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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2760

United Kingdom 
'Hiss' from new amped speakers
I've fitted some 6x9s in the rear of my 110, with an amp (both halfords)

The 6x9s only (other speakers are not amped) hiss all the time a little. It's most noticeable when the music is off but power on (amp stays on for 10-15 sec after IGN is switched off)

Anyone reccomend a common fix or likely culprit? Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #255903 3rd Aug 2013 8:38am
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20441

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How have you routed your cabling? And how loud is the "hiss" ? Thumbs Up $W33T $0U7H3RN $UG4R
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Post #255904 3rd Aug 2013 8:40am
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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2760

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custom90steve wrote:
How have you routed your cabling? And how loud is the "hiss" ? Thumbs Up


the cable routing isnt particularly tidy now you speak of it - a couple of joins and runs up B pillar, past alpine lights and down rear window trim to speakers. Could joins etc be a problem? Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #255909 3rd Aug 2013 8:55am
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
'Joins' can indeed be a source of interference. They need to be well-made, preferrably soldered and subsequently insulated. Thumbs Up If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #255920 3rd Aug 2013 9:29am
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
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As Mal say's above. If there is any power cables and signal cables mixed together that isn't good either try and separate them as best you can. Thumbs Up $W33T $0U7H3RN $UG4R
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Post #255945 3rd Aug 2013 11:44am
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barbel jim



Member Since: 12 Dec 2012
Location: Northants
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United Kingdom 2005 Defender 90 Td5 HT Tonga Green
New 'short' earth to the amp usually sorts, and is where I would start. Thumbs Up Thumbs Up
Post #255948 3rd Aug 2013 12:30pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
Short earth on the amp is a very good idea but will not help if your problem is on the speaker output side of it. Do check both areas mentioned. If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #255973 3rd Aug 2013 3:56pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
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I think it's most likely to do with Amp to speaker rather than primary power but could be wrong. $W33T $0U7H3RN $UG4R
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Post #256042 3rd Aug 2013 7:55pm
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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2760

United Kingdom 
Thanks for the advice everyone! Will look into it Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #256060 3rd Aug 2013 8:41pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
We use at work a Public Address sytem on the vessels with four TQA amplifiers supplying over 120 speakers with 6 auxilliary inputs plus a cascade system with descending 'priority' starting at the Captain's microphone . Trying to find the source of interference on that can be a proverbial nightmare. 9 times out of 10 it'll be a speaker dragging or degrading the system down.
If you still have your old speakers disconnect your fitted speakers and try connecting one of the previously removed directly to the back of the amp if convenient, this will give a good pointer perhaps where your problem lies. If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #256102 3rd Aug 2013 10:29pm
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