EROS 500 Select, 250 Watt Class A Monoblocks

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Zesto Audio EROS 500 Select, 250 Watt Class A Monoblocks #1
Zesto Audio EROS 500 Select, 250 Watt Class A Monoblocks variant 1
Zesto Audio EROS 500 Select, 250 Watt Class A Monoblocks variant 2
Zesto Audio EROS 500 Select, 250 Watt Class A Monoblocks variant 3

Zesto Audio EROS 500 Select, 250 Watt Class A Monoblocks

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Balanced Output
XLR Input
Subwoofer Output

Eros 500 Select Key Features

  • Sextet of KT150 output tubes create 250 watts of Class A musical power.
  • Class A power is fast for a more lively, immediate response to your music
  • The Bias Select switch is engineered with 3 perfect auto bias settings for KT88, KT120, KT150 and KT170 output tubes.
  • The Bias Select switch is safe and easy to use, change on the “Fly” so you can hear the difference.
  • 4 Ohm and 8 Ohm taps gives you options for your speaker preference. 4 Ohm may give you more base and the 8 Ohm tap may sound more open.
  • The optimized frequency response provides the best musical range to benefit the natural harmonic structure of the instruments
  • The SpeakOn cable connector provides most reliable hookup for your subwoofer.
  • Transformer balanced true differential XLR input offers noise cancelling and rejection, as well as providing ground isolation from your preamp.
  • Should you need to eliminate a hum? The Eros 500 has a XLR ground switch installed for your safety. This eliminates the dangerous temptation to lift the ground from the mains.
  • The combo Push-Pull and Ultra Linear circuit design provides lower distortion, more power, and a better performance out of your tubes.
  • No Negative Feedback in the circuit design provides better dynamic range because it doesn’t compress the music.
  • Non-inverting polarity retains the same phase as the input (so your trumpets blow and don’t suck)
  • Large Custom Toroid power transformer provides plenty of available power.
  • Toroids have lower noise because they concentrate the magnetic field and are very efficient in the 50 to 60Hz mains range.
  • Choice of high quality gold plated Single Ended RCA or Balanced XLR connectors to suit your needs or cable preferences
  • Gold pin sockets are more reliable because gold doesn’t oxidize when it heat cycles.
  • An extensive grounding scheme is designed into the power supply, wiring and all tube circuitry.
  • Elegantly designed, heavy duty 14 & 16 gauge zinc plated, fully grounded steel enclosure isolates external noise and vibration.
  • All fuses are easily accessible
  • It’s ready to enjoy with 50 hours of factory burn in on all circuits and vacuum tubes.
  • Each unit is hand built “Made in the USA”

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