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The UltraSound Ultra PDI Preamp DI is a great direct box and a full-featured preamp. The Ultra PDI lets you dial in clear, natural sound. Routes to a stage PA from a balanced XLR output. A parallel 1/4" out sends signal to your stage amp. The effects loop features a 1/4" send and return rather than a TRS system requiring a Y cord. Tone controls include active bass and treble EQ, mid-dip shape control, and a notch filter. Operates on 48V phantom power or battery (not included).
UltraSound Ultra PDI Preamp DI Features:
INSTRUMENT INPUT: This input is designed for all passive and active type pickup signals. When a plug is inserted, the 9V battery is switched on.
INSTRUMENT OUTPUT: This is a "parallel" jack which can be used to send the "guitar/instrument signal" to an external tuner, guitar amp or other device which can use an instrument level signal.
EFX LOOP: This is a real world "EFX
LOOP". In an effort to save room, most of our competition uses a TRS jack
(tip, ring, sleeve) and Y cable type system. The DI+ is provided with two
1/4" jacks, one for "SEND" and one for "RETURN". Since the EFX LOOP interrupts
the signal path it can be used as an insert point for a volume pedal, compressor,
or tuner, if the tuner is equipped with a bypass switch. (Try that with
one of our competitors units)
BASS: This is an "Active" control. The BASS control adjusts the amount
of cut or boost in the low frequency (150HZ) range.
POWER: This LED indicates the DI PLUS is ready to operate. The POWER LED will illuminate when:
A. A plug is inserted into the INPUT jack and there is a fresh battery installed in the DI PLUS.
B. A 9VDC adapter (Wall Wart) is plugged into the power jack. (9VDC Regulated Power Supply - 500mA) (2.1MM DC Power Plug, Center +)
C. There is 48V phantom power on the XLR cable plugged into the XLR OUT jack. (The 48V LED and the POWER LED will both be illuminated.)
XLR OUT: Plug a standard XLR cable from your PA or recording console into this low impedance balanced output. Use the "XLR LEVEL" control to set the output level which matches up best with your PA or recording gear and gives you the least amount of noise. If your board provides 48V phantom power on the XLR cables, the DI Plus will run from this and save the battery. It is suggested that you keep a battery in the unit as a backup when using the phantom power. If the phantom power drops, the DI Plus will automatically switch to battery power.
LINE OUT: This is a standard unbalanced line level output signal. Use the "LINE LEVEL" control to adjust the signal level on this jack. This output can be used simultaneously with the XLR OUT jack for some creative signal routing. Plug a standard instrument cable from this output to a stage monitor amp or unbalanced Mic input on a mixer.
by Michael Horowitz