Specification Sheet

Control
®
SB-2
Professional Series – Dual-Coil Subwoofer With Stereo Inputs
SPECSHEET
Key Features:
• Component: 250 mm (10 in) transducer with dual voice coil
• Stereo inputs with high-pass outputs for satellite speakers
• Slot-load vented bandpass design
• Complements full-range Control Contractor Series systems
• High Sensitivity: 100 dB, 1W, 1 m
Specifications:
System
Frequency Range (-10 dB) 38 Hz – 160 Hz
Continuous Program Power Capacity
1
340W (both inputs driven)
170W (each input) x 2
Sensitivity
2
100 dB (1W @ 1m) at corner junction (pi/2
loading)
97 dB, at two boundary junction (pi loading)
Nominal Impedance 8 ohms per input; 4 ohms total with both
inputs paralleled.
Network Filter to Subwoofer 12 dB/oct low-pass (per input), 160 Hz
Acoustic Filtering 6 dB/oct low-pass filtering via slot-load
design, 80Hz
Network Filter to Satellite Outputs 6 dB/oct high-pass (per output)
Satellite Impedance 4Ω load per Satellite Output recommended
Optimum System Configuration Four JBL Control 23 satellite speakers
(two on each SB-2 satellite output) provide
optimum sensitivity balance and impedance
loading, resulting in full-range 38 Hz – 22
kHz system performance. Broadband
impedance is 4Ω per input x 2 channels.
Transducers
Driver 250 mm (10 in) long-throw with dual voice
coils
Physical
Terminations Spring terminals, accepts banana plugs.
Left In, Right In, Left Satellite Out, and Right
Satellite Out
Enclosure Material Particle Board
Dimensions (H x W x D) 394 x 585 x 343mm (15.5 x 23.0 x 13.5 in)
Net Weight 19.1 kg (42 lbs)
Shipping Weight 22.7 kg (50 lbs)
Installation Accessories » MTC-SB2W for installing SB-2 onto a wall
or into a corner
» MTC-SB2C for suspending SB-2 from
ceiling
1
Continuous program is a conservative expression of the system’s ability to handle
normal speech and music program material and is defined as 3 dB greater than the
continuous pink noise rating (AES pink noise from 30 Hz – 300 Hz with a 6 dB crest
factor, for 100 hours continuously).
2
Sensitivity rated in the subwoofer band, from 60 Hz – 90 Hz, both inputs driven
1/2W each (1W total). Sensitivity with 1W to each input is 3 dB higher.
JBL continually engages in research to produce improvement. New materials,
production methods, and design refinements are introduced into existing products
without notice as a routine expression of this philosophy. For this reason, any current
JBL product may differ in some respect from its published description, but will always
equal or exceed the original design specifications unless otherwise stated.
Description:
The Control SB-2 provides low frequency reinforcement in subwoofer/satellite
systems. The Control SB-2 is ideal for foreground music and music/paging
systems in restaurants, retail establishments, theme bars, music cafes,
health clubs, and other indoor applications.
The unique slot-load vented design provides acoustic low-pass filtering.
Compared to traditional bandpass subwoofers, the SB-2 offers superior
musical clarity and bass impact.
The satellite outputs are highpass filtered, reducing overall system distortion by eliminating the need for the satellite speakers to reproduce frequencies in the
low bass range. The satellites operate more efficiently, maintaining excellent midrange clarity and realism in music and paging. The high-pass filtering also
allows a greater number of satellite speakers to be paralleled in the system by increasing the impedance the amplifier sees in the subwoofer range. The stereo
inputs are 8 ohms each.
The combination of the satellite high-pass filtering, the acoustic slot-load filtering and a built-in 2nd order low-pass crossover network results in smoother
overall system frequency response and virtually eliminates the “muddiness” typical of other subwoofer/satellite systems by reducing frequency overlap in the low
midrange.