Tannoy Ltd, an English manufacturer of loudspeakers and public-address (PA) systems, began in 1926 under the Tulsemere Manufacturing Company. The Tannoy name is a composite of Tantalum-Lead Alloy which is the material that comprises a solid state rectifier invented by the company’s founder Guy Fountain. During World War II, Tannoy was commissioned to produce and distribute all the communication systems used by British military […]
In a study of 350 newborn baby girls and boys, Professor Jane Cassidy at Louisiana State University found that girls hearing is more sensitive than boys; especially in the 1000- to 4000-Hz range which is the range most important for speech discrimination. Subsequent studies confirmed that girls hear better at higher frequencies and have determined that […]
One Hertz (Hz) is one vibration per second. Higher Hertz values equate to higher pitched sounds. Most people hear between 20 to 20,000 Hertz, but different people can have different hearing ranges. Some people can hear at 22,000 Hz and higher. Genetic inheritance can affect hearing ability just like it affects so many other traits, but […]
In the golden olden days of speakers, the issue of whether the first motion of a cone was inward or outward, or polarity, was not uniform. Eventually it became standardized. Most speakers have an initial outward movement. When JBL started making speakers, they arbitrarily adopted reverse polarity and their speakers had an initial inward movement. This […]
How can you tell if you are purchasing a Genuine Factory or an Aftermarket Diaphragm? As with most speaker related subjects, there are no absolutes, but here are some guidelines that might help you. We mention JBL and Electro Voice below, but this applies to Mackie, EAW, Yamaha, Celestion, Cerwin Vega, Tannoy, etc. etc. (you get […]
Ohm F speaker repairs fall into the Specialty Catagory. These repairs require quite alot more time (and patience) than a standard refoam or recoil. How We Repair: We are able to replace the 12″ foam surround on the outside edge of the cone, and we replace the foam on the inside narrow end of the cone throat with felt. If […]
I saw an article in The Audiophiliac asking “How long should your hi-fi last” It says: “So it makes sense to put the bulk of your hi-fi dollars into speakers, amps, and turntables. There’s almost no chance a technological innovation will come along to render obsolete any of those three items.” I’ve got to agree! There […]
If treated properly, speakers will work for decades although there can be some wear and tear issues because they do have moving parts. We get many perplexed customers with damaged speakers. How did it happen” Common problems: 1- Over or under powering. You can have a 1000 watt speaker, but if you use a 50 […]
If your speaker makes a scratching or buzzing noise that you can hear when you gently and evenly move the cone up and down, one problem might be dirt in the voice coil gap. There are other things that can also cause a speaker to buzz, but if you have isolated it to dirt in the gap, […]
This particular model Boston Acoustic 10″ woofer uses the RFK10 Boston. Other 10″ Boston woofers use the RFK10 Angle. Refoaming with the straight edge attach foam is much more difficult than using the flat or angle attach foams. This is what a successful Boston Refoam looks like. We reused the original dustcap because the customer requested […]
