Projects > CAPI 553F 500-series EQ
Classic Audio Products’s latest offering is a slightly updated take on API 553 EQ, a lesser-known counterpart to the legendary 550. Though originally designed as a simpler, lower-cost alternative to the 550, the 553 is inductor-based and contains crucial elements of the “classic API” sound–a 2520 discrete op-amp, and the 2503-model output transformer. CAPI’s DIY version contains a few updates, including HPF and LPF filters, a balanced input stage, and new, Ed Anderson-designed inductors.
553F Features:
- 3-band inductor-based EQ operation
- 100Hz low-band, 2.7kHz mid-band, 10kHz high-band
- 2520 discrete op-amp balanced receiver and output stages
- MPP-core inductors and 2503 output transformer from Ed Anderson
- 30Hz / 70Hz / 110Hz HPF
- 12kHz / 22kHz / 28kHz LPF
- 500-series compatible (+/-16VDC power rails needed)
Price:
- $302.99 USD for complete kit
More Information:
- Available from Classic Audio Products, Inc
Category: 500/51x