: Below -80 dBmDistortion: ? 0.15% at 10 dBm into 600 Ohms Amplifier: 20 CPS to 20 KCS; +0, -1 dB ref 1 KCS including input/output xfmrs Output Level: +21 dBm maximum