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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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29th Oct 2017, 5:36 pm | #1 |
Retired Dormant Member
Join Date: Oct 2017
Location: Anderlecht, Belgium.
Posts: 2
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Sony STR 434 is way too loud!
Hi there,
I am trying to set up an old SONY STR 434L with two Samsung PS7500 speaker (8ohm/15 watt). It sounds good but it's way too loud, I can only use the first stop of the volume control, and there are like 40! Any idea what I could be doing wrong? I am new to this forum and to vintage audio... sorry if this is not the right place to ask. Cheers from Brussels, Belgium. R. Vanhoest |
29th Oct 2017, 9:33 pm | #2 |
Dekatron
Join Date: Sep 2015
Location: Southwold, Suffolk, UK.
Posts: 8,302
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Re: Sony STR 434 is way too loud!
Well these Samsungs are just low quality, low power handling speakers. The wrong kind to use with your 40 watt amplifier. You need a good pair of speakers that is more compatible with your Sony.
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Edward. |
29th Oct 2017, 10:36 pm | #3 |
Octode
Join Date: Aug 2003
Location: Welwyn Garden City, Herts. UK.
Posts: 1,906
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Re: Sony STR 434 is way too loud!
What are you plugging into it and into which sockets?
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30th Oct 2017, 1:54 am | #4 |
Heptode
Join Date: Dec 2016
Location: Sheffield, South Yorkshire, UK.
Posts: 539
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Re: Sony STR 434 is way too loud!
If you did turn it up loud you would blow those speakers apart. Possibly damaging the output devices of the amp too. Always a possibility if someone else uses the amp and don't know not to turn it up.
You need to attach speakers of at least 40 watts, very quickly. |
30th Oct 2017, 1:10 pm | #5 |
Octode
Join Date: Nov 2013
Location: Penrith, Cumbria, UK
Posts: 1,993
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Re: Sony STR 434 is way too loud!
Peter has the right question.
Don't confuse "too much volume" with power handling capability of loudspeakers which is a contentious subject anyway. There is more to mere Sound pressure levels than power handling. Like the sensitivity of the speakers, and I doubt very much that's the issue here. So to the OP, can we have a photo of what you are plugging in to the amp, and into which input sockets. A picture , as the adage goes, paints a thousand words. I am wondering if the OP has perhaps plugged say a high output Headphone output of a portable device into the "Phono" i.e. the mag cartridge input of the amp? That would have a sensitivity around the 3mV or less mark and bunging half a volt or more into it would give a 100x overload and a very loud distorted output. A. Last edited by bikerhifinut; 30th Oct 2017 at 1:25 pm. Reason: Tpynig error |
30th Oct 2017, 9:13 pm | #6 |
Retired Dormant Member
Join Date: Oct 2017
Location: Anderlecht, Belgium.
Posts: 2
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Re: Sony STR 434 is way too loud!
Wow, thanks, that was quick!
Here are some updates, Ill try to add a picture later on. SPEAKERS: I do know my speakers are crappy, so I tried it with a pair of Technics SB 3130, (80 Watts) and it's still way too loud. INPUT: I am not even pluging anything right now, I use the built-in tuner. A few weeks ago, I did try plugging an ipod on the TAPE IN sockets, and still, super loud. I could play a bit by lowering the volume of the ipod almost to the min, this way I was able to go up a bit on the main volume, but still nowhere near a quarter of the maximum. Cheers, R. |
1st Nov 2017, 11:58 am | #7 |
Rest in Peace
Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 7,306
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Re: Sony STR 434 is way too loud!
IMHO this is not a speaker problem. I once ran a Sharp SG500 Music centre (maximum output 80 Watts per Channel into 4 ohms), using a pair of Realistic (Tandy) 10 Watt Dual Cone speakers without any problems, volume wise, since, at normal listening levels in a quiet room, the peak output from any amplfier is unlikely to be more than about 1 watt per channel, and the average power somewhat less. It seems to me that there is a fault within the STR434. The fact that you have the same problems with two different pairs of speakers seems to bear that out.
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1st Nov 2017, 1:06 pm | #8 |
Dekatron
Join Date: Jun 2013
Location: East Sussex, UK.
Posts: 3,315
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Re: Sony STR 434 is way too loud!
Could be a faulty volume control lacking an earthy connection.
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2nd Nov 2017, 8:01 pm | #9 |
Nonode
Join Date: Jan 2008
Location: Milton Keynes, Bucks. UK.
Posts: 2,552
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Re: Sony STR 434 is way too loud!
Or, if at some time, the volume control (perhaps a tapped one) has been replaced by a non tapped one ?
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When I die, please don't let my Wife sell my collection for the amount I told her I paid for it! |
2nd Nov 2017, 8:20 pm | #10 |
Nonode
Join Date: Jan 2008
Location: Milton Keynes, Bucks. UK.
Posts: 2,552
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Re: Sony STR 434 is way too loud!
Vanhoest
If you need it, a free service manual & supplement is available from "hifiengine". You only have to register and then you can access them f.o.c. as PDF files. link here: https://www.hifiengine.com/manual_li...str-434l.shtml Regards, Antoine Hodeige
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When I die, please don't let my Wife sell my collection for the amount I told her I paid for it! Last edited by camtechman; 2nd Nov 2017 at 8:25 pm. |