PA3S+ upgrade version: 1: Upgrade interface 2.5MM/3.5MM stereo/3.5MM balanced/4.4MM compatible with general balanced stereo headphone plugs on the market. 2: Optimizing the power supply still adopts the left and right independent sets of ±13V power supply to improve the dynamic separation. 3: The op amp can be directly replaced to meet the user's DIY use. 3U thick gold-plated op amp seat has better contact and durability. 4: Increase the built-in BASS low frequency enhancement switch. 5: Optimize high gain gear multiples suitable for driving high impedance or low sensitivity headphones. 6: Use custom composite dual op amps as the pre-amplification process sound (left and right independent group). 7: Optimize the anti-interference design. 8: The headphone driver uses two Class-AB ultra-low distortion 0.00014% high current TPA6120A2 outputs. 9: Support stereo 3.5MM input balance/stereo output, 2.5MM balance input balance/stereo output is extremely playable. N=NORMAL (stereoscopic) B=BALANCED (balanced) mailDefault gain multiplier: L file*1 (balanced) M file*4 (balanced) H file*8.8 (balanced) If you need other multiples, you can adjust it according to the equipment...
1: The 3.5MM stereo output interface is compatible with three single-ended or four balanced headphones. 2: The 3.5MM/PRO balanced output interface only supports four balanced headphones (3.5Mm stereo headphones cannot be used, otherwise the amp components may be damaged). 3: 4.4MM balanced output interface. 4: 2.5MM balanced output interface. 5: Power indicator (green normal power and red power is low). 6: Four-channel volume knob control. 7: Input signal button selection (B-2.5MM balanced input when popped up, N-3.5MM stereo input when pressed). 8: Adjust the gain of L channel. 9: Adjust in R channel gain size. 10: 2.5MM balanced input interface. 11: 3.5MM stereo input interface. 12: 8.4v charging interface (must be equipped with a charger with its own charging function). 13: Power switch.
12-core single crystal silver cable/pairing recording cable option: (remarks A/B/C/D/E choose one) A: Two 2.5MM-2.5MM balanced/3.5MM-3.5MM stereo pair recording cables (in-line). B: 2.5MM-2.5MM balanced pair recording line (curved plug). C: 3.5MM (player end)-2.5MM (headphone amplifier end) balanced pair recording cable (curved plug). D: 4.4MM (player end) -2.5MM (headphone amplifier end) balanced pair recording cable (curved plug). E: 3.5MM-3.5MM stereo pair recording cable (curved plug). F: 4.4MM balance (player end) -3.5MM (headphone amplifier end) stereo-pair recording cable (curved plug). G: 2.5MM balance (player end) -3.5MM (headphone amplifier end) stereo-pair recording line (curved plug). H: 3.5MM balance (player end) -3.5MM (headphone amplifier end) stereo-pair recording cable (curved plug). parameter: Size: Length 110MM, width 70MM, height 23.6MM. Output impedance: balance <1 ohm, stereo <2.2 ohm. Input impedance: 10K. Input level: about 2.1V is recommended. Output power: about 2000mW/32Ω, 320mW/250Ω, 160mW/600Ω. Frequency response range: 10HZ-100KHZ. Support impedance: 6-600 Ω. Battery life: 6-7.5 hours. Battery capacity: 3000MA*2. Accessories: USB to 8.4V charging cable (for use with USB 5V 2A or higher charging head) bundled with two large and two small cables, optional for recording cables, 4 small gold label stickers, small hexagon wrench.