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Old 2nd January 2012, 10:13 AM   #1
navin is offline navin  India
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Default Newtronics Temperence

Anyone heard of the Newtronics Temperence?

Strassacker: Speaker - kits - do it yourself
Newtronics Temperance Loudspeakers listening test [English]

(in German)
SEAS-Box

(in Norwegian)
AVforum.no - DIY: Digital effektforsterker / Reléstyrt forforsterker / TL Høyttalere

The Temperence has a Tranmission line that has an area that is only about the area of one woofer. Assuming each woofer has an Sd of about 130 sq. cm (and 3 woofers would have a combined Sd of sy 400 sq. cm) the Newtronics Temperence's TL has a much smaller area than 400 sq. cm.

I thought the area of the TL needs to be much larger than Sd. How does the TL in the Temperence work?

On a more general note what Theil-Small parameters make a woofer suitable for TL? Qts? Qms? Fs?

One calculator (see link) did not require any T/S parameters other than Sd and Fs.
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