Two iconic tube EQs in one piece of hardwareThe SA-EQP1A is one of our most ambitious projects to date. Until now, there hasn’t been any comparable product that would truly respect the sound and legacy the iconic tube EQ has been offering since the 50’s. That is, at least not without a hefty price-tag.
At the beginning of the project, we weren’t sure if we wanted to build an exact replica of the EQP-1A or the popular MEQ-5. In the end, we opted to build a fusion of both equalisers into a single unit, thus adding the coveted mid-section of the MEQ-5 (200Hz to 7kHz) into the EQP-1A, in a manner that that carefully respects the ratios and frequency response of the timeless classic.
Our version uses the exact circuit topology, with the option to add or bypass the mid-section of the popular Pultec MEQ-5. Unlike other replicas, we didn’t settle for two transformers (input/output) and decided to respect the original three transformer configuration using an inter-stage transformer: a critical component to obtain that superb low-end, silky high-end and tonal shaping heaven, with the added bonus of making the unit even more stable, providing a consistent performance and a lower noise-floor. Every single knob thoroughly follows the ratio and frequency response of the classic unit, but we also added an output gain dial so that two units can be matched with ease for stereo operation.
The SA-EQP1A is built with premium componentsWith the aid of a premium input and an inter-stage transformer as well as a Sowter output transformer, inductors, JJ tubes and a fully discrete class A circuit with premium Vishay capacitors, we accomplished our goal: to offer the authentic sound palette and complete functionality at an affordable price.
The timeless technique of boosting and attenuating at the same time, to make use of the unit’s sweet EQ curves, can now be in your hands, and in your studio.
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