 Re: M80 tweeter damage - may need a separate ampli
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Joined: Mar 2007
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Quote:
Speaker wire table.
Thanks for the table link. I ended up reading the entire article - good read on the dubious claims made by boutique wire manufacturers. I remember seeing that Monster XP demo in Circuit City stores.
A: Epic 80 * 600 / Integra DTC-9.8 / A1400-8
V: Samsung HL-S6187W / Tosh HD-XA2 / PS3 / Oppo 970HD
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Re: M80 tweeter damage - may need a separate amplifier
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Joined: Mar 2002
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Hello Haylo
I have a pair of Thiel CS 3.6's which are also 4 ohm loads. I went with separates ... I picked up 3 Yamaha M80 2 channel amps and an Onkyo Integra M504. The Yammies are stable even with 2 ohm loads. I use one of the Yammie brutes for the Thiels. Never a problem. I use a separate processor - I picked the Integra DTC 9.4 but there are many great processors out there in the price range.
For spec junkies, the specs on the Yammie M80s are superb:
Continuous power at 8ohms 250 wpc THD 20Hz-20KHz 0.003%
4 ohms 330 wpc 0.07% THD
Damping factor 250
SNR 127 DB
A good used 2 channel amp can be a great buy and if you have the room, a breeze to drive your speakers.
Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.
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Re: M80 tweeter damage - may need a separate ampli
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Those sound like nice amps. I've been doing lots of separates research since beginning this thread, and increasingly, that is the conclusion I'm coming to in general. I'd really like to see what comes out on the processor market in the next few months to a year though before making a processor purchase. I'm contemplating returning my Onkyo 805 and going back to my 8 year old Onkyo TS-DS777 to use as a processor for the time being. It doesn't have near the options that the new 805 has, but I can live with that for awhile.
I recall an issue I had in car audio with pre-out voltage for some head units not supplying enough power for higher end amps. Nowadays a lot of the car amps, for instance my JL Audio models, have input sensitivity switches to deal with the sometimes wide variance in pre-out voltage. The pre-outs on my 777 are 1V / 470 ohms. I recall the Outlaw 7500 saying it wanted 1.4 ish volts input for full rated output. Is this a figure that's going to differ by a lot from amp to amp? As far as I can recall, I don't see input sensitivity options on any of these home theater amps.
A: Epic 80 * 600 / Integra DTC-9.8 / A1400-8
V: Samsung HL-S6187W / Tosh HD-XA2 / PS3 / Oppo 970HD
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Re: M80 tweeter damage - may need a separate ampli
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Joined: Jul 2006
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Haylo,
if you are not really on a budget, I would recommend the new Axiom A1400-8 (8 channel amp) especially for your huge 8000cu.ft. room.
This amp will drive your speakers NO problem, and now since you are an Axiom owner, you may be able to phone into Axiom and get the pre-order price (which is now expired at the end of July). The amp has 1400 watts into 8 channels, fully digital and can dump the whole load into 1 channel if needed at any moment. I think the pre-order price was $2900 USD? I forget.
Last edited by Hutzal; 08/07/07 04:05 PM.
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Re: M80 tweeter damage - may need a separate ampli
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Joined: Mar 2002
Posts: 3,771 Likes: 41
connoisseur
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connoisseur
Joined: Mar 2002
Posts: 3,771 Likes: 41 |
Quote:
Those sound like nice amps. I've been doing lots of separates research since beginning this thread, and increasingly, that is the conclusion I'm coming to in general. I'd really like to see what comes out on the processor market in the next few months to a year though before making a processor purchase. I'm contemplating returning my Onkyo 805 and going back to my 8 year old Onkyo TS-DS777 to use as a processor for the time being. It doesn't have near the options that the new 805 has, but I can live with that for awhile.
I recall an issue I had in car audio with pre-out voltage for some head units not supplying enough power for higher end amps. Nowadays a lot of the car amps, for instance my JL Audio models, have input sensitivity switches to deal with the sometimes wide variance in pre-out voltage. The pre-outs on my 777 are 1V / 470 ohms. I recall the Outlaw 7500 saying it wanted 1.4 ish volts input for full rated output. Is this a figure that's going to differ by a lot from amp to amp? As far as I can recall, I don't see input sensitivity options on any of these home theater amps.
Before I picked up the Integra DTC 9.4, I used an Onkyo 797 front end as the processor for the separate amps. I never did an A/B comparison but I think I could have saved myself about $1700 and stayed with the 797.
I love Outlaw products, but I have a friend with the Outlaw 200 w monoblocks and they just don't seem to be a great match for the M60s. Could be my friend's room, or some other variable.
