SB45-P
The SB45-P is a compact powered subwoofer featuring a dual-isobaric system topology. It is an ideal low-bass companion for the SoundFrame low-profile speaker line.
Applications
The SB45-P is designed to provide seamless bass reinforcement for all SoundFrame low-profile speakers. It is also an excellent subwoofer for smaller home theater systems and 2.1-channel high-resolution music systems.
| NOMINAL DATA |
SB45-P powered subwoofer |
| Frequency Response |
39 - 120 Hz +/- 3 dB |
| Sensitivity |
90 dB @ 2.8 volts / 1 meter |
| Impedance |
self powered |
| Power Handling |
75 watts (internal amplifier) |
| Maximum Output |
107 dB peak @ 1 meter |
| Nominal Coverage Angles |
omnidirectional |
| Dimensions |
18.50" H x 11.63" W x 9.00" D |
| Weight |
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| DESCRIPTIVE DATA |
SB45-P powered subwoofer |
| System Configuration |
Dual isobaric self-powered subwoofer |
| Components and Loading |
(4) 5.25" cone LF drivers in dual-isobaric configuration |
| Recommended High Pass Filter |
4th order at 30 Hz built in - no external HP needed |
| Cabinet Type |
Tuned and vented isobaric system |
| Enclosure Material |
MDF |
| Finish |
Black textured polyurethane |
| Connectors |
Dual RCA-type signal-level input jacks |
| Suspension Hardware |
None |
| Grill |
Fabric-wrapped MDF |
Architectural Specifications
The self-powered low-frequency loudspeaker shall utilize four 5.25" transducers in a dual-isobaric configuration (two isobaric pairs per enclosure) in a vented enclosure. System frequency response shall extend from 39 Hz to 120 Hz varying no more than +/- 3 dB. Maximum long-term acoustic output shall be no less than 107 dB measured at 1 meter from the loudspeaker baffle. The nominal coverage pattern shall be omnidirectional. Overall dimensions shall be no greater than 18.50" x 11.63" x 9.00"
The loudspeaker shall incorporate dual RCA-type connectors for signal input. It shall incorporate an internal amplifier capable of producing 75 watts RMS over the full system frequency range. The amplifier's power supply shall employ a toroidal transformer to reduce stray field and noise. The loudspeaker shall employ a 12 db/octave low-pass filter with a 120-Hz corner frequency and a 4th-order high-pass filter with a 30-Hz corner frequency to prevent over-excursion of the transducers.
The loudspeaker's enclosure shall be constructed of medium-density fiberboard (MDF). Standard finish shall be black textured polyurethane, with a grille of black fabric over an MDF frame.
The low-frequency loudspeaker shall be Innovox Audio model SB45-P.
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