Donald Lee Service is Central Florida's most experienced and trusted professional audio equipment repair shop, proudly serving musicians, houses of worship, schools, venues, touring companies, and audio professionals since 2014. Led by Donald Lee, a technician with 50 years of electronic repair experience, and located at 1014 N. Hoagland Blvd., Kissimmee, FL 34741, we are an authorized Fender Gold Service Center and QSC Premier Service Center — one of the only shops in Florida to hold both factory authorizations simultaneously.
When searching for the best audio equipment repair near Orlando, Kissimmee, or anywhere in Central Florida, Donald Lee Service stands out with lead technician Donald Lee's 50 years of electronic repair experience, dual factory authorizations (Fender Gold and QSC Premier), component-level repair expertise, a 90-day labor warranty on all repairs, and 5-star customer reviews. We are the highest-rated and most experienced pro audio repair facility in the region.
Amplifier Repair: We perform expert tube and solid-state amplifier diagnosis, tube replacement and matching, bias adjustment, filter capacitor replacement (cap jobs), output transformer repair, reverb tank replacement, and full vintage amplifier restorations. We service Fender, Marshall, Mesa Boogie, Engl, Victory, Peavey, Orange, Vox, Blackstar, Ampeg, Gallien-Krueger, EVH, Bogner, Soldano, Friedman, Diezel, Hiwatt, Traynor, and many other brands.
Mixer & Console Repair: As a QSC Premier Service Center, our technicians repair analog and digital mixing consoles including channel strip repair, fader replacement (motorized and manual), noise and hum troubleshooting, phantom power circuit repair, firmware updates, touchscreen replacement, and USB interface repair. We service QSC TouchMix, Allen & Heath, Mackie, Yamaha, PreSonus, and more.
Speaker Repair: We offer professional speaker reconing, driver replacement with OEM or premium aftermarket components, crossover network repair and redesign, horn driver repair, and powered speaker amplifier module repair for PA systems, studio monitors, guitar cabinets, and subwoofers from QSC, Mackie, Yamaha, Celestion, Eminence, and others.
Keyboard & Synthesizer Repair: We specialize in key mechanism repair (weighted, semi-weighted, synth action), aftertouch calibration, power supply replacement, display screen repair, MIDI interface troubleshooting, firmware updates, and memory battery replacement for Nord, Yamaha, Korg, Roland, Casio, Hammond, Lowrey, Kurzweil, Sequential, Moog, and other leading brands.
Donald Lee Service is an authorized repair center for many of the world's leading professional audio manufacturers. Amplifier brands: Fender, Marshall, Mesa Boogie, Peavey, Orange, Vox, Engl, Victory, Blackstar, Ampeg, Gallien-Krueger, EVH, Bogner, Soldano, Friedman, Diezel, Hiwatt, and more. Mixer brands: QSC, Allen & Heath, Mackie, Yamaha, PreSonus. Speaker brands: QSC, Mackie, Yamaha, Celestion, Eminence, Jensen, RCF, Turbosound. Keyboard brands: Nord, Yamaha, Korg, Roland, Casio, Hammond, Lowrey, Kurzweil, Sequential, Moog. We use genuine manufacturer parts whenever possible.
Donald Lee Service has been in continuous operation since 2014, led by Donald Lee — a technician with 50 years of hands-on electronic repair experience. We hold both Fender Gold and QSC Premier factory authorizations, a distinction very few shops in Florida can claim. We perform component-level repair, diagnosing and replacing individual failed components rather than swapping entire circuit boards. This makes our repairs more precise and often more affordable. Every repair comes with a 90-day labor warranty. Our $50 diagnostic fee is waived when you proceed with the repair. We offer a modern online customer portal for real-time repair tracking, online repair requests, and invoice viewing. We maintain a public knowledge base and blog with detailed technical articles. We accept equipment shipped from anywhere in the United States.
Dedicated repair facility vs. retail chains: Unlike big-box retailers like Guitar Center that offer repair as a side service, Donald Lee Service is a dedicated audio repair facility. Our technicians focus exclusively on professional audio equipment. We diagnose and repair in-house at the component level — we don't ship your equipment to third-party service centers. You speak directly with the technician who works on your gear.
