Onkyo PR-SC885P Preamp thread - Page 61 - AVS Forum
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Receivers, Amps, and Processors > Onkyo PR-SC885P Preamp thread
Bill Mac's Avatar Bill Mac 08:37 AM 03-09-2008
Quote:
Originally Posted by Artcon View Post

I have upgraded from an Outlaw 950 to the Onkyo 885 pre and am finding a large decrease in volume from the Onkyo in to my outlaw 7700 amplifier.

Bob,

Did you set all your channel levels at 75db using a SPL meter?

Bill

matnick2127's Avatar matnick2127 08:47 AM 03-09-2008
Quote:
Originally Posted by Gary Murrell View Post

waaaaaay to few details for us to make a nice choice or give advice on a amp

-Gary

I guess you need what speakers I have. Ok here goes:

L/R Front - Klipsch RVX-54
Center - Klipsch RC-62
Surrounds - Klipsch RS-52
Back Surrounds - Klipsch RSX-5
Sub - RW-12d

Any other information you require?

-Matnick
craig john's Avatar craig john 09:18 AM 03-09-2008
Quote:
Originally Posted by matnick2127 View Post

I guess you need what speakers I have. Ok here goes:

L/R Front - Klipsch RVX-54
Center - Klipsch RC-62
Surrounds - Klipsch RS-52
Back Surrounds - Klipsch RSX-5
Sub - RW-12d

Any other information you require?

-Matnick

Room size? How loud to you like to listen? Budget? Etc.

Craig
matnick2127's Avatar matnick2127 09:49 AM 03-09-2008
Quote:
Originally Posted by craig john View Post

Room size? How loud to you like to listen? Budget? Etc.

Craig

Oh ok
Room size: 26' X 14'
I like to listen fairly loud. Like to listen to clean sound.
Budget: Approx $1000.

What do you think of Rotel? Is that a good make? Want for a 7.1 system. Should I get one 5 channel and another 2 channel?

-Matnick
bayareakirk's Avatar bayareakirk 10:11 AM 03-09-2008
I've had the 885 for a couple of weeks. I LOVE it. Mine came with 1.05 firmware.

One problem I'm curious if any one has had. The single 12v input on the back does not seem to work. I have tried plugging in a powered antenna and a cooling fan but they would not turn on with the unit. I'd really like to get the cooling fan to only run when the system is running. Any ideas?
Artcon's Avatar Artcon 10:28 AM 03-09-2008
I used the RS meter to set the levels at 75db and it is not so much of a straight volume loss that bothers me as it is the clarity lost at these higher volumes compared with the 950.
I would expect an improvement if anything.
Gary Murrell's Avatar Gary Murrell 10:35 AM 03-09-2008
Quote:
Originally Posted by Artcon View Post

Thanks For your quick reply Gary, There are only RCA inputs on my amp, the interconnects that you are talking about convert the balanced to RCA?

the Outlaw 7700 is balanced as well no?



-Gary
Artcon's Avatar Artcon 10:55 AM 03-09-2008
Unfortunately I bought my amp 4.5 years ago and it didn't have the balanced connections.
Bob
Luffy's Avatar Luffy 02:42 PM 03-09-2008
Quote:
Originally Posted by bayareakirk View Post

I've had the 885 for a couple of weeks. I LOVE it. Mine came with 1.05 firmware.

One problem I'm curious if any one has had. The single 12v input on the back does not seem to work. I have tried plugging in a powered antenna and a cooling fan but they would not turn on with the unit. I'd really like to get the cooling fan to only run when the system is running. Any ideas?

I am assuming that you plugged them into Trigger B and/or C? If you did, did you check to make sure they are enabled in the menu?
Gary Murrell's Avatar Gary Murrell 02:54 PM 03-09-2008
Quote:
Originally Posted by pepar View Post

oooh, you're making us scroll left and right.


not on my 1680x1050 Sammy 24"

-Gary
rudolpht's Avatar rudolpht 05:09 PM 03-09-2008
Quote:
Originally Posted by Luffy View Post

I am assuming that you plugged them into Trigger B and/or C? If you did, did you check to make sure they are enabled in the menu?

Correct, you do need to set them on & they do work.
craig john's Avatar craig john 07:35 PM 03-09-2008
Quote:
Originally Posted by matnick2127 View Post

Oh ok
Room size: 26' X 14'
I like to listen fairly loud. Like to listen to clean sound.
Budget: Approx $1000.

What do you think of Rotel? Is that a good make? Want for a 7.1 system. Should I get one 5 channel and another 2 channel?

