Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

RockStarNick

New member
Hey guys. Just spent the better part of my Friday evening, once again, tinkering around in the ol' man cave. This time, I performed four, count em, FOUR magnet swaps in my Seymour Duncan Custom Shop Brobucker pickup.

The following is, of course, my opinion, but I tried to keep my findings as objective as possible.

WHY DID I SWAP MAGNETS?
Besides being a complete OCD nutcase who can't leave well enough alone? Well, after playing my Tele alot lately, as well as trying out other people's guitars with lower output PAF varieties, I came back to the Brobucker, and it seemed a bit too powerful. It's a STRONG pickup - almost as loud as a ceramic SH5 Custom. I guess lately, I was feeling that the top end was a bit rolled back, the mids and upper mids were a little too present, and the low end was a bit too big.

In other words, the Brobucker in it's stock form does EXACTLY what it's supposed to do. :lmao:

But of course, I wanted somethihng different. The stock Brobucker doesn't really chime. And the huge mids make getting a useable clean sound kinda tough. I was hoping that one of these mag swaps would tweak it to make it a touch more "vintage".

I'm pretty demanding when it comes to bridge humbuckers.
• I want a vintage PAF flavor, with vintage PAF construction and materials
• I want it with more output
• I want some chime on top, but not a treble spike like a 59
• I want singing mids, but I still want good cleans
• I want a big low end, without tubbyness
• I want touch sensativity, but with punch and muscle and fast attack

In other words: like many of you, I'm searching for that elusive PERFECT pickup that doesn't seem to exist. hahah.

Here's my findings.

STOCK DEGAUSSED ALNICO 5:
• Very powerful mids and upper mids
• Rolled back treble
• Big big bass.
Amazing, powerful singing lead tone. Great for solos. Sounds downright HUGE. Big big crunchy power chords. Makes the thinnest amp sound fat.
Best suited for gain; cleans were a little too punchy and immediate with no apparent sparkle or bloom. The powerful output almost makes it difficult to match up with a PAF flavored neck bucker - makes the neck pickup seem underpowered.

REGULAR ALNICO 5:
• Just about the same output level as DGA5
• Much more treble
• Perceived reduced mids, but it's PROBABLY the same amount
• Same big, tight bass.
I wasn't loving the regular A5 in the Brobucker. I guess for the same reason I don't love regular A5 in pretty much ANY bridge pickup. The highs are just a bit too present for me - in an almost distracting way. Cleans were good, but not particularly 3D.

ALNICO II:
• even less treble than the regular brobucker.
• big big mids, but a softer flavor than the stock brobucker
• oddly enough, there seemed to be some sort of high-end presence "sheen" going on in the background. I guess that's the famous AII "sizzle."
• lots of sag
Well, the Alnico II Brobucker was cool, for sure. It was the LOWEST output of all my swaps today, without a doubt. It definitely lost some of it's balls with the AII - it was sweet, and singing, but in a very saggy kind of way. Not saggy bad - but more like, a less immediate response than the A5. Seemed to have a bloom to the notes, almost as if there was a compressor on. The initial attack would be soft, and then the notes would swell in, in a subtle way.

UNORIENTED A5 (UOA5)
• Less output than Degaussed A5, but a little more than A2.
• More treble than Degaussed A5; less than full strength
• Nice tight bottom end, but not as BIG as the standard brobucker
• Nice singing mids, but more transparent than the standard degaussed A5
Well, out of all the swaps today, this was what I was looking for all along. The UOA5 definitely reduced output - noticeably. But, in such a powerful pickup like the Brobucker, it just seemed to work. It was easier to adjust the pickup closer to the strings, and still balance up with a neck 59AII. The UOA5 didn't necessarily add the compression and sag that it did with the AII, but it did seem to add a bit more touch sensativity to the pickup. Which I really, really liked. Cleans now had chime, but not in the typical Alnico V treble-spike kind of way. The bottom end was still big, but definitely not as HUGE as the standard degaussed A5 Brobucker. Mids were still big, but again, not huge. The pickup still solos and sings great, but with a bit more of a transparent voice.

The only way I can describe the swap from Degaussed A5 to UOA5 is that it took the Brobucker, and made it more vintage sounding, without sacrificing too much muscle and balls.

Bottom line: If the standard Brobucker feels like it's permanently on 12 for you, and you want a dash of low output PAF mixed in with all that muscle, try the UOA5 - it'll make it sound like it's on 10, bring back some chime, and add in a bit more touch sensativity. It adds back in a bit of that '59 snort and snarl.
 
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Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

Thanks :)

Makes me sad Addiction Fx is not shipping worldwide anymore. My UOA5s are missing, and I think it's just what my bridge pup needs.

Edit - Just found my last 2, and some A8s! Woohoo!
 
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Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

Excellent post! Great comparisons. Like you, I've found the UOA5 to be a very good bridge magnet, filling the gap between A2's and A5's. A8's can do this in some situations, but you don't always want all that output.

