Musica Bella Audio

06/19/2026

The Segue is back as a production product and now in a v4 configuration. The perfect solution for those systems not in need of a high gain front end. Beautiful match with most tube amplifiers of any type. Now accepting orders.

06/18/2026

Taking Orders.

The Harmonia JR is a perfect choice for those not needing balanced connections.
The Harmonia v4 has a set of balanced inputs along with 3 sets of transformer coupled RCA inputs and a set of balanced outputs along with 2 sets of transformer coupled RCA outputs.
Www.ResponseAudioNY.com

06/16/2026

Desiring the distinctive DHT sound without sacrificing your high-power amplifier? Simply insert your preferred DHT tube, connect your source components, and link the Harmonia to your preamplifier or integrated amplifier. The Harmonia does not employ a cathode follower circuit, as this would compromise the full sonic potential of your DHT tube. Would you wish to forgo the sonic excellence of a WE300B tube or your favorite 45 or 2A3 tube? The Harmonia unlocks the full potential of any installed tube and it’s the only component of its type in the industry.

06/15/2026

Running a pair of reissue Western Electric 300B tubes in the Harmonia v4 running into a Raven Audio integrated amplifier.
If you know the WE300B, you can only imagine the midrange magic I’m hearing.

06/15/2026

06/15/2026

New product lineup for 2026/27. After 30 years, Musica Bella will discontinue its custom-designed builds. We are now focusing on our production lineup, which will enable upgraded internal components at time of ordering.
Our products include:
- Anniversary Edition Reference preamplifier, a proven design that has been amazing music lovers for over a decade. With its new enhancements, it’s sure to amazing audiophiles and music lovers for decades to come.
- Anniversary Edition MB300H Hybrid GaN FET amplifier,
- MB300HM Hybrid GaN FET mono bloc amplifiers (not pictured),
- Segue v4 buffer preamplifier,
- Harmonia JR DHT output stage. The industry’s only DHT output stage.

06/14/2026

On display is the Segue Preamplifier and Harmonia Jr DHT output stage.
The Segue has been a highly regarded piece, pleasing audiophiles and music enthusiasts since its introduction as a custom-built product. It is now being housed in an aluminum chassis, allowing for upgraded builds.
The Harmonia Jr DHT output stage is shown below in its final build configuration with a gain control. Future production runs will no longer incorporate a gain control, as this component is designed to add DHT richness to solid-state source components in your system.
The Harmonia Jr can use 45, 2A3 or 300B tubes. Shown below with 45’s.

Both units share the same chassis. Details: https://responseaudiony.com/

06/04/2026

Coming Soon

05/27/2026

For sale: grab this Last First Gen Harmonia JR. DHT Output Stage with gain control. Can use 45/2A3 tubes. New series & chassis coming. Actual unit for sale in picture. Video and additional pictures in comments. Will supply 1 pair 2A3 tubes.
$2695

Details:

We offer several ranges of tube equipment for Audiophiles & Music Lovers. "Build your system for yourself, not the critics"

05/26/2026

For those who like to restore old tube amplifiers. Here is an old RCA RS199B EL84 stereo amplifiers. Sold as is. I have never powered it up.
Asking $150 shipped. Message me if interested.
The Cobalt blue version was my plan of attack. Generated by AI

Audio Performance Specifications
Power Output: 3 to 5 Watts RMS per channel continuous.
Operating Class: Pure Class A (inherent to single-ended operation), meaning the output tubes are biased to conduct current continuously through the entirety of the signal cycle.
Frequency Response: Typically 40\text{ Hz} to 15,000\text{ Hz} (\pm 2\text{ dB}).
While the 6BQ5 tube is capable of wider bandwidth, the frequency response is physically limited by the core size and interleaving of the compact, stock RCA output transformers visible on the right side of the chassis.
Output Impedance: Hardwired output secondary taps designed primarily for 4 ohm or 8 ohm console speaker arrays.