Backert LabsRhumba 1.3 Extreme tubeusedBackert Labs Rhumba 1.3 Extreme tube  preamp preamplifierIf you're wondering how to make your system sound more engaging, you may want to consider the Rhumba Extreme 1.3. This review at may be helpful:

Backert Labs Rhumba 1.3 Extreme tube preamp preamplifier

Listing ID: lis9bcfi Classified 
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Time Left: 23 Days
New Retail Price: $6,500.00


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Payment methodsPaypal card
Ships fromHockessin, DE, 19707
Ships toUnited States
Package dimensions24.0" × 16.0" × 8.0" (23.0 lbs.)
Shipping carrierFedEx
Shipping cost$25.00
Original accessoriesRemote Control, Box, Manual
Agon miniAverage Research Pricing

If you're wondering how to make your system sound more engaging, you may want to consider the Rhumba Extreme 1.3.  

This review at may be helpful:


We make it easy to own a Backert Labs. First, you'll probably never need to change the tubes. This is because we run them extremely gently. It's also because of our auto-bias circuit, which you won't find in any other brand. If you're replacing the tubes in your Backert Labs, it's going to be for fun, to see what a new brand sounds like.


Fully-balanced XLR input and fully-balanced XLR output. Class A design. No negative feedback. Assembled by hand in Pennsylvania. The Rhumba 1.3 Extreme from Backert Labs is the last preamp you'll ever need. 

A tubed line stage using radically new technology that results in just 75 ohms of output impedance, which means it pairs nicely with any power amp. Internal wire by Kimber Kable.  A beautiful and heavy remote volume control.  10dB of gain. Uses just two 12au7 tubes. We use the premium Mullard reissue tubes, for even smoother highs and just a touch of beautiful warmth

Although our base Rhumba 1.3 preamp at $4,000 betters many preamps at significantly higher prices, the Rhumba Extreme preamp is indeed a serious upgrade to the base Rhumba, featuring many improvements, including the following 5 specific advances:

1. Our proprietary automatic and continuous tube biasing. Tube biasing is found on all *power* amps, but almost no preamps. The effect is that every tube you use in the Rhumba Extreme will last longer and will sound its very best at all times.

2. A cool blue LED indicating volume knob position in all light conditions

3. Dual-mono regulator in the power supply, for exceptional separation and imaging

3. A special circuit that addresses the volume control section of the preamp -- one of the most sensitive areas for preserving the integrity of the original source signal -- in a completely new way, making your music even more easy to enjoy at any volume level

4. Premium TerraCone feet, from edenSound which retail for $95 per foot, improving microdynamics and the sense of space in a recording

5. Upgraded polypropylene capacitors throughout the power supply, delivering more refinement and larger sense of scale and massivenss in works that call for it   

Comments from recent Rhumba Extreme purchasers:

  • "I began to neglect regular life as I renewed the joy of listening. I have heard instrumental details, special subtleties (most importantly with vocals) as if I had never heard some of my recordings before."

  • "There are details in the music and overtones of instruments that I have never experienced in over 40 years as an audiophile.  During part of that time I had a business interest in 2 high end audio stores and was able to audition some of the very best high end equipment ever made.  The Rhumba combined with my Pass amp produces the most listenable experience that I have ever had."

  • "I’ve received my Rhumba 1.3 Extreme.  I’ve been listening, all day yesterday & today. Holy Mother of Crap !!  Right out the box... compliments to the chef(s).  You've knocked this one out-of-the park, by a mile!  It sounds passionate, decadent, provocative, on-point/spot-on incisive... this Rhumba Extreme is just enthralling!"

    The Rhumba 1.3 Extreme can be had with silver or black front plate, a no-cost option. Body color is traditional black, or for $200 we offer stunning red and blue color options. The Rhumba 1.3 and  Rhumba 1.3 Extreme now feature a stereo-mono switch on the front panel. 

    The Extreme's tube access door gives you instant access for changing tubes, no tools required. Under the door, the protective enclosure around the tubes prevents young fingers from accessing the circuit board. 

    Standard features on every Rhumba:

    - Remote volume control actuating a fully analog ALPS control.

    - Three RCA inputs, one fully balanced XLR input.

    - Two RCA outputs, one fully balanced XLR output.

    - REC OUT, and Home Theater bypass.

    - Mute switch. Stereo/Mono switch. Balance control


    Full refund of your purchase price if you are not satisfied within 14 days.  And no need to worry - we break-in every Backert Labs preamp for at least 168 hours of playing time, so that you will immediately hear exceptional sound upon receiving your Backert Labs preamp.

    Questions? You can just write to us here. You'll hear back from our President, Andy Tebbe. 

    We are very proud of what we have achieved with the Rhumba Extreme. We can't wait for you to hear what it does for your system.

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