Category Archives: Technically Speaking

JBL L100 Parts and Repair

The JBL L100 series speaker was the consumer version of the popular 4400 Series Studio [...]

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Beam sound

A transducer can be made to project a narrow beam of ultrasound that is powerful [...]

How a Speaker works detailed

The key working components of a loudspeaker are shown in the diagram below. When an [...]

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Speaker Repair “No No”: What Not To Do

When you recone a speaker you must set the spider and cone level. In our [...]

Polk SL1000, SL2000 Tweeter vs SL2500

The original Polk SL1000 tweeter had an aluminum faceplate. That tweeter is no longer available. [...]

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Magnetic Personality

Pictured are two JBL speakers. The keys are magnetically attracted to one, but not the [...]

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New Voice Coil vs. Burnt Voice Coil

The picure displays the visual differences between a brand new voice coil (left) and an [...]

How Long Will Your Speakers Last?

I saw an article in The Audiophiliac asking “How long should your hi-fi last“.  It says: [...]

Speaker Diaphragms: Aftermarket vs Genuine

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

How To Wire Your Speakers in Series

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

JBL 2408H vs 2408H-1 Drivers

What’s the difference between the JBL 2408H and 2408H-1 drivers? The 2408H-1 has a different [...]

Knowing Cone Drivers: How They Work

Knowing Cone Drivers: How They Work, Understanding Key Data & Specs What’s really going on [...]

How to Wire Your Speakers in Parallel

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

JBL 2414H vs 2414H-1 Drivers

What are the differences between the JBL 2414H and 2414H-1 drivers? These drivers have different [...]

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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How To Understand Impedance

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

JBL Reverse Polarity

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

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Piezoelectric speakers

 Piezoelectric transducers, frequently used as beepers in watches etc., are often used as tweeters in [...]

How do Speakers Work?

A speaker converts electrical energy to mechanical/acoustical energy. It uses a coil of wire, which [...]

speaker info- definitions

 A loudspeaker, or simply speaker, is an electromechanical transducer which converts an electrical signal into [...]