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Posts posted by Deang

  1. 1 hour ago, Stephen Buck said:

    On used original commercial units redeployed to home use.

    Commercial plywood LaScalas had commercial woofers with higher SPLs and were often deployed in harsh environments, auditoriums with high temperature and humidity swings over many years. It’s fantastic people find them so good for reuse.  

    Before you go screw up a pair of AL5s which are MDF/HDF and therefore have different resonance characteristics, I’d consider your SPLs and real world use and actual audible measurements from listening position.  Should be easily done with test tone and mic, to pick up actual signal mismatch and with someone alternately pressing on sidewall to dampen to see if errant signal reduces or goes away.  Probably REW can do it. 



    Along with the MDF, quite a bit of correction built into the new networks. 

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  2. 4 hours ago, Stephen Buck said:

     … it’s the arrival time of the same frequency from two locations that can either amplify or cancel.  

    How can it amplify (sum). I thought it was out of phase wave cancellation? That’s why the response looks like a comb. I don’t see how this could ever be a good thing. 

  3. If your plan is to gut them, the cabinets would be practically worthless. I can’t imagine anyone paying for them with no drivers or crossovers. 

    if you are tight with money, the answer is definitely not destroying a perfectly good set of loudspeakers. 


    They were designed to be used as stage monitors and have a strong vocal presence. Converting the networks to the AA will rebalance the loudspeakers. It will pull the midrange back so you can hear the bass. 



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  4. I think we should leave any enforcement of the rules to the moderators. 


    We should always be interested in helping somebody figure out a problem. It’s not like he’s here shilling.


    The sound you are describing is what one might hear with no tweeters, yet you said you changed the diaphragms out. You should start by double-checking that they are actually working.

    • Like 6
  5. What is the general condition of them? In nice condition they are still demanding a premium. I see them regularly go for $2500 - $3000. 

    Tweeter diaphragms are inexpensive. 

    Dead squawker could certainly be a bad connection. Loosen and retighten all of the screws on the terminal strips. 

    AL-3 would be the best network for that driver complement. Least expensive route would be to find some on eBay and recap them. I build new with OEM parts. Cost is $645.00 a pair. 



    • Like 1
  6. On 12/24/2023 at 8:51 PM, delta88343 said:

    Unfortunately however, Klipsch Heritage speakers are more sensitive to this room effect than dome radiators with a wider dispersion patten.

    You have it backwards. 

    Horns have controlled directivity. 

    I think they’re brighter because that’s how they’re voiced. Live music doesn’t sound “buttery smooth”, in fact, most live music is fairly bright and a little harsh (a little).  

    • Like 1
  7. 1 hour ago, Xtomasx said:

    Sound is still there in the tweeter, just very faint. 

    That’s because there is a 100 ohm resistor in parallel with the polyswitch. When the polyswitch tripped, the signal was rerouted through the resistor. That you can hear sound through it means you didn’t blow a diaphragm. 

    It’s the correct part. You’ll be fine. I would use clips for heat sinks when you solder the polyswitch in.

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