Cleaning up the mud on a 490R

zizyphus

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Hey!

I thought I'd share a quick, 5 cent mod that turned my muddy sounding 490R into a pickup whose tones I absolutely love. This is definitely not a new trick, and I'm not smart enough (or old enough) to be the first to do it, but it was very successful for me, so I thought I'd share. TLDR: add a capacitor in series to roll off some of the bass.

I picked up a 490R/498T set cheaply second hand from someone who'd taken them out of an SG. I have a cheap Jackson Randy Rhoads style offset V that plays phenomenally, and that I find super fun. It's also the easiest guitar for me to mod, because the control cavity is incredibly easy to access. At any rate, I threw this set in to see what would happen.

You should know that this is an unusually bright sounding guitar. I typically use 1M pots, but this is one of the only guitars I own where I use 500k instead, including in my strat and tele!

At any rate, the 498T bridge sounds GREAT for high gain in this guitar. I know that the 498T is often criticized for being too bright and brittle, but remember, this is a pointy flying V, so this is NOT a bluesy/jazzy axe. Its brightness allows it to keep its clarity despite all the full, fat gain I throw on it. But I digress,..

When I tried the 490R, it sounded dark - lots of bass + low mids. I love a mid-focused lead tone that sings and sounds dark and buttery, but the 490R was downright muddy. It was impossible to EQ my amp so that the 490R stayed clear without making the 498T shrill.

A while ago, I'd picked up a box of 700 Hilitchi caps of varying values from Amazon.com for about $12 shipped. I play with pots and caps a lot to dial in my tone on different guitars. In the past, I've turned tone controls into bass cut knobs, but as this guitar only has 1 volume and 1 tone, I would have had to have given up the only treble cut pot in order to have a bass cut pot, so that was a no go.

When thinking about it, I realized that since I could never really see why I would want that much low end mud on the 490R, I wouldn't really need to have the bass cut feature on a pot. I wanted it always on. With that in mind, I soldered a capacitor in series with the hot wire of the pickup, between the hot wire and the pickup selector.

BAM!

I've still got mids galore in the neck position, and it sounds warm and silky smooth for leads (I love that Alnico II sponginess), but by cutting off some of the bass, it's crystal clear instead of being a mudfest.

I originally used a 0.082 mF cap, which wasn't quite enough cut. I then switch to 0.068 mF, which sounds great, but may be slightly too much bass cutting for me. Unfortunately, I don't have any caps whose values are in between these two, so I'll probably end up soldering two caps in parallel to get a value in between them. So the experiment goes on. However, the initial results have been so successful that I thought I should share.

Good luck!
 

Deftone

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Hey!

I thought I'd share a quick, 5 cent mod that turned my muddy sounding 490R into a pickup whose tones I absolutely love. This is definitely not a new trick, and I'm not smart enough (or old enough) to be the first to do it, but it was very successful for me, so I thought I'd share. TLDR: add a capacitor in series to roll off some of the bass.

I picked up a 490R/498T set cheaply second hand from someone who'd taken them out of an SG. I have a cheap Jackson Randy Rhoads style offset V that plays phenomenally, and that I find super fun. It's also the easiest guitar for me to mod, because the control cavity is incredibly easy to access. At any rate, I threw this set in to see what would happen.

You should know that this is an unusually bright sounding guitar. I typically use 1M pots, but this is one of the only guitars I own where I use 500k instead, including in my strat and tele!

At any rate, the 498T bridge sounds GREAT for high gain in this guitar. I know that the 498T is often criticized for being too bright and brittle, but remember, this is a pointy flying V, so this is NOT a bluesy/jazzy axe. Its brightness allows it to keep its clarity despite all the full, fat gain I throw on it. But I digress,..

When I tried the 490R, it sounded dark - lots of bass + low mids. I love a mid-focused lead tone that sings and sounds dark and buttery, but the 490R was downright muddy. It was impossible to EQ my amp so that the 490R stayed clear without making the 498T shrill.

A while ago, I'd picked up a box of 700 Hilitchi caps of varying values from Amazon.com for about $12 shipped. I play with pots and caps a lot to dial in my tone on different guitars. In the past, I've turned tone controls into bass cut knobs, but as this guitar only has 1 volume and 1 tone, I would have had to have given up the only treble cut pot in order to have a bass cut pot, so that was a no go.

When thinking about it, I realized that since I could never really see why I would want that much low end mud on the 490R, I wouldn't really need to have the bass cut feature on a pot. I wanted it always on. With that in mind, I soldered a capacitor in series with the hot wire of the pickup, between the hot wire and the pickup selector.

BAM!

