Where did the SDA go?

[johndo18]

I have a pair of 3.1Tl's which i use a Adcom GFA-555 to power them. I started off using an old Sony receiver as a preamp and i was using cheap old RCA cables. Now ive upgraded recently to a Yamaha HTR-5660 for a preamp and i'm using a Monster Optical cable. Its seems that the sound stage has defintaley opened up alot however that sweetspot that SDA's are know for has disappeared. I no longer hear the voices coming from between the speakers but it seems as the sweetspot widened alot. My question is could it be the Optical cable? or maybe i have some setting wrong on the yammy? I mean what made the sweetspot go away? Tom

[madmax]

Did you move the speakers at all? I find that the distance apart from each other can make a huge difference. (as little as 3 to 6" difference).

[Tour2ma]

Sounds to me like the speakers are wired out of phase...

[johndo18]

No i didnt move them or touch the speaker wires since the upgrade...can you guys think of anything else it could be

[Tour2ma]

Thought you made the AVR and optical change at the same time. Apparently not...

Go back to the RCA's to the Yammie and see if the center stage reappears...

[Frank Z]

Double check your SDA cable. Make sure its still plugged in properly.

[DarqueKnight]

Originally posted by johndo18
I mean what made the sweetspot go away? Tom

Do you have all the surround/signal processing modes turned off on the receiver? I am not familiar with your receiver, but I had a similar experince with a Yamaha HTR-5250 and a pair of SDA CRS+ speakers if any of the signal processing modes were engaged.

[johndo18]

Ohh boy...looks like it turned out that one of the speakers was out of phase....some one slap me silly! Got it runnin now....I love my 3.1tl'

Go SDA

[F1nut]

Looks like another good call by Tour2ma.

Glad you're back in SDA heaven. :D

[Tour2ma]

Whad i win? Whad I win? :D

[fireshoes]

Congratulations Tour, you get a kick in the ass! :D

[Tour2ma]

Well, at least it'll hurt less than a kick in the nuts...