Rotel RB1095 can't handle Polk 707?
Do the 707s drop to 2ohm or something to shut down the Rb1095 when cross at 40-60hz?
Last weekend, at a house party, I crossed the 707s at 60hz with SVS SB13U. Volume is fairly loud at -10dB on the Denon AVR 3808. After a few hrs, the rotel went into protection mode, even though it's sitting on the floor with room temp is 70 degrees and only used 2 out of 5 channels.
It was an embarrassment to see your system died in the middle of the party. I took out a cheap Crown XLS 2500 pro amp to replace the rotel and the party went on for another 4-5hrs w/o any issues.
Anyone experienced problems with Rotel+Polk LsiM combo?
Last weekend, at a house party, I crossed the 707s at 60hz with SVS SB13U. Volume is fairly loud at -10dB on the Denon AVR 3808. After a few hrs, the rotel went into protection mode, even though it's sitting on the floor with room temp is 70 degrees and only used 2 out of 5 channels.
It was an embarrassment to see your system died in the middle of the party. I took out a cheap Crown XLS 2500 pro amp to replace the rotel and the party went on for another 4-5hrs w/o any issues.
Anyone experienced problems with Rotel+Polk LsiM combo?
Comments
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Do the 707s drop to 2ohm or something to shut down the Rb1095 when cross at 40-60hz?
Last weekend, at a house party, I crossed the 707s at 60hz with SVS SB13U. Volume is fairly loud at -10dB on the Denon AVR 3808. After a few hrs, the rotel went into protection mode, even though it's sitting on the floor with room temp is 70 degrees and only used 2 out of 5 channels.
It was an embarrassment to see your system died in the middle of the party. I took out a cheap Crown XLS 2500 pro amp to replace the rotel and the party went on for another 4-5hrs w/o any issues.
Anyone experienced problems with Rotel+Polk LsiM combo?
A properly functioning RB-1095 wouldn't even break a sweat running the 707's fullrange let alone with them crossed over at 60hz. I sounds like you might want to have it looked at or the only thing I can possible think of is that maybe after hours & hours of such loud playback that it might have had enough & needed to take a break. That might be the case for pretty much any amp pushed way too hard. Don't your ears hurt???
"2 Channel & 11.2 HT "Two Channel:Magnepan LRSSchiit Audio Freya S - SS preConsonance Ref 50 - Tube preParasound HALO A21+ 2 channel ampBluesound NODE 2i streameriFi NEO iDSD DAC Oppo BDP-93KEF KC62 sub Home Theater:Full blown 11.2 set up. -
pearsall001 wrote: »A properly functioning RB-1095 wouldn't even break a sweat running the 707's fullrange let alone with them crossed over at 60hz. I sounds like you might want to have it looked at.
I have to agree here. I have seen the Rotel push some very inefficient speakers that dip very low..
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the rotel is like new and actually can run all day if cross at 100hz. I tried that a few weeks ago but wasn't happy at 100hz cross.
my only guess is the rotel just can't handle the 707 near full range for a long period of time.
to my surprise the crown sounds the same and runs cooler. -
The 707's are 8 ohm nominal and are a very easy load.
The amp being like new means very little. Crossed at x means very little. Volume at -10dB means very little. How it performed previously means very little. Electronics fail at any given time for any number of reasons.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
is it me or the guy above sounds like a smartass? in my case, crossover hz is the difference between on and off.
or maybe I need to use another power cable?
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It is evident that something is wrong with the amp. Simple as that......have it checked out, the shutdowns are a warning signal. That amp should never act like that.HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable
2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable -
is it me or the guy above sounds like a smartass?
It's just you. His statement is sound.afterburnt wrote: »They didn't speak a word of English, they were from South Carolina.
Village Idiot of Club Polk -
I agree that something must be wrong inside that amp.
I previously had two Rotel amps that powered speakers much harder to drive than those are. Never had an issue. Rotel has historically been a maker of solid equipment.
I'd have that amplifier professionally serviced.Fronts:B&W 804 Diamonds, Center: B&W HTM2 Diamond, Surrounds: PolkAudio LSi F/X (4)
Subwoofer: HSU VTK3-MK3
Electronics: Onkyo TX-NR 3010 receiver, Parasound Halo A31 amp, NAD T975 amp -
Rotel stopped importing new RMB-1095 amps around 2006, so they are probably around 10 to 15 years old even if they do look like new externally. Time may have caught up with it. Rotel tended to use good but not great component parts in their amps and built them to a price point. If the amp was bought used, there's no way of knowing what previous owners did with it that may have heat stressed the internal parts. I also remember Rotel amps to run fairly cool because of the large heat sinks and operation class, even when run hard. I used to use Rotel products with the older 4 ohm LSi series speakers, which present a more difficult load and were solid performers for me. When functioning normally, the RMB-1095 should have no trouble with any five of the LSiM series run full range without a break. Also, I don't think the -10db volume level on the receiver is unusually loud in stereo mode.
