TL Audio 2001 4 Channel Valve Mic Pre Amp
TL Audio 2001 4 Channel Valve Mic Pre Amp

2001 4 Channel Valve Mic Pre Amp, Tube Pre-amp from TL Audio in the Indigo series.

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All user reviews for the TL Audio 2001 4 Channel Valve Mic Pre Amp

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Average Score:5.0( 5/5 based on 2 reviews )
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rilax's review (This content has been automatically translated from French)" Good!"

TL Audio 2001 4 Channel Valve Mic Pre Amp
4 channels. For a channel preamp gain, volume, a potion low cut, phase reverse.
Purely analog.
1 U rack

Microphone inputs and 2 outputs / channel. 1X jack-10dB and +4 dB XLR 1X usable simultaneously.

Entries in combos Jack / XLR mic / line / instrument and it was a dream come true with 10/10 :)


Simple Config? completely!
The manual is findable on the net at this link:


A very good sound that can be orientated according to its channel use.
Example: In the first 2-channel I 2 lamps mounted typed with a "nice" saturation (if desired!) For use via DI and recording guitar AND bass.
Channels 3 and 4 I mounted two lamps operating in pairs and equivalent but more transparent for overheads records gains.

The two types of configurations give VERY good results!


Used for some years now, I had a TL Audio 5050 Mono Mic Pre-Amp/Compressor and wanted to have more input.

Changing lamps can choose nervousness channel and the operation is easy.

+ + +: No breath and gain! (Comparison made with other preamp (MOTU, consoles, sound card ..)

---: The DI inputs on the preamp would be welcome for a small fee but it adds ...

If I found myself one and if I needed 4 additional inputs, I buy!

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

TL Audio 2001 4 Channel Valve Mic Pre Amp
1U mic preamp (no line-in) hybrid lamps (one per channel memory supplied with 150V) manufactured in the 90s.

extremely simple to use:

gain with clip indicator LED, a volume gain to handle as desired without going too much into one A / D converter for example.

three switches: 48V, 90Hz high pass to, and the phase

XLR inputs, outputs and XLR jack

one diode to the level is just a little bit but your ears are not there for that?


We can not be simpler.

it adjusts the gain for the desired tone color and adjust the volume so as not to saturate the input stage of what is hooked up to more.


The sound is very respectable given the price per preamp (okaz of 300 euros, that's 75 euros a preamp!). It has a sound much less aggressive than the preamps a O2R example. The saturation of the tubes reaches the end of the race winning pots and must be dosed slowly failing to have an effect too strong (unless this is the desired effect).
I use it when I need a lot of preamp at a time and the results on guitar amps with a SM57 is really surprising.


Pendant ivory replaced by the series that I have not tested. I do not throw myself into the debate classic old and new series.

Is (very rarely) to okaz and is a very good deal for anyone looking to rapidly increase its fleet of low-cost preamp for a very persuasive.