IB1S-AIII
PMC Discontinued

IB1S-AIII

Three-way active studio monitor with a 10-inch carbon fibre bass driver and ATL bass loading, aimed at small to medium control rooms for recording, mixing, broadcast and mastering work. Listed as an archive model.

  • Three-way monitor with ATL bass loading
  • 10" carbon fibre/Nomex LF driver, 75 mm MF and 27 mm HF soft domes
  • Frequency response 25 Hz–25 kHz
  • Balanced XLR input, IEC mains 100–240 V
  • Crossover at 380 Hz and 3.8 kHz
  • 20-year warranty if registered within 10 days of purchase
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Description

The IB1S-AIII is a floor-standing three-way monitor for critical listening. A 250 mm carbon fibre/Nomex piston driver handles the low end, working with PMC's Advanced Transmission Line (ATL) bass loading, which uses an effective line length of 2.4 m. The mid-range and high frequencies are covered by a 75 mm doped fabric soft dome and a 27 mm fabric soft dome, with crossover points at 380 Hz and 3.8 kHz.

The design is described as plug and play, with the amplification built in. Input sensitivity is adjustable between 17 dB and 37 dB, and the frequency response is quoted as 25 Hz to 25 kHz. It is intended for tracking, mixing, broadcast and post-production or mastering in small to medium rooms.

Connection is through a balanced XLR input, and power comes from an IEC mains inlet accepting 100 V to 240 V. Each cabinet measures 740 x 330 x 510 mm and weighs 45 kg. A datasheet and manual are available for download, and registering the product within 10 days of purchase extends the warranty to 20 years under the maker's terms.

Video

Specifications

Brand
PMC
Model
IB1S-AIII
Category
Studio › Studio monitors

Audio

Frequency response
25Hz-25kHz
Sensitivity
Variable 17dB-37dB
Crossover frequencies
380Hz & 3.8kHz
Effective ATL length
2.4m (8ft)
Design
3-way

Drive units

LF driver
PMC 250mm/10" Carbon Fibre/Nomex piston driver
MF driver
75mm doped fabric soft dome
HF driver
27mm fabric soft dome

Inputs

Input connectors
Balanced XLR
Input impedance
16.5k Ω

Power

Mains input
IEC connector, 100V - 240V

Physical

Height
740mm (29.1")
Width
330mm (12.9")
Depth
510mm (20")
Weight
45kg (99.2lbs)

Warranty

Extended warranty
20 years when registered within 10 days of purchase

Documentation

Downloads
Datasheet and manual

Documents

PDF User manualPDF · by the maker

Data: pmc-speakers.com; photos: PMC product page · updated 2026-10-13 · Found a mistake? Write to us