Zesto Audio EROS 500 monoblocks

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Zesto Audio EROS 500 monoblocks

Zesto Audio – EROS 500 Select Class A Monoblocks

Zesto Audio EROS 500 monoblocks

• STATE OF THE ART TUBE DESIGNS FOR MUSIC LOVERS!
  EROS 500 SELECT, 250 WATT CLASS A MONOBLOCKS
• Zesto Audio EROS 500 monoblocks 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”
  SPECIFICATIONS PER AMP (BASED ON KT150 TUBES)
• Output
• Pure Class A, Push-Pull Ultra Linear design
  250 Watts per amp
  4 Ohm and 8 Ohm non-differential output taps
  Three 5-way binding posts
  10 Amp and 7 Amp Slow-blow speaker fuses (6mm x 32mm)
  Non-inverting output polarity
  SpeakOn connector for a subwoofer
  SpeakOn subwoofer cable specs: Pins +1 and +2 go to the 8 Ohm output and pin -1 goes to ground
  Power rating for Auto Bias Select Switch Settings
• Left Position:
• KT88 = 150 Watts per channel
  KT120 = 150 Watts per channel
  KT150 = 150 Watts per channel
  KT170 = 150 Watts per channel
  Middle switch position:
• KT150 = 200 Watts per channel
  KT170 = 200 Watts per channel
  Right switch position:
• KT150 = 250 Watts per channel
  KT170 = 250 Watts per channel
  Inputs
• Transformer true balanced differential input
  XLR gold pin balanced input with pin 2 hot, impedance 12K Ohms
  RCA gold pin single ended input, impedance of 12K Ohms
  XLR ground lift switch
  3.3 Volts RMS input to reach rated output
  Detailed Specs
• Monaural
  Auto bias
  No negative feedback
  Frequency response 20Hz to 30Khz ~ 3dB
  Total Harmonic Distortion ~ 0.07% at 1W into 8 Ohms
  Gain of 27dB
  Noise level > 4 mV RMS into 8 Ohms with input shorted
  1% metal film resisters throughout
  Polypropylene capacitors throughout the signal path
  Power
• Large custom Toroidal power transformer
  120 Volts AC mains with 10 Amp 5mm x 20mm slow blow fuse
  Mains fuse located in drawer compartment of IEC power connector
  3 pin 15 Amp IEC power inlet connector
  Optional factory installed 220V, 230V/240V 50/60Hz with 6.3 Amp slow blow fuse
  Power consumption at rated output 756 Watts
  On/Off switch conveniently located on front panel
  Amber LED low voltage and green LED high voltage indicators
  Active Components
• Six (6) KT150’s vacuum tubes
  Two (2) ECC82 (12AU7) vacuum tubes
  Other Features
• Each unit is made by hand
  50 hour factory burn in on all circuits and vacuum tubes
  Dimensions 17″ W X 20″ D X 10″ H (43.1 cm x 25.4 cm x 50.8 cm)
  Weight 79 lbs. (35.8 Kg)
  Shipping weight 96 Lbs. (43.5 Kg)
  Shipping box 27″ W X 27″ D X 13″ H (68.5 cm x 68.5 cm x 33 cm)
  16 and 14 gauge Zinc plated steel enclosure
  Two year limited warranty
  Six months warranty on 12AU7 Vacuum Tubes, 90 day warranty on KT150 power tubes

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