home news products about us contact
 
  Integris CDP
  Integris
Active 300B
  2008 Updates
  System Design
  Specifications
  Reviews
  Literature
  Accessories
Amplifier

Single chassis stereo triamplifier with integral active crossover.

Exclusively for use within the Aurum Acoustics Active 300B active loudspeaker system.

Chassis:

  • All precisely machined anodized aluminum panels of 10mm and 3mm thickness, assembled with machine screws
  • Front panel 4" high x 19" wide
  • Main body: 22" deep x 18" wide x 3.625" high
  • Overall dimensions with tubes installed: 10" high x 19" wide x 23" deep
  • Weight approximately 32kgs / 70lbs.
Low Frequency Power Amplifier:
  • 100watt solid-state output module designed and manufactured by Bryston
  • 500VA Plitron toroidal transformer
  • 44,000 uF capacitance power supply filtering and energy storage
  • Hyperfast soft recovery diodes
  • Independent AC power fuse
Mid and High Frequency Power Amplifiers:
  • Individual 300B output tube in single-ended-tube circuits with zero-NFB delivering 5watts before clipping
    • conservative 20watts plate dissipation (only 50% of maximum) for long reliable tube life (10,000hrs+ expected)
    • cathode bias for simplicity, reliability, and sonic quality - no adjustments necessary
    • Sophia Electric mesh plate 300B supplied; all available 300B tubes are compatible
    • Custom-made polypropylene film cathode bypass capacitors for superb transparency and musicality - superior to typical electrolytics
  • Plitron toroidal output transformers
    • custom designed by Menno Vanderveen for Aurum Acoustics
    • optimized for higher frequency ranges - superior to transformers that must also run bass frequencies
    • high impedance transformers provide the linearity of running the 300B at 40watts dissipation but without the tube stress and failure rate
  • DC filament supplies using choke-equipped pi filters and high voltage supply with extensive choke-equipped pi filters and cascaded filtering for the input sections
    • noise suppressed to better than 80dB
    • no adjustments required
  • 6SN7 driver and input/crossover stages with zero-NFB
    • optimized to match the 300B output stage for minimum distortion and optimal sonics
    • screened and matched ElectroHarmonix tubes supplied
    • customized polypropylene film coupling/crossover capacitors and precision metal-film resistors used in all related circuits including crossover functions
  • Independent AC power fuse
Connections:
  • Signal input Cardas rhodium-plate RCA
    • Internal wiring Cardas golden ratio, constant Q, crossfield, pure copper litz
  • Neutrik 4-pin XLR with for mid and high frequency output
    • a superior performer for this application that makes connections fast and easy
    • internal wiring: Cardas SE golden ratio, constant Q, crossfield, pure copper litz
  • Cardas Patented Binding Posts for low frequency output
    • convenient single-knob clamping
    • solid rhodium-plated copper contacts - perfect match to the Cardas spades used on the matching cable
    • internal wiring is Cardas 9AWG golden ratio, constant Q, pure copper litz
  • 15A IEC power inlet with integral RFI/EMI filter
    • external power conditioners not necessary
    • Accepts all standard 15A power cord connectors
    • Aurum Acoustics optional power cord highly recommended
  • All solder throughout the system is Cardas quad-eutectic with copper and silver content
   Next Section >

< Specifications Section

 
Copyright Aurum Acoustics 2008