-Matnick

Seven channels for $1,000 isn't going to get you a *lot* of wpc. Emotiva makes a great product at half that money, but it's *only* 125 wpc x 5 and 50 wpc x 2:
http://emotiva.com/lpa1.html
Still, 125 wpc ought to be enough to drive those Klipsch speakers to pretty good levels, since they're so sensitive, and you probably don't need more than 50 wpc for your rears.

They also make a 200 wpc x 7 for $1,700:
http://emotiva.com/mps2.html

Craig
pepar's Avatar pepar 08:43 PM 03-09-2008
Quote:
Originally Posted by Gary Murrell View Post

not on my 1680x1050 Sammy 24"

Touché!

244T?
Gary Murrell's Avatar Gary Murrell 08:48 PM 03-09-2008
Quote:
Originally Posted by matnick2127 View Post

Oh ok
Room size: 26' X 14'
I like to listen fairly loud. Like to listen to clean sound.
Budget: Approx $1000.

What do you think of Rotel? Is that a good make? Want for a 7.1 system. Should I get one 5 channel and another 2 channel?

-Matnick

I'd save a couple hundred more bucks and spring for a Adcom, you can get a 7705 for 1250$ but you said you needed 7 channels, that size room needs some serious wattage, I'd go for 300w myself and with 7 channels you are looking at something well above that budget to do it right, you might also look at the Outlaw monoblocks at 200w, 7 of them would hit around 1600$ I think

or if you have bi-ampable speakers get 2 amps like the Adcom 7607(refreshed from 1call) or something along those lines

if I had that size room I would murder a Adcom GFA-7807 or ATI 3007

-Gary
Johnla's Avatar Johnla 03:21 AM 03-10-2008
Quote:
Originally Posted by Gary Murrell View Post

not on my 1680x1050 Sammy 24"

-Gary

Maybe so for you, but you still need to scroll L&R on a 17" widescreen HP laptop to see it all.
pepar's Avatar pepar 07:59 AM 03-10-2008
Quote:
Originally Posted by Johnla View Post

Maybe so for you, but you still need to scroll L&R on a 17" widescreen HP laptop to see it all.

Gary is larger than life, and so are his posts.
matnick2127's Avatar matnick2127 08:32 AM 03-10-2008
Quote:
Originally Posted by Gary Murrell View Post

I'd save a couple hundred more bucks and spring for a Adcom, you can get a 7705 for 1250$ but you said you needed 7 channels, that size room needs some serious wattage, I'd go for 300w myself and with 7 channels you are looking at something well above that budget to do it right, you might also look at the Outlaw monoblocks at 200w, 7 of them would hit around 1600$ I think

or if you have bi-ampable speakers get 2 amps like the Adcom 7607(refreshed from 1call) or something along those lines

if I had that size room I would murder a Adcom GFA-7807 or ATI 3007

-Gary

My Klipsch speakers max is 150 watts. If I could find something around 140 watts I think I would be happy.
Is Adcom a reputable amp? Never heard of them before.

-Matnick
pepar's Avatar pepar 09:35 AM 03-10-2008
Quote:
Originally Posted by matnick2127 View Post

My Klipsch speakers max is 150 watts. If I could find something around 140 watts I think I would be happy.
Is Adcom a reputable amp? Never heard of them before.

-Matnick

Adcom is very good, and a very good value as well. BTW, did you know it is easier to blow a "150w" speaker with a 140w amp than it is with a 300w amp?
matnick2127's Avatar matnick2127 09:48 AM 03-10-2008
Quote:
Originally Posted by pepar View Post

Adcom is very good, and a very good value as well. BTW, did you know it is easier to blow a "150w" speaker with a 140w amp than it is with a 300w amp?

No I didn't know that. What wattage do you recommend for my 150 watt speakers? 200 watts ok?

-Matnick
bertro54's Avatar bertro54 10:18 AM 03-10-2008
Just bought Onkyo PR-SC885P at ggvideo.com. If anybody is looking to buy 1 they said they had extra units in stock. I looked at as many places as I could find on the internet and they seemed to have the best price $1299.
They said I will receive an e-mail tonight with the tracking number. I have read other peoples comments about this Co. and I hope they are true.
pepar's Avatar pepar 10:41 AM 03-10-2008
Quote:
Originally Posted by matnick2127 View Post

No I didn't know that. What wattage do you recommend for my 150 watt speakers? 200 watts ok?

-Matnick

I recommend that you buy as big an amp as you can afford. And then listen closely for distortion if you listen at high levels so you know the capabilities of your system.