I've still got mids galore in the neck position, and it sounds warm and silky smooth for leads (I love that Alnico II sponginess), but by cutting off some of the bass, it's crystal clear instead of being a mudfest.

I originally used a 0.082 mF cap, which wasn't quite enough cut. I then switch to 0.068 mF, which sounds great, but may be slightly too much bass cutting for me. Unfortunately, I don't have any caps whose values are in between these two, so I'll probably end up soldering two caps in parallel to get a value in between them. So the experiment goes on. However, the initial results have been so successful that I thought I should share.

Good luck!

Pics! What model RR V is it? Floyd?
 

zizyphus

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voila!

Its a JS32 V.

The stock hardware was all black, which I replaced. The tuners are Hipshot, and the bridge is Gotoh. The bridge in particular was a pleasant surprise. It was ~$25, and its zinc – nothing fancy or anything – but its clearly very solid, and I was very happy about it for the price.

I'm not a trem guy for the most part. My strats are blocked. I do have an RG with a Floyd Special for when I want to whammy and pretend like I'm Steve Vai, but otherwise I like hardtail.
 

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RetropM

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My favorite mod for a 490R is putting a shot A5 magnet into it to turn it into a T-Top, not need for 1k pots or fancy capacitors then! ;)
 

HorseNonsense

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UOA5 is what prefer, having tried stock, A3, A4, and A5. Gives it a bit more 'pop' while keeping the sea of overtones.

I don't know if they can really substitute for a T-Top, which was wound 7.4-7.5 and had its resonance in the highs. 490 was presumably developed to keep the bass in the neck, which I like, since I stick with the neck position most of the time. I keep the A2 in the bridge though, and that's not too bad.

Wolfetone's 'Grey Wolf' is a more accurate T-Top clone.
 

RetropM

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UOA5 is what prefer, having tried stock, A3, A4, and A5. Gives it a bit more 'pop' while keeping the sea of overtones.

I don't know if they can really substitute for a T-Top, which was wound 7.4-7.5 and had its resonance in the highs. 490 was presumably developed to keep the bass in the neck, which I like, since I stick with the neck position most of the time. I keep the A2 in the bridge though, and that's not too bad.

Wolfetone's 'Grey Wolf' is a more accurate T-Top clone.

By all accounts, a 490R pickup is almost identical to a T-Top, the biggest difference is the magnet and wax potting. The wind,wire, and output are identical between the two. There are numerous discussions here on the topic. A few years back there was actually a lot of folks looking for used 490s on Ebay once this info came out. It really sounds almost exactly like a T-Top when you do the magnet swap for a short A5.

 
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LtKojak

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a 490R wind is almost identical to a T-Top
Oh, man; this myth must be the hardest to die of the whole music industry... specially when the T-Top and the 490R are polar opposites. The short A5 modded 490R actually sounds BETTER than the T-Top when put in the bridge position, but in the neck there's simply no comparison. Night and day.

Unless you put lots of gain and play power chords, where it doesn't really matter what you use.
 

RetropM

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Oh, man; this myth must be the hardest to die of the whole music industry... specially when the T-Top and the 490R are polar opposites. The short A5 modded 490R actually sounds BETTER than the T-Top when put in the bridge position, but in the neck there's simply no comparison. Night and day.

Unless you put lots of gain and play power chords, where it doesn't really matter what you use.

I will defer to your expertise here although my personal experience is that my modded 490R sounded almost exactly like my two late-model T-Tops. That being said, you have a much larger sample base and a lot more experience with pickups than I do so I will absolutely take your word on this.
 
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David Garner

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UOA5 is what prefer, having tried stock, A3, A4, and A5. Gives it a bit more 'pop' while keeping the sea of overtones.

I don't know if they can really substitute for a T-Top, which was wound 7.4-7.5 and had its resonance in the highs. 490 was presumably developed to keep the bass in the neck, which I like, since I stick with the neck position most of the time. I keep the A2 in the bridge though, and that's not too bad.

Wolfetone's 'Grey Wolf' is a more accurate T-Top clone.

UOA5 turned mine into a superb pickup, and another one did the same for its 498t sibling. Huge fan of the unoriented A5 in this set.
 

dc007

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The short A5 modded 490R actually sounds BETTER than the T-Top when put in the bridge position, but in the neck there's simply no comparison. Night and day.
Good to know since I have one laying around here.
 

Robert Parker

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UOA5 turned mine into a superb pickup, and another one did the same for its 498t sibling. Huge fan of the unoriented A5 in this set.
I put a UOA5 in place of the stock A2 in my Zhangbucker Duanebucker (wound to 7.5k). It was originally the neck pickup in my LP, but I was experimenting while that guitar is decommissioned for repairs. I put it with the A5 in the bridge of a 25" scale LP, and it sounds amazing - very chimey and sparkly but with body to it.
 

