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We have condensed the sub woofers into one enclosure to save space not to sacrifice sound quality. The tune port enclosure design is just set to different specifications using smaller area in enclosure design. The speakers are the same as our extended labyrinth design, but the space they require is much smaller.

LOWER MID-RANGE 8" ENCLOSURE: Next to the High Frequency and Mid Range Driver the eight inch speaker is very important. It completes the FOCAL POINT of the High Frequency drivers performance. It supplies the lower mid range and upper low end of the bass response. This is the point where the guitar exists the pluck of a violin string, the attack of a bass fettle, the nuances of bass response. Brings out detail and crispness in the response. Five inch High Resolution Speaker / Tuned Port enclosure / Power Frequency Response 450Hz to 800Hz.Sensitivity 95"db" (1W1M) Cone POLYKEVLAR K-2 Sandwich cone (per E.I.A. Standards RS 426A) 100 watts continuous duty 200 watts peak. / Net weight of Driver 10 lbs.

EXTENDED Tuned port sub enclosure: 12in. woofer True acoustic response requires relativity large enclosures to reproduce the wave at this set of frequencies. A true wave in this area can be over 12ft. in length. Most all brass, woodwinds, strings, tenor, baritone and bass voices appear in this range. This enclosure reproduces a round response that gives the program material a even fullness. Frequency response 175Hz to 450Hz. / 2.5in. Voice Coil / High output extended length / Sensitivity 98"db"(1W1M) / Suspension Ribbed KEVLAR fiber composite surround (per E.I.A. standards RS 426A) 300watts continuous duty / 1200watts peak / net weight of driver 25lbs.

ULTRA LOW END EXTENDED Tuned port sub enclosure: 15 or 18in. woofer; Bass response is a very subtle statement. To reproduce sound waves at this set of frequencies the sound must be tight well rounded and articulate, not muddy. The largest enclosure for the largest response. A wave of a low "A" on a piano (27Hz) is over 28ft. long. The enclosure is rolled off at each end but it can reproduce as low as 37Hz! Depending on program source. To reproduce these frequencies the enclosure must have correct volume and massive amounts of strength. Material density and cross bracing so the enclosure's natural resonance is handled properly. The low end of a Symphony Orchestra is a very complicated detailed sound source to reproduce. Frequency Response 37Hz to 175Hz. / 4in. Voice Coil / High output extended length (4 inch) / Sensitivity 96"db"(1W1M)(per E.I.A. standards RS 426A) / Suspension Ribbed KEVLAR fiber composite / 600watts continuous duty / 1600watts peak / net weight of driver 25lbs.

Specifications are one thing but we have used these specifications for over thirty years. We have speakers still working after twenty five years, the speakers themselves are bullet proof and the high frequency drivers are extreme high quality.

Power amplifier specifications:

MultipointUSA's Power Amplifiers: are manufactured to match and power our sound monitors. By using remote power amplifiers to power our enclosures we where able to use larger labratory grade power supplies. Power based on true power output operating with specification based on continuous R.M.S. output. They come in three types running in continuous duty for the sub woofer enclosure; Mid-Range unit at 117"db" Dynamic range 8inch x 100watts R.M.S. 200 watts peak power; Sub-frequency units 12inch x 15 or 18inch at 107"db" Dynamic range; 2 x 150watts R.M.S. 300watts peak. 600watts punch