What is VAS Thiele Small parameters?
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.
What is PE on a subwoofer?
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.
How do you calculate speaker parameters?
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 subwoofer?
Qts is the total Q of the speaker and is derived from an equation where Qes is multiplied by Qms. The result is divided by the sum of the same. This value can be used as a general guideline in selecting the optimal enclosure type. A Qts of 0.4 or below indicates a speaker well-suited to a vented enclosure.
What is equivalent volume Vas?
Vas is the equivalent compliance (inverse of stiffness) volume seen by a given diameter speaker cone, meaning the volume of box air that gives the same stiffness as the driver’s suspension.
What does FS mean in subwoofer?
There is a lot more to a driver than just the Fs. But as a general rule, pretty much every single subwoofer plays below Fs. And the Fs (driver resonant frequency) becomes Fc (system (driver + enclosure) resonant frequency) when placing the driver in a sealed enclosure.
What does Qes mean for subwoofers?
The Qes is a measure of the electromechanical damping caused by voice coil resistance and the interaction of the voice coil in the magnetic gap. A higher Qes means less electromechanical damping or a smaller magnet. The Qts is the total damping which is the combination of mechanical and electromechanical damping.
What are the parameters of a speaker?
Speaker parameters, often called Thiele/Small parameters, are a set of electromechanical measurements that can be used to define the low-frequency performance of a transducer. Using these parameters and a series of calculations, your installer can predict the performance of that speaker in an enclosure.
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 is FS on subwoofer?
Fs. This parameter is the free-air resonant frequency of a speaker. Simply stated, it is the point at which the weight of the moving parts of the speaker becomes balanced with the force of the speaker suspension when in motion.
Is higher QTS better?
So if you’re a minimalist when it comes to processing, higher Qts is indeed better. But if you’re not averse to loading up your midbass with EQ, then you can possibly do better by using a lower Qts (or higher F3, or both) driver with a superior motor design.
What is FS in subwoofer?
What is f3 speaker parameter?
f3 is the most meaningful parameter. The lower the f3 parameter the deeper the bass will sound. An f3 below 50 Hz is suitable for a sealed enclosure. An value below of 40 hz gives the best results.
What is Qes and QTS?
Qes is the electrical Q, which measures the control from the speaker’s electrical suspension, the voice coil and magnet. Opposing forces from the mechanical and electrical suspensions act to absorb shock. Qts is the total Q of the speaker and is derived from an equation where Qes is multiplied by Qms.