Velleman K2572 Stereo Preamplifier Kit

Brand:| Model: K2572
Providing up to 40 dB of gain, this stereo preamp kit can overcome gain mis-match issues between source and amp, or makes a great foundation for a home audio preamplifier.
  • Kit includes PCB, resistors, capacitors, trim potentiometers and JFET IC
  • Up to 40 dB of gain allows the perfect match between source and amplifier
  • Easy-to-assemble kit has only 18 components to solder
Part # 
Weight: 0.2 lbs.  
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Buy 4-up$15.71
Part # 320-262
Qty:  EA
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Product Details

Velleman K2572 Stereo Preamplifier Kit

Optimum gain matching helps your amplifier get the most performance from your low-level sources. The K2572 preamplifier kit is ideal for solving specific gain mis-match problems or building a custom stereo preamplifier from scratch.

Soldering will be necessary for assembly. A power supply and enclosure will be required for a complete, standalone stereo preamplifier.

Specifications: • Required power supply: 10~30 VDC regulated (not included) • Current consumption: 5 mA (typical) • Maximum input voltage: 50 mV RMS • Output impedance: 1K ohms • Input signal: 5-10 mV • PCB dimensions: 1-3/4" x 2-5/8".

Product Specifications
  • Project Kit TypeAmplifiers & Audio
Velleman K2572 Stereo Preamplifier Kit
  • BrandVelleman
  • ModelK2572
  • Part Number320-262
  • UPC836479009769
  • Product CategoryElectronic Project Kits
  • Unit of MeasureEA
  • Product Rating
    (1 Reviews)
  • Weight0.2 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Velleman K2572 Stereo Preamplifier Kit
Velleman K2572 Stereo Preamplifier Kit is rated 1.0 out of 5 by 1.
Rated 1 out of 5 by from Awful and should be pulledThis unit was constructed to the letter with a strictly regulated supply and sounds terrible. The bass rolls off at around 100hz, there is lots of power supply noise in the audio signal, and the unit sounds clipped at all volume levels. A simple line level preamp is all I needed to drive an amplifier to a slightly higher level. This unit I tried both with the stock components as well as upgrading the coupling caps to Dayton polys, and the cheap resistors to metal oxide 1 watt jobbers. In either case the preamp sounded terrible, and is a kit, so I'm not sure if I can get my money back on this.
Date published: 2014-03-07

Product Q&A

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Velleman K2572 Stereo Preamplifier Kit

Any good to pair with the DTA-2?

just setup the dta2 with a pair of nd91 3.5" speakernot real loud though even turned up full with a large 12v batterywill this preamp run ok added to this combo?
Asked by: couchman
The DTA-2 does not require a preamp. This would be a good match to a 2x8W or 2x15W board amp that we offer however.
Answered by: MattP
Date published: 2013-06-27

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