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MI AUDIO BLUES PRO
· Amazing 'plug-and-play'
low/medium gain overdrive.
· 4 external control
o Gain - from the lightest breakup to serious crunch, with more grit and
attitude than the Blue Boy Deluxe.
o Tone - for taming the top end
o Volume - plenty of volume for overdriving a tube amp
o Toggle switch to unleash the subtle 'fuzz mode'.
· The classic JRC4558D IC.
· Double the gain of a typical TS type of pedal.
· Improved bass response for less bass loss, a typical problem with TS
type pedals.
· DC plug (boss style) for use with external power supply or internal 9V
battery with up to 25V headroom available.
· Asymmetrical clipping.
· Professionally powder-coated and silk-screened enclosure, measuring
only 4.3" * 2.2"
· Heavy Duty 3PDT footswitch with true bypass
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The Idea
The Blues Pro has an interesting story. When I first
started work on the Blue Boy overdrive, I worked on the
design until I got to a point where I was happy with it.
So I went out and had a whole bunch of PCBs made up.
What I didn't count on was changing my mind... which I
did. I was then not able to use the PCBs. So, what I
decided to try to recoup some of the money I'd pumped
into the PCBs by making these pedals up, putting them in
a bare aluminium case, and selling them at cost. I
called this pedal the 'Blues Prototype'. What I didn't
count on was just how popular this pedal would be. They
are still on the second hand market today, in most cases
getting considerably more than what was paid for them.
The Blues Prototype is so popular that I get at least a
few emails per week asking about the pedal, and the
availability of the pedal. So I've taken the plunge, and
there you have it... the Blues Prototype is now
reincarnated as the Blues Pro.
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The Features
So why release the Blues Pro if I already have its
bigger brother, the Blue Boy? Well, despite the shared
lineage, the two pedals ended up being quite different.
The Blues Pro’s no nonsense circuitry is very
'immediate'. There are no internal trimmers, so you get
a very easy to use pedal, with the classic configuration
of Gain, Tone and Volume. The Blues Pro is a
little bit more compressed, which give the pedal a bit
of extra punch. It also sounds throatier than the Blue
Boy in high gain settings. The tone control is very
intuitive to use (it's much closer to the Blue Boy's
brightness control). It makes a great compliment to the
Blue Boy, but its true soul-mate is the Crunch Box.
The two pedals are a natural extension of each other.
In recent times the Blues Pro has had a simple mod
added, where you are able to completely change the feel
of the Blues Pro, from a cool little OD to a rather mean
sounding fuzz just by flicking the toggle switch at the
top of the pedal. Obviously it is up to each individual
whether they wish to engage this cool mod but for us
this is quite an interesting mod, because the character
of the pedal changes quite dramatically. The other
interesting thing about this fuzz mod is the fact that
the tone control becomes more of a 'sponge' control.
With the tone all the way up, the Blues Pro sounds like
a louder version of the original. As you turn the tone
control down, the response time of the Blues Pro
increases. This sounds particularly cool on chords. With
the tone control all the way down, the tone takes a
second or two to settle. |
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