3-way passive midfield monitor

CAP2: 0 £11,995.00
£9,995.83 ex VAT
Call or email for availability.

Three-way active studio monitor with award-winning Advanced Transmission Line (ATL) technology

At a glance

  • PMC ATL™ (Advanced Transmission Line) with 2 sections
  • 27mm Twin Chamber fabric Soft dome HF with high performance ferro-fluid cooling
  • 75mm Soft Dome mid range in isolated enclosure
  • PMC 10” / 250mm carbon fibre and Nomex™ piston driver
  • Phenomenal bass response down to 25Hz
  • Magnetic shielding available (IB1SM)
  • Matching low profile centre channel (IB1SM-C)
  • Matching SB100 subwoofer to complete a surround system
  • Film filter option: HF Roll off 1.5dB, 3dB and Flat
  • Custom speaker stands for optimising performance 840mm (33") High

The PMC IB1S-AIII is a three-way active studio monitor for recording and mixing studios, mastering and broadcast facilities, using many improvements found on the IB2S-A.

The PMC IB1S-AIII features the same award-winning Advanced Transmission Line (ATL) technology, proprietary low-frequency carbon fibre and Nomex 10" flat piston driver isolated three-inch midrange driver and 27mm soft dome high-frequency driver as the original IB1S-A design. The activated design uses the popular PMC DS-001 Class D power amp which is housed at the back of the speaker and delivering an impressive 400W of power.

Using some of the features of the IB2S-A the ATL cabinet is now lined with newly engineered absorptive foam to minimise harmonic distortion and deliver superior definition. This translates in much clearer bass and transparent midrange uncoloured by low frequencies. In addition, the updated cabinet features extra internal bracing, further reducing crosstalk and resonances.


  • IB1S-A Type: Activated
  • Useable: freq response 25Hz-25kHz
  • Peak: SPL @ 1M 116dB
  • Sensitivity: 89dB 1W 1m
  • Impedance: 4 Ohm nominal
  • Effective line length: 2.4m 8ft
  • Drive units
    • LF 240mm, 100mm voice coil
    • HF 27mm soft dome
  • Crossover Frequency: 380Hz & 3.8kHz
  • Input connectors: 3 Pairs 4mm Sockets (Tri-wire or Tri-Amp)
  • Activated: DS-001
  • Distortion
    • <0.0007% 20hz-20kHz
    • full o/p Slew rate .60 micro seconds
    • Power B width 1Hz to 100Hz
  • Finish: Neo Black
  • IB1S Dimensions
    • H 740mm 29.1"
    • W 330mm 13.0"
    • D 465mm 18.3"
  • IB1SM-C (centre channel)
    • H 330mm 13.0"
    • W 740mm 29.1"
    • D 465mm 18.3"
  • Weight (each): 46.5kg 102.3lbs

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