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Genesis 300 transducers

I recently bought a pair of Genesis 300's. After setting them up in my room and making a bunch of measurements I noticed about a 10dB difference between the right and left speaker around 10kHz. At first I assumed that the tweeters had something funny going on, but after more study I noticed a difference in the planar transducer attachments.

One speaker has a red and black wire coming out of the transducer with two wire connectors connecting it to the wires coming off the cross over. The transducer also has a Bohlender and Graebner sticker on it.

On the other speaker (with lower output) there are no stickers and the wires coming off the transducer are gray and white. These wires are soldered to the wires coming off the crossover with heat shrink on them.

If there are any Genesis 300 owners, or 350's for that matter, out there. Could you tell me which is the original transducer? Also, does anyone have any suggestions on how to balance the sound of these two beasts without buying 2 new RD-48's from parts express?
scvan
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mmcghee
7 posts
 
I have a pair of 350s and replaced the old ribbons with the newer BGs but still have the original drivers. The original drivers have a different design than the BGs. The front plane of the original is flat whereas the BGs are contoured. It is a distinct difference.
ngjockey
1,042 posts
 
It's also possible that one of the drivers got rewired in the wrong phase.
scvan OP
99 posts
 
Thanks for all the responses. I've determined the speaker with output that is lower has the original Carver driver in it. The other speaker has a newer BG driver. I will probably get around to "upgrading" the carver driver at sometime.
I think I will get more bang for my buck by doing some room tweaks to improve reflections and such.

Mmcghee, did you notice an improvement when you replace your ribbons with BG ribbons?
ngjockey
1,042 posts
 
http://cpskal.gr/equip10.htm

Noticeably different.

The crossover upgrade is no longer available.
scvan OP
99 posts
 
Thanks Ng for the link. Based on the pictures it looks like I have the newer crossovers and I think I have a newer base amp, it is the round one not rectangular. I'm still perplexed about what mid range drivers I have. They have been changed but the different color wires b/w the right and left channel makes me wonder what they are.

The thing that disappoints me about these speakers is their lack of imaging. I just bought a bunch of bass traps and diffusers for myself for Christmas, so hopefully that will help.
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