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PMC Loudspeakers IB1 Passive 3-way monitors bundled with Bryston 3B3 Pro dual-channel amplifier. Sold as single unit



The IB1S features wide dispersion soft domed fabric mid and high frequency units and the PMC 10" carbon fibre and Nomex? flat piston low frequency driver. This flat patented driver increases dynamic handling and eliminates distortion that may occur due to cone break up.

Commonly seen in Mastering, Broadcast and Postproduction in either stereo or surround when partnered with its dedicated centre channel and SB100 sub bass system. Its huge popularity in Hollywood film scoring and postproduction is assisted by the option of 'Film filters'. This gives 2 positions of HF roll off: 1.5dB and 3dB per Oct and Flat position.

The Bryston 3B³ is dual-channel (stereo) amplifier designed for a wide range of audio/video systems which call for medium to high amounts of power and long-term reliability.

The 3B 3 and 4B 3 are dual mono design audio power amplifiers with two channels capable of 200 watts and 300 watts each respectively intended for use in very high performance professional audio systems. Robust yet beautiful machined aluminum enclosures house our proprietary industry-leading circuit designs resulting in exemplary performance observed both in the listening space and in the laboratory.

C-Series variants are available in your choice of 17 inch or 19 inch wide non-rack mountable aluminum dress panels anodized in clear (silver toned) or black. Nineteen inch wide C-Series amplifiers include front mounted handles. PRO amplifiers feature 19 inch wide rack mountable dress panels with a black anodized front finish and also include individual channel trims located on the rear panel.

Power Capabilities:
200W into 8
300W into 4
400W into 8 (Bridged Mono)
PMC IB1 Passive
  • Active extremely low distortion input buffer
  • Balanced and unbalanced inputs
  • Selectable gain at 23 or 29dB
  • Regulated power supplies to all voltage gain stages
  • Independent power supplies for each channel
  • Convection cooled and housed in a fully aluminum chassis
  • No fans or other moving parts
  • Bridging switch configures amplifier into a single 400W Channel
  • Available Finishes: Neo Black
  • Crossover Frequency: 380Hz & 3.8kHz
  • Dimensions: H 740mm 29.1" W 330mm 13.0" D 465mm 18.3"
  • Drive Units: LF 250mm PMC Carbon Fibre /Nomex? piston driver , MF 75mm doped fabric , HF 27mm fabric soft dome
  • Effective ATL? Length: 2.4m 8ft
  • Impedance: 4 Ohm nominal
  • Input Connectors: 3 Pairs 4mm Sockets (Tri-wire or Tri-Amp)
  • Recommended Amp Power: 120-500W
  • Sensitivity: 89dB 1W 1m
  • Useable Frequency Response: 25Hz-25kHz Peak SPL @ 1M: 116dB
  • Weight: 36kg 79.2lbs

  • Bryston 3B3
  • Harmonic Distortion: < .005% from 20Hz - 20kHz at 200W
  • Noise below full output: -110dB single ended, -113dB balanced
  • Slew Rate: < 60V/µS
  • Power Bandwidth: .5Hz - > 100kHz
  • Damping Factor: > 500 at 20Hz (8)
  • Gain: Switchable - 23dB or 29dB
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