WTB: Linkwitz Transform PCB's

[ShinOBIWAN]

As title. Will consider anything.

Can do paypal or cheque. Good price paid.

 

[pinkmouse]

Is it urgent? I've got to design one for myself sooner or later anyway...

 

[ShinOBIWAN]

Its for that XLS sub. The construction work is just about finished so I was hoping to get the LT in place and bring it along to the meet. Thats the timescale I was looking at.

At this rate I think I'm kidding myself on that one though.

How long were you thinking about?

 

[pinkmouse]

Mine wasn't that urgent, (it's for the AV15 ), but I'll see what I can do in the next couple of days. I should be able to get it together fairly quickly.

Do you need an onboard PSU?

 

[ShinOBIWAN]

Onboard PSU sounds real nice Al.

Let me know how much for the troubles and I'll paypal you.

 

[pinkmouse]

Just buy me a beer in July.

Mono input or mixer? 5Hz rolloff for subsonics?

 

[ShinOBIWAN]

Just buy me a beer in July.

Mono input or mixer? 5Hz rolloff for subsonics?

What do you drink? I'll ensure a crate is on supply

Mono input is fine and the sub can take a pounding and not break sweat so no subsonic filter.

Thanks Al.

 

[pinkmouse]

Ale! I'll get started on it tomorrow.

So - specs. Regs/PSU onboard, input buffer with phase reverse switch, LT circuit, output buffer, (optional), 12db LR subsonic filter (optional). I might as well make this as useful as possible to other people.

 

[ShinOBIWAN]

Ale! I'll get started on it tomorrow.

So - specs. Regs/PSU onboard, input buffer with phase reverse switch, LT circuit, output buffer, (optional), 12db LR subsonic filter (optional). I might as well make this as useful as possible to other people.

Ale it is then. Any particular brand/brew/concoction?

All the rest sounds good. Let us know how it goes Al.

With a bit of luck we should be able to run some sick 15hz cycles at three figure SPL's on the day

 

[Ernesto]

Hi Pinkmouse, I´m interested in the PCB (in your design)
Some weeks ago I started to build PCB´s, and this improve with the time.
I will be very grateful if you put the design in the thread, then I try to build it (and build the circuit too)
Best regards.

Ernesto.

 

[pinkmouse]

Got to do some decorating first then I'll get started later on today.

...Some weeks ago I started to build PCB´s, and this improve with the time.

It certainly does! I quite frequently lay out PCBs for project I'll never actually build just for practice.

I'll post all the Eagle files here when done. Actually maybe not here, I'll open a new discussion thread for all the details.

 

[richie00boy]

Ant I thought the 4x XLS10 sub was vented? Or is this for another sub?

I have LT, filter, mixer and PSU boards already designed and tested, I think I have a spare PSU board which I can send you. The PSU is on my website, the rest of the designs are complete just not put on the site yet. I can send you the details if you want.

Although if you want a single board solution it seems like Al's might be a better choice.

 

[pinkmouse]

The speed I work, you might be best off taking up Richie's offer Ant.

 

[ShinOBIWAN]

Originally posted by richie00boy Ant I thought the 4x XLS10 sub was vented? Or is this for another sub?

I'm going to use it sealed as it still has enough clean output like that.

I have LT, filter, mixer and PSU boards already designed and tested, I think I have a spare PSU board which I can send you. The PSU is on my website, the rest of the designs are complete just not put on the site yet. I can send you the details if you want.

Although if you want a single board solution it seems like Al's might be a better choice.

Do you have boards for the LT Rich?

I don't want to put on Al. Designing PCB's is a trivial thing. But if yours are already done...

 

[ShinOBIWAN]

The speed I work, you might be best off taking up Richie's offer Ant.

Thanks for the offer Al t'was very, very much appreciated.

 

[richie00boy]

All boards are designed and tested, but I'd have to knock out all of them apart from the PSU as I think I have one already made for that. Unless of course you want to try making a board?

Do you have any PCB drilling equipment? As drilling is probably the most tedious part lol.

 

[richie00boy]

Conceptual schematic of controller board.

An externally hosted image should be here but it was not working when we last tested it.

First draft PCB of above.

An externally hosted image should be here but it was not working when we last tested it.

Linkwitz Transform is on it's own board with 2nd-order high-pass filter. I know you said you didn't need a filter, but this was on-board already, and can be wired out. However, if you really want no filter let me know as I can reasonably easily redesign the board to accommodate that.

 

[DonoMan]

I could go for some LT PCBs myself if they're cheap. Preferrably 1/4 watt resistors over 1/8 watt (since my stock is mostly 1/4 watt) but not a big deal either way...

 

[augerpro]

Me too.

 

[richie00boy]

All my designs use 1/4 watt resistors unless higher power is called for.

I was planning on just doing a board for shinobiwan as I have to develop, etch and drill them myself, but if there is good interest maybe I can get a batch made up professionally.