High-End Headphone Amplifiers, handcrafted in Europe

RudiStor Sound Systems designs and builds reference headphone amplifiers, DACs and accessories for the most demanding audiophiles. Every unit is hand-assembled and individually tested by RudiStor R&D Labs.

Low Distortion Series

Op-amp precision front-end with Class A single-ended output — our lowest-distortion designs

NX-03 Class A

NX-03 Class A not available

NX-03 Class A headphone amplifier

US $ 790 Read more →
NX-33

NX-33 not available

Balanced Headphone Amplifier - Class A-

€ 950 Read more →
DAC-X3

DAC-X3 not available

Digital to Analog converter with integrated "Class A" headphone output

US $ 1,330 Read more →

Single-Ended Class A

The current single-ended Class A line — tube E-OTL hybrids (RP5.3, RP8K-VT, RP-9) and the discrete JFET RPX-38

RP5.3

RP5.3 not available

Vacuum Tubes input, Solid State Current Output

€ 999 Read more →
RP-9

RP-9 not available

RP-9 E-OTL The Ultimate E-OTL Headphone Amplifier - (Vacuum Tubes input, Solid State High Current Output)

US $ 2,150 Read more →
RPX-38 DualMono

RPX-38 DualMono not available

RPX38 new generation ClassA DualMono Amplifier

US $ 1,400 Read more →

Discrete Balanced Reference

Fully balanced, all-discrete transistor amplification — Quad Mono topology

RPX-308

RPX-308 not available

RPX 308 Quad Mono headphone amplifier*

US $ 2,800 Read more →
RP030

RP030 not available

10 years ago, before the formation of RudiStor sound systems, was designed, for the personal use of the designer, the RP010, a year after it became the flagship of the Company, during the years it had many improvement and external transformations, the last was in 2010 when it changed name and look, becoming what is the actual RP030.

US $ 4,500 Read more →

Tube Balanced Flagship

The no-compromise balanced vacuum-tube line

RP1000

RP1000 not available

Amplifier" indicates just that this beauty was made cost no object,

Price on request Read more →
RP-2000

RP-2000 not available

"Rudi Stor legacy concept amplifier"

Price on request Read more →

Product History

RudiStor has been building headphone amplifiers since 2004. Discontinued models stay visible alongside the current line-up — trace two decades of product evolution on the Product Timeline.