On the other hand, I have another friend with the Outlaw 5.1 receiver I think it was the 1050 or 1060, (65 wpc) and it is an incredible match with his M60s.
Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.
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Re: M80 tweeter damage - may need a separate ampli
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Joined: Mar 2007
Posts: 134
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Quote:
Haylo,
if you are not really on a budget, I would recommend the new Axiom A1400-8 (8 channel amp) especially for your huge 8000cu.ft. room.
This amp will drive your speakers NO problem, and now since you are an Axiom owner, you may be able to phone into Axiom and get the pre-order price (which is now expired at the end of July). The amp has 1400 watts into 8 channels, fully digital and can dump the whole load into 1 channel if needed at any moment. I think the pre-order price was $2900 USD? I forget.
You must be a telepath because that's exactly what I did today. I spoke with Brent and he said the first run was sold out but that I could have the one he'd purchased for the pre-order price. I read the long thread with all the talk about specs, and what intrigues me most is the ability you mention for the amp to dump a ton of power into one channel. So now it's just a waiting game!
I was also looking at Outlaw and Rotel, and I read up on Odyssey which looked like a great "bang for the buck" amp. I'm hoping I made the right choice by going with a brand new product. I'd not even have considered it, but the quality of the speakers I just purchased, Axiom's great CS and the 5 year warranty on the amp pushed me over the edge.
FYI - I'm not sure that it's published, but when I asked Brent about the length of the warranty he sent me an e-mail stating that it will be 5 years. No details other than that at this time.
A: Epic 80 * 600 / Integra DTC-9.8 / A1400-8
V: Samsung HL-S6187W / Tosh HD-XA2 / PS3 / Oppo 970HD
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Re: M80 tweeter damage - may need a separate ampli
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Hutzal,
I am getting the same feeling with my Onkyo 805 vs. the older 777. The 805 has a lot more DSP modes plus the PLIIx and DTS Neo variants, but when I use the modes that were also on my 777 I'm hard pressed to tell any difference.
I unhooked all my Axioms for the time being until I get my new A1400-8. I have been playing around with my old Infinity RS5's and the 805 receiver, and I am pretty sure that the front left channel is clipping at much too low a level (~65db at listening area). I tested two speakers I'm confident are in good operating condition and was able to replicate the issue with both speakers on the same source material. I don't have any equipment to test the amp directly, but I'm going to hook my 777 up just to make sure I'm not crazy.
Regardless, the 805 is most likely a few days away from being boxed back up and returned. I really like some of the features, but I'm thinking it's best to let HDMI 1.3 bake for awhile as I'd like to get a dedicated pre/pro for my next major purchase... of course in doing that the HDMI spec will be updated most likely twice before the companies that take their time with R&D get products to market; rinse and repeat.
A: Epic 80 * 600 / Integra DTC-9.8 / A1400-8
V: Samsung HL-S6187W / Tosh HD-XA2 / PS3 / Oppo 970HD
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Re: M80 tweeter damage - may need a separate ampli
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Joined: May 2002
Posts: 10,654
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Hay, you didn't describe how you determined that "clipping" was occurring, but if that's the case there's definitely a defect involved. 65dB is just about a normal conversational level and the speakers would be using less than a tenth of a watt at that level. Rather than different equipment, it may be wiser to correct the problem with what you have now.
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Enjoy the music, not the equipment.
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Re: M80 tweeter damage - may need a separate ampli
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You're right, the volume level was very quiet, which was quite disturbing. I was experiencing massive amounts of distortion, which I took to mean the amp was clipping. It's possible something else was wrong, though I have no equipment to test. Let me know if there is something else I can do in that regard. I hooked up my 777 tonight and it's running along fine like it always did, so I guess you could say the problem is corrected with what I have now  I don't have my M80's hooked up at this time though as the 777 isn't rated to handle a 4 ohm load.
A: Epic 80 * 600 / Integra DTC-9.8 / A1400-8
V: Samsung HL-S6187W / Tosh HD-XA2 / PS3 / Oppo 970HD
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Re: M80 tweeter damage - may need a separate ampli
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
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Okay, if at that level there was massive distortion with the 805(regardless of whether it actually fell into the "clipping" category)then your sample of the 805 is pretty clearly defective and should be returned for a replacement unit. Just to check the M80s further, you might connect the 777 to them to verify that they're working well, as is almost certainly the case. The 777 should have no problem with them, at least at moderately high levels(it's THX Select certified), as should also be the case with an 805 in good condition.
As to your previous 805 vs 777 comment, yes there'd be no reason to expect that the 805 would sound better if just the basic amplification was being used, without the different processing in effect. The just slightly higher power capability wouldn't become an audible factor in most instances.
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Enjoy the music, not the equipment.
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