K-horn bin with altec woofer impedance curve.

73.18.128.138

Posted on April 1, 2016 at 15:41:37

Wojciech
Audiophile

Posts: 4129
Joined: June 23, 2009

Years after I rented out my house to friends they want to do something with my left behind K-Horn Bass bins occupying space in the corners. I took an impedance sweep with Dayton woofer tester. Doesn't look like typical K-horn plot . (the bins are not airtight against the wall as yet )
At disposal is a combo of 808a/511B symbiotic altec 501-8z crossover . I could use HF crossover section and make 12dB filter for bass bins. Or, try EV Georgian approach with 1829/PC100 reentry horn and add a tweeter with EV X336 crossover. Both solutions seem very compromised but my friends are not willing to spend any money so they will have to live with either.

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RE: K-horn bin with altec woofer impedance curve.

Wojciech

17:56:42 04/01/16

7

RE: K-horn bin with altec woofer impedance curve.

moray james

22:23:56 04/01/16

6

RE: K-horn bin with altec woofer impedance curve.

Wojciech

06:20:02 04/02/16

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RE: K-horn bin with altec woofer impedance curve.

Wojciech

17:56:42 04/01/16

7

RE: K-horn bin with altec woofer impedance curve.

moray james

22:23:56 04/01/16

6

RE: K-horn bin with altec woofer impedance curve.

Wojciech

06:20:02 04/02/16

size problem ?

djk

22:41:28 04/01/16

4

RE: size problem ?

moray james

07:57:08 04/02/16

3

RE: size problem ?

djk

12:39:29 04/02/16

2

RE: size problem ?

moray james

15:13:28 04/02/16

RE: size problem ?

shenta1963@gmail.com

02:14:47 07/13/16

RE: K-horn bin with altec woofer impedance curve.

moray james

17:05:26 04/01/16

RE: K-horn bin with altec woofer impedance curve., posted on April 1, 2016 at 17:05:26
moray james Manufacturer Posts: 1599 Location: Calgary on the Bow Joined: May 19, 2002	Best measure the space you have available as the Altec may well be wider than the K33 is and it may not fit inside. moray james

RE: K-horn bin with altec woofer impedance curve., posted on April 1, 2016 at 17:56:42
Wojciech Audiophile Posts: 4129 Joined: June 23, 2009	Moray , I have Altecs in a place of K-33 for years now.To me they work much better than K-33 but they don't make a LF boom like K-33 tend to do and consequently may be perceived slightly bass shy compared to K-33. K-Horn is after all a 40Hz midbass horn.. I posted the impedance plot of K-Horn with altecs just as an illustration. The one with K-33 looks quite a bit more violent.

RE: K-horn bin with altec woofer impedance curve., posted on April 1, 2016 at 22:23:56
moray james Manufacturer Posts: 1599 Location: Calgary on the Bow Joined: May 19, 2002	I was thinking that some of the Altec are 16" dia. and concerned about them fitting. Which model are you using? I have seen simulations for a 515 (I think)that looked good in a Khorn. Thanks for posting. moray james

size problem ?, posted on April 1, 2016 at 22:41:28
djk Manufacturer Posts: 6135 Joined: June 17, 2000	The Altec woofers are only a size problem in the LaScala (or Cornwall).

RE: K-horn bin with altec woofer impedance curve., posted on April 2, 2016 at 06:20:02
Wojciech Audiophile Posts: 4129 Joined: June 23, 2009	I put old 803A there , hard suspension Fs=40Hz and 12 Ohm impedance.Great sounding unit but my examples were old and too fragile to use in direct radiator application.I remember that I was intrigued by Vitavox version of K Horn which supposedly sounded better than original Klipschorn and used expensive K15/40 alnico beast in two-way with 300hz horn on the top crossed at 500hz to S2 CD.

RE: size problem ?, posted on April 2, 2016 at 07:57:08
moray james Manufacturer Posts: 1599 Location: Calgary on the Bow Joined: May 19, 2002	Dennis: thanks, do you know if an Altec can squeeze one into a Belle? The triangular dog house should provide a little more space for the speaker basket than there is in the LaScala. A Peavery FH1 would likely be a fit as well. moray james

RE: size problem ?, posted on April 2, 2016 at 12:39:29

djk
Manufacturer

Posts: 6135
Joined: June 17, 2000

Sorry, not sure about the Belle.

The motor board is wider than the LaScala, but I have never tried it.

A PPSL quad 8 plenum does fit though.

RE: size problem ?, posted on April 2, 2016 at 15:13:28
moray james Manufacturer Posts: 1599 Location: Calgary on the Bow Joined: May 19, 2002	That's good. Fits better than any fifteen I bet. So worth checking on a Belle though. Thank you for the information. moray james

RE: size problem ?, posted on July 13, 2016 at 02:14:47
shenta1963@gmail.com Audiophile Posts: 1 Location: WA Joined: July 13, 2016	Wondering if any Altecs would fit in a Cornwall 1 box and whether it would be better than Bobby Crites woofers?

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K-horn bin with altec woofer impedance curve.

73.18.128.138