Stam Audio SA4000+ by IzzyRock
Last week I had the chance to test the SA400+ at my studio. I have own the SA4000 for almost 2 years and was quite interested in hearing what differences it could bring to the table. The mod which is quite popular in other units adds 2 Carnhill output transformers to the signal chain with a class AB output buffer.
I passed some drums through the unit with the mod engaged and all though it was subtle it was obvious what it did to the mix (in a good way), it added deepness, sub harmonics and low end, this is probably all coming from the transformers which is like the low end you can find on the 1073 units and these frequencies are hard to emulate with EQ. I also tested the mod with a full pop mix and the results were the same as with Drums, I really appreciate what it brings to the table and although I was already happy with the standard SA4000 I would certainly choose to have both options, is not only nice to have at the ease of a toggle switch but it also gets me closer to the final mix.
I think I will leave the switch on all the time for future mixes.