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SMSL V2 DAC/Amp
SMSL V2 DAC/Amp
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Does anyone know what the output impedance is on this unit? I can't seem to find this information anywhere.
I've had the same problem but it seems like it should support up to 600 ohm based on the product page and some videos.
I'm not talking about the load impedance that this amp is capable of handling. I'm talking about the impedance on the amp side at the output jack. Transducers in headphones are a reactive load since the sound signal is an alternating current, so the output impedance should be smaller than the impedance of your headphones. The rule of thumb is output impedance <1/8 of load impedance, which keeps the effect of your amp on frequency response to <1 dB. My headphones have a minimum 62 ohms across the audio spectrum, which means I would ideally need an amp with output impedance <7.75 ohms. The most noticeable effect of too high output impedance is a reduced bass response.
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