Search found 2287 matches

by chris661
Fri Feb 21, 2020 7:03 pm
Forum: Speakers
Topic: Tannoy R-GRF
Replies: 8
Views: 96

Re: Tannoy R-GRF

Well, I suspect the 15" Tannoys will do bass just fine. ... Just not in the cabinets proposed above which, as Scott notes, aren't optimised for deep bass. I'd be looking at a low-tuned ML-TL or ported box, aiming for an EBS alignment, which should sit well with room gain. I'd also consider a big-ish...
by chris661
Fri Feb 21, 2020 9:45 am
Forum: Speakers
Topic: Tannoy R-GRF
Replies: 8
Views: 96

Re: Tannoy R-GRF

I believe our-Colin uses those guys to get the wood cut for his builds.
I do wonder if there are any better cabinet designs around, though. Is this for the 15" Monitor Golds?

Chris
by chris661
Fri Feb 07, 2020 6:26 pm
Forum: Speakers
Topic: Ali Bastanis OB testing & results
Replies: 84
Views: 1773

Re: Ali Bastanis OB testing & results

Given the amps, it's not FIR. You'll need my Powersoft T-series amps to do FIR processing.

Chris
by chris661
Fri Feb 07, 2020 12:33 pm
Forum: Speakers
Topic: Ali Bastanis OB testing & results
Replies: 84
Views: 1773

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 chris661
Fri Feb 07, 2020 11:02 am
Forum: Speakers
Topic: Ali Bastanis OB testing & results
Replies: 84
Views: 1773

Re: Ali Bastanis OB testing & results

I could buy 22 x NX6000D's for the price of a single Powersoft X8. Not a direction I am prepared to head in. I like to keep my hifi real! Fair enough. I use the T-series, which can be had a good deal cheaper. I can't say what I paid for the amps, but it was considerably less than the RRP. My PA sys...
by chris661
Thu Feb 06, 2020 3:42 pm
Forum: Speakers
Topic: Ali Bastanis OB testing & results
Replies: 84
Views: 1773

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 were...
by chris661
Tue Dec 31, 2019 9:53 am
Forum: Assorted Stuff
Topic: Owston 2020
Replies: 10
Views: 672

Re: Owston 2020

Should have some interesting stuff this time around:

- Small(ish) PA speakers with Faital Pro 10HX230 drivers.
- 8" 2-way HiFi speakers

I'll bring the measurement gear again.

Chris
by chris661
Tue Dec 31, 2019 9:45 am
Forum: Speakers
Topic: SLOB project
Replies: 200
Views: 7924

Re: SLOB project

Surface area x excursion=sound output. You are talking about huge baffles. That creates a large need to either dampen (ugly with transparent materials) or create many isolated “panes” that do not get excited by the single driver. Stiffening the structure just moves the resonance higher up in freque...
by chris661
Sun Dec 22, 2019 6:21 pm
Forum: Speakers
Topic: SLOB project
Replies: 200
Views: 7924

Re: SLOB project

Ali,
Is there any chance of a more zoomed-in graph? 20dB per division means quite a lot of the detail can be obscured.
Are you sure the crossover frequency was 20Hz? Sounds very low.

Cheers,
Chris
by chris661
Sun Dec 22, 2019 11:20 am
Forum: Assorted Stuff
Topic: Mains filter - made things worse?
Replies: 13
Views: 864

Re: Mains filter - made things worse?

Something to consider - most of the equipment that's used in HiFi has a really low power factor. ie, the mains current draw is actually over a very short part of the cycle. Via Fourier, that means it's got a lot of high-frequency components. Since a power conditioner will present a high impedance at...
by chris661
Fri Dec 13, 2019 5:40 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 11183
Views: 908763

Re: Nothing In Particular

My problem, throughout the past few years, has been the turnout. 100 people are in a room and are asked to pick between blue and red as a favourite colour. 34 pick blue, 32 pick red, and 34 stay silent. What's the favourite colour of the group? There's such a large number of people that didn't vote,...
by chris661
Fri Dec 06, 2019 4:22 pm
Forum: Speakers
Topic: Monacor SP-310CX Coaxial Driver MLTL's
Replies: 104
Views: 20240

Re: Monacor SP-310CX Coaxial Driver MLTL's

The height of the port is important (this design relies on how sound bounces from top-to-bottom), but it can be on the front or back or either side.

Chris
by chris661
Mon Dec 02, 2019 8:10 am
Forum: Speakers
Topic: Beyma CP21F match for Beyma TPL150H
Replies: 54
Views: 2599

Re: Beyma CP21F match for Beyma TPL150H

Colin, I'm curious - why would isobaric drivers help?

I'd be really interested to try making a bass module for some ESLs - I think it'd need some work in terms of processing, but I see no particular reason it can't be done.

Chris
by chris661
Sat Nov 30, 2019 9:56 pm
Forum: Assorted Stuff
Topic: Tablet help.
Replies: 35
Views: 4869

Re: Tablet help.

It's alright, I struggle with mine sometimes.
Auto-correct can help, or it can result in some amusing suggestions. Doesn't help with entering usernames/passwords, though. YMMV.

You can get external keyboards for tablets - might be worth a quick look.

Chris
by chris661
Sat Nov 30, 2019 9:53 pm
Forum: Speakers
Topic: Beyma CP21F match for Beyma TPL150H
Replies: 54
Views: 2599

Re: Beyma CP21F match for Beyma TPL150H

Which bits are you struggling with? There are lots of terms there that would further your knowledge with a bit of looking around online.

No offense intended, but your response comes across as rather ungrateful.

Chris