Author Archives: Cathy
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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Jun
Gender Hearing Differences
In a study of 350 newborn baby girls and boys, Professor Jane Cassidy at Louisiana [...]
Jun
Over the Tannoy
Tannoy Ltd, an English manufacturer of loudspeakers and public-address (PA) systems, began in 1926 under the Tulsemere Manufacturing Company. [...]
3 Comments
Jun
Under Powering Can Cause Speaker Damage
Any speaker can be damaged with too much power. Low Power Can Damage all speakers, but especially High [...]
2 Comments
Jun
DCM Time Window 6″ Recone
We recently reconed these 6″ AD7066 from a DCM Time Window. The woofers received new [...]
3 Comments
Jun
What does a Frequency Response Curve mean
Frequency is the number of sound waves that pass a fixed receptor, your ear for [...]
Jun
How To Understand Impedance
Speaker Impedance varies with frequency. You will often see Impedance measured in ohms using Ω (the Greek [...]
Jun
What’s Old is New Again
JBL is getting ready to launch the new Everest DD66000. It is well named because [...]
Jun
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 Measure the Cone Depth
Measure the Cone Depth from the lowest part of the Throat where it attaches to [...]
Apr
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 [...]
Apr
How to Wire Your Speakers in Parallel
Parallel Wiring combines all positive leads together and all negative leads together. This reduces impedance and [...]
Apr
How To DIY Recone with Unassembled Parts
Recone Instructions – Unassembled Recone Kits PDF – print these instructions Watch Video Step-by-Step [...]
Apr
How To DIY Recone with a Pre-Assembled Kit
One piece kit Recone Instructions Use a utility knife and cut the cone and spider [...]
How To DIY Recone Using EV Fixture
EV Recone Instructions Remove speaker parts: Use a utility knife and cut the cone and [...]
How to Attach Foam to Polypropolene Cone
It is more difficult to get adhesives to bond to a polypropolene cone than to a [...]
Apr
How To Attach Foam to STYROFOAM CONE
If you have a syrofoam cone, request the latex for adhesives instead of the contact [...]