paul_5 Posted May 7, 2014 Share Posted May 7, 2014 Just done the 'Aural Enhancer' mod on my SM400 and it's (not surprisingly) a very different beast. It's a lot darker and louder - both plus points for me and the sort of stuff I play. Took longer to take everything apart than it did to do the soldering bit. Quote Link to comment Share on other sites More sharing options...
winterfire666 Posted May 7, 2014 Share Posted May 7, 2014 cool, great amps those, ill be lookin forward to hearin it Quote Link to comment Share on other sites More sharing options...
nugget Posted May 7, 2014 Share Posted May 7, 2014 I did that on my SWR Studio 220, it's amazing Love the amp now Quote Link to comment Share on other sites More sharing options...
BassBod Posted May 7, 2014 Share Posted May 7, 2014 Must look into this one...is that the Talkbass thread? Quote Link to comment Share on other sites More sharing options...
paul_5 Posted May 7, 2014 Author Share Posted May 7, 2014 yup, no extra parts needed, in fact, you end up with a spare capacitor - much like MFI furniture used to do... Quote Link to comment Share on other sites More sharing options...
BassBod Posted May 7, 2014 Share Posted May 7, 2014 One of mine needs to go in for a hum check sometime...might try and get that added at the same time. And get the DI sorted for phantom power protection. Quote Link to comment Share on other sites More sharing options...
paul_5 Posted May 11, 2014 Author Share Posted May 11, 2014 After a 4 hour rehearsal today I can confirm that my SM400 is now über loud - last rehearsal it was pretty much maxed out to keep up with a drummer and 2 guitarists, today it didn't go above half. Quote Link to comment Share on other sites More sharing options...
JPJ Posted May 11, 2014 Share Posted May 11, 2014 As a confirmed SWR nut, please enlighten me as to the source of this mod please Quote Link to comment Share on other sites More sharing options...
paul_5 Posted May 11, 2014 Author Share Posted May 11, 2014 It's dead simple; remove two capacitors and put one back in a different place... The frequency response looks like this (before and after) [URL=http://s1221.photobucket.com/user/paul_510/media/swrmod_zpsfda11699.jpg.html][IMG]http://i1221.photobucket.com/albums/dd471/paul_510/swrmod_zpsfda11699.jpg[/IMG][/URL] And this is how it looks in the real world. Before: [URL=http://s1221.photobucket.com/user/paul_510/media/DSC01182_zps39cef70d.jpg.html][IMG]http://i1221.photobucket.com/albums/dd471/paul_510/DSC01182_zps39cef70d.jpg[/IMG][/URL] After: [URL=http://s1221.photobucket.com/user/paul_510/media/DSC01184_zpsed05383d.jpg.html][IMG]http://i1221.photobucket.com/albums/dd471/paul_510/DSC01184_zpsed05383d.jpg[/IMG][/URL] [color=#141414][font=verdana, geneva, lucida,]1. remove the 0.1 uF capacitor[/font][/color] [color=#141414][font=verdana, geneva, lucida,]2. Use it to replace the 0.001 uF capacitor[/font][/color] Quote Link to comment Share on other sites More sharing options...
Heathy Posted February 25, 2017 Share Posted February 25, 2017 I make no apologies if this is a stupid question as I know virtually nothing about electronics: Before I get to work on my Studio 220, is this something that anyone could do, or are any tools required? Quote Link to comment Share on other sites More sharing options...
DangerDan Posted February 25, 2017 Share Posted February 25, 2017 Sweet. Wish i knew enough about stuff to do this to my SM900. Quote Link to comment Share on other sites More sharing options...
rmorris Posted February 27, 2017 Share Posted February 27, 2017 [quote name='Heathy' timestamp='1488039423' post='3245314'] I make no apologies if this is a stupid question as I know virtually nothing about electronics: Before I get to work on my Studio 220, is this something that anyone could do, or are any tools required? [/quote] Soldering Iron (Medium size tip) Solder (Should use Lead free solder but note you will need quite powerful soldering iron to make a good job of it) Long Nose Pliers / Tweezers (so you can keep your pinkies away from the hot bits !) Solder Wick Braid to clean up any solder splashes Solder Pump would be handy to clear the holes but should be okay to use the solder wick for this Be sure to get the joint hot enough to melt the solder and let it flow to avoid 'dry' joints Quote Link to comment Share on other sites More sharing options...
Heathy Posted February 27, 2017 Share Posted February 27, 2017 Thanks. Probably best that I get a grown up to do it for me. Quote Link to comment Share on other sites More sharing options...
Owen Posted March 1, 2017 Share Posted March 1, 2017 This makes me fancy picking up a cheap and cheerful 2nd hand SWR. Quote Link to comment Share on other sites More sharing options...
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