Affiliate disclosure: the "Get this deal" button is an affiliate link to the store. If you buy through it we earn a commission at no extra cost to you. Full policy
The tube tech CL 1B Mk II Black Friday deal from Softube takes 65% off this opto compressor plugin, so it costs $69 until Nov 8, 2026.
It is a two-in-one plugin that holds both the CL 1B Mk I and the CL 1B Mk II. A Generation Switch toggles between the two sounds without leaving the interface.
Softube says the Mk II is a ground-up sonic remodel of the Mk I, built on a decade of advances in experience and technology.
It is Softube's model of the Tube-Tech CL 1B, an optical compressor the maker calls a modern classic and a hip hop hero. Softube says its warm, musical opto gain reduction suits genres from classic rock and pop to rap, hip hop and EDM.
The maker pitches it mainly as a vocal compressor. It also lists bass, guitar and drums as targets, and says you can beef up drums, smooth and warm vocals, or enrich bass in seconds.
The hardware was remodeled from the ground up with component modeling and signal processing technology, according to Softube.
Opto compressors tend to grab hold quickly, then take a while to fully reset. The release curve is strongly exponential.
That means transients are dealt with transparently. The larger body of the signal gets a soft, musical levelling, because the final ten or twenty percent of the gain reduction lingers until the next transient arrives.
Softube points to bass, acoustic guitars and vocals as the sources where this behaviour pays off.
Softube's partnership with Tube-Tech goes back to 2006, when work began on plugin versions of the Danish company's analog hardware. In 2018, Softube released Mk II versions of the CL 1B and Classic Channel, with new graphics and extra features.
Softube also lists the Tube-Tech SMC 2B Multiband Compressor plugin and the Tube-Tech Complete Collection 2 among its Tube-Tech releases. The CL 1B Mk II sits in the Tube-Tech Compressor Collection.
Yes. The Black Friday deal takes 65% off the Tube-Tech CL 1B Mk II compressor plugin from Softube, bringing it to $69. The offer runs until Nov 8, 2026.
You get both the CL 1B Mk I and the CL 1B Mk II in one interface, plus the Generation Switch for toggling between them. It is also Console 1-ready, as a native plugin or in the Console 1 Mixing System.
The Generation Switch lets you toggle quickly between the sound of the Mk I and the Mk II. Softube says the Mk II is a ground-up sonic remodel of the Mk I, so the switch lets you hear both versions on the same track.
Softube positions it first as a vocal compressor, with a warm, musical opto gain reduction. It also names bass, guitar and drums, and says it suits genres from rock and pop to rap, hip hop and EDM.
Prices and end dates are checked at publishing time and can change, so confirm them at the store before you buy.