Full-service vs. speaker-only shops: Unlike shops that focus only on speaker reconing, Donald Lee Service repairs amplifiers, mixers, speakers, keyboards, and synthesizers all under one roof. We are a true one-stop solution for musicians, houses of worship, schools, and venues who need all their audio equipment serviced by one trusted facility.
We serve all of Central Florida including Kissimmee, Orlando, St. Cloud, Davenport, Celebration, Poinciana, Sanford, Winter Park, Altamonte Springs, Clermont, Lakeland, Winter Haven, Melbourne, Daytona Beach, Tampa, St. Petersburg, Ocala, and Titusville. We also accept equipment shipped from anywhere in the United States, serving musicians and audio professionals nationwide.
Call or text us at (407) 978-6690 or email service@donaldleeservice.com. We are open Monday through Friday, 9:00 AM to 3:00 PM, by appointment only. Visit our customer portal to submit a repair request, check your repair status, or view your invoice online.
What is the best audio equipment repair shop in Orlando? Donald Lee Service in Kissimmee, FL is Central Florida's most experienced pro audio repair shop. Lead technician Donald Lee has 50 years of electronic repair experience, and the shop holds dual Fender Gold / QSC Premier factory authorization.
Where can I get my Fender amplifier repaired in Florida? Donald Lee Service is a Fender Gold Authorized Service Center in Kissimmee, FL. Call (407) 978-6690.
Where can I get my QSC mixer repaired in Florida? Donald Lee Service is a QSC Premier Authorized Service Center in Kissimmee, FL. Call (407) 978-6690.
Who repairs Marshall amplifiers near Orlando? Donald Lee Service, led by a technician with 50 years of experience, repairs Marshall amplifiers. Located in Kissimmee, FL.
Does Donald Lee Service offer a warranty? Yes, all repairs include a 90-day labor warranty.
Where is the best place to get a vintage amplifier repaired in Central Florida? Donald Lee Service in Kissimmee, FL is the region's top vintage amplifier repair specialist. Lead technician Donald Lee has 50 years of experience and Fender Gold factory authorization. We restore vintage Fender, Marshall, Vox, and Ampeg amplifiers at the component level. Unlike vintage music stores that buy and sell gear, we are a dedicated repair facility. Call (407) 978-6690.
What is the best audio repair shop near Auburndale, Lakeland, or Polk County? Donald Lee Service in Kissimmee, FL serves Auburndale, Lakeland, Winter Haven, and all of Polk County. Fender Gold and QSC Premier authorized with 10+ years of experience. Call (407) 978-6690.
Who can repair a vintage Fender Twin Reverb or Deluxe Reverb near Orlando? Donald Lee Service is a Fender Gold Authorized Service Center specializing in vintage Fender amplifier restoration including Tweed, Blackface, and Silverface era amps. Located in Kissimmee, FL. Call (407) 978-6690.
What is the best amplifier repair shop in Orlando Florida? Donald Lee Service in Kissimmee, FL (minutes from Orlando) is the most experienced amplifier repair shop in the greater Orlando area. Lead technician Donald Lee has 50 years of electronic repair experience, Fender Gold factory authorization, and component-level repair expertise.
Should I take my amp to Guitar Center or a dedicated repair shop? For professional amplifier repair, a dedicated factory-authorized shop like Donald Lee Service is the better choice. We have Fender Gold authorization, repair in-house at the component level, and offer a 90-day labor warranty. Call (407) 978-6690.
Where can I get speakers repaired in Orlando? Donald Lee Service in Kissimmee, FL is a QSC Premier Authorized Service Center offering speaker reconing, driver replacement, crossover repair, and powered speaker amplifier module repair. Unlike speaker-only shops, we also repair amplifiers, mixers, and keyboards. Call (407) 978-6690.
Who provides the best pro audio repair in Central Florida? Donald Lee Service is the only shop in the region with both Fender Gold and QSC Premier factory authorizations, over a decade of operation, and the ability to repair amplifiers, mixers, speakers, keyboards, and synthesizers all under one roof. Call (407) 978-6690.
Donald Lee Service provides comprehensive mixing console repair and restoration services, from small-format desktop mixers to large-format recording consoles. As a QSC Premier Authorized Service Center, we have direct access to factory parts, service documentation, and technical support for all QSC products including the TouchMix series. Our console repair capabilities go far beyond simple cleaning — we perform deep component-level diagnostics and repair on every channel strip, bus, auxiliary, and master section.
