You might try the RST28A-4 aluminum dome version. I bought a couple but haven’t had a chance to plop them in to test. Very similar specs.
I tried the al dome driver and it was tough to tell that I had changed anything. I was expecting more of a difference but it was very similar overall sound. Only listened for a few tracks so maybe this was not the best test.
That’s encouraging to hear that it sounds consistent. Listen to tracks with drum kits with cymbals, brush work, marimbas, chimes, and bells. But a well designed tweeter and speaker should sound neutral with maybe a bit more detail. Looking at their graphs they are very similar so don’t expect too much different.
Yes, certainly. The thinner wall material was to try to emulate the original LS3/5A units built for internal BBC use. It makes for a lighter weight cabinet but I personally don’t think it matters that much given the main influence of the drivers themselves facing forward and delivering 99% of the sound out the front.
I am making the cabinets with 18mm thick ply on the front now. This seems to work better to allow more room for the rebate and mounting screw to have good purchase.
I am making the cabinets with 18mm thick ply on the front now. This seems to work better to allow more room for the rebate and mounting screw to have good purchase.
Hi, i begin to make the enclosure in 18mm mdf. The twetter is not in stock in soundimports.eu until end of may so i have time ...
I have bought a long time ago 4 USHER audio 8836A speakers and do you think it will be possible to make a bass extender for the rockville?
thank you ! bye !
I have bought a long time ago 4 USHER audio 8836A speakers and do you think it will be possible to make a bass extender for the rockville?
thank you ! bye !
The cabinet work has been started, I have asked by cabinet maker to put a grill has well, for that he had kept 38mm gap from front, 18mm will be the front baffle and 18mm will be the grill stand, does having additional 18mm infront would change anything?
The speaker crossover as designed was without a grill. If adding a grill I would suggest a minimal frame that attaches via magnets to the already flush front baffle.
I’m afraid adding a deep recess around the drivers is very bad for the sound. Any discontinuity causes diffraction and dips and peaks in the response vs a flat baffle.
If not too late - I would try to make the speaker flush and add grill later like this.
But personally, I would just avoid using a grill.
I’m afraid adding a deep recess around the drivers is very bad for the sound. Any discontinuity causes diffraction and dips and peaks in the response vs a flat baffle.
If not too late - I would try to make the speaker flush and add grill later like this.
But personally, I would just avoid using a grill.
Attachments
Agree, even the minimal grill cause a lot of diffraction. That is the main reason BBC added the felt ring I believe. Turned out to have other benefits. Nice speaker you've got there BTW
Nothing really. The rebate helps to reduce diffraction which can lead to less clean sounding mid range and top end. It’s a minor effect though.
High gloss Baltic birch:
With grills:
They sound great with a Pass designed DIYA VFET Class A amp:
With grills:
They sound great with a Pass designed DIYA VFET Class A amp:
I have licensed these to be commercially produced and they will be available in choice of high gloss natural, satin piano black, or bamboo. All construction uses Baltic Birch with internal battens. Lined with Noico butyl and foam internally. Custom made crossovers with quality components on PCB. Nice binding posts. Magnetically secured grills. They will be available in about 2 months from a new company called Vera-Fi Audio.
I just finished installing the drivers and about to take these for a test listen now. I installed melamine foam on these for a comparison with eggcrate foam. This is just showing the start of the melamine foam install. They cover the total inside 360deg.
I just finished installing the drivers and about to take these for a test listen now. I installed melamine foam on these for a comparison with eggcrate foam. This is just showing the start of the melamine foam install. They cover the total inside 360deg.
awesome! I hope it's a successful venture! I've been really curious about these, but I'm 10 projects deep. They seem like a great value.
Thanks! These speakers are going on a Super Best Audio Friends (SBAF) tour soon. If someone is a member of SBAF and wants to try them out, sign up for the tour when it comes out.