OUR SERVICES
ENGINEERING
Putting Musical Enjoyment Back in Your Life
We custom-engineer solutions for your specific speakers. We combine years of hands-on experience with today's computer-optimized tools. The human ear and experience matter more than the software. We know how different cone materials and crossover components sound and how steep vs gentle crossover slopes affect phase and clarity. There are things that a computer simply cannot hear.
UPGRADES
Cost-effective modifications for old or new consumer, professional, or audiophile speakers. We can update your beloved speakers or bring them up to audiophile standards. We can refine your professional speakers, smoothing their sound for loud venues and churches. We can upgrade your audiophile speakers, improving phasing and parts quality to enhance soundstage and imaging.
REPAIR
Expert restoration or cost-effective repairs for passive speakers of any type, ensuring they perform their best for many years to come.
MODIFICATIONS
Technical modifications for all speakers, focusing on balanced response and clarity.
A Few Of The Speakers That I've Worked On
Acoustic Research, ADS, Advent, Altec Lansing, B&W, Bag End, Bose, Cerwin Vega, Definitive Technology, Dynaudio, Electro‑Voice, Infinity, JBL, KEF, Klipsch, Magnepan, MartinLogan, Mirage, Mission, Paradigm, Peavey, Polk Audio, PSB, Snell, Tannoy, Vandersteen, Wharfedale, and many more.
Why Upgrade Your System?
Speakers are the heart and soul of your system.
No other component changes your sound as much as your speakers.
Inside every upgrade: precision-matched components for better sound.
Technical Excellence
Engineer and Design
We utilize advanced acoustic modeling and material science to optimize every component of your speaker system for maximum fidelity.
HI-FI MODIFICATIONS
Our team specializes in cost-effective upgrades that transform consumer-grade systems into audiophile-level performers without breaking the bank.
RESTORATION & REPAIR
We restore and upgrade vintage, current, and professional speakers to keep their original vibe while adding refinement, preserving technical integrity, and improving sonic clarity.
Real Results from Real People
Finding Tim was a lifesaver. I spent a month’s salary on some amazing speakers in the 1970s. After more than 50 years of wear, they sounded muddy, but Tim expertly salvaged the original drivers and precision-upgraded the crossovers. Now they deliver incredible imaging and punchy bass. For honest, transformative audio work, Tim is truly the best.
Bill F. – St. Louis
“My B&W Matrix 800s were missing their tweeters and crossovers. Just last year I found Tim, and he matched a great set of Morel tweeters and replicated the original crossovers with improvements for the tweeter and phasing. I couldn’t be happier.”
Mike M. – Las Vegas, NV
“I brought Tim my 55-year-old Pioneer CS-63DX speakers. He replaced all the capacitors with modern, long-lasting ones. I was surprised how affordable it was, and they definitely sound better than ever!”
Dave H. – St. Peters, MO
“Tim built me a custom audiophile speaker with high-sensitivity pro parts in 1986, and I loved them for years. When my 500-watt amplifier failed, it took the speakers with it. Now almost exactly 40 years later I brought Tim my cabinets back and he built another custom 15-inch, 3-way pure audiophile speaker. I can’t believe I own speakers of this quality.”
Tony B. – St. Louis
“My parents have a beautiful pair of JBL L100T speakers and I wanted them upgraded. Tim replaced the foam and did some updates—WOW, these things sound great!”
Rabia H. – Los Angeles, CA
Get in Touch
info@speakerupgrades.com
Location
St. Charles, Missouri | 636-443-5233