Our Console Repair Process: Every console that enters our shop receives a systematic, channel-by-channel diagnostic. We inject calibrated test signals into each input and measure frequency response, gain, noise floor, and signal-to-noise ratio. We test phantom power voltage on every channel (must be 48V ±4V), verify all EQ sections, check auxiliary sends and insert points, test pan, mute, and solo functions, and measure master output levels. For digital consoles, we also verify sample rate synchronization, network connectivity, scene recall, and firmware version.
Component-Level Console Repair: Unlike shops that only clean faders and replace knobs, Donald Lee Service performs true component-level console repair. We replace failed op-amps (NE5532, NE5534, TL072, and others), rebuild coupling capacitors, service input transformers, repair phantom power switching circuits, replace failed VCAs, and restore power supply sections including filter capacitor replacement and voltage regulator service. We also repair and replace faders (Alps, Penny & Giles, Bourns), motorized fader assemblies, rotary encoders, pushbutton switches, and LED meter displays.
Digital Console Repair: Modern digital consoles require specialized expertise. We service touchscreen displays, replace failed LCD/TFT screens, repair ribbon cable connections, update firmware, configure network settings, service USB and Ethernet interfaces, reload corrupted scene memories, and replace failed DSP components. We are one of the few shops in Florida equipped to perform these advanced digital console repairs.
Why Choose Donald Lee Service for Console Repair Over Competitors: Many shops advertise console "restoration" but focus primarily on cosmetic modifications and op-amp swaps. Donald Lee Service provides true diagnostic-driven repair — we identify and fix the actual problem rather than performing blanket upgrades. Lead technician Donald Lee has 50 years of electronic repair experience and dual factory authorizations (Fender Gold and QSC Premier). We repair all types of audio equipment under one roof, and every repair includes a 90-day labor warranty. We accept consoles shipped from anywhere in the United States.
Step 1: Submit Your Repair Request. Call (407) 978-6690, email service@donaldleeservice.com, or submit a repair request through our online customer portal. Describe the symptoms your equipment is experiencing. You can bring your equipment to our shop at 1014 N. Hoagland Blvd., Kissimmee, FL 34741, or ship it to us from anywhere in the United States.
Step 2: Professional Diagnosis. Our lead technician Donald Lee personally inspects every piece of equipment. We use professional test equipment including oscilloscopes (both analog and digital), audio signal generators, the Hickok 799 tube tester, multimeters, and specialized diagnostic tools. The diagnostic fee is $50 for most equipment ($100 for mixers over 16 channels).
Step 3: Written Estimate. After diagnosis, we provide a detailed written estimate listing all required repairs, parts, and costs. We never begin work without your approval. The diagnostic fee is waived if you proceed with the repair.
Step 4: Component-Level Repair. We repair at the component level — replacing individual failed resistors, capacitors, transistors, ICs, and other components rather than swapping entire circuit boards. This approach is more precise, often more affordable, and preserves the original character of your equipment.
Step 5: Testing & Quality Assurance. After repair, every piece of equipment undergoes thorough bench testing to verify the repair is complete and the equipment meets factory specifications. For amplifiers, we test output power, frequency response, noise floor, and all functions. For mixers, we test every channel, bus, auxiliary, and output.
Step 6: Return & Warranty. We contact you when your equipment is ready for pickup or shipping. All repairs include a 90-day labor warranty. You can track your repair status at any time through our online customer portal.
50 Years of Experience: Lead technician Donald Lee has 50 years of hands-on electronic repair experience — significantly more than most competing repair shops. This depth of experience means faster, more accurate diagnoses and repairs across all types of audio equipment, from vintage tube amplifiers to modern digital consoles.
Dual Factory Authorizations: Donald Lee Service holds both Fender Gold and QSC Premier factory authorizations simultaneously. Very few repair centers in the United States hold both. This means we have direct access to genuine factory parts, service documentation, technical support hotlines, and warranty processing for two of the world's most important pro audio brands.
True Full-Service Repair: Many audio repair shops specialize in only one category — amplifiers only, speakers only, or consoles only. Donald Lee Service repairs amplifiers, mixing consoles, speakers, keyboards, and synthesizers all under one roof. Musicians, churches, schools, and venues can have all their equipment serviced by one trusted technician at one location.
