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Thomann TSA 4-1300

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RoadRunnersDust View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RoadRunnersDust Quote  Post ReplyReply Direct Link To This Post Topic: Thomann TSA 4-1300
    Posted: 07 April 2022 at 10:15am
That’s a shame :/

In fairness to Thomann, it’s an amplifier that they rebadged so I doubt they would have access to the schematics themselves even if they wanted them. I can’t recall which Far East vendor they came from but someone (I think on here) identified them once, possibly the same outfit that build the PL3000 for them.

Thomann *might* have had access to board-level spares but I would imagine their “repair” scheme consisted of sending back shipments of failed amplifiers for rework then using the reconditioned amplifiers or new units as warranty replacements. That seems to be a fairly common practice for Far East OEM’d equipment. (At least it’s better than recycling them into the landfill…) 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote boots-hifi Quote  Post ReplyReply Direct Link To This Post Posted: 07 April 2022 at 9:33am
Unfortunately it's now no more than a door stop. My Dad spent a lot of time trying to fix the amp, but without any detailed information from Thomanns 'service' department or schematics detailing components it became un viable. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RoadRunnersDust Quote  Post ReplyReply Direct Link To This Post Posted: 11 March 2022 at 6:36pm
Did anything re: component fix information ever get explained?

I agree with Jon, that would be a really useful resource given the discontinued nature of the 4-1300
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JonB67 Quote  Post ReplyReply Direct Link To This Post Posted: 20 February 2021 at 7:52am
Dont suppose your dad could enlighten us on what he found and what he replaced? Any pics? 

Makes this a useful resource for people having the same problem as you.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 20 February 2021 at 7:49am
Yes - like the proposal that the manufacturers of white goods be made responsible for recycling their products when they fail.

What is also needed is some sort of control over programmed obsolescence as well. One of my printers stopped working a while ago, because it was programmed to do so, not because of any fault. Absolutely ridiculous.  Ouch Dead Disapprove



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Post Options Post Options   Thanks (0) Thanks(0)   Quote boots-hifi Quote  Post ReplyReply Direct Link To This Post Posted: 20 February 2021 at 12:13am
Originally posted by JonB67 JonB67 wrote:

Right to repair or guaranteed support for a fixed term or repairability ratings or some mix of the lot needs to come into force. The current "its tough, buy a new one" is not sustainable,  responsible or necessary really. Hopefully it will drive new economics models which will have knock on effects for design.

Wishful thinking, but lets hope...

100% agree with this. For a company that should hopefully be sustainable and support climate change throwing a product away regardless of cost for a component worth pennies available from RS is ethically wrong. Why shouldn't products be maintained, as in previous years? Its all about greed and profiteering. To put things into perspective, it's a 4 channel £450 amplifier that serves a purpose. The fact that I've had 3 new amplifiers since 2017 from thomann (1 new, 2 new replacements) under very light use to describe as best doesn't bode well for the product or design. The fact the company will be prepared to send a brand new replacement amplifier out including shipping rather than replace a component in the pence which probably has become a known fault is ridiculous. As mentioned thomann can not be worried about the already copied design being copied. Its just the drive for greed and wealth that over rules any degree of rationality. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JonB67 Quote  Post ReplyReply Direct Link To This Post Posted: 19 February 2021 at 7:26pm
Right to repair or guaranteed support for a fixed term or repairability ratings or some mix of the lot needs to come into force. The current "its tough, buy a new one" is not sustainable,  responsible or necessary really. Hopefully it will drive new economics models which will have knock on effects for design.

Wishful thinking, but lets hope...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote aziz Quote  Post ReplyReply Direct Link To This Post Posted: 19 February 2021 at 5:20pm
Had a mackie profx8 in for repair recently,had it in before for a minor repair so I knew it’s a bit of a pain to work on but with nothing else happening,I said I’d would give it a shot.

One gain pot physically broken and two other dirty as well as a couple of diodes gone,

Went to order new pots from loud technologies and found that they don’t stock them anymore which is shit as the mixer is still a current product.

None of the standard component companies had a matching replacement so a long wait until Ali express came to the rescue 

Companies these days don’t make it easy 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 19 February 2021 at 1:46pm
Originally posted by studio45 studio45 wrote:

Probably because if they released their schematics to non-NDA covered personnel, various patent lawyers would be VERY interested!


Clap

LOL…. This exactly the conclusion I came to as to why they never released the schematics!!


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Post Options Post Options   Thanks (0) Thanks(0)   Quote studio45 Quote  Post ReplyReply Direct Link To This Post Posted: 19 February 2021 at 1:35pm
Probably because if they released their schematics to non-NDA covered personnel, various patent lawyers would be VERY interested!

Your Dad is a top don by the way. Care to elaborate on what he found wrong and fixed? I bet it's a common fault, might even be the one that kills them all?
Studio45 - Box Builder Commotion Soundsystem -Mobile PA
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 19 February 2021 at 1:35pm
Here ya go - amp porn!!   LOL

The new cheapo crap can't compare to these!!  Smile





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Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 19 February 2021 at 1:24pm
Yes - the throwaway philosophy/culture is BS, I hate it too.

Most of my amps are also old school - mainly Crest as well - 7001 and 8001. They just keep giving!  LOL Clap LOL


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