JBL Synthesis S4Ai

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Switch over to your favorite music mode and the S4Ai turns into a direct-radiating 2-way 8" speaker. For smaller installations, where 7-channel sound is important but you don’t have the space, the S4Ai can be dual-driven to provide both side and rear channels from one position in the room. The S4Ai can be used with any of the JBL Synthesis Series systems.

Main Features

THX Ultra2™-Certified Dipole Surround Loudspeaker

Installer-Configurable to 8" 3-Way Dipole Operation

Auto-Switchable to Direct-Radiating Pattern Using 12-Volt Trigger (Default Operation is Diffuse/Cinema)

Single or Dual Drive Capability; Horizontal or Vertical Orientation; 90° Rotatable Mid/High Array for Use In-Wall or In-Ceiling

Fits Completely Flush in a Standard 4" Depth Wall or Ceiling

Factory Configured in 8" 3-Way Bipole Operational Mode

Integrated One-Piece Back Box

Retrofit (S4RFB) and New Construction (S4PCB) Bracket Available.


General Specifications:

Maximum Recommended Amplifier Power 200 Watts single-driven or 175 watts per array, dual-driven
Nominal Impedance 6 Ohms
Sensitivity (2.83V @ 1m) 90dB
Frequency Response (–3dB) 80Hz – 20kHz
Crossover Frequencies Dipole mode 800Hz, 3.6kHz
Bipole mode 800Hz, 3.6kHz
High-Frequency Transducers Triple 1" pure-titanium domes with rubber surrounds, shielded, with EOS waveguides
Midrange Transducers Dual 4" dome with rubber surrounds, neodymium magnet and cast-aluminum baskets
Low-Frequency Transducer 8" Dual-voice-coil inverted dome with rubber surround and cast-aluminum basket
Connections Speaker 4-conductor push-type, 10 to 16 gauge;
Control 2-conductor screw terminal, 18-24 gauge
Dimensions (H x W x D)
23-7/8" x 14" x 3-3/4"
(606mm x 356mm x 95mm)
Weight 23 lb (10.45kg)