penguinamp-caffeine-ultra-amp
  1. Andy80F

    DT770 (Beyerdynamic) 250 ohm. Will a CMOY power it?

    My local store has the DT 770 available in 250 ohm guise and from searches so far it seems that some sort of amping will be needed.  I have a low end Fiio, the E5, which I know will be useless but also an older but well made CMOY, Penguin Caffiene, amp which runs from a 9v PP3 battery.  Will the...
    • Andy80F
    • Thread
    • fiio-e5-headphone-amplifier headphone-amplifiers penguinamp-caffeine-ultra-amp beyerdynamic-dt-770-stereo-headphones beyerdynamic-dt-770-pro-closed-studio-headphones-250-ohms beyerdynamic-dt-770-32-ohm
    • Replies: 6
    • Forum: Headphone Amps (full-size)
  2. PenguinAmp Caffeine Ultra Amp

    PenguinAmp Caffeine Ultra Amp

    The "Caffeine Ultra" Amp is truely a high fidelity amp at the lowest price possible. It uses the amazing AD8397 opamp and two TLE2426 railsplitter to create the virtual ground. Furthermore, it includes two slide switches for gain and bass boost (8dB). Advanced customers agree: If this amp would...
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