QSC AC-S4T - 4.5" 70/100V Surface Mount Loudspeaker (Pair)

• High quality transducers provide exceptional clarity through the critical voice range.
• Improved musicality often not seen in typical BGM class products.
• Ported baffle for increased low frequency extension down to 70 Hz.
• Low saturation 70/100V transformers with 8 ohm bypass.
• 4-pole Euroblock connector eases system wiring.
• Advanced voicing via QSC Intrinsic Correction™, applied using Q-SYS processing or CXD amplifier platforms.
• Available in black (RAL 9011) or white (RAL 9010).
• Complete EASE, CAD & BIM information available online.

Effective frequency range1 70 Hz–20 kHz

Rated noise power / voltage2 16 watts / 11.3 volts rms

Broad-band sensitivity3 85 dB SPL

Coverage angle (-6 dB) 130° conical (500 Hz–5 kHz)

Directivity factor (Q) 6

Directivity Index 8 dB

Maximum continuous SPL4 97 dB

Maximum peak SPL4 103 dB

Rated impedance 8 ohms

Recommended amplifier power 32 watts into 8 ohms

Transformer taps 70V: 16, 8, 4, 2, 1 watts

100V: 16, 8, 4, 2 watts

8 ohm bypass

LF transducer 100 mm (4 in) Polypropylene woofer with 25 mm (1 in) voice coil

HF transducer 25 mm (1 in) Aluminium dome tweeter with 25 mm (1 in) voice coil

Input connector type Euroblock connector with parallel output

Enclosure material UV treated, high impact ABS polymer

Grille material Powder coated steel

Yoke material Powder coated steel with brass inserts

• Enclosure Details • Ingress protection
• Operating environment
• Operating Temperature Range

IP-44

Designed for indoor use

-20 to 50° C (-4 to 122° F)

Product Dimensions (HWD) inches 9.1 x 6.3 x 5.9

Product Dimensions (HWD) mm 230 × 160 × 150

Net Weight 5.3 lb / 2.4 kg

Shipping weight 5.3 kg (11.8 lb)

pair packed

Shipping Dimensions (HWD) inches 11.5 × 8.1 × 14.5 

pair packed

Shipping Dimensions (HWD) mm 292 x 206 x 368

pair packed 

Included accessories Yoke mount system, euroblock connector