mr.pee1 Posted March 7, 2017 Share Posted March 7, 2017 Has anyone put a Altech Lansing 811 b in place of the stock mid on the LaScala and make it a 2 way or with a outboard tweeter? It's just a thought , not that I don't enjoy them the way the are . Quote Link to comment Share on other sites More sharing options...
Full Range Posted March 7, 2017 Share Posted March 7, 2017 I use a Great Plains 399-8A in an Eliptrac horn - which is an Altec Lansing design FR 2 Quote Link to comment Share on other sites More sharing options...
Khornukopia Posted March 7, 2017 Share Posted March 7, 2017 The Altec 811B is an 800Hz horn, and therefore not very compatible with the La Scala. The Altec 511B pictured in the middle here, is a more suitable match for the La Scala crossover frequency, but may not sound better than the K400 horn in most home listening rooms. Quote Link to comment Share on other sites More sharing options...
mr.pee1 Posted March 7, 2017 Author Share Posted March 7, 2017 I saw one that had a white plastic? Horn ,but i dont remember what forum just that mory James posted it. Quote Link to comment Share on other sites More sharing options...
Coytee Posted March 7, 2017 Share Posted March 7, 2017 It might be a bit more expensive (I have no idea) but you might look into the Klipsch K510. It's a 2" throat horn and Roy has worked out all the PEQ's to actively biamp it as a 2-way speaker. 1 Quote Link to comment Share on other sites More sharing options...
Srinath Posted March 7, 2017 Share Posted March 7, 2017 511 horn you say ??? Now, would a 511 work on a jamboree and would the corresponding 80* driver function to make it a good 2 way ? I mean in the same league as the K401 ??? or is that a 402 - the one that was intended to keep the jubilee as a 2 way. Cool. Srinath. Quote Link to comment Share on other sites More sharing options...
Tarheel Posted March 7, 2017 Share Posted March 7, 2017 1 Quote Link to comment Share on other sites More sharing options...
jason str Posted March 7, 2017 Share Posted March 7, 2017 The 511 and 811 really need a tweeter for that sparkle on the top but many just run without. The 511 is the horn you need to run with the La Scala. Quote Link to comment Share on other sites More sharing options...
Blvdre Posted March 8, 2017 Share Posted March 8, 2017 I tried a 511 with my La Scalas, 3-way, with a Great Plains 902. I did not care for it. i'm currently using Dave's FasTrac which beats the 400 and the 511, at least to my ears. Quote Link to comment Share on other sites More sharing options...
Srinath Posted March 8, 2017 Share Posted March 8, 2017 The 902 isn't the best driver to go into a 511 or an 811. You really need the 808 or 802 or almost any 80*. I however get the fact that in any case they sign off ~14k. Need a super tweeter to fill to 25k (yea I need 25k, cos unless you nicely overshoot, it tends to start losing it before 20k). In fact B&W's Matrix series is speced to go to 28k. Cool. Srinath. Quote Link to comment Share on other sites More sharing options...
Seadog Posted March 8, 2017 Share Posted March 8, 2017 4 hours ago, Khornukopia said: The Altec 811B is an 800Hz horn, and therefore not very compatible with the La Scala. The Altec 511B pictured in the middle here, is a more suitable match for the La Scala crossover frequency, but may not sound better than the K400 horn in most home listening rooms. The 511b clearly sounds better than the K401 in my living room in my Khorns. 1 Quote Link to comment Share on other sites More sharing options...
The Dude Posted March 8, 2017 Share Posted March 8, 2017 Haven't tried the K402 yet or a real k510 (which may sound better than the knock off I tried). I have tried the EV HP9040 and HP640. If depth wasn't an issue, I would go with the 9040 over the 640. However, the HP640 is a fantastic horn to use by itself. Now if you needed to stick with a 1.4" driver, then I wouldn't mind giving the EV HR9040 a try. I have tried the 511b/k55v with a tweeter and didn't care for it. Once I switched to the EV HP640, I have been good for some time. Next horn change up will be to the K402, I just need to get some cash saved up. 1 Quote Link to comment Share on other sites More sharing options...
The Dude Posted March 8, 2017 Share Posted March 8, 2017 3 hours ago, Srinath said: Now, would a 511 work on a jamboree and would the corresponding 80* driver function to make it a good 2 way ? I mean in the same league as the K401 ??? or is that a 402 This is a bold statement as I have never heard a k402, normally I don't make recommendations when I have never actually heard something. But since I have heard a 511b and horns comparable in size to the K402. I would not say that they are no where near the same league. Quote Link to comment Share on other sites More sharing options...
richieb Posted March 8, 2017 Share Posted March 8, 2017 3 hours ago, Tarheel said: Whoa - are those yours 'Heel? Altec mid? Is that a JBL Babycheek atop it all? Who did the crossover? Very cool. 2 Quote Link to comment Share on other sites More sharing options...
Lemon string Posted March 8, 2017 Share Posted March 8, 2017 13 minutes ago, richieb said: Whoa - are those yours 'Heel? Altec mid? Is that a JBL Babycheek atop it all? Who did the crossover? Very cool. I think the tweeter is a beyma cp-25 but I might be mistaken. 1 Quote Link to comment Share on other sites More sharing options...
richieb Posted March 8, 2017 Share Posted March 8, 2017 You may well be right --- Quote Link to comment Share on other sites More sharing options...
moray james Posted March 8, 2017 Share Posted March 8, 2017 8 hours ago, mr.pee1 said: I saw one that had a white plastic? Horn ,but i dont remember what forum just that mory James posted it. Quote Link to comment Share on other sites More sharing options...
JohnA Posted March 8, 2017 Share Posted March 8, 2017 I tried a 511B and 902-8B. Crossed at 500 Hz and 12 dB/octave (I think), the 902s buzzed on piano at loud-ish levels. The sound was very similar to the Klipsch squawker/tweeter, i.e. very good. I remember trying to damp the lips and horn with rope caulk, so perhaps I heard something from that. I ended up using the Altec top end with FH-1s crossed at 1k and they sound very sweet. Looks like I don't have a finished pic. Quote Link to comment Share on other sites More sharing options...
Khornukopia Posted March 8, 2017 Share Posted March 8, 2017 30 minutes ago, John Albright said: the 902s buzzed on piano at loud-ish levels If the glue holding the phase plug loses it grip, the phase plug can touch the diaphragm and cause a buzz or crackle noise when played loud. Quote Link to comment Share on other sites More sharing options...
Tarheel Posted March 8, 2017 Share Posted March 8, 2017 18 hours ago, richieb said: Whoa - are those yours 'Heel? Altec mid? Is that a JBL Babycheek atop it all? Who did the crossover? Very cool. Mine. The tweets are Beyma baby cheeks. Altec horns and drivers. And to comment on an earlier statement the Altec horn is much smoother than the K400. Night and day difference. Al Klappenberger gave me the specs for the xovers and my bud bluesboy built them. 1 Quote Link to comment Share on other sites More sharing options...
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