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I doubt it would have trouble. 1095 is basically a multichannel 1080.Magico M2, JL113v2x2, EMM, ARC Ref 10 Line, ARC Ref 10 Phono, VPIx2, Lyra Etna, Airtight Opus1, Boulder, AQ Wel&Wild, SRA Scuttle Rack, BlueSound+LPS, Thorens 124DD+124SPU, Sennheiser, Metaxas R2R
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the rotel is like new and actually can run all day if cross at 100hz. I tried that a few weeks ago but wasn't happy at 100hz cross.
to begin with the Rotel is still sending out a full range signal to the 3808, the 3808 is handling where that signal is going to go....correct?
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You have that signal path backwards bro. The Denon is filtering out the signal, sending whats crossed over to the sub and amp, then on to the speakers.
Regardless, I'd echo what everyone else has already said. Something is up with the amp because that should handle the 707's with one hand tied behind it's back. That or you had some stray wires touching in the binding posts causing it to go into protect mode.HT SYSTEM-
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's -
If the amp was sitting on the floor on carpet or a rug, the protect mode could even have been triggered by a static discharge in the system if it was a one time thing.
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You have that signal path backwards bro. The Denon is filtering out the signal, sending whats crossed over to the sub and amp, then on to the speakers.
Regardless, I'd echo what everyone else has already said. Something is up with the amp because that should handle the 707's with one hand tied behind it's back. That or you had some stray wires touching in the binding posts causing it to go into protect mode.
well that is what I get for thinking early in the morning......
carry on.... -
If the amp was sitting on the floor on carpet or a rug, the protect mode could even have been triggered by a static discharge in the system if it was a one time thing.
Very good point.
Also, if on carpet it would have restricted the movement of air up and out of the heatsinks leading to overheating.
Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
the amp was sitting on floor wood all the time.
I couldn't tell between the Rotel and Crown, but last night my wife mentioned that the Rotel sounds better. I asked her how and she said she couldn't explain.
I guess I've to fix the Rotel, but not sure how since it only fails in a specific condition.
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Static can exist on a wood floor too....it's called dust, and static lives there. Good ears your wife has btw.
Take it to a local tech, tell them the problem your having and to give it the once over. Looking for any cracked or broken solder joints, bad resistors/caps and that everything is performing up to spec.HT SYSTEM-
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's -
Interesting thing I found last night while pushing the 707s full range is that the bass is not that clean. it just dragged on too long. reminded me of the clubbing days when I was young.
Crossed it at 60hz to let the SVS SB13 took over and much better result.
why didn't polk make a tall 703? or sealed 707 without the woofers? -
call Rotel and send it to them. There will be a $150 bench fee plus parts. If they find nothing wrong with it you still have to pay that -150.
Do you have another set of speakers you can test the amp with?
If its a 5ch amp why dont you use 4 of the 5 to power the speakers, assuming your speakers have four post?B&W CM9Classé Sigma -
Interesting thing I found last night while pushing the 707s full range is that the bass is not that clean. it just dragged on too long. reminded me of the clubbing days when I was young.
Crossed it at 60hz to let the SVS SB13 took over and much better result.
why didn't polk make a tall 703? or sealed 707 without the woofers?
Something sounds off to me. Sounds to me like your over driving them or something is off kilter in your settings.HT SYSTEM-
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's -
I have sent an amp into protection momentarily due to static, just by touching the pre with my shoes on.Oh, Listen here mister. We got no way of understandin' this world. But we got as much sense of this bird flyin in the sky. Now there is a lot that bird don't know, but it don't change the fact that the world is happening to him all the same. What I am tryin to say is, is that the course of your life, well its changing, and you don't even see it- Forest Bondurant
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Funny, I discharge myself on my amp before I touch any other gear. It can take a direct short so a little static discharge ain't nothin'.
H9"Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul! -
Funny, I discharge myself on my amp before I touch any other gear.
H9
Brock.... Do you wipe it down after discharging on it? I would hope so!
"....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963) -
2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
erat interfectorem cesar et **** dictatorem dicere a -
You owe me a new phone screen Dan.....
That shite funny.... -
Damn, that sure was worded the wrong way!!!! But it sure was funny!
To clarify; Before changing the volume on the pre, or anything else if I know it's a static situation I always touch the amp first before any other component to discharge the static electricity. It's become almost muscle memory in the Winter time to do this.
H9
P.s. The Aleph is impervious to a direct short, needs/has no protection circuit, is built like a tank.........so I am NOT suggesting that others follow the above procedure. Just saying what I do in that situation."Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul! -
finally sold it for 1000. now looking to spend that money on another used good sub like svs or jl. maybe another sb13u to match the other. bought the current sb13u used for just $700
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You sold the amp that has problems dor $1000? Better hold onto that 1k if you did, especialy if they paid with paypal!
