This might seem like a big change, but actually the sonics are preserved very close to the original, and tracking errors are cancelled. We did things like that to the SSL in the old days. Another change is that the sidechain is common to both VCA's, making better tracking abilities - your mix wont' "tilt" so easy when you're compressing heavily. The main changes concerns the electronically balanced input and output and the removal of unneded components regarding the autofade and main fader circuits.
#Ssl duende bus compressor series#
The SSL mixbus compressor is an integral part of the mixer's main quad fader and autofade system - cards 82E26 and 82E27, and as you can see if you compare these to my schematic, a series of changes have been made for rehousing the circuit.
The compressor is cloned from our good old SSL4044E desk, dating back from '85. The beauty of this design is that - contrary to a lot of other esoteric projects - the components are (relatively) easy available anywhere, and no special knowledge, tools or adjustments are needed.
#Ssl duende bus compressor pro#
This design is - as you'll see - quite simple, easy and economically reachable, so I thought it would make a fine DIY-project for people that know their soldering iron and wants to start building pro quality DIY audio equipment. But the SSL4000 desk is prized as to be out of reach for most small studio owners. My reason for doing this clone is that the SSL is one of the worlds widely recognized stereo mix compressors - it has a well known sound, and is lusted after by many recording engenieers. But it has a nice moving coil meter at least.
And sorry, this design is absolutely free from tubes and transformers. This is a design I did way back in my early years, so you'll have to bear with the ugly pcb layouts. SSL Clone construction page The SSL Clone
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