PHR™ 410 – White

4″ Ceiling Full-Range Speaker


Designed to provide high performance in a very compact footprint, the Architectural Acoustics® PHR™ series in-ceiling mountng enclosures appeal to both system designers and architects. PHR in-ceiling mount enclosures are ideal for high-intelligibility voice, music and signal reproduction in commercial, industrial and institutional applications. A tap selector switch allows for easy system tuning and configuration for 70 or 100V distributed systems. A full selection of taps up to 60 Watts (model dependent) and an 8 Ohms transformer bypass setting are included for maximum system versatility. The UL-compliant enclosure is constructed of high-impact, injection-molded plastic and includes a press-fit grille design that blends well with contemporary architecture.

PHR series enclosures are housed in steel backing cans and include two color-coded, screw-locked flying leads in a wiring chamber to allow for easy system wiring and “daisy chain” wiring to additional PHR enclosures.

Features PHR 410

• Frequency Response: 115 Hz to 13.5 kHz, ±4 dB

• Power Handling: Thru Mode 40 Watts

• Transformer Taps 10W, 5W, 2.5W, 1.25W, 0.63W (70V), 100V capable

• Sensitivity: 86 dB SPL, 1m, 1W (8 Ω nominal inThru Mode)

• 4” woofer with 1” VC, PP cone and rubber surround

• 1” duo-dome polymer tweeter with phase plate

• Crossover Frequency: 4 kHz

• Outside Dimensions: 7.9” x 7.87” (Outermost Diameter x Overall Depth)

• Cutout Diameter: 6.57”

• Enclosure: High-impact polystyrene with removable locking installation arms; back can of formed steel; conduit-capable clamp for wiring; wiring chamber with screw lock; perforated metal grille with inner fabric liner for ‘blackout.’

• C-shaped backing plate support included

• UL compliant

• Quantity per pack – one pair

Additional information

Speaker Configuration

Ceiling Speaker 2-way

Speaker Type


Power RMS

1.25, 2.5, 40 W @ 8 Ω – Selectable taps – 10, 5, or 0.63 W @ 70/100V

Power Program

Power Peak

Nominal Impedance

8 Ω

Sensitivity (1W/1m)

86 dB

Speaker Frequency Response

115 Hz – 13.5 kHz (±4 dB)

HF Driver

1" Duo Dome Polymer Tweeter

LF Driver

4" Woofer

Enclosure Material

Polystyrene & Steel Back Can


Net Weight

4.6 lbs (2.10 kg)

Product Height

7.70" (196 mm)

Product Width

max. Ø 7.90" (201 mm)



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