Search found 15 matches

by Vangelo
Sun Feb 28, 2021 5:34 pm
Forum: Speakers
Topic: Another speaker thread
Replies: 254
Views: 155680

Re: Another speaker thread

He’s also only running them down to 200hz. Also, to be picky, the "Journey to No-Baffle Speaker System" has failed a bit given the two way Kef's are enclosed. He could have put a pair of LS3/5A's on the top. Yah....this is true Nick! I had no idea this is where I would end up (if its the ...
by Vangelo
Wed Feb 03, 2021 1:50 pm
Forum: Speakers
Topic: Another speaker thread
Replies: 254
Views: 155680

Re: Another speaker thread

simon wrote: Wed Feb 03, 2021 1:32 pm
Vangelo wrote: Wed Feb 03, 2021 10:03 am The Stradas are quite unique and display alot of the open baffle/naked characteristics.
Are you preferring them to other fullrangers with a baffle? Lots of questions, sorry.
Yes....maybe partly explained by graph I posted.
by Vangelo
Wed Feb 03, 2021 1:48 pm
Forum: Speakers
Topic: Another speaker thread
Replies: 254
Views: 155680

Re: Another speaker thread

This is my experience and happy to answer any q’s! Cheers, Vic Question: Do you apply EQ by ear, or with measurements? If the latter, do you have any curves you could share? TIA, Chris Chris, I usually eq by ear. I was curious with the Gallo Stradas to see how they voiced them. Here is a graph comp...
by Vangelo
Wed Feb 03, 2021 10:03 am
Forum: Speakers
Topic: Another speaker thread
Replies: 254
Views: 155680

Re: Another speaker thread

The Stradas are quite unique and display alot of the open baffle/naked characteristics. They use mechanical crossover and capacitor to protect tweeter, so not a lot of electronics in the way. They are over 90db efficient too. Being sealed units means they produce more bass than OB units, but the mai...
by Vangelo
Wed Feb 03, 2021 4:47 am
Forum: Speakers
Topic: Another speaker thread
Replies: 254
Views: 155680

Re: Another speaker thread

simon wrote: Tue Feb 02, 2021 10:42 pm How high up do you roll off the UM18s Vic?
The crossover depends on the full range I am using. Most of the naked drivers need to cross around 275hz.
Currently I am using sealed box Strada 2's which are crossing @ 120Hz.
by Vangelo
Tue Feb 02, 2021 3:53 pm
Forum: Speakers
Topic: Another speaker thread
Replies: 254
Views: 155680

Re: Another speaker thread

Nick, Vic sent me a link to a thread which may be of interest if you haven’t seen it already- https://www.diyaudio.com/forums/full-range/277446-eva-foam-performance-speaker-enclosures.html Great, another long thread to digest :-D Indeed, I started reading it but lost the will to live. Maybe we shou...
by Vangelo
Tue Feb 02, 2021 3:48 pm
Forum: Speakers
Topic: Another speaker thread
Replies: 254
Views: 155680

Re: Another speaker thread

it's now 95 years since Kellogg and Rice came up with that infernal invention. what struck me as odd is that since that earliest of times so much effort has been spent putting the loudspeakers in all sorts of boxes. There have been a myriad of different types of boxes and half boxes and baffles and...
by Vangelo
Tue Feb 02, 2021 3:37 pm
Forum: Speakers
Topic: Another speaker thread
Replies: 254
Views: 155680

Re: Another speaker thread

Thanks for contributing Vic. Everything you and Ali say is very compelling! If I do end up down the DSP road this is at the top of my list. I'm interested that you've tried the AE Dipole 18 (I think?) They look to be ideal for OB but they're not cheap. What did you make of them? Hi Simon Look great...
by Vangelo
Tue Feb 02, 2021 10:33 am
Forum: Speakers
Topic: Another speaker thread
Replies: 254
Views: 155680

Re: Another speaker thread

Guys...Ali brought this thread to my attention. I guess it would help to reveal some of the reasoning behind how I got to this weird design. Understand, first of all, I have no engineering/mathematical/electrical skills. All my experimentation has been trial and error. This has been an advantage bec...
by Vangelo
Fri May 01, 2020 8:24 am
Forum: Speakers
Topic: Ali Bastanis OB testing & results
Replies: 97
Views: 52205

Re: Ali Bastanis OB testing & results

Hey Ali! During this lockdown I decided to be productive and try out alternative to the PRV's. Blue Aran had stock of Faitals, and they were relatively cheap, fairly efficient and very smooth.....on paper anyway. Of course, singly they would not match the PRV for SPL (220W & 94db) which makes us...
by Vangelo
Fri Feb 07, 2020 6:32 pm
Forum: Speakers
Topic: Ali Bastanis OB testing & results
Replies: 97
Views: 52205

Re: Ali Bastanis OB testing & results

One thing I didn’t try was to see if there was any air being shifted out of the gap between the two drivers. Wherever it comes from, there’s plenty of it! No....its completely dead. One guy on LencoHeaven called it 'a phantom baffle'! Just to be clear.....the woofers are in phase accoustically, but...
by Vangelo
Fri Feb 07, 2020 11:32 am
Forum: Speakers
Topic: Ali Bastanis OB testing & results
Replies: 97
Views: 52205

Re: Ali Bastanis OB testing & results

What I am unsure of is the eq. I don't see how you can get a flat response without bass boost which I assume there is given the size of the amps. Ali's ob's are in effect baffle-less, but I do wonder if the lossy suspension is playing a big part. Yes, there is bass boost applied on the dynamics eq ...
by Vangelo
Thu Feb 06, 2020 5:10 pm
Forum: Speakers
Topic: Ali Bastanis OB testing & results
Replies: 97
Views: 52205

Re: Ali Bastanis OB testing & results

MiniDSP is one. There's also the Behringer DCX2496. The Powersoft amplifiers I've been using professionally have DSP built-in, and were a good jump ahead of the Behringer DCX2496 and iNukes I was using previously. The difference was hearing the notes (Behringer), and hearing the venue the notes wer...
by Vangelo
Thu Feb 06, 2020 3:46 pm
Forum: Speakers
Topic: Ali Bastanis OB testing & results
Replies: 97
Views: 52205

Re: Ali Bastanis OB testing & results

Just to clarify: In a small room I think a single UM18 will be fine. There is definitely something magical about the UM vs the RSS390 15" I was using before and feel a 1 x 18" UM18 would give a better result than 2 x 15" Probably get away with using a single NX6000......its just I hav...
by Vangelo
Thu Feb 06, 2020 2:34 pm
Forum: Speakers
Topic: Ali Bastanis OB testing & results
Replies: 97
Views: 52205

Re: Ali Bastanis OB testing & results

Great to meet you Ali.....appreciate you making the trip! I have to say my speaker journey turned up a few surprises.....discovering things sounded better without any baffle was a revelation, and the design evolved from there. The UM18's turned out to be a revolutionary step from the 15's. I never i...