• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Electro Voice Aristocrat Upgrade Advice

CRBSPTN

New Member
Hello, new to this forum and would like some advice from all of you knowledgeable stereophiles, especially those that have run vintage EV stuff. I have had the same audio system since college (35 years) and have wanted to upgrade my system for a while and finally gotten around to it this summer. I replaced Carver M-500t amp & NAD Pre-Amp with a McIntosh MA6600 Integrated Amp. I've tried probably about 10 sets of speakers on this amp and in my listening room, not been super happy with any of them, until I tried a EV Aristocrat Speaker with 16 ohm SP12 driver. Actually picked up a pair of EV speakers (One Aristocrat and a matching EV speaker (not sure of enclosure model but it is the same size and finish as the Aristocrat but not a corner speaker design, matching SP12 driver). The low end if just what I was looking for in these. Of course with the coaxial speakers, the upper end is not up to par, but I love the enclosure and that deep base, so I am looking to build my speakers with the Aristocrat enclosure. For the time being, I stacked a Klipsch KG2 on top and it together it sounds amazing. Just picked up a 2nd matching pair of Aristocrats with 16 ohm 12TRXB drivers for which I will use the cabinets. Locally, there is also a pair of newer vintage commercial EV speakers from a recording studio for sale at a reasonable price that contain 8 ohm EV SP12C drivers, EV 1823 mid range with 8" horns, and EV T-35 tweeters with crossovers and pots, all look to be in excellent condition.

So looking for some advice on what components I should use. The SP12 has a much heavier magnet that the 12TRXB or the SP12C and when sold, SP12 and 12TRXB sold for about the same price. The Aristocrat manual suggests pairing the SP12 with a T-35 tweeter rather than a tri-axial if budget allowed. They also offered a T-25a midrange horn option for the SP12.

The other complicating factor is that the McIntosh amp does not have 16 ohm outputs, only 8, 4 and 2, but not sure if that really has much effect as they really sound great as is.

So I am looking at three options:

1. Use the 16 ohm SP12 drivers, pair with some used 16 ohm T-35 tweeters (T-350s are out of my budget) and crossovers. Maybe add the T-25a and crossover when I find them reasonably priced.

2. Use the 12TRXBs.

3. Buy the 8 ohm commercial set and install in the Aristocrat enclosures.

Welcoming advise on how I should proceed. Leaning toward either Options 1 or 3.

Thank you.
 
Register to hide this ad
Welcome to AK, CRBSPTN!

You're not the first person to be smitten with the Aristocrat. I haven't listened to any since the 1970s, so I have no memory of their sound. But their popularity says all that needs to be said about their widespread appeal.

It's all but impossible to answer your question without knowing which "commercial" EV speaker you have in mind. But, if I remember correctly, EV suggested, naturally, that it be configured as a three way speaker for optimum results.

I would recommend that you build them 3-way from the very start using one of the EV-recommended loadings of:

Woofer: SP-12
Mid Horn: 8HD/T25A (horn/driver)
Tweeter: T-35

https://picclick.ca/Ev-Kd6-Aristocrat-Detailed-Ev-Speaker-Plans-222429475665.html#&gid=1&pid=2

You can avoid some trouble/complexity/expense by building your own 3-way crossover. This way, impedance-matching becomes a non-issue as you can construct the crossovers to match the drivers you have. You can match EV's crossover points with a 12dB/octave (second-order) crossover built to 800Hz/3500Hz. Here's a very good site with a tutorial on building crossovers, and a simple calculator for designing them:

https://www.diyaudioandvideo.com/

Alternatively, you can use the EV X8 and X36 crossovers, but you will need to make sure that the drivers are all 8ohm.

Let us know how you proceed. And good luck.

GeeDeeEmm
 
The advice above is very solid. Let me add to the confusion. My suggestion is to use as a starting point the 12trxbs mounted in the Aristocrats without any other drivers if the pots on the trxbs are working properly. Stick with this a few days and try different genres of music. This is the configuration I use and really enjoy. It’s simplicity appeals to me greatly. You may find this configuration works for you as well.

Then you can begin experimenting with other configurations to discern any improvements. Then decide what combination appeals to you the most.
 
Thanks for the input! I have another idea, please let me know if this is a bad idea...

Split the amp input inside the speaker cabinet into two. One lead goes to a 16ohm x36 crossover, then to the 16 ohm SP-12 driver, connect nothing to the high output of this crossover. Mount as second 8 ohm x36 crossover, attach nothing to the low, high output goes to 8 ohm X8 crossover/lpads to the 8 ohm 1823 mid horn and T-25 tweeter. Thoughts?
 
Thanks for the input! I have another idea, please let me know if this is a bad idea...

Split the amp input inside the speaker cabinet into two. One lead goes to a 16ohm x36 crossover, then to the 16 ohm SP-12 driver, connect nothing to the high output of this crossover. Mount as second 8 ohm x36 crossover, attach nothing to the low, high output goes to 8 ohm X8 crossover/lpads to the 8 ohm 1823 mid horn and T-25 tweeter. Thoughts?

Do you intend to biamp? One stereo amplifier to power the woofers, and another stereo amp to power the mids/tweets? In that case, you will still need the X8 for each of the woofers, and X36s for the mids/tweets. No way around that. But biamping will work fine if you use the two separate crossovers. (Running the SP12s from the X36s will send all frequencies below 3.6kHz to the woofers - far beyond the recommended 800Hz.)

Regarless of whether you go biamp or full-range, you must have a couple of X8s and a couple of X36s for the stereo cabinets.

http://mypicsonline.net/archive/arc...iscellaneous Electronics/EDS/X8 & X36 EDS.pdf

GeeDeeEmm
 
Back
Top Bottom