Quote:
Originally Posted by Puma Cat
Yes, the amps Serge has discussed run hot. That's why I recommended Vali;it is small and only has one tube. Should be quite a bit cooler. If you don't want to deal with tubes at all, one could start with the new solid-state Magni 3. It's brand new design and I've read great things about it. For a $99 investment, its minimal risk. There should be no issues with heat with Modi Multibit or Bifrost Multibit.
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Definitely worth a try.
"Forget $99—Compare at Many Times the Price
Most headphone amps in Magni’s price range use op-amps (integrated chips) for gain and power output. Not Magni. Magni’s gain stage is an-all-new, fully discrete, high-speed, dc-coupled, current-feedback design, completely different than the first and second-generation Magnis. This current-feedback gain stage is typically only found in very exotic designs that sell for more than 10x the Magni’s price."
*Maximum Power, 16 ohms: 3W RMS per channel
Maximum Power, 32 ohms: 2W RMS per channel
Maximum Power, 50 ohms: 1.3W RMS per channel
Maximum Power, 300 ohms: 430mW RMS per channel
Maximum Power, 600 ohms: 230mW RMS per channel
*
THD: Less than 0.001%, 20Hz-20KHz, at 1V RMS, less than 0.02% at 5V RMS into 32 ohms
IMD: Less than 0.001%, CCIF
*
SNR: Greater than 108db, unweighted, referenced to 1V RMS
*
Crosstalk: -70dB, 20 Hz-20KHz
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Output Impedance: Less than 0.3 ohms at either gain
Input Impedance: 25k ohms