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2. Audio power amplifier - Wikipedia

   en.wikipedia.org/wiki/Audio_power_amplifier

   A small coffeehouse may have a single power amp driving two PA speakers. A nightclub may have several power amps for the main speakers, one or more power amps for the monitor speakers (pointing towards the band) and an additional power amp for the subwoofer. A stadium concert may have a large number of power amps mounted in racks.

3. 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 ...

4. Audio power - Wikipedia

   en.wikipedia.org/wiki/Audio_power

   For most audio applications more power is needed at low frequencies. This requires a high-power amplifier for low frequencies (e.g., 200 watts for 20–200 Hz band), lower power amplifier for the midrange (e.g., 50 watts for 200 to 1000 Hz), and even less the high end (e.g. 5 watts for 1000–20000 Hz).

5. List of Bose home audio products - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_home_audio...

   The equaliser, connected between pre-amplifier output and power amplifier input, effectively flattens the speaker frequency response. [26] Each speaker has nine identical 4-inch drivers per channel — one on the front for direct sound, and eight on the rear designed to produce reflected sound. [23] [27]

6. Bass amplifier - Wikipedia

   en.wikipedia.org/wiki/Bass_amplifier

   For rehearsals, studio recording sessions, or small club performances, electric and upright bass players typically use a "combo" amplifier, which combines a preamplifier, tone controls, a power amplifier and a speaker (or multiple speakers) in a single cabinet.

7. Peavey Electronics - Wikipedia

   en.wikipedia.org/wiki/Peavey_Electronics

   The TNT Series bass amplifier first entered the market in the late 1970s as a 45-watt combo with one 15-inch speaker. The high-power TNT bass amplifier series was introduced as a 150–200 watt bass combo primarily equipped with a Scorpion or Black Widow 15-inch woofer.