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the soft start circuit shorts out the NTC resistor with a relay
6 dB gain unless otherwise noted
Sound Quality
As shown below
many consumer and prosumer sources do not feature differential outputs
HP-22 Board Option:Unpopulated PCB the soft start circuit shortsBuild a high performance headphone amplifier for less than $100! The HP 22 is an all DIY, low distortion headphone amplifier. It provides 200 mW into 300 at vanishingly low distortion and easily drives headphones down to 32 . With its ultra low noise floor, it the HP 22 also lends itself well to driving IEMs. With its ample output power and incredibly low distortion, the HP 22 provides a clean sound with a very realistic sound stage. Technical
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