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WOW!! what a difference a little power makes!


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#1 of 26 OFFLINE   RobWil

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Posted May 03 2003 - 06:39 AM

I have been upgrading my system a little. I went from an H/K AVR25...75wpc x 2, 65x5 I think, with an old 50W Velodyne. Now I have an Integra DTR-7 for my pre-pro, a 500W Infinity sub, and two Audiosource Amp Ones...one for each front channel giving me around 200wpc x 2. I had two sets of floorstanders...Klipsch KG5.2's (sensitivity 96d, 100W RMS rated) and a pair of Polk Audio LS50's (sensitivity 89db, 250W RMS rated) both 8ohm. I always thought the Polk's sucked so I stuck them as my rears and used the Klipsch up front, but I guess I never threw enough power at the Polks because ...DAMN!....hooked up to those 200wpc external amps they kick butt! YOW...frickin'...SAH!...is all I can say.
Since I have a matching Polk Audio center channel I sure would like to get another pair of the LS50's for the rear now. Anybody wanna trade Posted Image
But seriously....if anyone out there has some high power capability speakers and is throwing a piddly amount of power at them, you might want to reconsider.

Oh yeah...and BTW....Rush 2112 makes a great test for your system!
that's my story and I'm stickin' to it!

#2 of 26 OFFLINE   Kevin Alexander

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Posted May 03 2003 - 07:02 AM

I had some Polk LS50's. Those speakers were so uninspiring that I almost got out of the HT game altogether. A host of bad memories come to mind everytime I think about them......OMG, here comes another bad memory.Posted Image
"What does God want with a Starship?" - Captain Kirk from Star Trek V: The Final Frontier.

"For the first few minutes of the film, I had accidently listened to the Dolby Digital track." - Ron Epstein (HTF)

#3 of 26 OFFLINE   RobWil

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Posted May 03 2003 - 07:37 AM

That's what I thought till I threw 200wpc at them Posted Image

BTW....sorry to dredge up bad memories!
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#4 of 26 OFFLINE   Michael R Price

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Posted May 03 2003 - 07:55 AM

Rob, what are the differences in sound between that and using only a single Amp One in stereo?

#5 of 26 OFFLINE   RobWil

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Posted May 03 2003 - 08:51 AM

Well the single Amp One is only 80wpc, of course, although a pretty hefty 80wpc I might add. But, when I was listening at very loud levels I found the single Amp One to be near max power when powering the LS50's. These are 89db sensitivity, keep in mind and can handle 250wpc. For something like my Klipsch @ 96db sensitivity it prolly would have been fine. But, overall, very clean, clean sound even at very high volume with lots of power to spare.
Besides...I got the two off of ebay for a combined $240 shipped to my house Posted Image
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#6 of 26 OFFLINE   EarleD

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Posted May 03 2003 - 12:20 PM

Rob, I agree I have a Klipsch KG HT. 5.2's as mains and surrounds. I use a Rotel RB-1070 and RB-985mkII with them and they sing. IMHO, nothing makes a speaker sounds its best like clean strong amps. Earle

#7 of 26 OFFLINE   Michael R Price

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Posted May 03 2003 - 03:50 PM

Oh, so it was using the 89db speakers where it made the difference. Whew. I was about to ask about your hearing. Posted Image

#8 of 26 OFFLINE   CurtisC

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Posted May 04 2003 - 03:10 AM

2112 yes,200 watts YES,polk nah, bad memories and pain in my wallet.I should clarify my pain came from rt 2000i's,wow,worst 1700.00 I ever spent,it still hurts.

#9 of 26 OFFLINE   RobWil

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Posted May 04 2003 - 03:24 PM

[quote] Whew. I was about to ask about your hearing. [quote]
WHAT!?!? HUH?!?! Speak up, sonny!!! Posted Image
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#10 of 26 OFFLINE   RobWil

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Posted May 04 2003 - 03:27 PM

[quote] Oh, so it was using the 89db speakers where it made the difference. [quote]

Yeah...I think you could power the Klipsch with a Walkman Posted Image
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#11 of 26 OFFLINE   Michael R Price

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Posted May 05 2003 - 09:25 AM

Rob,

Or an orange, potato, or any other electrical cell. Ever seen a clock powered by an apple? Posted Image Seriously though, some people actually use 12-volt batteries (maybe the kind used in cars, or smaller) to power their amplifiers and other equipment. And I say the optimum solution to power problems is not to buy more powerful amplifiers but more efficient speakers.. well, I don't practice what I preach. My speakers are 87db.

