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The L pad attenuates the signal by having two separate rheostats connected in an "L" configuration (hence the name). One rheostat is connected in series with the loudspeaker and, as the resistance of this rheostat increases, less power is coupled into the loudspeaker and the loudness of sound produced by the loudspeaker decreases.
Sixteen ohm drivers (or loudspeakers systems) would be connected to the 16-ohm tap, 8 ohm to the 8 ohm tap, etc. This is significant since the ratio between the loudspeaker impedance and the amplifier's impedance at a particular frequency provides damping (i.e., energy absorption) for the back EMF generated by a driver.
Constant-voltage speaker systems are also commonly referred to as 25-, 70-, 70.7-, 100 or 210-volt speaker systems; distributed speaker systems; or high-impedance speaker systems. In Canada and the US, they are most commonly referred to as 70-volt speakers. In Europe, the 100 V system is the most widespread, with amplifier and speaker products ...
The Bandit amplifiers were introduced in 1980. The earliest model Bandits had a power rating of 50 watts RMS into an 8 ohm speaker. The power rating has gradually increased over time, and current model Bandits are rated at 80 watts RMS into 8 ohms, and 100 watts RMS into 4 ohms.
Headphone outputs and line outputs are sometimes confused. Different make and model headphones have widely varying impedances, from as little as 20 Ω to a few hundred ohms; the lowest of these will have results similar to a speaker, while the highest may work acceptably if the line out impedance is low enough and the headphones are sensitive ...
The speaker was innovative in other ways as well and was produced, relatively unchanged, for about 10 years. LEAK 2060 loudspeaker with a sandwich cone woofer The original Leak 'Sandwich' hi-fi speaker was a large two-way system employing a 330 mm (13 in) low frequency element, with the sandwich cone, cambric roll suspension, and cast aluminium ...
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Typical push–pull audio tube power amplifier, matched to loudspeaker with an impedance-matching transformer. Audio amplifiers typically do not match impedances, but provide an output impedance that is lower than the load impedance (such as < 0.1 ohm in typical semiconductor amplifiers), for improved speaker damping.