6503 vs 6510

deronb1

Can i use 6503 in my rta 8Ts? Having trouble finding info. They originally came with 6511. Found where 6510s would work, but sure with 6503.

deronb1

NOT sure about 6503

westmassguy

The three schematics for the 8Ts show 6501, 6510, and 6516s for the rev2. All are 8 ohm drivers. The 6511 is 4 ohm.
The 6503 has very similar T/S parameters. You could use one in a pinch, but all the drivers should match.

deronb1

Thanks for the info. They are all 6503. Will see how they sound. Its kinda strange that the speakers are rated at 6 ohms but none of the drivers are.

westmassguy

The 8 ohm woofers are wired in parallel, which equals 4 ohms. The tweeters are 8 ohm. Polk Marketing split the difference, and depending on the model, listed them as 6 ohm, or 8 ohm compatible. In reality, an amp able to handle 4 ohm loads should be used.

deronb1

Makes sense. Holy smokes! Im lucky my early crappy AVRs i used with them after initial purchase didnt blow up. They came stock with 4 6511s.

deronb1

Also, i was wondering if you would have time to format a 2TB external hard drive for me? I think FAT is what THJ is using. Id be happy to compensate you for your time.

westmassguy

deronb1 wrote: »

Also, i was wondering if you would have time to format a 2TB external hard drive for me? I think FAT is what THJ is using. Id be happy to compensate you for your time.

No problem

westmassguy

deronb1 wrote: »

Makes sense. Holy smokes! Im lucky my early crappy AVRs i used with them after initial purchase didnt blow up. They came stock with 4 6511s.

Someone substituted them. If they were wired in series, they would have been 8 ohm nominal, however the crossover is designed for 4 ohm.