help please

sageleo

My current set up is monitor 40's biwired run off of an h/k avr 245. I just got a pair of rt20p's and I'm using the same biwire but when I hooked up the speakers my avr starts blinking protect and shuts off. Have I done something wrong? If so how do I fix it?

thanks

Face

Check the new speakers with a Ohm meter.

beardog03

RT 2000 P`s ?

sageleo

hmmm... not really sure what u mean ohm meter? my h/k might not be suitable for the speakers?

sageleo

nope rt20p

sageleo

I will also say that it only seems to go to protect mode at higher volumes. Is it bad for the speakers or reciever if I use them just not at higher volume?

Dennis Gardner

Hook them up one side at a time to isolate the short/load issue.

sageleo

I tried that and it still goes into protect, now the biwire is diy biwire could that be an issue?

Dennis Gardner

I still say short/load issue. You may need to check out the wiring diagram.http://www.polkaudio.com/forums/showthread.php?t=38755

sageleo

dennis thank you for the link. I'm not really sure how to read the diagram tho, or what its supposed to tell me, when u say short/load what do u mean?

Dennis Gardner

Your HK only goes into protect when it "sees" trouble in the signal path. You new speakers may have speaker wire, crossover, internal speaker wiring, or internal amp (since they are powered) issues.

I would run them without the biwire to see if that makes a difference. + or - switched inside of a speaker at the back of the terminals may be seen by your AVR as a short. Just guessing......

sageleo

ok I think I'm followin you. Does the fact that it only goes into protect when at higher volumes matter at all?

Dennis Gardner

I'm not too familiar with the powered section of the RT20p, as how the inputs work, but biwiring into high level inputs for the subs might be your issue.

Are there 3 sets of speaker connections for high, mids and subs or just 2?

sageleo

there are 2 sets of speaker terminals, they are connected with brass jumpers. there is also line level in and out. I have it connected as follows. speaker wire into the top terminal w/jumpers removed, and sub hooked up from sub out on receiver to line level in on one speaker then line level out on same speaker to line level in on other speaker. I didn't get a manual with speakers, I work for a moving company and got them as a tip today.:o

Dennis Gardner

I bet your biwire on the bottom pair is in conflict with the line level sub input. This is a common issue with the LSi25 speaker. The bottom speaker jacks aren't tied to the mids, they are actually the high level inputs to your sub amps. This could be your issue...........simply disconnect from the bottom and run only into the top pair, if using the line level inputs too.

sageleo

yup thats how I have them, just plugged in on the top set, but it said to remove jumpers if using line level. sorry if I worded it wrong in last post.

Dennis Gardner

Then you aren't biwiring?

sageleo

correct, my old speakers monitor 40's I had biwired, and the plugs at speaker end of the wire allowed for the 2nd set of wire to be plugged into them. I dont know if that makes sense or not.

Dennis Gardner

I get it............it still sounds to me like the speakers may have some crossover issues that make the receiver see too difficult of a load to drive at volume. HKs have nice amp sections, but they still have limits.

What happens when you hook them up using the high level inputs?

sageleo

High level for the sub as opposed to line level?

Face

That receiver should have no problem with a small 8 ohm speaker.

Dennis Gardner

sageleo wrote: »

High level for the sub as opposed to line level?

Yep, this might change the load for the receiver. Run them set to large with no sub in your OSD.

This isn't optimum for movies by any stretch, simply a load change test.

sageleo

I wouldn't say they are small... way bigger then my old monitor 40's

sageleo

so hook up my other set of wires to high level, unplug the sub cable and change speakers to large and sub to off?

Dennis Gardner

Yep...just trying to resolve your receiver shutdown issue. If that works, then the load change caused by the sub amps resistance may indicate that you have issues in the top end of your speakers in the crossover.

sageleo

Dennis, by god I think you've got it. I was able to turn it up to -15 db and still didnt "protect". When using line level could only go to about -28 db. I thank you for all of your time and help you gave me. Do you know why it doesn't work with sub pre out w/o shutting off? anywho thanks so very much.

Dennis Gardner

I think that some of the old crossover components may be going south. They aren't really that old, but if the values have changed, it may be your issue.

Dennis Gardner

I would definately contact Polk Customer Service and talk with them about the issue. They may have you send in parts, or can help with measurements in self testing. They are great to work with!

sageleo

alright I will contact them, and see what they say thanks again have a good one.