Pic of new Stonehege V's with GPA's 604s

[atilsley]

Took advice from Todd and built the massive version 5 Stonehenge's for the GPA 604-III drivers....

Finish is a very expensive Santos Palesander over 19mm ply...plus a second internal layer of 19mm ply....38mm in total.

Cabs will be finished in Bees Wax polish.

Some internal bracing to secure the middle of the removable back panel, plus minimal sound deadening to be added. Solid billet terminals will be used.

A rewarding and fun project....

Looking forward to getting the drivers in this weekend for testing.....

Amp will be 300B SET....

Andrew.

Sydney.

[Altec Best]

Definitely looking forward to your observations. Very Nice !! :2thumbsup:

[drummerwill]

Looking good Sydney ........thats about the right size for deep bass.

Have fun
Willie

[magnarc]

Andrew

It looks good.

Did you build them yourself?

Nat

[analog addict]

Good on yer Mate!:2thumbsup:

How many cubic feet is that enclosure?

[atilsley]

Nat....No,I idn't build them. I've built many horns before...but for his one, Iused a local wood guy to help, as I wanted to have nice mitred corners all around. That's a tricky job to get perfect.

Outside measurements are 47.75 inches tall x 18 deep x 22 wide...

[SOOTSHE]

Beautiful work...they'll be stunning when you apply the final finish.
Interested to hear your comments on the sound. What have you been listening to before these?
John

[atilsley]

John

Thanks.

These are my first Altec's.

Over the last few years, I've developed a small custom building horn speaker business...Creation Audio...so I've tended to stay with Lowther, Tannoy, Fostex, etc.

I've started talking to GPA to see if I can promote their gear 'down under.'

The 604's are the first project....and I went for the biggest cabinet advised. (I just love building big things...!)

I'm also talking with Bill from Martinelli Horns to use his wooden 400Hz Trachorn paired with the GPA 902 comp driver, plus a 416 bass...in a new/old Model 19 config. That will be fun.

Andrew

Home

[atilsley]

Oh, meant to ask.

The gent I'm building these for has asked that the drivers be mounted from inside the front baffle...hence the removable back panel. (Similar to the Hiraga cabinets.)

Todd mentioned he wouldn't necessarily do this.

Any thoughts on possible sonic losses this way? (My cabs don't have the flared cut-out like the Hiraga though....)

Any thoughts on mounting techniques (of the drivers, that is!)?

[atilsley]

Internal volume is 246 liter (15,020 cubic inches, 8.7 cubic foot).

Is that big enough for bass....!?!

What's the cubic foot of the bass ca of the Model 19, for example?