Stam Audio 4K-5+ 500 Series Bus Compressor

Stam Audio 4K-5+ 500 Series Bus Compressor

Marsoni

M251S

$690.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Stam Audio 4K-5+ 500 Series Bus CompressorThe legendary stereo buss compressor that will give your mixes glue and character With a lot of companies coming up with an affordable stereo buss compressor clone, we decided it was time to step up our game and take it to the next level. While we were proud of the first SA4000 units and still think they are great sounding machines, we knew there was something missing, and the best word to describe it was character. We set out to build the best

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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This is my second 51mm machine. I never used the included handle or basket… I kept my existing HUGH IMS precision basket and bottomless portafilter. The temp and preinfusion are set and not adjustable but fine (reduced variables). I defeated the shut off by volume by setting higher than needed (wish that was easier to turn off). I like to manually shut off when I hit 30g on my scale. The machine will drip since there is not solenoid valve so I just pull the scale from the try when mouse tail breaks and drip starts. The steam wand and hot water dispenser is a massive upgrade (from Capresso EC50) and the real reason for my upgrade. I would have paid $50-100 more for the improvements listed… but I guess most people would not so this is about the best option for me with 51mm (keeping all the 51mm three lug portafilter stuff I own). 5 stars = for me and the price

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Reviewed in the United States on April 18, 2026

Verified Purchase

angelo gaz

San Leandro, US

★★★★★ 5

Reliably makes a good cup of coffee!

Color: Rose Golden, Color: Rose Golden

This espresso machine is great. I wanted something simple and reliable and that’s exactly what it is. In fact, the espresso comes out with a nice creamy coffee froth on top and the flavor is excellent. I don’t normally write reviews, but I think this one is worth it and I want them to stay in business because I’ll probably be sending some of these out as gifts come next Christmas.

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Reviewed in the United States on April 1, 2026

Verified Purchase

walter Gmuer

Louisville, US

★★★★★ 4

Easy to use

Color: Silver

Easy to use compact and easy to set up pulls some great espresso shots

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Reviewed in the United States on February 24, 2026