DUSSUN is de OEM (ORIGINAL EQUIPMENT MANUFACTURER) voor onder andere RedRose Music van Mark Levinson. Dit zegt al genoeg over de kwaliteit van DUSSUN als ontwerper en fabrikant van heel hoogwaardige audio-apparatuur.

De R 30 van Dussun is één van de beste, zo niet de allerbeste geïntegreerde transistor-versterker die er op de markt is.


R30 Hyper Class A Reference integrated Amplifier is a machine developed and handcrafted elaborately for re-rendering of full music spirit and connotation. Its Design Reference Benchmark is 'State of the Art Counterpart Hi-End Integrated Amplifiers' in terms of performance, tone, function, construction and fabrication.

Based on decades of experiences on research, development and handcraft for audio amplifiers by DUSSUN, every design step newly developed for and introduced into R30 aimed at the clear objective for sound quality and tone improvement, resulting in delivery of high fidelity music signals extremely close to original music source and characteristics of speakers utilized, in perfect, nearly full accordance.

For matching characteristics of different loudspeaker types as close and universal as possible the design of R30 went through a long time repeated audition, measure and improvement process, which made the finished R30 achieve the ideal matching level for signal amplification circuit, volume control circuit, power supply system and interior construction.

In addition to the technical specification for a hi-end amplifier deserved, R30's sound possesses outstanding quietness, rich details, dense timbre as well as transparent and spacious tone. It escorts the audience to rediscover the performing atmosphere and rich sound spatial information from those familiar CDs which missed before.

R-30, made under the principle of uncompromising, so became the first reference level integrated amplifier in DUSSUNs' product family by means of high performance and outstanding sound quality.

6.600,00 5.275,00 U bespaart: 20%


No. of Input Groups RCA:

No. of Input Groups XLR balanced:

Input Impedance:

Voltage Gain:

Gain Resolution:

Volume Control Range:

Line Out / Recording Output:

Rated Output:

Frequency Range:

THD + Noise: 

S/N Ratio:

Output Impedance:

Remote Control:

Power Consumption:

Power Supply:

Environment Temperature:




Shipping Weight 



50 kâ?¦

6, 12 or 18 dB in line stage

0.1 dB steps above 31 in display (-50,0 dB)

80.0 dB


2x200W at 8â?¦ Class A, 2x 360W at 4Ω, Class A

20Hz-20kHz ± 0.5dB

≤ 0.3%

≥ 105 dB, A-weighted

≤ 0.07Ω, A weighted

Infrared, in alumina enclosure

1500 VA max.

 A/C 110V/60Hz, 220±10 V / 50-60 Hz




440x197x500 mm, WxHxD

36.5 kg approx.


The R30  beside others in its design offers the following highlights:

High precise volume control in 0.1dB steps with left and right channel fine-synchronized:

Considering the volume control device is one of the souls of an amplifier, R30 employes a DUSSUN- developed volume control device, which set up by a 16-bit performance, digital controlled analogue circuit and possesses 1/65,535 level superfine resolution within whole volume control range.

This volume control comprising circuit high linear solid state switch and precision resistors, ensures precise synchronization of R30's left and right channel volume control at any position within its 80 dB volume control range.

It practically eliminates all the problems such as  sound quality degradation, application intervention from frequency and phase distortion, volume synchronization errors, sliding friction noise, limited lifetime attribute of traditional volume control potentiometers, various voltage ratio, and so on.

No matter whether working principle or practical performance, as a fact the R30 reached the highest technical level fully among the state of the art hi-end amplifier volume control and takes part  "Club of 0.1 dB volume control'.

Power output stage with low distortion, non-feedback at power output terminal:

The new designed "Optimized Self-Adaptive Bias Circuit", much different from routine design where output stage feedback always leads to large non-linear distortion especial at high frequency side, improves significantly linearity in output stage signal crossover region, while maintaining large power output without switch distortion. By adopting this system R30 accomplished super low crossover distortion.

Along with the most nature and spacious tone from a "non-feedback at output terminal amplifier'', R30 achieved the perfect result of full power output, low distortion, high sound quality in whole audio frequency.

Thorough independent dual-mono channel design:

R30 left and right channel circuit as well as control units are equipped with individual independent power supply systems. Data used to control individual channel is transmitted optically.

Absolute electric isolation made R30 is true to its name, dual mono channel amplifier, working same as two sets of precisely synchronized independent mono channel amplifiers, with nil stereo crossover between left and right channel, resulting in pinpoint accurate sound images.

Strong control and pre-set functions, such as:

  • Individually pre-set gain level for all input terminals

  • Individually pre-set channel name for all input terminals

  • Display screen brightness adjustable for 4 levels

  • Maximum volume pre-set to protect expensive loudspeakers

  • Fade-in volume when switching on

  • Aluminum full function remote control unit

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