QUAD - PA-One + Tube Headphone Amplifier
QUAD PA-One + Tube Headphone Amplifier
Tubes in the Analog Output Stage, Reference ESS SABRE 9018 K2M DAC, and High-Res 384kHz PCM and DSD256 Support Make the Quad PA-One+ Headphone Amplifier a Major-League Star
A major league above its acclaimed predecessor and featuring re-engineered circuitry for tremendous frequency response and signal-to-noise ratio, the Quad PA-One+ tube headphone amplifier is all about sonic finesse – and the inimitable sound of the pairs of 6SL7 and 6SN7 tubes in the analog output stage. Stocked with balanced, RCA, coaxial, optical, and USB inputs to match with every listening source, it processes high-resolution audio up to 384kHz PCM and DSD256 by way of its reference-grade ESS SABRE 9018 K2M DAC. Two headphone outputs, including an XLR type for optimal performance, and USB 1.1 and 2.0 compliancy also come standard.
Pleasingly warm, efficiently powerful, and wondrously simple, PA-One+ can connect right into your computer or laptop. And rest assured that everything about this sleek British-designed unit process signals with a focus on accuracy, cleanliness, and ultra-low-noise performance. All true to Quad tradition.
Get the Best Out of Your Headphones
Quad PA-One+ is dedicated to achieving the best possible sound quality of any set of headphones connected to it. A whole host of connections, both analogue and digital driven by hi-fi amplifier valves bring an exciting detail to your music. With a nod to Peter Walker's styling and topology of his original valve amplification and superior quality from aesthetics to audio make a truly exquisite amplifier. The sound is full of life, yet without the unwanted coloration many would expect from such amplifiers. The genuine heritage of Quad has been preserved with all the features to enjoy modern audio mediums.
Classic Meets Contemporary
Quad engineers have relied on valve technology for Quad's trademark sound. Referencing the high standards set by the Quad II, valve amplifier as a benchmark, we're sure you can enjoy a level of audio fidelity which we have consistently delivered since 1936, this time packaged into a personal hi-fi experience. Carefully selected hi-fi amplification valves; 2x 6SL7, 2 x 6SN7, 1 x EZ81, allow the PA-One to deliver the latest technology in perfect harmony with traditional hi-fi.
True to tradition, the front panel is dominated by a large volume and balance control, while input select and impedance mode controls are in keeping with the rest of Quad's product range for a perfect match. The valves and electronics are housed in a Lancaster Grey steel chassis which is compact enough for a stand-alone space-saving setup, while it can also be an integral part of a high-end, large scale system.
Input Impedance: 50kΩ
Output Power: 500mW (at 32Ω)
Output Impedance: 32Ω~300Ω
Input Sensitivity: 500mW (at 32 Ω)
Frequency Response: 20Hz~20kHz (+0dB,-0.5dB)
Distortion: 0.5% at 1kHz
Channel Balance: ±0.5dB
S/N Ratio: 90dB
Vacuum Tubes: 2x 6SL7, 2x 6SN7
Digital Input Sampling Frequencies: 44.1kHz-192kHz, 384kHz(USB), DSD256(USB)
Input Jack: 3-pin balance, 1xRCA, 1xUSB, 1xCOAX, 1xOPT
1x standard headphone jack
4-pin balance headphone jack
1x RCA output
Dimensions (WDH): 7.1" x 10.6" x 6.4"
Weight: 15.4 lbs.
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