Bia 200 Select, 100 Watt Class A Stereo Power Amp

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Zesto Audio Bia 200 Select, 100 Watt Class A Stereo Power Amp #1
Zesto Audio Bia 200 Select, 100 Watt Class A Stereo Power Amp variant 1
Zesto Audio Bia 200 Select, 100 Watt Class A Stereo Power Amp variant 2
Zesto Audio Bia 200 Select, 100 Watt Class A Stereo Power Amp variant 3

Zesto Audio Bia 200 Select, 100 Watt Class A Stereo Power Amp

View at Zesto Audio
Dual Mono Design
XLR Input
Balanced Output

Key Features


  • The Bias Select switch is engineered with 3 bias settings for 4 different output tube
  • Compatible with KT88, KT120, KT150 and KT170 output tubes
  • Bias Select switch is easy to use, change on the “Fly” so you can hear the difference
  • Auto Bias is safe, consistent and settings are always perfect
  • Class A power is fast for a more lively, immediate response to your music
  • 4, 8 & 16 Ohm taps gives you options for your speaker preference
  • Dual Mono gives you less cross talk and better stereo imaging
  • Choice of high quality gold plated Single Ended RCA or Balanced XLR connectors to suit your needs or cable preferences
  • True transformer differential balanced XLR inputs for the best noise rejection
  • Independent Left and Right ground switches on the XLR balanced inputs to eliminate ground loops and hums
  • No Negative Feedback design does not modify or compress the musical signal
  • Large custom Toroid is higher voltage for increased performance and lower noise
  • Global mains power supply can work all over the world
  • Provides plenty of gain for your system
  • Push-Pull/Ultra Linear circuit design provides lower distortion, more power, and a better performance out of your tubes
  • Low noise levels allow really dark black quiet musical passages
  • Non-inverting polarity retains the same phase as the input (so your trumpets blow and don’t suck)
  • Gold pin sockets are more reliable because gold doesn’t oxidize when it heat cycles
  • Matched quad KT150 output tubes retain the stereo balance and lower noise
  • Elegantly designed, heavy duty 14 &16 gauge zinc plated steel enclosure to accommodate the extensive grounding scheme
  • The optimized frequency response provides the best musical range to benefit the natural harmonic structure of the instruments
  • All fuses are easily accessible
  • Each unit is hand built “Made in the USA”

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