wafer1-iw
PMC Discontinued

wafer1-iw

In-wall loudspeaker with a 140 mm (5.5 in) bass unit and twin 27 mm soft-dome tweeters, built around a shallow transmission-line cabinet. It suits ceiling or wall installs in home audio setups where a flush, paintable speaker is wanted.

  • 5.5 in (140 mm) bass unit with twin 27 mm soft-dome tweeters
  • Frequency response 50 Hz–25 kHz, sensitivity 87 dB (1 W, 1 m)
  • 8 ohm impedance; sprung and 4 mm sockets
  • Shallow folded-chamber cabinet, no back box needed
  • Paintable slim grille and frame; near-flush fit
  • 20-year warranty if registered within 10 days
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Description

The wafer1-iw is the smaller of two in-wall models in a range that complements the on-wall wafer series. It uses an ultra-shallow, folded internal chamber lined with acoustic treatment, which extends the bass response beyond what a conventional box of this size would give and keeps rear leakage low, so no back box or cavity treatment is needed.

Two 27 mm soft-dome tweeters work with image-steering techniques so the speaker can be mounted above or below ear level without losing performance. A structured, absorbent baffle surface limits reflections from the front panel and the surrounding wall or ceiling. The speaker sits almost flush in a wall or ceiling, and the slim grille and frame can be painted to match the room.

Connection is by one pair of sprung terminals that also accept 4 mm sockets. Nominal impedance is 8 ohms. A mounting template, manual, drawing and brochure are offered as downloads. Registering the product within 10 days of purchase extends the warranty to 20 years, subject to terms.

Specifications

Brand
PMC
Model
wafer1-iw
Category
Hi-fi and home audio › Speakers

Audio

Frequency response
50Hz-25kHz
Sensitivity
87dB 1w 1m
Impedance
8 Ohms
Low-frequency driver
140mm (5.5 inches)
High-frequency drivers
2 x 27mm Soft dome
Number of tweeters
2

Inputs

Input connectors
1 pair - Sprung & 4mm sockets
Number of input pairs
1

Physical

Height
500 mm
Width
235 mm
Depth
100 mm
Weight
5.5kg (12.1 lbs)
Mounting
In-wall / in-ceiling
Bass loading
H-Line ATL
Tweeter technology
TT Technology (twin tweeter)
Baffle
StealthBaffle

Warranty and downloads

Warranty
20 years when registered within 10 days of purchase
Downloads
Brochure, mounting template, manual, drawing

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