#12 of 26 OFFLINE   RobWil

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Posted May 05 2003 - 11:50 AM

Seems to me I read somewhere that there is a trade-off when going with more efficient speakers. Can't remember what is was though Posted Image
Anybody ever heard this?
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#13 of 26 OFFLINE   Bob McElfresh

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Posted May 06 2003 - 02:51 AM

It is amazing what a good amp can do.

I had some old Advent 1's with a Techniques 120 wpc stereo receiver. I used it in the VHS Pro-Logic days. The results were ... so so.

One Christmass, my wife gave me my first HT receiver: a 80 wpc Yamaha.

Bravely, I un-packed the unit to hook it up (all the while planning to re-pack it and take it back for something 'better'/more powerful).

I was stunned at the difference that the 'lower-power' receiver made. It was a whole new system.

More experienced members have already done the math:

Techniques stereo receiver, 120 wpc X 2 = 240 watts total
Yamaha HT receiver, 80 wpc X 5 = 400 watts total

Not all that power was available to just 2 channels, but the newer Yamaha had other quality improvements over the old Techniques receiver.

#14 of 26 OFFLINE   RobWil

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Posted May 06 2003 - 04:05 AM

[quote] It is amazing what a good amp can do. [quote]
Copy that!

Well the KG5.2's were just too big for the rears so I swapped them out with the Polk's last night. First time I've tried the Klipsch's with both amps. Wow! Big difference there now too. With their high efficiency you would have thought that 80wpc of clean power wouldn't sound any different than 200wpc, but it sure seems to, even at lower volumes. Even as decent as the Polk's sound the Klipsch just seem to make the music sound more alive and certain 'tinkly' type instruments as well as saxophone and flute just sound like they're right there in the room. These sounds just sounded way more laid back with the Polk's...still good but not as real. I've been tempted to upgrade my speakers but these just sound so nice I can't imagine anything sounding that much better. And I only paid like $375 for the pair on closeout! I think they were originally around $850 a pair.
But anyway, I am extremely happy with these audiosource amps and would highly recommend them for anyone on a budget looking for some nice, clean power. I paid $240 for the pair on ebay, shipped. I got the 1st one for $145 shipped and the 2nd for $95 shipped. You can find some very nice deals out there....just make sure and check the sellers feedback.
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#15 of 26 OFFLINE   EarleD

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Posted May 06 2003 - 10:09 AM

See Rob. I run a Rotel RB-1070 with my 5.2's and love their sound. The 1070 is 130 watt/channel. I noticed at lower levels the speakers had more weight than with just my receivers amps earle

#16 of 26 OFFLINE   RobWil

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Posted May 06 2003 - 10:46 AM

Posted Image Yo EarleD...what up!?
This guy must have 300lbs worth of Klipsch's in his HT!

BTW....anybody know what the plural of Klipsch is???
Klipsch' ?
Klipsch's ?
Klipsches ?
Klipscheses ?
Klipschii ? Posted Image
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#17 of 26 OFFLINE   DanaA

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Posted May 06 2003 - 11:10 AM

And the correct answer is - ding, ding, ding... Klipsches

#18 of 26 OFFLINE   Michael R Price

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Posted May 06 2003 - 11:29 AM

Anyone want an Audiosource Amp One? I do actually own one... Posted Image

#19 of 26 OFFLINE   RobWil

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Posted May 06 2003 - 01:45 PM

Want?? or Wannabuy?? Posted Image

If you sell it I should get a kickback for plugging it for you ! Posted Image

Is yours the One or One/A??
Actually I might be interested!
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#20 of 26 OFFLINE   RobWil

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Posted May 06 2003 - 02:41 PM

[quote] And the correct answer is - ding, ding, ding... Klipsches [quote]

OK smartypants...prove it! Posted Image
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