Affordable, Quality Audio Repairs & Restorations

Phone: 519-513-1084

Email: repairs@dnaelectronics.ca

Address: 15 Shaftsbury Dr. Kitchener, ON, Canada

Quality, Reliable Restorations by Experienced Father & Son Technicians. We Take Pride in our Workmanship.

Receivers | Power Amplifiers | Integrated Amplifiers | Preamplifiers | Tuners

D 'n A Topics & Resources

Restoration Information

General information about our restoration work, and pricing information for various models.

Audio Specifications Database

We are compiling a database of audio equipment specifications gleaned from our annual equipment directory magazines, owner's manuals, service manuals, etc.

Audio Picture Gallery

Pictures of some of the equipment we've worked on, with occasional commentary.

Our Testing Procedures

We test the audio components we restore to ensure they perform at least as well as expected. This is both an overview of our measuring procedures, and an attempt to make clear exactly what is being measured.

FAQ

Answers to some frequently asked questions.

Adcom GFA-555II Gallery

The Adcom GFA-555II is a 200 watts per channel power amplifier. You can check out all the specs here.

If you have an Adcom GFA-555II amplifier that is in need of repair, call us at (519)513-1084, or email your enquiry to repairs@dnaelectronics.ca.

The GFA-555II has a toroidal power transformer. A single transformer secondary is independently rectified and filtered by 15000 microfarad filter cans for both the left and right channels.

Sponsored Link

Adcom manufactures affordable, quality audio power amplifiers, preamplifiers, and tuners.

The GFA-555II is bridgeable for mono operation at up to 600 watts output.

D 'n A Electronics is a Father & Son business located in Kitchener, Ontario, Canada. We specialize in restoring hi-fidelity audio power amplifiers, integrated amplifiers, preamplifiers, receivers, and tuners. We've been repairing vintage audio equipment since long before it was considered vintage! It is our goal, and pleasure, to reliably restore hi-fi audio equipment to original operating condition (or better!). We accept shipments from across Canada, and many customers from Kitchener, Waterloo, Cambridge, Guelph, Hamilton, London, Toronto and surrounding areas find us to be within convenient driving distance. Thank-you for visiting our website, we look forward to serving you!