richie_jones Posted June 3, 2017 Author Share Posted June 3, 2017 Link to comment Share on other sites More sharing options...
richie_jones Posted June 3, 2017 Author Share Posted June 3, 2017 Link to comment Share on other sites More sharing options...
bodbod Posted June 4, 2017 Share Posted June 4, 2017 Hi, You may want to check what AC power adapter you are using because your choice is key. Indeed, to make it simple and not too technical there are 2 kinds of AC adaptors : - Low Frequency (linear regulator) : the good old ones which are bigger, heavier and which produce more heat (that's the one you want) : no noise. - Switched-mode power supply : the new ones, compact and light weight with low heat, (usually for laptops and other modern devices) : lots of noise (not good for sound systems but very nice for other types of pcb) I had this issue with my cabinet but i sorted this out with an old linear regulator from an old appliance : http://www.hyperspin-fe.com/forums/topic/14955-arcave-machine/ good luck ! Link to comment Share on other sites More sharing options...
richie_jones Posted June 4, 2017 Author Share Posted June 4, 2017 Do you think this would eliminate the noise before starting up..All noise has gone now except the horrendous noise before powering pc up and comes back again after powering down.It's interesting as it doesn't do it if the 3.5mm jack is removed from the pc end... Link to comment Share on other sites More sharing options...
bodbod Posted June 4, 2017 Share Posted June 4, 2017 What kind of power adapter are you using? Linear or swichted mode power? If you already have a linear one, i would then check your wiring and ensure you have a good ground. When you plug the mini jack you have the noise right? Then you may have a bad ground with the main poweradapter of the computer. Are the main power supply and power adapter of the ampli on the same socket? Just check and try, you can easily find such linear adapters for free. Link to comment Share on other sites More sharing options...
bodbod Posted June 4, 2017 Share Posted June 4, 2017 Best is to try the sound system with another source like an ipod, if you have noise You know where to focus on. Link to comment Share on other sites More sharing options...
mikekim Posted June 4, 2017 Share Posted June 4, 2017 22 hours ago, richie_jones said: 22 quid mike!!!! That one looks better though... ha. ha... they saw you coming £11.99 on Arcade world Link to comment Share on other sites More sharing options...
richie_jones Posted June 4, 2017 Author Share Posted June 4, 2017 ha. ha... they saw you coming £11.99 on Arcade world Yeah that's the one must of been 12 quid then..What you think of the lepy one?https://www.arcadeworlduk.com/products/lepy-40-watt-2-1-stereo-sound-amplifier-with-super-bass.html Link to comment Share on other sites More sharing options...
mikekim Posted June 4, 2017 Share Posted June 4, 2017 never really tried it.. read a review of the smsl one when i was looking and have used them ever since... Link to comment Share on other sites More sharing options...
richie_jones Posted June 4, 2017 Author Share Posted June 4, 2017 Did the smsl one come with a power supply Link to comment Share on other sites More sharing options...
richie_jones Posted June 4, 2017 Author Share Posted June 4, 2017 Right haha. I've just bought one off eBay 31 quid see how that goeshttp://www.ebay.co.uk/itm/292132372097 Link to comment Share on other sites More sharing options...
richie_jones Posted June 4, 2017 Author Share Posted June 4, 2017 Right guys second question..My two main speakers are car speakers so I'm presuming there 8 ohm..they sound great on there own with the amp I've got..I bought some 16 ohm samsung tv speakers that fit perfectly down the side of my monitor as they measure 35mmx210mm.Trouble is it all sounds pretty good when I connect them all together but it definitely effects the quality of the sound coming from the original car speakers. It's like the bass no longer pulses and almost gives the whole setup a fuzzy tinny sound. It's difficult to notice but I'm wondering if anybody can explain what the difference is between an 8 ohm and 16 ohm etc etc and why you can't hook them up together. And if possible how would you connect speakers of different ohms up... Link to comment Share on other sites More sharing options...
mafiafan123 Posted June 4, 2017 Share Posted June 4, 2017 I had a similar one and then switched to this one I went through 3 though as build quality on these amps suck unfortunately Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
mikekim Posted June 4, 2017 Share Posted June 4, 2017 5 hours ago, richie_jones said: Did the smsl one come with a power supply yes it does.. Link to comment Share on other sites More sharing options...
mikekim Posted June 4, 2017 Share Posted June 4, 2017 1 hour ago, richie_jones said: Right guys second question.. My two main speakers are car speakers so I'm presuming there 8 ohm..they sound great on there own with the amp I've got.. I bought some 16 ohm samsung tv speakers that fit perfectly down the side of my monitor as they measure 35mmx210mm. Trouble is it all sounds pretty good when I connect them all together but it definitely effects the quality of the sound coming from the original car speakers. It's like the bass no longer pulses and almost gives the whole setup a fuzzy tinny sound. It's difficult to notice but I'm wondering if anybody can explain what the difference is between an 8 ohm and 16 ohm etc etc and why you can't hook them up together. And if possible how would you connect speakers of different ohms up... the volume discrepancy between the 2 speakers will be a problem. The 8 ohm speaker will take most of the power and the 16 ohm speaker will be much quieter. In general it's not a good idea. you could probably get it to work if you ran 2x 16ohm in series with an 8ohm in parallel. (per channel) or you could just get some decent full range speakers... just google speaker impedance and read the multiple threads on the subject... Link to comment Share on other sites More sharing options...
richie_jones Posted June 8, 2017 Author Share Posted June 8, 2017 never really tried it.. read a review of the smsl one when i was looking and have used them ever since...Wow Mike what can I say. SMSL amp is amazing. Sound is crisp extremely loud full of bass and zero interference..It's a 100% improvement on the cheap crap I'd bought... Link to comment Share on other sites More sharing options...
gigapig Posted June 8, 2017 Share Posted June 8, 2017 Those SMSL amps look pretty tidy, thanks for the info chaps and glad your all sorted out now Mr Jones. Link to comment Share on other sites More sharing options...
mikekim Posted June 11, 2017 Share Posted June 11, 2017 On 6/8/2017 at 4:26 PM, richie_jones said: Wow Mike what can I say. SMSL amp is amazing. Sound is crisp extremely loud full of bass and zero interference.. It's a 100% improvement on the cheap crap I'd bought... glad to have been of some help... Link to comment Share on other sites More sharing options...
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