• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join freeLog in
    Want zero display ads or expanded classifieds tools? Compare plans.

very strong hunch about the ISET sandwich compressor

I picked up the ISET sandwich compressor a while back for next-to-nothing. I will admit that i bought it because it was tiny and yellow and had a sandwich on it.

iset sandwich.png


It immediately set off my spidey sense when I played through it. Especially on the half-pint setting. Especially at 15v rather than 9v. It reminded me very much of another yellow compressor that likes to run at 18-24v. and was very popular and marketed for bass guitars. Except the sandwich is way smaller.

All of the internet videos I have seen about this compressor are wrong about the full/half pint switch. It's not "half compression" (whatever that might mean). half-pint lowers the frequency center of the EQ to work nice on a bass guitar. Adds a sprinkle of magic there. Just like another yellow bass compressor with a 3 knobs and a switch.

So I popped it open and had a look at what is inside:

iset sandwich gutshot.jpeg


that's a vactrol in the lower right and the same number of opamp chips as the popular yellow optical bass compressor in question. i haven't traced the circuit to verify for sure or anything but I have a pretty strong hunch that I know what this is based on, and it's an old favorite.

anyway just a PSA that these cheap little compressors are actually good on bass. for sure there are better compressors out there these days, but for the size and money it's not a bad option. I would definitely run it at more than 9v if you do get one.
 

Attachments

  • iset sandwich gutshot.jpeg
    iset sandwich gutshot.jpeg
    127.5 KB · Views: 59
  • Like
Reactions: D0rk1n and BEADist
Came across this post while waiting looking for reviews on the iset sandwich comp. Bought this a couple of days ago coz I need a cheap comp and yeah I was sold when I saw the sammich print lol! I thought of the same idea about the half pint when I saw the picture. I was like if a guitar comp is normally too squishy for bass, maybe the half pint switch is intended for bass guitars? I’ll find out as soon as I receive it.