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-   -   Opinions on Sure-electronics - Want to build a system (http://www.diyaudio.com/forums/class-d/223508-opinions-sure-electronics-want-build-system.html)

Polaczek 13th November 2012 06:30 PM

Opinions on Sure-electronics - Want to build a system
 
I scoured the forum a bit and I haven't really seen people complaining too much about sure electronics. I'd really want some feedback from people who have been around.

I want to build a small system to power my speakers (obvious), and was wondering if using their boards as well as a meanwell power supply is a good choice.
Parts:
Amp - 2 X 100Watt @4Ω TK2050 Class D Audio Amplifier Board Link
PS - 15V 7A 100W AC/DC Switching Power Supply Link

I chose the 15V 7A PS because my speakers are rated for 50W peak at 4ohm and I don't want to blow.
I chose the TK2050 because I hear it's pretty nice.

Do you guys have any alternate sources that are comparable in price but possible better quality, or am I doing alright?

I can do mod as required: PS filtering, capacitor swaps, thermal paste on the heatsink, fan relocation, etc. I have a decent electronics background so I am confident in playing around with this stuff (plus I have the motivation to play with it too).

Thanks!

Martin

Soldermizer 14th November 2012 05:40 AM

Here is a recent post on Sure amps. Perhaps do a search for others.
http://www.diyaudio.com/forums/class...amplifier.html
I am kind of the anti-christ around here: the extent of my "DIY" this year has been to buy Behringer amps (NU3000) and run them without the fan (completely removed). Works fine. Minimal DIY required. :)

Polaczek 15th November 2012 02:09 PM

Thanks for the post. I wanna be a little more DIY. I have searched through the forum but nothing really concrete about people being overly excited. I did find that through Partsexpress people have reviewed these boards and find that people are generally very please with them (Linky!).

They even review the 2X250W Board. I know it's only one review but many people can start filling those reviews out to give a better knowledge base of how they feel.

Soldermizer 15th November 2012 11:58 PM

I am an Ebay lurker. Months ago, I posted here something like "Behringer NU3000 cheaper than DIY?" apparently not always. For example, you can buy a NU1000 for around $170 (USA). Comparable DIY stuff from Sure seems to be about 1/2 that cost. Of course, with Behringer you get a warranty. And a box. But no DIY fun.

ScreamingLordByron 16th November 2012 10:26 AM

Some measurements on the sure class d amps:

Trevor Marshall - Class D Audio Amplifier Design - TDA7498 Output filters

QA400 Measurements on SURE 2x50W TDA7492 Class D Amplifier - QuantAsylum Home Page

Some on DIY have also noted the output stage might not be optimal (see first link above).

Polaczek 16th November 2012 03:17 PM

ScreamingLordByron, those are two beautiful articles and exactly what I would want to see and eventually do! Thank you for digging this stuff up!

Bare 16th November 2012 04:28 PM

Quote:

Originally Posted by Polaczek (Post 3240292)

I chose the TK2050 because I hear it's pretty nice.
Do you guys have any alternate sources that are comparable in price but possible better quality, or am I doing alright?

Martin

Hunt up Topping Amps... A bit more $$.
But better made and include decent PSU's
Also need little if any modding.
So final costs are ..far... below your current path.


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