What is QTS speaker design?

Qtc is the total Q of the speaker in an enclosure including all system resistances. A Qtc of . 707 is the most common and generally produces the flattest frequency response with approximately a 12dB/octave rolloff. Higher values of Qtc will give a peak in the output with a sharper rolloff.

How do you measure speaker QTS?

The traditional way to measure Q is to measure the bandwidth between the -3dB frequencies, then divide the resonant frequency by the bandwidth. For example, if resonance is at 29.6Hz and -3dB frequencies are at 25Hz and 35Hz, then Q is 2.96. This would be Qms in the calculations.

What is QTS in a subwoofer?

Qts is the “overall Q” of the speaker, and is something that dictates motor force and what kind of enclosure a speaker should be in. Low Qts woofers (say . 35 and down) should be in a ported alignment only.

What is QTS Thiele small?

Qes is a measurement of the control from the speaker’s electrical suspension system (the voice coil and magnet). Qts is the “Total Q” of the driver. In general, Qts of 0.4 or below indicates a transducer well-suited to a vented enclosure. Qts between 0.4 and 0.7 indicates suitability for a sealed enclosure.

What is the QTS of a speaker driver?

Qts is called the ‘Total Q’ of the driver and is derived from an equation where Qes is multiplied by Qms and the result is divided by the sum of the same. As a general guideline, Qts of 0.4 or below indicates a transducer well suited to a vented enclosure.

What is an infinite baffle speaker?

In conceptual terms an infinite baffle is a flat baffle that extends out to infinity – the so-called “endless plate”. A genuine infinite baffle cannot be constructed but a very large baffle such as the wall of a room can be considered to be a practical equivalent.

What is bl on a subwoofer?

BL – How strong the motor force is of the speaker.

What is XMax subwoofer?

XMax = The distance a subwoofer voice coil can move in one direction without leaving the magnetic zone a.k.a. how far the woofer can move.

What is the VD of a speaker?

Peak Diaphragm Displacement Volume
Vd. This parameter is the Peak Diaphragm Displacement Volume — in other words the volume of air the cone will move. It is calculated by multipying Xmax (Voice Coil Overhang of the driver) by Sd (Surface area of the cone). Vd is noted in cc.

How do I lower my QTS?

lowering Qts – diyAudio. Dickason in his LOUDSPEAKER COOKBOOK says that Qts of a driver can be lowered by stretching porous fabric over the rear of the basket of the driver.

What is XMax speaker?

Why do speakers sound better in a box?

A sealed enclosure is what it sounds like; it’s an airtight case. As your driver moves back and forth, the air pressure in the speaker is constantly changing. This puts extra pressure from behind on the diaphragm as it moves in and out, and that takes extra power to overcome.

What do QMS and QTS mean on a subwoofer?

The driver’s overall resonance characteristics are usually dominated by Qes. Qms = Mechanical Q of the driver at Fs. Qms is a measure of the driver’s tendency to resonate at Fs, based on its mechanical characteristics, e.g. surround compliance, the compliance of the spider, weight of the cone, etc. Qts = Total Q of the driver at Fs.

What’s the difference between low QTS and high QTS?

Qts is the “overall Q” of the speaker, and is something that dictates motor force and what kind of enclosure a speaker should be in. Low Qts woofers (say .35 and down) should be in a ported alignment only.

What do you need to know about QTS and FS?

It will do whatever you tell it to do, including destroy itself. Simply because it does not know any better. Qts is the “overall Q” of the speaker, and is something that dictates motor force and what kind of enclosure a speaker should be in. Low Qts woofers (say .35 and down) should be in a ported alignment only.

Which is the most common QTC for a speaker?

Qtc is the total Q of the speaker in an enclosure including all system resistances. A Qtc of .707 is the most common and generally produces the flattest frequency response with approximately a 12dB/octave rolloff.