My new project

**mikebond** · February 10th, 2010, 03:43 PM

Hi!
Let me introduce my new project. It not finished 100%, but I already can enjoy the nice sound of Altec woofers/drivers. The cabinets are my own design and they are 40,9"(h)x24,8"x23,2"(d) and made from 3/4" birch plywood. In each cabinet I use 416Z+414Z woofers and 811B horns with 902-16 drivers on the top. Xover is 2-nd order. Woofers/driver are crossed at 250Hz and 1200Hz. 414Z is in sealed box. My first driver was Altec 806A, but it was changed to 902-16 because of better HF FR.
Sorry for my bad English.

**mikebond** · February 10th, 2010, 03:49 PM

More photos:

**bfish** · February 10th, 2010, 07:53 PM

Looks nice Mike. Good to hear from you again. :2thumbsup:

GM · February 10th, 2010, 08:34 PM

Thought the name sounded familiar. I see it's been a year now since we discussed this semi- 9862 monitor concept. Glad to see something's become of it. Hope there's some measurements when it's done. (hint, hint

) With the 414 filling in, they must have mids to 'die for'.

GM

**mikebond** · February 11th, 2010, 12:15 AM

Hi Bfish and GM! Thanks for your good words! I do have measurements, but my attachments limit (160Kb) is over. What to do? GM, you are right, the mids are just fantastic! Anyway, bass is also very good. The internal volume is about 9 cu.ft and my LF is down to 45 Hz.

**Leland** · February 11th, 2010, 04:18 AM

Looks great.

Wouldn't mind pics of the side and back to see how the horns are attached.

**mikebond** · February 11th, 2010, 04:28 AM

There are my measurement results:
the first pic is for each woofer/driver measured separate (with Xover) from 0,2m distance
the second pic is complete FR measured from 1m (3ft)

http://photofile.ru/users/rl3bm/3701...76/full_image/
http://photofile.ru/users/rl3bm/3701...79/full_image/

**mikebond** · February 11th, 2010, 04:57 AM

Originally Posted by Leland

Looks great.

Wouldn't mind pics of the side and back to see how the horns are attached.

Leland,
The horns are simply lie on the top of the cabinets - the design is not finished yet and the cabinets will be veneering soon

GM · February 11th, 2010, 11:24 AM

Originally Posted by mikebond

There are my measurement results:

Greets!

You're welcome! Ignoring what appears to be the room's impact below ~300 Hz and the need for some (more?) CD horn EQ to flatten/extend its response, it looks quite good.

GM

**mikebond** · February 11th, 2010, 02:51 PM

Originally Posted by GM

Greets!

You're welcome! Ignoring what appears to be the room's impact below ~300 Hz and the need for some (more?) CD horn EQ to flatten/extend its response, it looks quite good.

GM

Hi GM! Thanks for your comments!
First I would like to finish LF cabinets (including veneering) and after that I'll have enough time to play with horns/drivers