Hot Glass Audio is dedicated to the repair, modification, and restoration of vintage, vacuum tube audio electronics.

Here at Hot Glass Audio, we specialize in "stock" rebuilds and repairs, "stock" referring to the way that the equipment was fabricated at the time of manufacture, with specifications comparable or exceeding those of the original manufacturer.

We also perform custom modifications that may exceed the performance or specifications of the original manufacturer. Regardless of the choice (stock or modified), Hot Glass Audio is here to serve any of your vintage audio requirements.

Hot Glass Audio has an impressive stock of components, some new, and some highly sought after vintage and NOS components. No two pieces of equipment respond the same to changes in different makes and models of components. Capacitors for instance, can radically alter the way an amplifier will sound, as can resistors, tubes, or transformers. Using newer plastic dielectric film capacitors (ex. polypropylene) in vintage equipment will alter the original sound characteristics, as most were designed around the limitations of Mylar or paper. While a plastic dielectric capacitor may sound great in a newer design, it could sound "bright" or "harsh" in a vintage design. It is for this reason that Hot Glass Audio stocks most makes and models of capacitors and other electronic components. No matter what the design, Hot Glass Audio will have a component to suit your needs.

At Hot Glass Audio, the customer makes the ultimate choice of which components will go into their equipment. We will work with the customer to find the preferences and make recommendations. We believe component selection and matching is an integral part of the restoration process. No two people have identical hearing, and by using different types of components, Hot Glass Audio can tailor sound to a certain degree to meet an individual's tastes.

Please take a look at our parts page for an idea of some of the components we recommend and provide in our restoration, repair, and mod service. Also check back to our site frequently as updates and additional pages are being added.

We look forward to hearing from you.