The Filter Circuit is very simple and offers three options, Mellow, Normal and Bright. We purposely
avoided using such acronyms such as 4X12 closed back, etc. to describe these settings since we feel there are
no two speakers or speaker cabinets that sound the same, therefore how can there be a standard for a 4X12
sound and so on? That being said, certain associations will be made for the purpose of describing these
settings and their possible similarities with types of speaker cabinets. Another important factor to remember
is that the upper mid range is very crucial to the simulation of a guitar amplifier sound and no conventional
equalizer can produce this tonal quality.
The Mellow setting would produce a speaker sound much like that of the older models of American
speakers that tend to deliver a warmer, softer sound. The Normal setting would have a speaker sound, with
linear response characteristics, similar to that of an open back 2X12 cabinet. Finally, The Bright setting gives
you the more aggressive sound, the kind usually relating to the British made speakers.
EQ Tips: Boosting lower frequencies (80-100 HZ) at the mixing console will give you a fatter sound
similar to that of the 4X12 cabinet. Additionally, by adding upper midrange frequencies (2-4 k-HZ) and
cutting the lower frequencies you would help produce the thinner open 2X10 sound and somewhere in
between will get you to the 2X12 sound. Remember these tips would be used to enhance the filter settings of
the PDI-09, trying to accomplish the same thing by using a conventional DI box, would sound terrible.
As we previously stated, the PDI-09 is more than just an alternative to a microphone. Suggestions such as
hooking up your distortion pedal or pedal board direct using the PDI-09 can lead to exciting new directions.
Additional new possibilities present themselves in using a lower wattage amplifier cranked to the max for
distortion and then plugging it in to a larger amplifier using the PDI-09. You have just turned tonally cool,
smaller amplifier in to a larger stage compatible amplifier. To accomplish this setup you must have a specially
wired cable and connect your amplifier as follows. First connect the smaller amplifiers speaker output to the
¼” input of the PDI-09 using a speaker cable. Then connect your speaker or appropriate load box to the thru
jack using an additional speaker cable. Now buy or make a shielded cable that is ¼” mono male (guitar plug)
wired to female XLR/Cannon. The XLR/Cannon end must be wired pin 2 hot, or to the tip of the ¼” plug
and pin 3 wired to the shield or sleeve of the ¼” plug. Note: Pin 1 is left open or unused on the XLR/Cannon
end. This unbalances the output of the PDI-09 and allows you to plug directly in to a larger amplifiers input
jack. Another option would be to drive rack effects at line level and then use your favorite stereo power
amplifier to power your speaker cabinets. You have just turned your amplifier in to a pre-amplifier.
Have fun experimenting with your PDI-09 “The Junction”!
Germany: Martin Schmitz, Musikelektronik, Siemensstr 14, D61267 Neu-Anspach, Germany
Telephone: 011-6081-43206, Fax: 011-6081-43252
USA: Tech-Star Sales & Services, 750 Cowan St., Nashville, TN 37207
Phone: 615-242-2925, Fax: 615-242-9528
www.palmerdirect.com
