As these are on generous loan and worth more than I earn in a year I’m not 100% about the phase plug plan right now.
I was thinking of something that would just manetically snap-on to the exposed pole piece so could be easily removed.
That ‘rear wall’could be more substantial. ![]()
A bit surprised about the peakiness but I guess the Acousta cabinets didn’t really try to boost the front output of the AER’s any further as they don’t have a front loaded horn. But the Pnoes do & they don’t sound peaky so maybe they more artfully balance the rear LF output against the front output?
Very professional. Who did it ? ![]()
They certainly do.
Could this be a Chamber (Helmet size) thing? Or am I left suckling the bitter teat of ‘Gittish old-cab’?
Anyone tried these:
a) Do they contain 2p worth of components ? B) Worth trying? C) Go away I’m eating cheese on a pie, matron where is my mediction?. .. A, B, or C?
It’s probably a notch to take out some of the 2k shout from a Lowther. Probably completely inappropriate for an AER.
Wait until you have the working helmet, get it going and then measure. There’s no other way to approach this.
There is a front loaded horn on this box, but it’ll probably attenuate the highest frequencies as it isn’t straight, and god knows what it’ll do lower down. Just run with it, see how you like it.
If the sound and measurements seem promising then tweak. If not, it was a fun idea but you clearly need a better cabinet. A Big Fun Horn!
I’m very much into the idea of a sleeper Hi-fi and I’m sure that there will be a combo of tweaks that makes this all sound nice.
Total novice question, sort of spurred by Andy’s post above and asking for a friend you understand. Is it possible for a large’ish mono horn speaker to make a decent fist of stereo recordings, in a small - mid size room ? I get that you obviously won’t realise stereo, but can it sound decent / enjoyable ?
I have two TP1’s but for Helmet R&D (Please make this my strap line) it makes sense to print / test / print again for just one. If we can get one running reasonably it will be worth the great time and effort Adam has single handedly already contributed to push on and get the other one firing up for Stereo.
Ultimately I just don’t really go for “full range” drivers any more; they need so many sundry tweaks and adjustments that you might as well go for specialised drivers and crossovers!
A whizzer cone is essentially a second driver with a mechanical crossover. There are front and rear horns that do some stuff at some frequencies to offset some of the grosser frequency errors, and then you’re still tempted by notch filters and things.
The only one that really makes sense to me is the big fun horn - it lets the driver play forwards with no added shit, and uses a massive rear loaded horn that’s actually big enough for bass. Then it’s just a matter of “is your driver good enough?” - I decided that my Lowther PM6a wasn’t, but maybe this AER might be.
That’s what I would build here, but it’s a process to get there, and it’s not my decision anyway!
I understood that but, from a practical point of view, is it possible to make a large’ish mono horn speaker sound respectable / enjoyable with stereo in a small room ? I know it won’t actually do stereo, but could it be made to sound enjoyable, with scale ? Would make an interesting and unusual sleeper system if it could.
That’s literally how @coco got his monohorn title a while back. Admittedly it was two drivers playing into a single horn, but you can get great results with a single speaker. And better results with two.
Thanks Adam, that’s all I was looking for. Could you suggest any Mono, Stereo speaker design guide for Idiots reading material ?
I can’t find the post where the house was disassembled, was that nuked?
But this…
If the only worthwhile solution is remotely on the scale of Pete’s temporary foray into ultra-horn madness then it’s not really a practical solution.
That disassembling post remains the most beautiful moment of hi-fi related insanity I’ve ever seen.
Am I right in thinking that voicing for mono and stereo are slightly different. I’m sure I’ve read early quad esl57 are voiced slightly differently to later ones due to being for stereo. Might be completely wrong though.
Staircases and bedroom floors are sooo 2000 Dahling.
If you want scale with horns you need big. It’s physics.
That said you could get astonishing sound with a large tapped horn lying flat across one wall and MEH speakers placed in the corners on top of it. Would not be huge, in room.
