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2. Bridged and paralleled amplifiers - Wikipedia

   en.wikipedia.org/wiki/Bridged_and_paralleled...

   A bridge-tied load (BTL), also known as bridged transformerless and bridged mono, is an output configuration for audio amplifiers, a form of impedance bridging used mainly in professional audio & car applications. [1] The two channels of a stereo amplifier are fed the same monaural audio signal, with one channel's electrical polarity reversed.

3. 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.

4. Bi-wiring - Wikipedia

   en.wikipedia.org/wiki/Bi-wiring

   Amplifier and loudspeaker with two elements and crossover networks. Top: normal connection. Bottom: bi-wiring. Loudspeaker bi-wired using banana plugs. Bi-wiring is a means of connecting a loudspeaker to an audio amplifier, primarily used in hi-fi systems. Normally, there is one pair of connectors on a loudspeaker and a single cable (two ...

5. Power amplifier classes - Wikipedia

   en.wikipedia.org/wiki/Power_amplifier_classes

   Class-A amplifiers may be used in output stages of op-amps [11] (although the accuracy of the bias in low cost op-amps such as the "741" may result in class A or class AB or class B performance, varying from device to device or with temperature). They are sometimes used as medium-power, low-efficiency, and high-cost audio power amplifiers.

6. Wiring diagram - Wikipedia

   en.wikipedia.org/wiki/Wiring_diagram

   An automotive wiring diagram, showing useful information such as crimp connection locations and wire colors. These details may not be so easily found on a more schematic drawing. A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the ...

7. DIN 72552 - Wikipedia

   en.wikipedia.org/wiki/DIN_72552

   54, +2 53b limit stop field 3, 54e 53c washer pump 53e stop field 1, 2 53i wiper motor with permanent magnet, third brush for high speed Acoustic warning 71 beeper in H 71a beeper out, low 71b beeper out, high 72 hazard lights switch 85c hazard sound on Switches 81 opener 81a 1 out 81b 2 out 82 lock in 82a 1st out 82b 2nd out 82z 1st in 82y 2nd in