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  1. Home
  2. Discontinued Pro Audio, Live Sound, & DJ
  3. Discontinued Recording & Studio
  4. Discontinued Signal Processing
  5. Discontinued Preamps & Channel Strips

Discontinued Preamps & Channel Strips

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Product Type
Amplifiers,
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.

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Pyle Pro PTA2

2 x 40 Watt Mini Stereo Power Amplifier

PTA2 big DISCONTINUED
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Pyle Pro PTA2

2 x 40 Watt Mini Stereo Power Amplifier

• RMS Power: 4 ohm: 8 watts x 2 chan. (1% THD), 4 ohm: 10 watts x 2 chan. (10% THD)
• Total Peak Power: 40 watts x 2 chan.
• Paging And Mixing Modes
• Dimensions: 7.48"W x 5.39"L x 2.76"H

1

• RMS Power: 4 ohm: 8 watts x 2 chan. (1% THD), 4 ohm: 10 watts x 2 chan. (10% THD)
• Total Peak Power: 40 watts x 2 chan.
• Paging And Mixing Modes
• Dimensions: 7.48"W x 5.39"L x 2.76"H

 
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    All About Discontinued Preamps & Channel Strips

    Preamplifiers are electronic devices that boost an audio signal so that it may be recorded or further amplified by a PA system. Sometimes referred to as a control amp, preamplifiers play an important role in live performance as well as in the studio. These preamplifiers may be used instead of, or in conjunction with the onboard preamps in a mixing console channel strip, or recording interface. Preamplifiers play an important role in proper gain staging of an audio signal. * It is important to note that Phantom Power (48v) should never be used with ribbon microphones as they can potentially be damaged. *
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