BGW M2200 & M1100

The clipping eliminator circuit prevents square waves from reaching the speakers and causing voice coil overheating. The circuit is capable of handling input levels up to 16dBm.

The excursion limiter integrates the voltage applied to the speakers during each musical transient and reduces the gain instantaneously once the speaker's excursion limit is reached.

Ported enclosures are used in the M2200 and M1100 systems. All ported boxes have the characteristic of unloading the drivers below their cut-off frequency. When unloading occurs, the speaker cones can be ripped right out of their baskets. BGW uses a steep, fixed frequency, high pass filter to prevent out of band (subsonic) signals from reaching the drivers and damaging them. This filter is a 4 pole design with a Q of 1.3, which provides 3dB of boost and 24dB/octave slope.

To allow a wide range of speaker systems to work well with BGW self powered subwoofer systems, we have provided a choice of 10 adjustable low pass filter frequencies from 63 - 180Hz on 1/6 octave ISO centers. The compliment to the high pass filter is avalible on the units terminal strip, as a single ended output. Exact and repeatable selection is provided using sliding step switches located on the processor panel.

After more that a year of field experience, BGW Engineers added an additional limiter circuit before the filters to prevent operator misuse. This limiter prevents excessive signals from reaching the filters and destroying their bandpass characteristics.

Benefits
By eliminating long speaker cables, high damping factors are preserved, and power loss in cabling is eliminated. For example, with 100 feet of 12 gauge, 2 conductor speaker cable, the damping factor is reduced from 250 (8ohm load) to 22! To maintain a damping factor of 50, number 5 wire would be required! Clearly the advantages of putting the amplifier in the speaker cabinet can make a major difference in the overall sound quality.

Installation of BGW self powered subwoofer systems is simplified through the use of summing amplifier inputs. Balanced, line level, wideband signals from the system's stereo mixer are connected via XLR type connectors, making it "plug-and-play."

Both models also include a high powered relay for remote control of system power. A remote mounted LED can be used for a power-on indicator as well.

You Deserve a Great Performance
No matter what your application, if your performance is critical, then you deserve BGW Power. No other manufacturer gives you as much acoustical power for the money as BGW... relied upon throughout the world. Go for the Best... Go for BGW.