Help replacing surround speaker

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robjg63

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#248599 1-Apr-2019 22:06

So I noticed that one of the front speakers on my Denon Home theatre (of around 9 years age) has stopped working.

Have moved the speakers around and the fault follows the speaker.

So its a 5.1 system with 4 x identical Denon SC-A56 speakers for the 'corners' and its one of these that has croaked.

On the back of the speaker it says:

Impedance 6 Ohms

Maximum Input 30W (IEC) 100W (Peak).

I cannot find any second hand units, so figure I am going to have to replace at least 2 of them - I guess you would want to 'balance' them.

The specs for the Amp say :

Front:

75W + 75W (8 ohms, 20 Hz - 20khz)

110W + 110W (6 ohms)

I am not terribly clued up on audio but I know they dont have their own power source so will be 'passive' speakers.

Its not worth spending too much and I found surplustronics have a few - I thought this looked like a possibility:

https://www.surplustronics.co.nz/products/5477-stereo-background-speakers-2-way-525-inch

Am I ok to go with 8 ohms , 35W RMS and Peak of 70W ?

Any practical advice much appreciated

Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler

richms

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#2209145 1-Apr-2019 22:38

Those speakers you have linked to are horrible.

I thought I would get some for the garage and I just went back to some logitech computer speakers because they are that bad.

They are the sort of thing you would have honking away in the background of a cafe - hence the name.

Also if you're speakers and reciever came as a set there is a good chance that its equalized for the supplied speakers and will sound trash on anything else you connect to it.

Richard rich.ms

labs23

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#2209154 1-Apr-2019 23:28

Not the one on your link; go for passive bookshelf speakers with wooden enclosure.

Match the 8 ohms impedance, then put the new pair at the front.

SATTV

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#2209187 2-Apr-2019 07:43

If you are in Auckland you should try axent audio in Portage Road, New Lynn.

The repair speakers and have other speakers for sale.

John

I know enough to be dangerous

robjg63

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#2209189 2-Apr-2019 08:03

Thanks for the replies above.
Wasn't keen on spending too much as the amp is now over 9 years old and they don't seem to last too long these days.
Looks like the speaker units are glued together as far as I can see.
Will have to think about what to do I guess.

Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler

jonathan18

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#2209208 2-Apr-2019 08:39

I'd recommend considering something s/h off TM or another source (the post two above this mentions a place). Given you seem to be keen to get something at the 'bargain' end of the market, in all seriousness for that sort of money the only speakers you'll get that are of an acceptable quality will be s/h.

I also agree with an earlier post about buying a decent pair of fronts and retain the others for rears; you'll not get matching audio across the front three speakers, but that's a small price to pay for superior sound. Or see what's available with a full suite of HT speakers - so many people seem to be making the transition to sound bars that I imagine there are a decent number of such setups for sale.

robjg63

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#2209269 2-Apr-2019 09:32

jonathan18:

I'd recommend considering something s/h off TM or another source (the post two above this mentions a place). Given you seem to be keen to get something at the 'bargain' end of the market, in all seriousness for that sort of money the only speakers you'll get that are of an acceptable quality will be s/h.

I also agree with an earlier post about buying a decent pair of fronts and retain the others for rears; you'll not get matching audio across the front three speakers, but that's a small price to pay for superior sound. Or see what's available with a full suite of HT speakers - so many people seem to be making the transition to sound bars that I imagine there are a decent number of such setups for sale.

Thanks for the comments.

Have added a watch to trademe - Would be quite happy with a s/h unit(s).

As the whole package cost <$2k in 2010 I cant see the point in buying expensive replacements when the amp is of this age. If I was replacing the whole system I would be looking for a package including speakers anyway. So dont want to start assembling a group of 'custom' components that might end up being orphans.

Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler

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robjg63

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#2209681 2-Apr-2019 18:55

I am thinking this might be a better option as a replacement:
https://www.jbhifi.co.nz/headphones-speakers-audio/onkyo/onkyo-sks-4800-centre-surround-speaker-package-black/355937/

6 ohms like the other speakers, doesn't have quite the same peak ability on the surround, but apart from that it looks like it should work.

Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler

sqishy

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#2209765 2-Apr-2019 20:28

I assume you have eliminated a faulty cable or does it have those clips on the speaker to take the two wires, if so often the faulty speaker has just a dry joint inside on the inside of the clip. If you open it wriggle the leads inside the speaker it can be fixed then buy a cheap soldering iron from jaycar and some solder and you can fix yourself.

robjg63

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#2209775 2-Apr-2019 20:41

I actually managed to open the speaker up without wrecking it.
It has the 2 spring loaded holes in the back.
The rest of the speaker contains 2 x small identical speakers effectively connected in parallel.
All joints looked fine. All crimped connectors and no solder.

I tried the wires from the amp onto each speaker individually and nothing. Seems like both speakers might have expired.
Have verified it's the speaker that's the problem and not the cables.

Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler