Up to 15% Off Select Gear with code: ROCKSTAR
Looking for Coupons?Call us 800-449-9128 Hablamos Español
Accessories Sale 15% off qualifying orders $25 or more
SM Pro Audio Logo
Product 180203

SM Pro Audio SM TB 202 Twin-Channel Tube Mic Preamp

  • Write a Review

The Red Valve series TB 202 is a twin channel tube (12AX7) mic preamp that features independent switchable phantom power, phase reverse, -20dB pad, o...Click To Read More About This Product

We're sorry-this item is unavailable.

Find a similar product below or contact our experts for a recommendation of great alternatives. Call us at 800-449-9128.

Customers Also Viewed:

An excellent solution for clearer, more defined recording signals.

The Red Valve series TB 202 is a twin channel tube (12AX7) mic preamp that features independent switchable phantom power, phase reverse, -20dB pad, optical compressor, and fully functional EQ all housed together in a single 1U rackmount chassis.

Tailored for use in the home recording studio, the SM Pro Audio Red Valve TB 202 is perfectly suited for use as front end microphone inputs for your digital recorder or any other application requiring mic preamplification.

  • Panel Controls: Gain, 20dB pad, Phase Reverse, + 48V Phantom Power, Master Volume
  • Hand-tested 12AX7 tube
  • Class A transformless high voltage signal path
  • Switchable phantom power
  • Switchable phase reversal
  • Optical compressor
  • EQ circuitry
  • Input gain control
  • -20dB pad
  • 110v-240v external power supply
  • Size: 1U Rack
  • THD + Noise (un-weighted): 0.05%@0dB Tube
  • Drive: 10%@30dB Tube Drive
  • XLR impedance: 5k ohms 5k Ohms,
  • 1/4" High Z impedance: 1Meg ohms
  • XLR balanced output impedance: 51 ohms,
  • 1/4" TRS unbalanced output impedance: 51 ohms
  • Metering: 8 Segmented LED from -25dBu to +18dBu
  • Power Supply: Linear Supply, switchable--110V / 220V
  • Input: 17 VAC/1000mA
  • Weight: 2lbs.
  • Size: 1 U Rack
  • Dimensions: 8" x 6" x 1.75"
  • Mounting: Steel
  • Front Panel: Steel

Review Snapshot

by PowerReviews

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

Back to top


My Secret Weapon

By Circio

from White Marsh, Maryland

See all my reviews

Ask me a question

I've had this preamp for over 3 years and it's great for the money. The compressor is very subtle and easy to use. The single tube also has a subtle effect, but a warming sound. I run everything thru this unit before it goes to the harddrive recorder - helps to make the sources bigger. Not too many people own these, so I guess the cat's out of the bag.

Displaying review 1

Back to top

See All SM Pro Audio Compressors & Limiters
You are changing the Ship-To country.

Our product catalog varies by country due to manufacturer restrictions. If you change the Ship-To country, some or all of the items in your cart may not ship to the new destination.