AR-2ax binding posts

[rocdad]

AR-2ax binding posts/ *****Pics now added in post 10***

Pics now added

May be a dumb question, but.....

Just pickied up a pair of AR-2ax. The binding posts are a bit different. I can't find any indication of the polarity. Does it matter? It has the jumpers installed between the #2 and T. I am thinking positive(red) to #1; negative(black) to #2and T. Does this sound correct?

Thanks for the help.

 

[draftingmonkey]

Actually, (-) to #1 and (+) to the #2/T combo (I usually use#2 of the combo).

 

[dgwojo]

I'd just take a AAA battery and check which polarity makes the woofer extend and retract, the battery will identify the polarity, the positive should make the woofer extend if the internal wiring wasn't altered, make sure you only make momentary contact with the 1.5v battery. :yes:

 

[ARguy]

Connecting the Amp to Speakers.

Actually, (-) to #1 and (+) to the #2/T combo (I usually use#2 of the combo).

Draftingmonkey has it correct. (-) to #1 and (+) to #2/T so says the AR Louspeaker manual. How about some pics of those bad boys!

 

[rocdad]

Thanks. I will post the pics tomorrow. A good story to go with them.

 

[Aage]

Removing the jumper between "T" and "2" allows for powering the tweeter independently, IIRC. Bi-amping, in other words.

T is for tweeter, that's good enough for me.

 

[ozmoid]

Removing the jumper between "T" and "2" allows for powering the tweeter independently, IIRC. Bi-amping, in other words.

T is for tweeter, that's good enough for me.

Actually, ADDING the strap between "2" and "T" puts all 3 speakers into operation. REMOVING the strap reverts the speakers to woofer-only.

 

[Aage]

Actually, ADDING the strap between "2" and "T" puts all 3 speakers into operation. REMOVING the strap reverts the speakers to woofer-only.

Hmmm. Well, you're right. In fact, we're saying the exact same thing. Remove the strap, you can bi-amp or run the woofer only, according to your taste.

 

[ozmoid]

Hmmm. Well, you're right. In fact, we're saying the exact same thing. Remove the strap, you can bi-amp or run the woofer only, according to your taste.

I'm pretty new at this, but wouldn't you need a fourth post to bi-amp the speaker? Can you run both neutral/negatives to the same post from two different amps? Inquiring minds want to know!

 

[rocdad]

I bought these from a guy who restores vintage speakers. He built them from the boxes. The crossovers and cabinets are original. The woofers are next generation AR. The mids are are textile dome, and the tweeters are also textile dome. The grills are his own attempt (I have new ones coming). The cabinets are very nice. They sound very good, but not as they should. I am doing A/B tests against some Norman 331's. Every time I think these are lacking in some way, they go and surprise me. I was happy to see the thread on the crossover rebuild. I think that will wake these up. The seller did not do any rebuild to the crossovers. The pots are rough and are really holding these back.
I knew what I was buying and I did not pay much ($66). I kind of felt bad that I got these so cheap, so I brought a peace offering. I brought him some no-name speakers that I picked up free, a few weeks ago. The cabinets are flawless and drivers are perfect. They just lacked technology. He is a cabinet guy and was touched by my offering.

We shot the shat for a while and we got to talking about receivers and Sansui. He told me he had one that he barely uses. He showed it to me and it was a 7900Z (see pics). I told him to let me know if he wants to sell it. He said, "I want to sell it". I made him an offer and he accepted. It is very nice and functions like new. I know the mixed sentiment with this era of Sansui, but I have always lusted after the 9900Z. This is as close as I will get, and I am happy. To sweeten the deal and reciprocate for my offering, he gives me a vintage Realistic STA-240 receiver (see pic). It is perfect. 60WPC I believe. Has the analog tuner and digital readout.

Now the pics.

Thanks for reading,
Dan