What do T S parameters mean?

What do T S 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 VAS in TS parameter?

Vas is an equivalent volume of air that has a compliance equal to that of the driver’s moving system. Vas can be calculated as follows: Vas = ρc2Cas where Cas is the acoustic compliance of the driver’s suspension.

How do you measure FS?

The Fs of the speaker in free air has been measured, so simply add a suitable mass to the cone and re-measure the resonant frequency. This becomes Fs¹. First, measure cone diameter so that effective cone area can be determined. Measure the diameter, including half the surround.

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.

How do you measure QTC on a speaker?

It is defined as 1/Qts = 1/Qes + 1/Qms. Qtc: Qtc is the total Q of the speaker in an enclosure including all system resistances.

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 is EBP calculated?

EBP = Fs / Qes EBP > 100 then the woofer is suited for Bass reflex. EBP is between 50 and 100, then it is good for either Closed or Bass Reflex.

What do subwoofer parameters mean?

Thiele and Small Parameters (also referred to as T/S parameters) are used to define technical electromechanical parameters for a loudspeaker. These specifications are used primarily by advanced consumers that are looking for low frequency performance of a subwoofer.

What is mechanical Q QMS?

Qms is the mechanical Q, which measures the control from the speaker’s mechanical suspension system, the surround and spider. A Qts of 0.4 or below indicates a speaker well-suited to a vented enclosure. A Qts between 0.4 and 0.7 indicates suitability for a sealed enclosure.

What are the TS parameters of a loudspeaker?

What is TS Parameters? TS parameters are a logical, minimalist assortment of loudspeaker characteristics which can be used to predict the low frequency behavior of a driver in an enclosure ­ especially a vented enclosure.

What do Thiele Small parameters ( T / S ) mean?

The original article can be found at: http://audiojudgement.com/theile-small-parameters-explained/ What do Thiele Small (T/S) parameters mean ? The Thiele Small parameters, or TS values for short, are all very confusing and difficult to understand and remember. I’m going to try to make it as easy as possible to understand them.

Who are the T and s in TS?

The T in TS refers to A. Neville Thiele the Australian engineer who first defined these parameters and then used them to create 28 discrete alignments for vented box loudspeakers. The S in TS refers to Dr. Richard Small who refined and expanded on the work of A. N. Thiele.

How are the values of small signal parameters determined?

Small signal parameters. These values can be determined by measuring the input impedance of the driver, near the resonance frequency, at small input levels for which the mechanical behavior of the driver is effectively linear (i.e., proportional to its input). These values are more easily measured than the fundamental ones above.