Deals and Closeouts

Rhumba 1.4 tube preamp: $4,300 — full details here

We are selling a lightly used Rhumba 1.4, the latest incarnation of our most affordable tube preamp, for $4,300 plus $40 shipping to anyone in the continental U.S. — see photos below. As-new, perfect sonically and physically, full 3-yr warranty. Call us with any questions, 302-723-7549.

edenSound “TerraCones” feet upgrade for Rhumba 1.3 and Rhumba Extreme 1.3

used on our Rhythm 1.3 preamps
threads on the chassis side to secure each foot to the bottom of your Rhumba
in like-new condition, set of three, $240 ($80 each) (the set pictured below)
in used condition, set of three, $180 ($60 each)
shipping $9.00

These will add surprising micro-dynamics and resolution to your Rhumba 1.3.

Threads on bottom are 1/4″ — make sure your Rhumba or Rhumba Extreme has three 1/4″ holes on the bottom panel, which are located next to (or possibly under) the regular feet.

Note: these should not be tightened down much. Best sound comes with them screwed “barely tight” against the chassis.

To purchase: call Andy at 302-723-7549 or write to us at info@backertlabs.com

edenSound “HemiSpike” feet upgrade for Rhumba 1.3

originally used on our Rhumba Extreme preamps
threads on the chassis side to secure each foot to the bottom of your Rhumba
used but appearing in nearly-new condition, set of three, $48 ($16 each)
shipping $9.00

These will add a nice level of resolution to your Rhumba 1.3.

Threads on bottom are 1/4″ — make sure your Rhumba has three 1/4″ holes on the bottom panel, which are located next to (or possibly under) the regular Rhumba feet.

Note: these should not be tightened down much. Best sound comes with them screwed “barely tight” against the chassis.

To purchase: call Andy at 302-723-7549 or write to us at info@backertlabs.com

_{At Backert Labs we build our tube preamps in Pennsylvania using aluminum chassis machined for us in the USA, circuit boards made in the USA, and designs crafted by Bob Backert in Pennsylvania. We make no other products and focus 100% on tube preamps. We patented Bob Backert's GreenForce power supply in 2012 and use it to power every preamplifier we make. Every preamp we make also features a tube access door that gives immediate, easy access to your tubes with no screws. For those who are not experienced with tubes we make it easy to own a Backert Labs, with 4 separate technologies that extend tube life, so you will probably never need to think about the tubes in your preamplifier.}

_{Our preamps work well with any power amp, whether it is a solid-state power amplifier or a tube power amp, because we have exceptionally low output impedance and our other parameters are very much middle of the road. Our tube preamplifiers are made with no screws showing and no vent holes, to emphasize the clean design of our chassis. In our linestage preamps, we only use 2 tubes, which are 12au7 and of course any 12au7-equivalent, which means that it is easy and affordable to experiment with different tube brands to achieve the sound you are looking for because the 12au7 is one of the most plentiful vacuum tubes on the market. .}

_{For those who are curious about the advantages of solid-state vs. tube designs, we have created a Preamp Blog that addresses many different questions, including whether it's good to use a solid-state power amp with a tube preamp. The Blog also talks about which tubes sound the best, and whether it's necessary to learn about NOS tubes in order to get the best sound quality. We believe the best tube preamp in the world is one which allows users to experiment with vacuum tubes *or* to simply listen to music without even thinking about vacuum tubes, if that is the user's desire.}

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