Lets see your O.B. speakers....!

jk@home · « **Reply #620 on:** 17 Jan 2025, 10:06 pm »

These plastic sliders work great on carpet. Even if just for a temporary solution.
https://www.lowes.com/pd/Scotch-Scotch-8482-Sliders-SP652-NA-Reusable-Hard-3-5-in-4-pk/1002964414?store=1593&cm_mmc=shp-_-c-_-prd-_-hdw-_-ggl-_-CRP_SHP_LIA_HDW_Online_E-F-_-1002964414-_-local-_-0-_-0&gad_source=1&gclid=EAIaIQobChMIuJ6DmeH9igMVAW9HAR2ykRNfEAQYAyABEgKIYPD_BwE&gclsrc=aw.ds

Poultrygeist · « **Reply #621 on:** 18 Jan 2025, 01:35 pm »

Interesting sliders. One issue I have is maintaining a decent back tilt to the baffles so the F-15's fire toward my ears. Some of the barrel shaped baffles ( incorrectly called Betsy's ) seem too low to the ground to get much of a tilt.

opnly bafld · « **Reply #622 on:** 18 Jan 2025, 08:13 pm »

Turn that frown upside down.

opnly bafld · « **Reply #623 on:** 18 Jan 2025, 08:16 pm »

Then you need a tweeter because 15" wideband off axis....

FullRangeMan · « **Reply #624 on:** 19 Jan 2025, 03:58 am »

Quote from: opnly bafld on 18 Jan 2025, 08:13 pm

Turn that frown upside down.

Nice experiment. How sound the soundstage this way ?

Poultrygeist · « **Reply #625 on:** 19 Jan 2025, 11:40 am »

Can't have much of a back wave.

opnly bafld · « **Reply #626 on:** 19 Jan 2025, 12:34 pm »

Quote from: FullRangeMan on 19 Jan 2025, 03:58 am

Nice experiment. How sound the soundstage this way ?

I couldn't say, didn't bother to listen to them at Decfest last October.

There is a long thread about them (I haven't read it), maybe a way to put the speakers against the wall instead of out in the room??? As PG mentioned above, not much of a backwave.

gils · « **Reply #627 on:** **Today** at 02:28 am »

hello,

This sub H-Frame

Rainy weather, back to indoor tinkering!

I had an Infraflex 90x90 cabinet taking up space, and I have two 18-inch JBL 2279H drivers (short voice coil). A bit of experimental tinkering, and all in all, the sound is quite pleasant.

The subwoofer is clean and fairly precise despite a rather complex modal response. It goes quite low, it handles the power well, so why not use it?

T&S drivers used.
SD 1290
RE 5.6
BL 22.45
VAS 363 L
QES 0.38
QMS 5.05
QTS 0.35
MMD 150 g
MMS 177 g
Xmax 8 mm (évalué sur la base du 2278 H)
Pmax 800 W
Fs 30.61 Hz

The circuit uses an analog active crossover and a 150W Class B stereo amplifier (one channel per speaker).

It's basic, but it's an estimate.

Quelques mesures faite à 1 m dont une à 100 db/2.7 V

decay sur 320 ms

mesure HPs séparés courbe verte et rouge puis les deux combinés courbe bleu

And video

https://youtu.be/PltrMse7luI

cordialy.