| Author |
Sony STR_DB895 |
birhahk
Rank: Sony Fan
Joined: Oct 16, 2005
Posts: 8
From: Wolverhampton
 |  Posted: 2011-05-31 14:06
Dear All,
I have the Sony AV Amp STR-DB895 amp, I've recently noticed that I have to put the volume upto -40.00db before I hear anything, I have to increase the volume upto -30.00db before I get a good loud output, do you there is a problem with the amp, or could it be the speakers?
regards
Bobby
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Maxxwire
Moderator
Premium Member
Rank: Sony Adept
Joined: Aug 29, 2002
Posts: 25735
From: Portland, Oregon - USA
 | Posted: 2011-05-31 15:30
birhahk- Since output volume varies with the strength of the input signal what signal source(s) are you using when this lowered volume occurs with your STR DE995 Receiver?
~Maxx~
-----------------
A Satisfied Sony Fan Since 1974!
The OCCC Furu-Charged Sony DB 930
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mykyll2727
Rank: Sony Pro
Joined: Apr 30, 2004
Posts: 4171
From: Las Vegas
 | Posted: 2011-05-31 15:50
birhahk_I concur with Maxx's statement and echo his question. But I have a few of more. What is the distance that you're making your listening assessments at? At -30db what do you mean by "a good loud output"? What is the impedance and sensitivity of the speakers your using? Because depending on your listening distance they could be a factor._mykl
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AaronB
Rank: Sonyphile
Joined: Nov 26, 2002
Posts: 622
From: Ottawa, Canada
 | Posted: 2011-06-01 09:23
-30 dB is a perfectly resonable volume setting for "loud" output.
Note that each 10 dB will (by definition) result a tenfold increase in power. So 0 dB 1000 x the power output of -30 dB. Your amp will clip and your speakers will become very unhappy sometime before you reach 0 dB though.
I need to run my 5400ES at -20 dB to get reasonable, "living room" levels out of it.
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birhahk
Rank: Sony Fan
Joined: Oct 16, 2005
Posts: 8
From: Wolverhampton
| Posted: 2011-06-01 12:40
thank you for your replies, at the moment I am listening to a portable minidisc player using phono leads connected into the back of the amp. The minidisc player has been set to LINEOUT.
The Speakers which I use are the Sony SS-CSD1 with a rated impedance of 6 ohms. I sit about 2 metres away from the amp when the amp is at -30 dB. Why dont I hear anything at day 90, 80 or 70dB? Is this normal
birhahk
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Maxxwire
Moderator
Premium Member
Rank: Sony Adept
Joined: Aug 29, 2002
Posts: 25735
From: Portland, Oregon - USA
| Posted: 2011-06-01 18:30
It could be that the Analog line level output of your portable minidisc player is somewhat less than the 2 volt standard and is causing relatively low volumes from your Sony Receiver as a result.
~Maxx~
 Sony H-9 MaxxPix
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mykyll2727
Rank: Sony Pro
Joined: Apr 30, 2004
Posts: 4171
From: Las Vegas
| Posted: 2011-06-01 20:47
birhahk_Sorry I should've been more specific as I meant your listening distance from the speakers not the amp. I did a quick search on your speakers and found them to be 2way bookshelves. My search didn't turn up any info on sensitivity though. Still I agree with the others. I think -30db for loud is acceptable and as Maxx said the line level output from the source could be a contributor as well.
-90,-80,-70dBs? Refer to AaronBs post on power output and remember that at those levels you're going the other way from -30. I.e. progressively less power. You shouldn't really expect to hear much if anything at all at those listening levels depending on how far you are from the speakers. Too little power output to the speakers._mykl
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