Cabinet Plans for Tannoy HPD 385

[JohnJo]

50mm glass mineral wool lining fitted. Just waiting for some gasket tape for the fronts.

[walpurgis]

50mm glass mineral wool lining fitted

Hate that stuff, brings me out in rashes.

[JohnJo]

Hate that stuff, brings me out in rashes.

Agreed but this was very good, nowhere near as bad as the stuff you used to get.

It comes as very loosely packed 4’ x 2’ sheets which were easily worked compared to the rolls.

I did wear overalls, rubber gloves and a dust mask though!

https://www.homebase.co.uk/knauf-ear...b-50mm_p296296

[mbic]

Try these sites
http://www.44bx.com/tannoy/

http://www.44bx.com/tannoy/
The 385’s are 15” units and the Amesbury and Mansfield designs were in the same range as my Chatsworths whice have a 315 12” units I had mine fro new since 1975.

[mbic]

Try these sites
http://www.44bx.com/tannoy/

http://www.44bx.com/tannoy/
The 385’s are 15” units and the Amesbury and Mansfield designs were in the same range as my Chatsworths whice have a 315 12” units I had mine fro new since 1975.

[JohnJo]

Thanks Michael, already had a look at these sites.

[JohnJo]

Gasket tape fitted to both cabinets. Tomorrow night’s the night!

[IMG][/IMG]

[JohnJo]

[IMG][/IMG]

[JohnJo]

Well, we have sound!

Very early days but seems a more balanced sound, bass having an equal weight rather than a slight looking for it quality. Certainly more “relaxed” but then the Lockwoods were designed to be studio monitors.

I suspect the port will need tuning, it seems a bit “open”, just a little loose. I’ve stuffed a couple of cloths down one side of each port which has tightened things up a bit. Maybe lengthen it as per the plans that Frank posted and perhaps slightly reduce the overall aperture.

The big surprise is how the mids and top end seem a little more refined probably just due to the more even tonal balance. I’ve upped the energy setting from -1 to level.

[cooky]

Looking good, I'd front mount the driver John.