How does a single driver do 20-20,000 hz?

FullRangeMan · « **Reply #20 on:** 21 Mar 2012, 01:32 am »

Uh...I would love to be a Nelson Pass neighbor.

chrisby · « **Reply #21 on:** 21 Mar 2012, 08:38 pm »

Quote from: Æ on 21 Mar 2012, 12:17 am

Is that a ribbon tweeter I see? Well, if it is, then technically it isn't a 1 way system

Heil AMT methinks

and Russell - deep pockets doesn't hurt either - but of course you know that already

doug s. · « **Reply #22 on:** 22 Mar 2012, 01:04 am »

Quote from: chrisby on 21 Mar 2012, 08:38 pm

Heil AMT methinks

and Russell - deep pockets doesn't hurt either - but of course you know that already

tad pt-r9 ribbon tweet. (along w/the two mondo tube sobwoofers.)
http://www.mh-audio.nl/Downloads/KleinHorn2.pdf

doug s.

JohnLL · « **Reply #23 on:** 23 Mar 2012, 02:43 am »

Sorry I have not figured out to quote yet. For P10" Relieving the FR of low bass really helps with dynamics & high level reproduction... and with mid-range finesse." In your experience can this be achieved by a too small box or does it need to be a crossover? Thank you.

Chromisdesigns · « **Reply #24 on:** 23 Mar 2012, 04:16 am »

Quote from: FULLRANGEMAN on 21 Mar 2012, 01:32 am

Uh...I would love to be a Nelson Pass neighbor.

If you read his article on these speakers, he notes that back when he was in school, he and his buddies built a similar pair of horns, but they were 9 foot long linear horns, not the folded version. He says "...no matter which way we pointed them, the police always showed up!"

That same article also points out that any room you could possibly put these folded horns in MUST also have space for a couple El Pipe-o's, hence the system pictured. If only....

FullRangeMan · « **Reply #25 on:** 23 Mar 2012, 05:09 am »

In the 90 years the owner of a shop introduced me to Eng.Coutinho, a very nice chap, who built a 15inches Bose tube sub, with two large cement sewer pipes.
To celebrate the success of this DIY he invited friends and started listening Tomita Planets, when the rocket depart from Jupiter to Saturn, the room entered in great resonance and the guest(all male) panicked and fled into the street.
Result: the wall of the building cracked and Eng.Coutinho had to move, as the apartment was rented.

sts9fan · « **Reply #26 on:** 23 Mar 2012, 12:09 pm »

ricardojoa · « **Reply #27 on:** 23 Mar 2012, 01:30 pm »

Well the decware had sited 45-20 +-3db. Your post seems a bit of or well any company can list 20-20 if there is not range.

Æ · « **Reply #28 on:** 23 Mar 2012, 06:03 pm »

My horn is longer than your horn!

chrisby · « **Reply #29 on:** 23 Mar 2012, 08:06 pm »

but don't overlook performance factor of girth

OzarkTom · « **Reply #30 on:** 13 Apr 2012, 12:50 pm »

I wonder if this guy is married?

Quote from: Retsel on 20 Mar 2012, 09:19 pm

The Kleinhorn is probably the most extreme backhorn one could imagine, and it cannot achieve 20 hz to 20K hz. See:

http://www.passdiy.com/pdf/KleinHorn2.pdf

Retsel
This is my favorite example of what tends to happen when an audiophile is let loose with zero moderating effect by significant other or neighbor!

planet10 · « **Reply #31 on:** 13 Apr 2012, 05:15 pm »

Quote from: OzarkTom on 13 Apr 2012, 12:50 pm

I wonder if this guy is married?

Happily so...

dave

sts9fan · « **Reply #32 on:** 13 Apr 2012, 06:19 pm »

Yeah, when your amps make you a wealthy man it's amazing what she will allow.

planet10 · « **Reply #33 on:** 13 Apr 2012, 07:01 pm »

+ it is his own dedicated room.

dave

ejfud · « **Reply #34 on:** 13 Apr 2012, 08:20 pm »

Quote from: planet10 on 13 Apr 2012, 07:01 pm

+ it is his own dedicated room.

dave

That sure helps.

WC · « **Reply #35 on:** 13 Apr 2012, 08:48 pm »

Did they build the room around the horns or does he have large door openings? I guess they could have been built in place and he could care less how difficult they would be to remove from the room.

planet10 · « **Reply #36 on:** 14 Apr 2012, 01:59 am »

The kleinhorns are built as modular pieces and then assembled in place.

dave

JLM · « **Reply #37 on:** 15 Apr 2012, 08:15 pm »

The walls on those Kleinhorns are so thin, they've got to color/muddy the sound like crazy.

BTW the Fostex F200A are 10 pound 8 inch whizzerless AlNiCo drivers that are rated 30 - 20,000 Hz, 8 ohms, 90 dB/w/m. Add a cabinet for more bass. Unfortunately they keep going up in price (currently $975/pair from Madisound).

doug s. · « **Reply #38 on:** 15 Apr 2012, 09:33 pm »

Quote from: JLM on 15 Apr 2012, 08:15 pm

The walls on those Kleinhorns are so thin, they've got to color/muddy the sound like crazy.

i'd be surprised if lowther dx4's or dx55's would effect those cabinets enough to muddy the sound even a little, yet alone "like crazy". close to the driver, the cabinet construction would actually be quite sturdy, due to its small size...

doug s.

ejfud · « **Reply #39 on:** 15 Apr 2012, 09:47 pm »

Quote from: doug s. on 15 Apr 2012, 09:33 pm

i'd be surprised if lowther dx4's or dx55's would effect those cabinets enough to muddy the sound even a little, yet alone "like crazy". close to the driver, the cabinet construction would actually be quite sturdy, due to its small size...

doug s.

I would tend to agree with Doug on this. Although sometimes resonating cabinets can be fun and sound nice. I've grown to really enjoy these.