## What do Thiele Small parameters mean?

Thiele/Small parameters (commonly abbreviated T/S parameters, or TSP) are a set of electromechanical parameters that define the specified low frequency performance of a loudspeaker driver. This process of generating parameters from a target response is known as synthesis.

## What is speaker QTC?

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.

## What are speaker TS parameters?

Thiele-Small (T/S) Parameters are a series of measurements that define the mechanical, electrical and electromechanical properties of a loudspeaker. The TSPs apply particularly to individual drivers and enclosures (vented or ported) and give us specifics about how the speaker design and performance.

## How do you calculate QMS?

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 FS Hertz?

Fs. This parameter is the free-air resonant frequency of a speaker. As a general rule of thumb, a lower Fs indicates a woofer that would be better for low-frequency reproduction than a woofer with a higher Fs.

## What is the Q of a subwoofer?

” In Subwoofer engineering terms, system Q is the product of a complex mathematical equation derived from driver, electrical and enclosure parameters. In practical terms, it relates to the character of the bass response. A low Q subwoofer sounds highly damped and very tight.

## How are speaker TS parameters measured?

For the speaker area, you can click the little calculator thingy and enter the diameter, and it will calculate the area automatically. Leave the air properties values unchanged and enter the value of the added mass. Simply click calculate parameters and it should display all of the T/S parameters.

## What is subwoofer PE?

Pe: This is the thermal capacity of the subwoofer. Using the driver at higher ratings can cause damage and failure to occur. It is measured in watts. Pt: This is the thermal power handling of the subwoofer and is typically the recommended RMS rating of the subwoofer measured in watts.

## What is QMS speaker?

Qms is a measurement of the control coming from the speaker’s mechanical suspension system (the surround and spider). View these components like springs. Qes is a measurement of the control coming from the speaker’s electrical suspension system (the voice coil and magnet).

## What is QMS subwoofer?

Qms is the mechanical Q, which measures the control from the speaker’s mechanical suspension system, the surround and spider. Think of these components as springs. Qes is the electrical Q, which measures the control from the speaker’s electrical suspension, the voice coil and magnet.

## What does FB Hz mean?

Port Tuning Frequency – Known as ( Fb ) – The Frequency that the port is tuned to for a Ported Enclosure.

## What are the parameters of a Thiele loudspeaker?

This group of parameters outlined by A.N. Thiele, and later by R.H. Small, describe the electrical and mechanical characteristics of mid and low frequency loudspeakers operating in their pistonic region. These parameters are crucial for designing quality enclosures for sound quality or loudness.

## Who are Thiele and small and what do they do?

This process of generating parameters from a target response is known as synthesis. Thiele/Small parameters are named after A. Neville Thiele of the Australian Broadcasting Commission, and Richard H. Small of the University of Sydney, who pioneered this line of analysis for loudspeakers.

## What are the Thiele Small parameters of a car?

Thiele-Small Parameters B Magnetic flux density in gap, in Tesla-m Mmd Diaphram mass, in grams Mms The driver’s effective mechanical mass ( n0 The reference efficiency of the system ( p (rho) Density of air at STP 1.18 kg/m^3

## What are the small parameters of Thiele’s law?

Thiele-Small Parameters B Magnetic flux density in gap, in Tesla-m BL The magnetic strength of the motor struc C Propagation velocity of sound at STP, ap Cas Acoustical equivalent of Cms Cmes The electrical capacitive equivalent of