Rotel power output

gwh

Rotel RB 985 100 Watts x5 @ 8ohms
Does any one know whatt the output is at 4ohms?
Manual reads :
DIN output-220 watts chan. 1khz 4ohm 1% thd.

So is it 220 x5 at 4?

$200 plus shipping a good price for this amp?




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hoosier21

that is a great price for that amp, it usually goes 450-500 I have been watching that amp and the mark II for a long time.

gshisme

I don't have an answer to your question but I would jump all over that deal. If YOU don't, please direct me to that deal!!!!

Greg

phuz

200 to 220 @ 4ohms is about right.

You will be labled forum idiot if you don't jump ALL OVER that deal RIGHT NOW. (as long as it's a functioning 6/10 or better)

gwh

I contacted the seller before I started this post and told him “hell yes I’ll take it!’’




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unc2701

Whoa! Major steal... did he forget to mention that half the channels don't work or something?

Anyhow, figure on about 170 watts clean power into 4Ohms. 220watts is the max dynamic power- notice the 1%THD at 1khz- not a good thing. SS power amps never have more than 2x power going into 4 ohms vs 8 ohms... For an equal THD, you'll get about 1.5-1.8 times as much power.

miner

Rotel's are very conservative when advertising their output. I would guess the 100X5 in 8 ohms is actually 130x5. I have been told also that Rotels are not designed to drive 4 ohms for a long period of time.

gwh

Crap! Someone chimed in just ahead of me.




amp




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unc2701

Hehe.... one of these guys probably went over to audiogon, found it, and offered him $250 to cut you out.

jmierzur

Originally posted by miner
Rotel's are very conservative when advertising their output. I would guess the 100X5 in 8 ohms is actually 130x5. I have been told also that Rotels are not designed to drive 4 ohms for a long period of time.

Really? Have not heard this before and have never had a problem these past three years with my Rotel amps having a 4 ohm load. In fact, the amps only have ever been warm, even after long periods of playing.

Rotels are not reccommended to drive 4 ohm loads when in bridged mode.

miner

I stand corrected then. My dealer told me this - why he would not suggest Dynaudio speakers.

On another note, my RA-1070 amp only has one set of speaker outs. How can I run a second set of speakers from this amp?

gwh

Hehe.... one of these guys probably went over to audiogon, found it, and offered him $250 to cut you out.

Oh well, I'd probably done the same if I really needed it.;)





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jmierzur

Originally posted by miner
I stand corrected then. My dealer told me this - why he would not suggest Dynaudio speakers.

On another note, my RA-1070 amp only has one set of speaker outs. How can I run a second set of speakers from this amp?

As per your Rotel manual:

"If only one set of speakers will be used at any
given time, the speakers may have an impedance
as low as 4 ohms. If there are times when
both the A and B speakers will be used, all
the speakers should have an impedance of
8 ohms or more. Speaker impedance ratings
are less than precise. In practice, very few loudspeakers
will present any problems for the
RA-1070."

The drawings and above text states you have the capability to connect two sets of speakers.

Personally, I would have listened to the Dyns with your integrated to see how the combination reacted together and sounded.

gshisme

Originally posted by unc2701
Hehe.... one of these guys probably went over to audiogon, found it, and offered him $250 to cut you out.

Well I did put my name on the dibs list..:D That listing probably did not last more than 5 minutes.

I dunno' though. Deals like that are almost TOO good to be true.

miner

Originally posted by jmierzur
As per your Rotel manual:

"If only one set of speakers will be used at any
given time, the speakers may have an impedance
as low as 4 ohms. If there are times when
both the A and B speakers will be used, all
the speakers should have an impedance of
8 ohms or more. Speaker impedance ratings
are less than precise. In practice, very few loudspeakers
will present any problems for the
RA-1070."

The drawings and above text states you have the capability to connect two sets of speakers.

Personally, I would have listened to the Dyns with your integrated to see how the combination reacted together and sounded.

Whoops, I misquoted my equipment - my power amp is a RB-1070 not RA-1070 (integrated map). My preamp is a RC-1070. Now with only one pair of speaker outs would I need to get another amp for the second set of speakers?

jmierzur

Originally posted by miner
Whoops, I misquoted my equipment - my power amp is a RB-1070 not RA-1070 (integrated map). My preamp is a RC-1070. Now with only one pair of speaker outs would I need to get another amp for the second set of speakers?

link

miner

Thanks, just what I am looking for.