Flash, If you are interested in learning more about what the 2 way sound is like, and active crossovers, send me an email. I have something similar to Jubs....next size up. See my avatar.

Outstanding.

Another Georgia affiliate.

Glad to help anyway I can.  I have a complete hodgepodge of klipsch stuff.  Don't have the "standard" jubilee setup right now but very familiar with it.  Mark1101 has some Jubilee clones I built.

 Welcome

jc

Hi Flash,

I'm happy to answer any questions you may have - feel free to email me at: lwalko@hotmail.com 

Thanks, Bill W.

Just curious, but what would be needed to bi-amp the Jubs with an active crossover? I would be interested in using my VRD's on the 402 horns and a SS amp (Crown, DBX) on the bass bins. Any help would be appreciated.

Thanks,

Mike

Mike Lindsey:

Just curious, but what would be needed to bi-amp the Jubs with an active crossover? I would be interested in using my VRD's on the 402 horns and a SS amp (Crown, DBX) on the bass bins. Any help would be appreciated.

Thanks,

Mike

Other than that, the Electrovoice DX-38 active crossover is the most often used among the Jub crowd.  Unfortunately, it's a bit more pricey for what you get, but you can use your existing amplifiers if you go this way.  The Behringer Ultradrive Pro DCX2496 is also used, but fewer advocates exist for this product. 

Chris

Mike Lindsey:

I would be interested in using my VRD's on the 402 horns and a SS amp (Crown, DBX) on the bass bins

Sounds like you're looking at something close to what I'm doing.  If you already have the amps, you can simply get the Dx-38 and plug them in (after dealing with the RCA/XLR issues)  if you don't have your SS amps in hand yet, then Chris hit it on the head...  the Xti seems to be the bang for the buck!  Although, I suspect you would be forced to use TWO of them since you would still lack any PEQ for the 402.

So, it's easy... If you want to use the VRD on the 402, then that means getting either a Dx-38 or passives.  if you don't mind Xti's on both horns, then you can get the Xti's and be done.  Two Xti's would cost about (or under?) $800 and the Dx NEW is about $1,300 but I've seen them on ebay for 600/700

Mike Lindsey:

Just curious, but what would be needed to bi-amp the Jubs with an active crossover? I would be interested in using my VRD's on the 402 horns and a SS amp (Crown, DBX) on the bass bins. Any help would be appreciated.

Just a single EV Dx38.

One thing to keep in mind is that if you want to use dissimilar amps, then you will need to find a way to compensate for the differences in gain. This is actually something you might drive yourself nuts trying to do by ear. But at the same time, that's one of the nice things about actives....it's merely a touch of a button to change the voicing of the speaker. 

Doc brings up a good point. I tried using VRDs on the HF. The issue is no volume control. Then I got into Art Cleanboxes and such to match levels and provide volume control....No good. Sold the VRDs. Really wish I didn't have to. Trust me you don't want these intermediate level matching boxes. They add noise and reduce fidelity. Some are better than others but the two I tried made me sell my VRDs. The Crowns are the best bang for the buck. BUT....the Crowns are noisy. They hiss like a mad cat. The VRDs were very quiet. In the end I deal with the hiss because when the music is playing it is inaudible and my system really sounds great as is. It was a bargain way to get into active crossovers w/DSP and the 2-way operation I wanted. I can't say enough about the 2-way w/active and the improvements they bring.

Cask05:

Sounds like the Dx-38 doesn't have the ability to do attenuation like the XTi does...bummer

Whoa dudes...  let me see if I understand this...

You are saying that the Dx-38 does NOT have any way to adjust line levels to allow you to match amps?

If that is the suggestion then I will assure you that is incorrect.  Each output channel has a level adjustment so you can fine tune each channel as you wish.

When I was using the BX1 amp (1 volt input sensativity) mated with the McIntosh amp (5 volt input sensativity) I used Roy's calculations (20*LOG(V2/V1)) and came up with as I recall, about 14 db difference that I had to adjust for.  I simply went to that channel and cranked it down to -14db and was done.

I'll repeat that if he wants to KEEP his VRD's, then the easiest thing to do (IMHO) is to get the Dx and deal with the RCA/XLR issue.  If he doesn't mind replacing his VRD's with something else, then yes, the XTI is clearly the best bang for the buck.

Now, if I misunderstood your use of attenuation then ignore the above.

DrWho:

One thing to keep in mind is that if you want to use dissimilar amps, then you will need to find a way to compensate for the differences in gain........................that's one of the nice things about actives....it's merely a touch of a button to change the voicing of the speaker. 

He didn't say it blatenly but he's saying the same thing...  you can use the Dx-38 to balance your amps with each other.  "you will need to find a way" means, use the Dx

So, if I am going to use McIntosch tubes for the HF and McIntosh SS amp for the LF, will they match up, or have to wait and see?

Is that value published somewhere for the amps?  Easy to find out what that value is?

Paul

Paul,

Your MC206 has gain controls on the back I think.  2.5V-1.0V.  So you could use that or use the EV.  Are you using adapters RCA-XLR?

http://mcc.berners.ch/power-amplifiers/MC206.pdf

jc

Yes, I am using RCA-XLR adaptors.

Paul

Coytee:

I'll repeat that if he wants to KEEP his VRD's, then the easiest thing to do (IMHO) is to get the Dx and deal with the RCA/XLR issue.  If he doesn't mind replacing his VRD's with something else, then yes, the XTI is clearly the best bang for the buck.

I guess I would need to hear a pair with SS driving the bass bins and tubes driving the top horns, and then hear another pair with the Crowns driving everything, but I would imagine the first snenario would sound better. If someone has heard both and can't tell the difference, then yes, it would make sense to sell the VRD's and just buy a couple of Crowns. However, I really love the way the La Scala mids/highs sound on the VRD's, and would prefer to keep them, and therefore would need some big ole SS amps for the bass bins and an Dx-38 to handle the xovers and amp leveling if this combination would sound better than just the Crowns.

Of course I also need to come up with about $10K, and that's another 6 - 9 months down the road, but it doesn't hurt to plan ahead.

Mike