Search found 401 matches

by iansr
Sat Aug 26, 2023 8:28 am
Forum: Assorted Stuff
Topic: DAC power supplies
Replies: 8
Views: 653

Re: DAC power supplies

Yep, it’s common to all power supplies that are sold as a plug and play DIY solution. It’s not common if the power supply and regulator is integrated into the the product. I assume then Nick that is why the aftermarket PSs you make have a second regulation section towards the end if the umbilical t...
by iansr
Fri Aug 25, 2023 11:56 am
Forum: Assorted Stuff
Topic: DAC power supplies
Replies: 8
Views: 653

Re: DAC power supplies

Nick, probably a numpty question but is the inductance issue that you mentioned not then common to all PSs ?
by iansr
Thu Aug 24, 2023 10:09 pm
Forum: Assorted Stuff
Topic: DAC power supplies
Replies: 8
Views: 653

Re: DAC power supplies

Thanks Nick, I was hoping you would comment given your interest in PSs.
by iansr
Thu Aug 24, 2023 7:52 pm
Forum: Assorted Stuff
Topic: DAC power supplies
Replies: 8
Views: 653

DAC power supplies

I am very interested in Andrea Mori’s (ex DIYA) DAC Lite, FIFO buffer and state of the art clocks. Some of the wildly enthusiastic builders of this DAC have used powers supplies from a co called MPAudio who are into using multiple LT3045s. See here: https://www.mpaudio.net/post/how-to-maximize-psrr ...
by iansr
Sun Aug 06, 2023 10:07 pm
Forum: Speakers
Topic: Something Stirs in the Workshop
Replies: 217
Views: 83570

Re: Something Stirs in the Workshop

Well that’s probably better than what I had in mind :P Which was simply that the early stuff was the best in both cases . . .
by iansr
Sun Aug 06, 2023 8:53 pm
Forum: Speakers
Topic: Something Stirs in the Workshop
Replies: 217
Views: 83570

Re: Something Stirs in the Workshop

Unsurprisingly, no prize for that !
by iansr
Sun Aug 06, 2023 8:26 pm
Forum: Speakers
Topic: Something Stirs in the Workshop
Replies: 217
Views: 83570

Re: Something Stirs in the Workshop

what do Elvis and REM have in common . . . . ?
by iansr
Sun Aug 06, 2023 8:15 pm
Forum: Speakers
Topic: Something Stirs in the Workshop
Replies: 217
Views: 83570

Re: Something Stirs in the Workshop

Everything I’ve read about the TPL suggests you want to be crossing no lower than 1200 and ideally at 2k, so your horn must be having quite a positive impact.
by iansr
Sat Apr 22, 2023 10:04 am
Forum: Speakers
Topic: Return of the Triffids
Replies: 10
Views: 2404

Re: Return of the Triffids

I’m appreciative of your input Scot, very helpful.
by iansr
Sat Apr 22, 2023 7:08 am
Forum: Speakers
Topic: Return of the Triffids
Replies: 10
Views: 2404

Re: Return of the Triffids

The woofers will go up to c.500hz.

The sound waves of an OB do cancel at the sides, which as I understand it is why you get the figure of 8 pattern.
by iansr
Fri Apr 21, 2023 7:20 pm
Forum: Speakers
Topic: Return of the Triffids
Replies: 10
Views: 2404

Re: Return of the Triffids

When you look at other photos of the Reflector you can see that the horn is recessed into the void between the baskets, so I reckon it’s to reduce the overall width and height. I think the AE Dipoles look great from the front which is why I want them forward facing.
by iansr
Fri Apr 21, 2023 4:20 pm
Forum: Speakers
Topic: Return of the Triffids
Replies: 10
Views: 2404

Re: Return of the Triffids

Thanks Steve. Looking forward to seeing the comments and observations.

It might be worth mentioning that my idea is to low pass 2 of the AE 12s at c.500hz (where they will cross to the big horn) and the other 2 at c.100hz so that they help to compensate for the low end roll off.
by iansr
Thu Mar 30, 2023 8:15 pm
Forum: Speakers
Topic: Hybrid OB / Horn project
Replies: 4
Views: 1033

Re: Hybrid OB / Horn project

Steve
How would you bend those boards - kerf?
by iansr
Thu Mar 30, 2023 11:36 am
Forum: Speakers
Topic: Hybrid OB / Horn project
Replies: 4
Views: 1033

Re: Hybrid OB / Horn project

I’d welcome comments about the Sigma woofer system, or indeed any other suggestions re the 4 woofers.

(My original plan was a vertical stack - WW/HORN/WW - but that would be 2m tall and that is too tall for my liking.)
by iansr
Thu Mar 30, 2023 11:33 am
Forum: Speakers
Topic: Hybrid OB / Horn project
Replies: 4
Views: 1033

Re: Hybrid OB / Horn project

Image