I'm looking for some feedback from people who have pushed their T34B tweeters harder than usual in a hifi setting and whether a WG was used.
Looking at overall specs, the T34B should be good for at least 110 dB combos w/o a WG if crossed high enough. The question is how low with how steep xover vs how loud with or without a WG?
Whats odd is the T25B is rated higher according to specs than the T34B at similar xover. That doesn't make much sense, unless I'm missing something else spec wise.
Looking at overall specs, the T34B should be good for at least 110 dB combos w/o a WG if crossed high enough. The question is how low with how steep xover vs how loud with or without a WG?
Whats odd is the T25B is rated higher according to specs than the T34B at similar xover. That doesn't make much sense, unless I'm missing something else spec wise.
T34A with a 2khz LR24 highpass. No waveguide.
Three hour outdoor test with a prosound 10" & 15" sub. It handled itself very well with recorded music.
The 500w amp channel for the 10" was clipping occasionally on more dynamic material. It was highpassed at 250hz.
System was active and eq'd flat (minus diffraction effects).
Three hour outdoor test with a prosound 10" & 15" sub. It handled itself very well with recorded music.
The 500w amp channel for the 10" was clipping occasionally on more dynamic material. It was highpassed at 250hz.
System was active and eq'd flat (minus diffraction effects).
Also T34A with a ~2khz LR24 highpass and no waveguide, paired with 18Sound 8NMB420 and Faital 18FH500 driven by Hypex FA503.
Got louder than you can stand in my living room without ear protection, the tweeter still playing crystal clear and unstressed. Assume it is capable to reproduce transient peaks of >= 115dB without significant compression...
P.S.: The T25x goes also pretty loud due to its good efficency, a guy from a german forum develops a PA with them:
https://www-diy--hifi--forum-eu.tra...r_tl=de&_x_tr_hl=de&_x_tr_pto=wapp#post337659
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Dave's dodgy spreadsheet....
This is for the raw driver (no WG) radiating into full space. Your excursion knee is at 1,252Hz (i.e. below that the tweeter is excursion limited and above is thermally limited assuming a maximum sustained 80w input level)
This ignores distortion and other factors. This is purely a max mechanical or thermal output graph.
This is for the raw driver (no WG) radiating into full space. Your excursion knee is at 1,252Hz (i.e. below that the tweeter is excursion limited and above is thermally limited assuming a maximum sustained 80w input level)
This ignores distortion and other factors. This is purely a max mechanical or thermal output graph.
I pushed mine to 110 in a waveguide 1250hz no biggie used the constant directivity waveguide in ath4 thread. Sadly I didn't check the sensitivity of the 34b in the waveguide or really push it hard.
Well that all pretty much proves how durable this driver is, barring distortion measurements.
I suspect anything over 2k 3rd order will be fine in monitor type applications and maybe 1.5k with appropriate WG.
I downloaded Augerpro's STL and will give it a shot printing it with CF loaded ABS. The dimensions look very close to the Jantzen TW034 WG.
I suspect anything over 2k 3rd order will be fine in monitor type applications and maybe 1.5k with appropriate WG.
I downloaded Augerpro's STL and will give it a shot printing it with CF loaded ABS. The dimensions look very close to the Jantzen TW034 WG.