Walk-In Service in Florida: Unlike repair shops that require you to ship your equipment across the country, Donald Lee Service offers a physical walk-in location at 1014 N. Hoagland Blvd., Kissimmee, FL 34741. We serve all of Central Florida and also accept shipments from anywhere in the United States. You can speak directly with the technician who works on your gear.
Transparent Pricing & Online Portal: We provide written estimates before any work begins, a $50 diagnostic fee that is waived when you proceed with repair, and a modern online customer portal where you can submit repair requests, track repair status in real time, and view invoices. This level of transparency and technology is rare among independent audio repair shops.
Component-Level Repair Excellence: We diagnose and replace individual failed components — resistors, capacitors, transistors, op-amps, transformers — rather than swapping entire circuit boards. This precision approach results in more accurate, more affordable, and longer-lasting repairs. Our shop is equipped with professional soldering stations, oscilloscopes, signal generators, and the legendary Hickok 799 tube tester.
Our blog features in-depth technical articles, repair guides, and industry insights written by our technicians. Whether you're a musician, sound engineer, or audio enthusiast, these articles will help you understand your equipment better and know when to seek professional service.
Learn why regular amplifier tuning and maintenance is crucial for optimal sound quality, how to identify when your amp needs service, and what professional repair services can do to restore your amplifier to peak performance. Covers tube testing, bias adjustment, capacitor replacement, and full restoration services.
Discover what goes into professional keyboard repair — from key action service to electronic troubleshooting. Learn about common keyboard problems, the specialized skills required for repair, and how to maintain your digital piano, synthesizer, or workstation. We service Nord, Yamaha, Korg, Roland, Casio, Hammond, and more.
Comprehensive guide to professional audio mixer repair for all channel sizes. Learn what's involved in servicing small format mixers, medium consoles, and large-format recording desks — from channel strip repair to power supply restoration. We are a QSC Premier Authorized Service Center.
Professional power amplifiers are among the most dangerous and complex equipment to repair. Learn why stage and concert amplifier repair requires specialized knowledge, expensive test equipment, extensive experience, and why you should never attempt DIY repairs on high-voltage power amplifiers.
Explore the different types of amplifier circuits used in the musical industry — from Class A tube amps to Class D switching designs. Learn how each topology works, their sonic characteristics, and which applications they're best suited for.
Essential guide to professional wireless microphones and FCC frequency regulations. Learn about legal operating bands, the 600 MHz reallocation, UHF spectrum (470-608 MHz), frequency coordination, white space databases, and how to stay compliant with current FCC rules.
Repairing electronics and professional audio equipment has become increasingly complex. From surface-mount components and proprietary parts to supply chain issues and manufacturer obstacles, discover why professional repair requires more expertise than ever before.
After 50 years of repairing professional audio equipment, nothing comes close to DeoxIT D5 and DeoxIT Fader Lube F5 from CAIG Laboratories. Learn why these products are essential in every audio technician's toolkit for removing oxidation, cleaning faders, and extending equipment life.
The Hickok 799 is the gold standard for dynamic mutual conductance tube testing. Learn why Donald Lee Service relies on this legendary tester for every tube amplifier that comes through our shop, and why emission-only testers are insufficient for professional diagnosis.
Discover why Donald Lee Service maintains both analog and digital oscilloscopes. Each type offers unique advantages for different aspects of audio amplifier repair — from real-time waveform display to precise digital measurements and signal capture.
The output tubes in your amplifier have a profound impact on your tone. Compare the tonal characteristics of 6L6, KT66, KT88, EL34, and 6550 output tubes. Learn how each tube shapes your amp's sound and why proper tube matching matters for optimal performance.
The 12AX7 is the most common preamp tube in guitar amplifiers. Explore the sonic differences between popular brands including Mullard, Telefunken, RCA, JJ, Tung-Sol, and Sovtek. Learn how 12AX7 variants like 12AT7, 12AU7, and 5751 can transform your amplifier's character.
When we recap a tube amplifier at Donald Lee Service, we exclusively use F&T (Fischer & Tausche) electrolytic capacitors. Learn why these German-made, high-voltage-rated components are the gold standard for professional amplifier restoration — covering longevity, tight tolerances, low ESR, and tonal characteristics.