Super Eagle Update From PRS Website

Cool story!I think JM is a fantastic guitarplayer.The guitar looks great.Interesting electronics.
 
Very curious about what the preamp really does. And I like the idea of a longer scale length; I have pretty big hands, but also just the tone of a string with more tension on it can be very different. Bass notes more like a piano tone might be a nice thing.

But I think I'm done spending money for now...
 
Very curious about what the preamp really does.

Its main purpose in JM's guitar appears to be to compensate for the signal loss inherent in using multiple pedals and long cable runs. It's easy enough nowadays to accomplish that on the pedalboard itself (guys like Pete Cornish have been building that capability into pedalboards for years) but for some people it's easier/more desirable to have that control inside the guitar.

And hey, Jerry Garcia had that kind of circuit in his guitar, so if you're gonna play in Jerry's band, it's probably the right thing to do!
 
Interesting! So it's just a buffering amp? With the optional treble boost? I didn't know JG had one of those.
 
Interesting! So it's just a buffering amp? With the optional treble boost? I didn't know JG had one of those.

The sonic effect of the buffer is an apparent treble boost, mainly because with it in the circuit you don't have the capacitance-induced high end loss that you have in a typical long (or even medium) cable run with a typical electric guitar's output (passive circuit & high impedance pickups). Sounds to me like the same thing as what's in my Scott Walker guitars, and yeah, JG had that on at least some of his guitars. But I don't know for a fact what the PRS circuit is.

There are a few different permutations of the buffer/preamp thing as well. On a couple of my guitars the preamp is separate from the buffer. I like this for lower-output pickups because the preamp can add some gain but the buffer can be disabled, for example, when I want to use a vintage wah or fuzz. Those sound kinda weird with a buffer in front of them. Another of my guitars has the John Cutler "Unity Gain Preamp/buffer" which sounds like what JM requested in the PRS and is what JG used. That doesn't provide any gain boost but as I mentioned above there's a noticeable increase in the high end, although again it's not so much an increase as a lack of decrease. ;)
 
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But this unit has a separate switch for turning on the treble boost. Only works when the preamp is on. So I'm betting it is actually a high shelf EQ built into the preamp.

I have a Rocket Boost pedal that buffers the signal even when the circuit is off. I did find it increased clarity when I was using a lot of pedal effects, but I started getting more effects with true bypass switches, and I didn't really find it all that great after that. Except the boost part!
 
But this unit has a separate switch for turning on the treble boost. Only works when the preamp is on. So I'm betting it is actually a high shelf EQ built into the preamp.

I have a Rocket Boost pedal that buffers the signal even when the circuit is off. I did find it increased clarity when I was using a lot of pedal effects, but I started getting more effects with true bypass switches, and I didn't really find it all that great after that. Except the boost part!

I use a Suhr buffer right after the wah on my pedalboard, and I find it keeps the signal very crisp with no loss of high end, though even in the 10 foot cable I normally run to the pedalboard, there's going to be a small amount of HF rolloff.

But based on the description of the circuit in the Mayer Eagle, I think this is more of what you're talking about here, Grieswig.

I'm not 100% certain, but I don't think Kingsley's quite correct on this one.
 
I'm not 100% certain, but I don't think Kingsley's quite correct on this one.

I don't have any idea what circuit(s) are in the JM PRS. I was just describing similar circuits that I'm familiar with from my own (non-PRS) guitars. Entirely possible that JM would want a separate treble boost, just as (with certain pickups) I want an onboard preamp that gives me some extra gain.

I'd definitely like to take the JM PRS for a spin. I like that PRS are exploring some new territory with this one.
 
I like that PRS are exploring some new territory with this one.

I think that the maker of the circuit is a high end boutique studio equipment manufacturer, who makes things like $8K A/D converters, etc.

My guess is that whatever it is, this circuit was very carefully thought through and executed as a "cost no object" thing. I'm with you, I'd love to try it.
 
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