The MXL V67g Greyhound Mod
The V67 is a great platform to mod because the front
end of this mic is a copy of the Neumann U87 (vintage) circuit. JJ Audio conducted extensive
tests on this microphone and implemented changes to the circuit that
improve the sound of this microphone. We set out to make this microphone have a sound that was similar to the U87(vintage) circuit. The original U87 circuit was warmer and is the sound of countless hit records from genres that span from classic rock to hip hop.
We removed the 2SA1015 circuit and the 2SK170bl and
replaced the 2SK170bl with a higher gain FET that is commonly used in a
modded U87 microphone. This FET has about 7 to 8 db more gain and works
well with the MXL V67 circuit. The circuit is then modded to act like
the U87. The capacitors are Wima for the film caps, Sanyo electrolytics
and Polystyrene capacitors. A zener diode is added to stabilize the
voltage.
The stock capsule is very similar to the K87 capsule
and responds the same way to the filtering that is in the U87 circuit.
The result is a mic that is very close in sound to the U87. As well there are additional upgrades that can be made to the sound of the microphone via the larger components, namely the capsule and transformer.
We contact Jensen Transformers and they are custom winding a special transformer for this microphone called the JJ GRY transformer which is larger than the U87 transformer and offers a much smoother sounding result along with more headroom.
As well our new line of European assembled and skinned JJT67 capsules offer a substantial upgrade to the sound of this microphone by offering a significant improvement in low end response, along with warm low mids, smooth midrange response and exquisite yet elegant top end. Once the JJT67(S) (single pattern version) capsule is installed, the Greyhound's sound is world class and excels in situations where one would normally use the U87.
We also offer a multi-pattern version of this microphone called the Pitbull which incorporates all of the upgrades offered in the Greyhound platform along with a low end roll off switch. The standard Pitbull utilizes the ADK TT capsule, our U87 circuit and the Jensen JJ GRY transformer. The upgrade to the Pitbull is the JJT67 (multipattern version) capsule which offers the same advantages that are available to the Greyhound with the JJT67(S) upgrade.
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