TL Audio C-1 Dual Valve Compressor

TL Audio C-1 Dual Valve Compressor

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C-1 Dual Valve Compressor, Studio compressor from TL Audio in the Original Classic series.

5 user reviews
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TL Audio C-1 Dual Valve Compressor tech. sheet

  • Manufacturer: TL Audio
  • Model: C-1 Dual Valve Compressor
  • Series: Original Classic
  • Category: Studio compressors
  • Added in our database on: 07/05/2006

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TL Audio C-1 Dual Valve Compressor user reviews

Average Score:4.7( 4.7/5 based on 5 reviews )
 4 reviews80 %
 1 user review20 %

moosers's review

TL Audio C-1 Dual Valve Compressor
TL Audio's Original Classic Series C-1 is a dual channel preamplifier and compressor. The C-1 is valve tube based and it has 1/4" direct inputs in the front for each of the two channels, as well as XLR inputs and outputs in the back of it. It also has auxiliary connections. The components are all analog, and the C-1 is rack mountable, taking up two spaces in a traditional rack casing.


You've definitely got a lot of flexibility with the TL Audio Original Classic Series C-1 in terms of the parameters that there are to work with. Each of the two channels has the same make up, with preamp parameters for choosing either mic/line/aux, and for setting your line input gain. The compressor has setting controls for threshold, ratio, attack, release, and gain make up. There is also a button for a high pass filter at 90 Hz. Lastly, there's a gain control knob for your auxiliary input, and a button for using the two channels as a stereo pair. I haven't seen the manual for the C-1, so I can't speak to it's make up.


The tone quality of the TL Audio Original Classic Series C-1 is pretty incredible. The preamps are great sounding tube preamps, great for recording pretty much anything. It has a whole lot of bottom end response, which gives it a lot of body. The compressor sounds equally as impressive, with the same sort of body. You can really hit your signal hard with the compressor as well, as the ratio parameter goes up to 30:1! The unit as a whole is versatile enough where you can use it for any application where you'd want to add or have some nice tube edge.


I'd be hard pressed to find someone who didn't like the TL Audio Original Classic Series C-1. It's simply a great sounding tube channel strip, with more flexibility than most out there. This version hasn't been made for a while, so it's probably going to be hard to find this exact model. Having said this, if you can't find a C-1, TL Audio has an incredible line of gear across the board that's work checking out. I think most users will have a hard time finding a tube channel strip that sounds better than this...

KeZo's review (This content has been automatically translated from French)

TL Audio C-1 Dual Valve Compressor
What technology is used?
rack stro prampli transistor and compressor lamps.


Is the Gnrale setup simple?

yes you just connatre the parameters of a compressor, rglage threshold, ratio, attack, realease, outpout gain and that of a prampli: input gain ...

Vu meter practice, and there ame a stro link mode that facilitates rglage and the sidechain (I is not yet tested)
Conctique very complte.


Are the effects effective and sufficiently ADAPTS GPs?

This rack is really very good the warm spring dfini better with a very pleasant color and good dynamic I find (even if I is not had a lot of comparison)

What instruments do you use?

I use it on my two synths sound richer spring with high definition, a guitar sound is beautiful, I could not test it on a real bass but it promises dej those of my synth !! not yet tested not on a path unfortunately but it seems that it is very good on this source.

The perceived he is doing very well I think, even if he has a little trouble making very fast compression (like hit hat close) because the realease back a bit too slow but I ' not go up that it is mou.La beast of character and know how to make beautiful and very efficient compression than offsetting the latter mini default !!!

the prampli a lightweight lorcequ'on breath rises too in between (but not Drange, unlike a lot working in the digital almost good ^^)


Used for 3 months in the studio,

I put 10 because today the price is very affordable opportunity !!!

Really nice lorcequ'on investment looks the qualities and the happiness it brings I do not understand it to be as inexpensive (for the hardware "high end"), but you better its my license to buy it: D !!! just look at what it is compared rack ...

This rack is very versatile and I think it fits many source even if it Xelle on a guitar or bass track he does well on the job as drum even if there was better but still easily be added 500 euros ...

I remake that choice without hsiter for its versatility, are prices, and especially for its very good sound !!
doc benway06/02/2012

doc benway's review (This content has been automatically translated from French)" unnecessary"

TL Audio C-1 Dual Valve Compressor
transistor preamp and stereo compressor has believe that the lights do not affect the preamp which is a copy of a neve1073-the joke ...
for the preamp, it has a phantom power, 90Hz and has a hpf for a knob compressor for the adjustment of the threshold ratio attack release and gain makeup.
the two slices are linkable or not.
The settings and connectors are well think so.


no problem to use, everything is logical.


Sorry for this so-called copy of 1073, but the preamp are soft, with a breath from 55db, c is very disappointing! ca lack of bass, and presence of base relative to the good old transistor types telefunken.
the compressor does not catch up, nothing exeptional.


I have kept two years before selling.
well I'm picky because I compare it to the more expensive gear and better quality (ua610, telef676 and trident 8t for the preamp, 1178, and dbx160vu ssl clone for the compressor) but I see no interest to have this type of Becane ! the preamp is not very good, and c is stupid to say, but the compressor is better than a Plug-in! 2 buy as much good preamp and compress in the box ..
contrary to all advice, I find that it is not on the professional, c is certainly a good entry-level, or even semi-pro, but we must stop to compare it to the neve or something. A slice at BAE 1073, only preamp therefore, will sell 1000th, should not dream ...
after having tried the 5051 and 5001, I strongly inadvisable tlaudio.

azertyvince's review (This content has been automatically translated from French)

TL Audio C-1 Dual Valve Compressor
Everything is already said.


Nothing more to say.


I use it on guitar and vocals taken.

The sound is exceptional.
The compressor did a good job.


I already have a preamp SPL Channel one (with compressor)
the sound of the C1 has nothing to do.
The sound of one channel is super accurate, very hot, with very deep bass.
The sound of the C1 is fairly balanced, perhaps less accurate, but its great characteristic is that he puts in his life, it's pretty amazing.
it sounds, sounds of home!
Actually as some say, one can find that it's a sound typed English.
But he spends a lot of style, no problem, given the life he makes a mess, it would be a shame to pass.

yes Mosieur.

the +: the sound
the -: the meters are a bit crappy, I confirm.

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