Snakum

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I guess I'm weird. I actually fell in love with the 490R/490T in my Tributes. Never spent so much time on a neck p'up. I've had 498s in an Explorer and other Gibbys and loved it for classic rock. But no experience with 490s. For a variety of music I liked the 490 combo (at least with the Tributes) better than anything I've played on a solid-body Gibson outside of Mojotone PAF clones. I just lowered the neck a bit and it never got muddy thru Mesa F50s and a Peavey 'red stripe' Bandit.
 

garybaldy

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I guess I'm weird. I actually fell in love with the 490R/490T in my Tributes. Never spent so much time on a neck p'up. I've had 498s in an Explorer and other Gibbys and loved it for classic rock. But no experience with 490s. For a variety of music I liked the 490 combo (at least with the Tributes) better than anything I've played on a solid-body Gibson outside of Mojotone PAF clones. I just lowered the neck a bit and it never got muddy thru Mesa F50s and a Peavey 'red stripe' Bandit.
The 490s are gorgeous in my SGJ 2013 Model
 

Mark_the_Knife

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Oh, man; this myth must be the hardest to die of the whole music industry... specially when the T-Top and the 490R are polar opposites. The short A5 modded 490R actually sounds BETTER than the T-Top when put in the bridge position, but in the neck there's simply no comparison. Night and day.

What he says. The other thing we need to get right is the units of capacitance. I believe we should be in the microfarad (uF) and not millifarad (mF) range. Using 0.068 uF is BIG and it means there is too much signal heading into the preamp, or the drive level is too high. Or, the guitar is suffering from a multitude of sins.
 

charlie chitlins

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Hey!

I thought I'd share a quick, 5 cent mod that turned my muddy sounding 490R into a pickup whose tones I absolutely love. This is definitely not a new trick, and I'm not smart enough (or old enough) to be the first to do it, but it was very successful for me, so I thought I'd share. TLDR: add a capacitor in series to roll off some of the bass.

I picked up a 490R/498T set cheaply second hand from someone who'd taken them out of an SG. I have a cheap Jackson Randy Rhoads style offset V that plays phenomenally, and that I find super fun. It's also the easiest guitar for me to mod, because the control cavity is incredibly easy to access. At any rate, I threw this set in to see what would happen.

You should know that this is an unusually bright sounding guitar. I typically use 1M pots, but this is one of the only guitars I own where I use 500k instead, including in my strat and tele!

At any rate, the 498T bridge sounds GREAT for high gain in this guitar. I know that the 498T is often criticized for being too bright and brittle, but remember, this is a pointy flying V, so this is NOT a bluesy/jazzy axe. Its brightness allows it to keep its clarity despite all the full, fat gain I throw on it. But I digress,..

When I tried the 490R, it sounded dark - lots of bass + low mids. I love a mid-focused lead tone that sings and sounds dark and buttery, but the 490R was downright muddy. It was impossible to EQ my amp so that the 490R stayed clear without making the 498T shrill.

A while ago, I'd picked up a box of 700 Hilitchi caps of varying values from Amazon.com for about $12 shipped. I play with pots and caps a lot to dial in my tone on different guitars. In the past, I've turned tone controls into bass cut knobs, but as this guitar only has 1 volume and 1 tone, I would have had to have given up the only treble cut pot in order to have a bass cut pot, so that was a no go.

When thinking about it, I realized that since I could never really see why I would want that much low end mud on the 490R, I wouldn't really need to have the bass cut feature on a pot. I wanted it always on. With that in mind, I soldered a capacitor in series with the hot wire of the pickup, between the hot wire and the pickup selector.

BAM!

I've still got mids galore in the neck position, and it sounds warm and silky smooth for leads (I love that Alnico II sponginess), but by cutting off some of the bass, it's crystal clear instead of being a mudfest.

I originally used a 0.082 mF cap, which wasn't quite enough cut. I then switch to 0.068 mF, which sounds great, but may be slightly too much bass cutting for me. Unfortunately, I don't have any caps whose values are in between these two, so I'll probably end up soldering two caps in parallel to get a value in between them. So the experiment goes on. However, the initial results have been so successful that I thought I should share.

Good luck!
 

charlie chitlins

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The Roy Buchanan mod.
A couple folks who had briefly gotten their hands on his guitar couldn't figure out why the ohm meter read OPEN when the pickup was working.
 

copperheadroad

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They may sound good ,use you ears NOT your eyes . just saying the LPJ with the plastic emg type of pickups are quite different .double slug coils with brass plates .
imageproxy.jpg
 

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