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#71469 - 10/11/05 07:57 PM Re: 1070 review
vicikid Offline
Deputy Gunslinger

Registered: 09/19/05
Posts: 13
Loc: Loveland, Ohio
I agree with the comments of "brightness" at the limits of volume... which is what I experienced watching Jurassic Park. His comments of using an efficient speaker make sense, based on the 2-channel power ratings... but I listened to Klipsch and Paradigm (both very efficient speakers)... but they didn't sound as good to me as the Rockets so instead of choosing speakers that work with my receiver, I'll need to choose a receiver that works with my speakers. Looks like I'll be spending this weekend trying the 1070 again with the 8ohm setting and will be comparing the Yamaha and the Outlaw with the SPL meter to see what the differences are - as well as my ears for clarity, image, soundstage, etc.

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#71470 - 10/12/05 03:03 PM Re: 1070 review
charlie Offline
Desperado

Registered: 01/14/02
Posts: 1176
Quote:
Originally posted by Smitty:
[QB]]Sure, if you sit 1 meter away from your speakers laugh
And have one speaker .....

In real life I listen to a fraction of a watt, up to maybe 3-5 watts average output. Peak loads are generally 30-50 watts, in a big room. not counting bass, of course.
_________________________
Charlie

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#71471 - 10/18/05 05:25 PM Re: 1070 review
brubacca Offline
Gunslinger

Registered: 12/11/04
Posts: 84
Loc: Mount Laurel, NJ
Things brings up an interesting observation. I recently got one of those fancy power filters. I have all my devices through it. I can look at what the current draw is on the components. In my admitedly small Room I only draw 1.7 amps on the whole 5 channel amplifier during the lobby shooting scene in The Matrix. That was the peak! Watts = Resistance x Current^2.. Assuming that my speakers are 8 ohm nominal that formula comes out to 23 Watts, Total on the Amplifier. That means this blistering loud scene drew less than 5 Watts Per Channel. My room is 12ft x 14 ft, and my speakers are set to small. I would have to say that 65W per channel would be more than adequate in my size room.


Moral of the story. 65W should be plenty of power unless you are driving huge inefficient speakers in Big rooms.

Regards,

Charlie
_________________________
Charlie,
Outlaw 970, B&K AV5000, Paradigm Ref 20 and CC (V1), Martin Logan Dynamo, Sony 42" RPTV, Toshiba HD-A1

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#71472 - 10/18/05 08:26 PM Re: 1070 review
painttoad Offline
Desperado

Registered: 10/25/04
Posts: 688
Loc: peoria il
where was the spl meter?

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#71473 - 10/18/05 09:48 PM Re: 1070 review
vicikid Offline
Deputy Gunslinger

Registered: 09/19/05
Posts: 13
Loc: Loveland, Ohio
For me, the spl meter was at the listening position (right next to my couch) at ear level.

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#71474 - 10/19/05 02:14 PM Re: 1070 review
charlie Offline
Desperado

Registered: 01/14/02
Posts: 1176
Quote:
Originally posted by brubacca:
Things brings up an interesting observation. I recently got one of those fancy power filters. I have all my devices through it. I can look at what the current draw is on the components. In my admitedly small Room I only draw 1.7 amps on the whole 5 channel amplifier during the lobby shooting scene in The Matrix. That was the peak! Watts = Resistance x Current^2.. Assuming that my speakers are 8 ohm nominal that formula comes out to 23 Watts, Total on the Amplifier. That means this blistering loud scene drew less than 5 Watts Per Channel. My room is 12ft x 14 ft, and my speakers are set to small. I would have to say that 65W per channel would be more than adequate in my size room.


Moral of the story. 65W should be plenty of power unless you are driving huge inefficient speakers in Big rooms.

Regards,

Charlie
Actually the draw was 1.7 amps at a nominal 120 volts. About 200 watts consumed, but amps are nowhere near 100% efficient, and on the other hand, the amp power supply would prevent the line conditioner from seeing the real short term peaks.

Nutshell: Your test doesn't mean what you think it means, but it's interesting.
_________________________
Charlie

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#71475 - 10/19/05 09:24 PM Re: 1070 review
Smitty Offline
Gunslinger

Registered: 09/07/04
Posts: 16
Hey Walter, have you had a chance to try out the 1070 with the switch in the 8ohm position?

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#71476 - 10/19/05 10:57 PM Re: 1070 review
vicikid Offline
Deputy Gunslinger

Registered: 09/19/05
Posts: 13
Loc: Loveland, Ohio
Just started to... not much change. I was able to dial down the trim by 1 or 2 dB per channel and still hit 73dB with the test tone. Got the CD player back and ran some 2 channel tests, in stereo and bypass. Bypass doesn't drop in level as it did before and I can run high 80's low 90's on the SPL meter. Running in the mid 80's on the couple of movies I tested. With all of those tests, I do notice a brighter (bordering on harsh) sound as compared to my previous receiver... and even compared to almost maxed out volume at the 4ohm setting... but then again, I didn't get quite the same volume levels at the 4ohm setting I'm getting now. Haven't had a chance to try the DVD-based music videos yet to see if there's been a change.

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#71477 - 10/30/05 09:43 PM Re: 1070 review
Smitty Offline
Gunslinger

Registered: 09/07/04
Posts: 16
Quote:
As you would expect from the Outlaws, the RR2150 delivers solid, no-compromise two- channel performance. The robust amplifier section delivers 100 watts per channel into 8 ohms (20 Hz 20 kHz, less than 0.03% THD, both channels driven), and 160 watts into a 4-ohm load. As a product designed for music listening, even most demanding musical peaks are not a problem thanks to ample filter capacitor reserves.
Now that's what I'd would have liked to see in the 1070!

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#71478 - 10/31/05 05:49 PM Re: 1070 review
Ragnar Offline
Gunslinger

Registered: 05/02/05
Posts: 49
Smitty,
I hear you. However, I will say that this past weekend I really put my 1070 through the paces, listening to some demanding 5.1 SACD/DVD-A music. I could only get to 0.00 dB before I thought I was damaging my ears; it must have been the blood coming from them.

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