PHR™ 860S – White

8″ Ceiling Subwooer


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 860S

• Frequency Response: 55 Hz to 100 Hz, ± 6 dB, 45 Hz @ -10 dB

• Power Handling: Thru Mode 100 Watts

• Transformer Taps 60W, 30W, 15W, 7.5W, 3.75W (70V), 100V capable

• Sensitivity: 89 dB SPL, 1m, 1W (8 Ω nominal inThru Mode)

• 8” woofer with 1.2” VC, PP cone and rubber surround

• Crossover Frequency: 120 Hz

• Crossover Slopes: 18 dB/oct

• Outside Dimensions: 15.75” x 12.75” (Outermost Diameter x Overall Depth)

• Cutout Diameter: 14”

• 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 Subwoofer

Speaker Type


Power RMS

100 W @ 8 Ω – Selectable taps – 60, 15, 30, 7.5, or 3.75 W @ 70/100V

Power Program

Power Peak

Nominal Impedance

8 Ω

Sensitivity (1W/1m)

89 dB

Speaker Frequency Response

55 Hz – 100 kHz (±6 dB)

LF Driver

8" Woofer

Enclosure Material

Polystyrene & Steel Back Can


Net Weight

14.5 lbs (6.58 kg)

Product Height

12.75" (323.9 mm)

Product Width

max. Ø 12.44" (316 mm)



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