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The most powerful amplifiers ever developed by darTZeel.
NHB-468 monoblocks are the most powerful amplifiers ever designed and built by darTZeel. They are the culmination of nine years' research and development.
NHB-468 mono amplifiers retain all the musicality of the original signal. The NHB-468's immense power supply ensures that they can cover the full dynamic range, providing e... [more]
| Mono solid state amplifier | ![](images/mfr_logos/new/dartzeel.jpg) |
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The Orchestra displays stainless steel chassis with tubes mounted on ceramic sockets with golden pins. It has 4 power tubes mounted in push-pull which are driven by 2 ECC83.
This unit is the result of a very thorough study undertaken by Jadis with one main objective: to make a product with all the essential qualities of a high-end ... [more]
| Integrated valve amplifier | ![](images/mfr_logos/new/jadis.jpg) |
![](images/products/ORCHREF_web.jpg) | | Integrated valve amplifier | ![](images/mfr_logos/new/jadis.jpg) |
![](images/products/PA70-6.jpg) | | Stereo valve amplifier | ![](images/mfr_logos/new/jadis.jpg) |
![](images/products/progression_integrated_1.jpg) | | Integrated solid state amplifier | ![](images/mfr_logos/new/press-dandagostino-logo-full.jpg) |
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A new power device provides the foundation for an upgraded output stage. This new transistor, first used in the Relentless Mono Amplifier, extends high frequency response, increases power handling by a factor of four and features tighter tolerance gain matching between complementary NPN/PNP pairs. A wider safe operating area and superior gain linearity provides greater thermal stability through... [more]
| Mono solid state amplifier | ![](images/mfr_logos/new/press-dandagostino-logo-full.jpg) |
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Abundant power is required for realistic sound quality and is a cornerstone of Dan D’Agostino Master Audio Systems’ amplifier design. The Progression Stereo continues this practice. A graceful anodized Aluminum chassis houses a 2,000 VA power supply transformer coupled to nearly 100,000 microfarads of power supply storage capacitance. Paired to this foundation is a fully complementa... [more]
| Stereo solid state amplifier | ![](images/mfr_logos/new/press-dandagostino-logo-full.jpg) |
![](images/products/Ref160S_front_4web.jpg) | | Stereo valve amplifier | ![](images/mfr_logos/new/audio_research.jpg) |
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Listening to Reference 750 SEL monoblocks in a high performance system is a transformative experience; under total control, speakers disappear from the listening room and the listener is transported into a three-dimensional realm where music takes on a palpable, tangible form. Details from source material are resolved against a black background, painting images in space with vivid reality. Bass... [more]
| Mono valve amplifier | ![](images/mfr_logos/new/audio_research.jpg) |
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REFERENCE 75 SE
VACUUM TUBE STEREO POWER AMPLIFIER, 75 WATTS
The Reference 75 SE is a stunning amplifier in every way – performance, styling and reliability combined to elevate your music listening to a new experience. Capable of controlling a wide variety of speakers, the Reference 75 SE will transport you into the musical performance unlike any other comparable amplifier. A... [more]
| Stereo valve amplifier | ![](images/mfr_logos/new/audio_research.jpg) |