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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).
These benefits are at the cost of high power consumption and concomitant heat generation: minimal stereo power amplifier (e.g. Atma-Sphere S-30) continuously dissipates 400 watts, while practical low-impedance stereo setups approach 1 kilowatt, the power of a small electric heater.
Beam power tetrode: Service: Class-A amplifier, class-B amplifier, class-AB amplifier, (audio amplifiers) Height: 4.25 in (108 mm) Diameter: 1.438 in (36.5 mm) Cathode; Cathode type: Indirectly heated: Heater voltage: 6.3: Heater current: 900 mA: Anode; Max dissipation Watts: 30: Max voltage: 500 Specification listed is for type 6L6-GC: Socket ...
Audio stereo power amplifier made by McIntosh The internal view of a Mission Cyrus 1 Hi Fi integrated audio amplifier (1984) [1]. An audio power amplifier (or power amp) amplifies low-power electronic audio signals, such as the signal from a radio receiver or an electric guitar pickup, to a level that is high enough for driving loudspeakers or headphones.
During the 1970s, the MC-2300 was an expensive piece of audio equipment, with a retail price of $1799 by the time of its discontinuation in 1980. [1] That being said, its outstanding power and sound production quality made it a valued part of many recording studios and although some people prefer the sound of tube amplifiers, the overall greater reliability and freedom from repair of the newer ...
Introduced in 2014, the Power Station is an innovative product design that couples an adjustable reactive load with an internal 50W, 6L6 power amplifier. The Power Station serves as a power attenuator, power booster, and reamping device with a passive line out and posts load amp effects loop. The internal power amp response can be adjusted ...