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It began when the Audeze team met the legendary electronics designer Bascom King in his design lab. Bascom has designed acclaimed amplifiers for Infinity, Marantz, Constellation Audio, PS Audio and others. He demoed a prototype headphone amplifier that so impressed everyone that they signed Bascom on the spot to develop the new headphone amplifier exclusively for Audeze.
The King’s circuitry is very different from the typical complementary output topology; it uses the same polarity N-channel MOSFET outputs as these are more alike and complementary than N- and P-channel MOSFETs. Just before the output stage is a two-stage differential amplifier using a dual-triode tube for the input stage followed by a P-channel MOSFET differential driver stage. The driver stage supplies complementary drive to the N-channel output devices. Overall negative feedback is taken back to the input stage to include the input triode in the feedback loop. The circuit is DC-coupled from input to output and a servo control circuit keeps the output DC offset to within millivolts of zero. The overall symmetry of the circuitry eliminates most even-order harmonic distortion. The result is a low impedance, low distortion, wide frequency response output with immense musical transparency, a real emotional experience. Features
• Dual ¼” unbalanced jacks. • True SPL power meters calibrated for specific headphones. • Clipping and overload indicators. • RCA signal inputs. • XLR inputs (converted internally to unbalanced). • Filtered and fused AC power module. • 110/220V AC voltage selector. • Machined aluminum chasis. • Shock absorbing feet.
Package Includes: • 6-ft AC power cord.
Technical Specifications: • Output Power: 6W into 20 ohms load with less than 0.1% THD. • Frequency Response: 10Hz-100KHz, -0.1dB. • Total Harmonic Distortion: Less than 0.1%, 20Hz-20KHz, full output. • SNR: -120dB, A weighted. • Output impedance: 0.3 ohms. • Input impedance: 10k ohms. • Power requirement: 110-120V AC, 50/60Hz; 220-240V AC, 50/60Hz, externally switchable. • Power consumption: 30W maximum. • Dimensions: 300 mm x 110 mm x 325 mm. • Weight: 9 kg.
Tube Complement: • Stock: E88CC, matched pair. • Compatible: 6DJ8 and variants including 6922, 7308, 7DJ8, ECC88, 6H23.
Analogue Headphone Amplifier
Max Sample Rate
1 x 2x RCA Phono (L/R)
2 x XLR
300 x 110 x 325 mm (WxHxD)
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