Unitra WSH-805 Classic Edition Integrated Amplifier
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Unitra WSH-805 Classic Edition is a refined reinterpretation of the brand’s flagship dual-mono integrated stereo amplifier, inspired by the golden age of 1970s hi-fi. Retaining the original model’s acclaimed audio architecture, signal-path topology, and full sonic capabilities, the Classic Edition elevates its timeless appeal with elegant wooden side panels and distinctive brass accents. The result is an amplifier that blends vintage character with high-end engineering—designed for listeners who value both authentic analog performance and enduring, classic design.
Timeless Design
We wanted to create an amplifier that will stay with you for decades.
That is why we were inspired by the 70s, which were the golden age of stereo audio technology. The canon of analog stereo amplifiers was created then, which has survived to this day with minor changes. We decided not to compromise and to draw directly from the source - hence the timeless look of the WSH-805 amplifier.
The Classic version also features side panels made of natural American walnut, which give the device warmth and nobility. Brass switches, details in gold deflection indicators emphasize the attention to craftsmanship and the authentic character of this design. Such changes are not only aesthetics - they are elegance, loftiness and an expression of respect for the hi-fi classics, which make the amplifier not only a tool for listening to music, but also a unique utility object with a soul.
Timeless interface
The interface using pivot indicators and bistable switches in a new iteration in our patented automated version - an unmistakable beauty with added functionality and convenience.
Durability without compromise
Because we want our amplifier to serve you for years, we built it ourselves, without compromise, from the highest quality components. As a result, we got a powerful amplifier weighing 18,5 kg, consisting of 1586 components enclosed in a massive, metal housing with wooden side panels in the Classic version.
All-analog stereo integrated amplifier
The inspiration for the WSH-805 was the legendary Unitra WSH-205 amplifier, little known in Poland because it was so good that it was mostly produced for export. In our estimation, it represented the pinnacle of our stereo audio technology. Inspired by this leading representative of the golden era of analog stereo of the 1970s, we created it anew, improving everything that could be used with modern advances , but leaving the main concepts. That's why the WSH-805 is fully analog, with no digital signal processing elements that can interfere with the original sound of the original analog signal.
Dual-mono architecture
Each channel uses a separate preamplifier and power amplifier to ensure the best possible channel separation.
Current Feedback Topology
While being more challenging to implement, this topology offers improved performance in terms of dynamic range and feedback.
Power block reinvented
A proprietary power block based on discrete circuits - a unique sound that differs significantly from that in devices based on "off the shelf" integrated circuits.
Clear and distortion-free sound
The solutions used made it possible to achieve a signal-to-noise ratio of more than 100 dB, providing exceptionally clear sound without noise.
Very low distortion levels: harmonic distortion (THD) 0.0008% at 1 kHz / 8 Ω / 40 W and intermodulation distortion (IMD) 19 - 20 kHz at 10 W < 0.0015% will allow you to hear sound without tonal blemishes, so reproduced exactly as the artist intended.
Changing the class of work
A unique feature of changing from Class A to Class AB operation with a dedicated switch on the front panel gives you the choice between maximum efficiency translating into loudness or maximum linearity of operation.
Traditional and balanced analog inputs
A rich set of RCA inputs, plus a pair of balanced XLR inputs for the most discerning analog audio enthusiasts, so they can connect the signal source in a way that minimizes the impact of interference from the source to the amplifier.
Phono preamplifier with cartridge type selection function
A dedicated phono preamplifier with a choice of MM or MC modes allows connection of any cartridge currently available on the market.
Built-in headphone amplifier
Dedicated low-impedance headphone amplifier allows you to connect Hi - End class headphones directly to the amplifier. Thanks to the optimally selected parameters, each pair of headphones plays in optimal conditions for each other.
Product specification
RMS Output Power
Class AB, 8 Ω
80 W
Class AB, 4 Ω
125 W
Class A, 8 Ω
8 W
Class A, 4 Ω
16 W
Inputs
RCA: Aux 1, Aux 2, Tuner, CD, Streamer, Phono + GND (MM / MC), Direct In; XLR: Balanced
Outputs
Speaker terminals: A / B / AB; 6.3 mm Headphone Output; Pre Ou
Power Amplification Specifications
Total Harmonic Distortion (THD)
< 0.0008% (40 W)
Frequency Response
6.3 Hz to 110 kHz (–3 dB)
Signal-to-Noise Ratio (SNR)
SNR 102 dB
Channel Separation
> 100 dB (dla 1 kHz)
Intermodulation Distortion
19 + 20 kHz @ 10 W < 0.0015%
Adjustments
Bass
Treble
Contour (smart adaptive contour)
Linear (tone control bypass)
Balance
Other
Dimensions
440 × 385 × 143 mm (17.3 × 15.2 × 5.6 in)
Weight
18 kg (39.7 lbs)
Gross weight
22 kg (48.5 lbs)
Package Contents
Power cord, remote controller with battery, owner’s manual, warranty card
Unitra WSH-805 Classic Edition Integrated Amplifier