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2. Bi-amping and tri-amping - Wikipedia

   en.wikipedia.org/wiki/Bi-amping_and_tri-amping

   Bi-amping - An active crossover with two amplifiers.. Bi-amping and tri-amping is the practice of using two or three audio amplifiers respectively to amplify different audio frequency ranges, with the amplified signals being routed to different speaker drivers, such as woofers, subwoofers and tweeters.

3. Home theater in a box - Wikipedia

   en.wikipedia.org/wiki/Home_theater_in_a_box

   A home theater in a box (HTIB) is an integrated home theater package which "bundles" together a combination DVD or Blu-ray player, a multi-channel amplifier (which includes a surround sound decoder, a radio tuner, and other features), speaker wires, connection cables, a remote control, a set of five or more surround sound speakers (or more ...

4. Digital Sound System 80 - Wikipedia

   en.wikipedia.org/wiki/Digital_Sound_System_80

   Subwoofer: 5.25" Dual voice coil active woofer, 6" wOOx passive radiator; Left/Right Speakers: 3" full range, magnetically shielded; Power supply (subwoofer only): AC 110-220 V, 50–60 Hz, 310 mA @ 220 V; Electronic crossover frequency (subwoofer to a speaker): 160 Hz; Electronic crossover filter slopes: Subwoofer: -18 dB/octave at 160 Hz

5. Powered speakers - Wikipedia

   en.wikipedia.org/wiki/Powered_speakers

   An active full-range loudspeaker. Powered speakers, also known as self-powered speakers and active speakers, are loudspeakers that have built-in amplifiers.Powered speakers are used in a range of settings, including in sound reinforcement systems (used at live music concerts), both for the main speakers facing the audience and the monitor speakers facing the performers; by DJs performing at ...

6. Subwoofer - Wikipedia

   en.wikipedia.org/wiki/Subwoofer

   From about 1900 to the 1950s, the "lowest frequency in practical use" in recordings, broadcasting and music playback was 100 Hz. [9] When sound was developed for motion pictures, the basic RCA sound system was a single 8-inch (20 cm) speaker mounted in straight horn, an approach which was deemed unsatisfactory by Hollywood decisionmakers, who hired Western Electric engineers to develop a ...

7. Linn Isobarik - Wikipedia

   en.wikipedia.org/wiki/Linn_Isobarik

   The Linn Isobarik DMS (with in-built crossover) in a domestic setting The Linn Isobarik , nicknamed " Bariks " or " Briks ", is a loudspeaker designed and manufactured by Linn Products . The Isobarik is known for both its reproduction of low bass frequencies and being very demanding on amplifiers.