Vintage Tube Equalizer

The 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 were not sure if we wanted to build an exact replica of the EQP1/A or the popular MEQ-5. In the end, we opted to build a fusion both equalisers into a single unit, thus adding the coveted mid-section of the MEQ5 (200hz to 7khz) into the EQPQ/A, 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.


With the aid of a premium Cinemag input and an inter-stage transformer as well as a Sowter output transformer, Cinemag 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.


If you’ve used an original before, we’re extremely confident the SA-EQP1A will put a big smile on your face every time you use it. However if you’ve never touched the original before, as gear-lovers ourselves we understand that the only way to really know if a piece of gear is for you, is to put it through it’s paces. That’s why the comes with a 30 day money back guarantee. This allows you to get it into your rack and see how it impacts your recordings. If you love it (and we think you will!), great… keep the unit and create amazing music with it. If not, no problems. Just send it back to us and we’ll fully refund your purchase. Don’t worry, whichever way you decide to go we will remain friends.


Stam Audio Engineering products are about sound quality first and foremost. Every component of every unit is premium quality and carefully selected to ensure our units match or even surpass the quality of high-end boutique gear.

So when you see the price for the SA-87 your first thought will probably be: “how is this possible?”

We have made the bold decision to bypass distributors and retailers and use the typical 30% margin on quality components. Whilst we inherit a slightly smaller reach without distribution, we conversely can afford to have a large budget for parts, allowing us to build a better product at a better price than any alternative offerings across all of our product range. Better components mean better recordings

That said, how much will a SA-EQP1A set you back?

The stock price for the SA-EQP1A is $999US.

Right now though, if you put a $200 deposit down to pre-order your unit you will get the discounted price of $899.00 and only 799.00 if you are on the first 100 to reserve.