SmartSub
®
Integrator
—Marc Mickelson
SoundStage, November 2004
“Configuring a subwoofer optimally has always been a
challenge…[the THIEL] subwoofer and integrator/crossover are
easy and nearly foolproof to use and the results are deep,
powerful, non-directional bass that gives the aural illusion that
your speakers have sprouted a new woofer or three.”
Sensitivity
Low Frequency Limit
Reflex
Sealed
Crossover
Augment
MAIN SPEAKERS
Crossover Frequency
LFE Level
SYSTEM
PERFORMANCE
Low Frequency Extension
Number of Subwoofers
Low Frequency Level
Type
Mode
Stereo
Mono
Channels
Damping
Decrease
Increase
Store Preset
Recall Preset
Select Next
Select Prev
Main Amplifier Gain
THIEL
SmartSub Integrator
Unbal Input
Right Bal Input
Left Bal Input
LFE Input
Right Bal Output
Left Bal Output
Speaker level Inputs
Power
L
R
Unbal Output
L
R
+
L
R
–
INPUTS
OUTPUTS
Right Sub Output
Remote
Left Sub Output
Right Bridge In
Left Bridge In
S / N
Model
SI 1
THIEL Audio
Lexington, Kentucky USA
www.thielaudio.com
U.S. Patent No. 6,687,379
other patents pending
using THIEL’s patented SmartSub Technology
The SmartSub SI 1 Integrator is designed to provide the unprecedented ability to perfectly match THIEL subwoofers to
any speaker, regardless of brand or type, for seamless, coherent sound. The Integrator takes the guesswork out of
subwoofer crossover adjustments. Other subwoofers require that you endlessly experiment with settings for crossover
frequency, level, and phase with no intelligible way of determining optimal settings and often concluding in unsatisfac-
tory results. The Integrator’s SmartSub circuitry automatically calculates the ideal settings once you enter information
about your main speakers. The result is perfectly balanced sonic performance equivalent to a full-range speaker with
extremely high output capability and very deep bass.
The Integrator can be used in augment mode to extend the bass range of the system’s main speakers or in crossover
mode to transfer the bass energy from the main speakers into the subwoofer, allowing the system to play at higher output
levels. The Integrator utilizes two-channel circuitry so that stereo bass can be preserved when multiple subwoofers are
employed and can be used with up to 16 subwoofers in very large systems.
SmartSub Integrator: Perfectly match a THIEL subwoofer to
ANY
main speaker
SI 1 Integrator
SmartSub Technology
eliminates the major
problems and limitations
that conventional
subwoofers have in
matching the system’s main
speakers and the room.
