Speaker Diaphragms: Aftermarket vs Genuine

How can you tell if you are purchasing a Genuine Factory or an Aftermarket Diaphragm” As [...]

JBL Reverse Polarity

In the golden olden days of speakers, the issue of whether the first motion of [...]

Do People Hear At Different Frequencies?

One Hertz (Hz) is one vibration per second. Higher Hertz values equate to higher pitched [...]

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Gender Hearing Differences

In a study of 350 newborn baby girls and boys, Professor Jane Cassidy at Louisiana [...]

Over the Tannoy

Tannoy Ltd, an English manufacturer of loudspeakers and public-address (PA) systems, began in 1926 under the Tulsemere Manufacturing Company. [...]

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Under Powering Can Cause Speaker Damage

Any speaker can be damaged with too much power. Low Power Can Damage all speakers, but especially High [...]

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DCM Time Window 6″ Recone

We recently reconed these 6″  AD7066 from a DCM Time Window. The woofers received new [...]

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What does a Frequency Response Curve mean

Frequency is the number of sound waves that pass a fixed receptor, your ear for [...]

How To Understand Impedance

Speaker Impedance varies with frequency. You will often see Impedance measured in ohms using Ω (the Greek [...]

Cerwin-Vega Historical Perspective

Cerwin-Vega – From the Beginning In the last 50 years, Cerwin-Vega has grown from a [...]

What’s Old is New Again

JBL is getting ready to launch the new Everest DD66000. It is well named because [...]

How Did JBL Get Its Name?

James Bullough Lansing, an obsessed and depressed genius, invented everything he could including his  name.  [...]

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How To…

  We have one of the most comprehensive How to guides on the web. Let [...]

Fraser Speaker Recone

Vintage Speaker Repairs our our Specialty.

All Brands

We Repair ALL The Following Brands and many more. If you don’t see your speaker [...]

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How To Measure the Cone Depth

Measure the Cone Depth from the lowest part of the Throat where it attaches to [...]

How To Open Cone Throat for Larger Voice Coil

Use voice coil to outline the voice coil opening required on the cone. With a utility [...]

How To Wire Your Speakers in Series

Series Wiring links your speakers together Positive terminal to Negative terminal and the resistances of all [...]

How to Wire Your Speakers in Parallel

Parallel Wiring combines all positive leads together and all negative leads together. This reduces impedance and [...]

How to Measure a Voice Coil