It is usually an amplifier "clipping" - the tops (and bottoms) of the waveform are flattened - that sends, basically, direct current to the voice coils causing heat and blown drivers. A higher power amp will be more comfortable at that same listening level, supply clean power to the speakers with no bad effects.
pepar's Avatar pepar 10:41 AM 03-10-2008
Quote:
Originally Posted by bertro54 View Post

Just bought Onkyo PR-SC885P at ggvideo.com. If anybody is looking to buy 1 they said they had extra units in stock. I looked at as many places as I could find on the internet and they seemed to have the best price $1299.
They said I will receive an e-mail tonight with the tracking number. I have read other peoples comments about this Co. and I hope they are true.

Please, no prices in posts. Pls edit to remove.
matnick2127's Avatar matnick2127 12:02 PM 03-10-2008
Quote:
Originally Posted by pepar View Post

I recommend that you buy as big an amp as you can afford. And then listen closely for distortion if you listen at high levels so you know the capabilities of your system.

It is usually an amplifier "clipping" - the tops (and bottoms) of the waveform are flattened - that sends, basically, direct current to the voice coils causing heat and blown drivers. A higher power amp will be more comfortable at that same listening level, supply clean power to the speakers with no bad effects.

I looked at the ADCOM and looks very good. Just one question. Where do you connect the sub? I looked at the owners manual and there is no mention about the sub.
-Matnick
craig john's Avatar craig john 12:20 PM 03-10-2008
Quote:
Originally Posted by matnick2127 View Post

I looked at the ADCOM and looks very good. Just one question. Where do you connect the sub? I looked at the owners manual and there is no mention about the sub.
-Matnick

The sub should have it's own built-in amp. Plug it into the "Subwoofer/LFE Out" on the pre/pro.

Craig

Edit: The Adcom 7700 is a nice amp, but it's only 5 channels @ 200 wpc. The 7807 is 7 channels @ 300 wpc, but it's 3 x your budget. The Emotiva MPS-2 I recommended earlier is 7 channels @ 200 wpc. This will provide about as much amplifier power as your speakers can handle for about half the price of the Adcom.

Craig
matnick2127's Avatar matnick2127 12:38 PM 03-10-2008
Quote:
Originally Posted by craig john View Post

The sub should have it's own built-in amp. Plug it into the "Subwoofer/LFE Out" on the pre/pro.

Craig

Edit: The Adcom 7700 is a nice amp, but it's only 5 channels @ 200 wpc. The 7807 is 7 channels @ 300 wpc, but it's 3 x your budget. The Emotiva MPS-2 I recommended earlier is 7 channels @ 200 wpc. This will provide about as much amplifier power as your speakers can handle for about half the price of the Adcom.

Craig

Craig,
I noticed that ADCOM has a 7channel 200 wpc (7707). Not sure of the price yet.
I looked at the rear of the 885 for the subwoofer/LFE connection and looks like it requires a special connector. I spent a lot of money for my 25' subwoofer cable.

-Matnick
fyzziks's Avatar fyzziks 12:42 PM 03-10-2008
Quote:
Originally Posted by matnick2127 View Post

I looked at the rear of the 885 for the subwoofer/LFE connection and looks like it requires a special connector. I spent a lot of money for my 25' subwoofer cable.

It's a standard RCA or XLR connector.
pepar's Avatar pepar 01:03 PM 03-10-2008
Quote:
Originally Posted by matnick2127 View Post

Craig,
I noticed that ADCOM has a 7channel 200 wpc (7707). Not sure of the price yet.
I looked at the rear of the 885 for the subwoofer/LFE connection and looks like it requires a special connector. I spent a lot of money for my 25' subwoofer cable.

-Matnick

There are both XLR outputs for long, balanced runs and RCA phono-type outputs nearby amplification.

What is your "25' subwoofer cable?"
matnick2127's Avatar matnick2127 01:04 PM 03-10-2008
Quote:
Originally Posted by pepar View Post

There are both XLR outputs for long, balanced runs and RCA phono-type outputs nearby amplification.

Any difference between the two?

-Matnick
pepar's Avatar pepar 01:14 PM 03-10-2008
Quote:
Originally Posted by matnick2127 View Post

Any difference between the two?

-Matnick

Oh yeah. Balanced is more expensive and only provides a benefit for l-o-n-g runs in that it is resistant to picking up noise from RFI/EMI. I would define l-o-n-g as anything longer than 10'. Otherwise, the single-ended (RCA phono) outputs are used.
matnick2127's Avatar matnick2127 01:24 PM 03-10-2008
Quote:
Originally Posted by pepar View Post

Oh yeah. Balanced is more expensive and only provides a benefit for l-o-n-g runs in that it is resistant to picking up noise from RFI/EMI. I would define l-o-n-g as anything longer than 10'. Otherwise, the single-ended (RCA phono) outputs are used.

Well I have a max of 6'. Should I still go with balanced or for this short distance it won't make a difference?

-Matnick
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