You put into words what I've been trying to say about some A2 bridge PU's: that 'high end presence sheen in the background. I called it 'ribbony', my way of saying 'bright but still too rounded on top.'
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

Excellent post! Great comparisons. Like you, I've found the UOA5 to be a very good bridge magnet, filling the gap between A2's and A5's. A8's can do this in some situations, but you don't always want all that output.

You put into words what I've been trying to say about some A2 bridge PU's: that 'high end presence sheen in the background. I called it 'ribbony', my way of saying 'bright but still too rounded on top.'

Yep - and the more and more I swap mags, the more that I almost think that the "treble" people hear in Alnico V's are actually upper upper mids.
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

The UOA5 is an excellent bridge magnet and it'll mix very well with A3, A4 and A2 in the neck with every low-to-high 7K wind.

Great for classic rock and electric blues tones and excellent Jazz tones in semihollows and specially in big, 20-fretter Jazz boxes like the L-5 CES, Byrdland and/or ES-175, as the dynamics are second to none... a very welcomed feature that's unique to this kind of magnet.

I've worked with the guitar player of a Led Zep tribute band, and we've found the "so close it's scary" p'up set that nailed JP's tone in "Presence" to perfection: an UOA5 modded Seth Lover set. Meaning UOA5 mags in BOTH p'ups.

HTH,
 
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Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

Nice review Bro. One of these days I'll have to give the UOA5 mag a try as I am not a fan of the treble content/lack of juicy mids of normal A5 either. I like the cleans, but the gain sounds are not my thing. I've been relying on aggressive A2 pups, and I am not unhappy, but I like to try new stuff.
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

The UOA5 is a great bridge mag, 1 thing I have found and due to my buddy having a higher output pup is putting a lesser powered mag brings out the best in the pup. He has a GFS VEH pup, tried an A8 in it and it sounded good but was too over the top, he had tried an A2 in it and it really opened it up, I have an UOA5 RC in the tool box he is going to try in it, I really think that will be the ticket.
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

Thanks :)

Makes me sad Addiction Fx is not shipping worldwide anymore. My UOA5s are missing, and I think it's just what my bridge pup needs.

Edit - Just found my last 2, and some A8s! Woohoo!

I have spoken to them & they will be Shipping internationally with DHL
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

Excellent post Nick, I may just get a couple of UOA5s . Thanks for the detailed info!
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

What about A4... get back in the man cave!

Hahah. From what I've read, A4 would be more even across the spectrum than DGA5.

IMO, the last thing the Brobucker needs is more evenness or balance - it almost needs a bit of a scoop in the mids.
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

I like these threads because unless you do swaps back to back, you really can't recall the differences accurately.

I'm fine with the stock Brobucker, but I really like what the UORC A5 does to a Custom 5.
It pulls everything back a notch.

Interesting comment above about UORC A5 in Seth Lovers. I can imagine it sweetening them up a bit.
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

Has anyone tried a UOA5 in an SM-3 bridge pickup? That could be really interesting...
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

I am really liking what the RCA5 has done for PGn. the best way I can put it is MORE, bass slight increase, mids about the same, and more top end clarity. Output is raised abit as well. Matches up with my BBQ in the bridge quite nicely.

Didn't care for the coil split sound much, was even worse as an A2. So I wired up a push pull to series/parallel the neck only.

I am liking this alot currently. Since my first ever pickup swap, this is the longest I have left things well enough alone.
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

Thanks for the info here guys :)

Has anyone here compared a UOA5 to an A3? I mean there'd probably be a massive difference in output, and probably more bass on the A5, but ITO attack, overall brightness?
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

I am really liking what the RCA5 has done for PGn. the best way I can put it is MORE, bass slight increase, mids about the same, and more top end clarity. Output is raised abit as well. Matches up with my BBQ in the bridge quite nicely.

+1. To me, an UOA5 is like a 'product-improved' A2. Fixes some of the shortcomings, but keeps the dynamics.
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

Has anyone here compared a UOA5 to an A3? I mean there'd probably be a massive difference in output, and probably more bass on the A5, but ITO attack, overall brightness?

A3's are bright, like a regular A5 with less output and low end. These are great for clarity and definition in the neck slot. Neither has an abundance of dynamics.

UOA5's are darker (darker than an A8), and have a lot of A2-type dynamics. A warmer, meatier magnet.

To brighten a PGN, I've used an A3, although an UOA5 works too. In a PGB, a UOA5 would be ideal for getting more cut and bite, but an A3 would be too thin and bright.
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

I see! Thanks. Have A2 in the bridge and an A3 in the neck. Want to increase the output and add some attack to the bridge, I think an UOA5 is just what the doc ordered. Also want to swap the A3 in my neck pup for an A2, but worried it might make it too dark in comparison to the bridge. Will do things one step at a time :)
 
Re: Brobucker Magnet Swaps: Complete Report. UOA5, A2, DGA5, A5

I'm not surprised by this at all, the UOA5 is a miracle magnet.
 
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