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2. McIntosh MC-2300 - Wikipedia

   en.wikipedia.org/wiki/McIntosh_MC-2300

   Design. Physically, the MC-2300 is a very large and sturdy amplifier, measuring 10.5 in (26.7 cm) high x 19 in (48.3 cm) wide x 17 in (43.2 cm) deep, and weighing an impressive 128 lbs (58 kg). During its production run, 4545 units were made. [2] Today, the MC-2300 remains a very sought-after amplifier for audiophiles and collectors.

3. Peavey 5150 - Wikipedia

   en.wikipedia.org/wiki/Peavey_5150

   Peavey 6505 head and cab. The Peavey 5150 is a vacuum tube based guitar amplifier made by Peavey Electronics from 1992 on. The amplifier was initially created as a signature model for Eddie Van Halen. After Van Halen and Peavey parted ways in 2004, the name was changed to Peavey 6505 in celebration of Peavey's 40th anniversary (1965–2005).

4. Class-D amplifier - Wikipedia

   en.wikipedia.org/wiki/Class-D_amplifier

   The first Class-D amplifier was invented by British scientist Alec Reeves in the 1950s and was first called by that name in 1955. The first commercial product was a kit module called the X-10 released by Sinclair Radionics in 1964. However, it had an output power of only 2.5 watts. The Sinclair X-20 in 1966 produced 20 watts but suffered from ...

5. Bridged and paralleled amplifiers - Wikipedia

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

   A bridge-parallel amplifier topology is a hierarchical combination of the bridged and paralleled amplifier topologies, with at least four single-ended channels needed to produce one bridge-parallel channel. The two topologies complement each other in that the bridging allows for higher voltage output and the paralleling provides the current ...

6. Marshall JCM800 - Wikipedia

   en.wikipedia.org/wiki/Marshall_JCM800

   The amplifier was equipped with EL34 valves (tubes) for amps sold in the UK and 6550 tubes for amps exported to the United States. The JCM800 is considered a "hot" amplifier because it has more gain stages than comparable amplifiers. There is a difference between the early 2203/2204 and the later dual channel models 2205/2210 models.

7. NAD 3020 - Wikipedia

   en.wikipedia.org/wiki/NAD_3020

   NAD 3020. The NAD 3020 is a stereo integrated amplifier by NAD Electronics, considered to be one of the most important components in the history of high fidelity audio. [1] Launched in 1978, this highly affordable product delivered a good quality sound, which acquired a reputation as an audiophile amplifier of exceptional value.