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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
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.
ngjockey
1,042 posts
 
They can have amazingly focused imaging if well setup. Should be well out into the room and no "soft" traps directly behind. As large line sources, they can make things seem larger than life but, opposite to logic, they can appear smaller the closer you sit, within reason. Personally, I prefer no toe-in to give a deeper stage.

I'm still thinking one of the tweeters got polarity reversed. Compare the wiring from one side to the other. You can remove the rear tweeter chamber and the panel behind the tweeters. PITA to stuff in all back in though.

I think the different colors just indicate that the ribbons were changed at different times.
scvan OP
99 posts
 
Bingo! The louder speakers RR tweeter is wired backwards. Black is going to positive.
ngjockey
1,042 posts
 
RR = Right Rear?

Caution, those are dipole not bipole. Since the crossover board has specific terminals for the rear tweeter, it should be easy to tell which is which.
scvan OP
99 posts
 
It was the right rear. The black wire was soldered to the + terminal of the tweeter. However all other tweeters have the black wire soldered to the negative terminal.
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