Hi

I am trying to verify the Ohm of the Infinity RSM?

I believe I was told they are 4 Ohm.

Is that correct or are they 6 Ohms

Thanks

infinity quoted it as 4-8 Ohms.

http://www.infinity-classics.de/infinity/technik/manuals/RS_Monitor_technical_sheet.pdf

Infinity quotes mine as 4-8 ohms also.

I attached the actual curve. blue is the left speaker, green is right.

This has nothing to do with your speakers other than advice to take what Infinity shows on the spec sheet with a grain of salt - it may not match your actual speakers.

I only tested these after having a couple 4 ohm capable recievers that wouldn't drive them without going in and out of protect.

I am pretty sure both of our speakers have the same tweeter, which would put your impedance above 8k at 3 ohms or lower.

Thanks all:

I have the EMIT tweeter in the RSM.

I asked this because I picked up a new Pioneer sx 1250 a 160 wpc and it cuts out sometimes when I start pushing a little, not too much.

The pioneer experts asked what Ohm the speakers were.

I have been driving the RSM with a Pioneer SX 1010, a 110 wpc, so don't know why or how it could be the speakers.

thanks

i'm guessing it's something wrong with the pioneer. it should handle these infinities just fine.

i'm guessing it's something wrong with the pioneer. it should handle these infinities just fine.

I'm guessing a complete recap of the SX-1250 might be in order :scratch2:

The protection circuit may be more sensitive on the 1250 than the 1010 (or broken on the 1010).

I have a 1050 and 1250, neither of which can drive my big infinities without going into protect for a half second at a time during bass notes. Both of them have had full recaps and have had the entire protection boards rebuilt (every transistor, diode, and cap) while I was trying to solve the problem.

I was in a similar situation, not accepting that the speakers were the problem (since they are rated as 4-8 ohm, and the recievers are rated as 4 ohm capable) until I finally measured the impedance across the full frequency range. Now I have an Adcom amp to drive them. I still use them on the pioneers occasionaly at low volume, but they pop in and out of protection at such a low volume with some music that it is essentially useless for anything other than background music.

For comparison purposes, I can run 2 sets of 8 ohm speakers on the 1250 without it going into protect until after the 12:00 point.