Piezo pickups for upright8/31/2023 Construction: 14 gauge steel chassis and outer shell, baked enamel finish.Power: 48V phantom - proprietary digital switching.XLR configuration: AES standard (pin-2 hot).Audio circuit type: Proprietary analog circuit with low-noise FET op-amp.48V phantom powered, does not require batteries.Variable low-cut filter to control bass resonance.Adjustable load for piezo and magnetic pickups.Optimized for orchestral instruments on a live stage.But as I mentioned, it's a very flexible bit of kit that can also be used on electric basses, guitars, mandolins, violins, keyboards. It would be a VERY handy box to carry around in one's gig bag if one was a touring bassist it could be a very good equalizing factor when you don't know what sort of bass or pickup you might end up with at tonight's gig. The unit is only powerable by Phantom Power through the XLR cord, so it's use is specific to the sort of playing situation I mention above. Other problem solvers include that (previously mentioned) 180 degree polarity reverse (phase) switch to tame hot spots on stage that can cause feedback, and a ground lift switch to help eliminate hum and buzz caused by ground loops. Should an extra loud source such as an active bass or digital keyboard be encountered, simply activate the -15dB pad to rectify the situation. This provides ample dynamic range for acoustic instruments. To maximize signal handling and reduce distortion, the PZ-DI incorporates an innovative DC to DC switching supply that converts the phantom power to deliver extra headroom. It also has a high-cut filter, which can often cut down on that "clacky-ness" that over-enhances the string sounds of plucking (and scratchiness of bowing.) But it does have some very useful tone-improving features, as well as a phase switch for feedback fighting.įor one, it has an adjustable high-pass (low cut) filter, which can allow you to dial out subsonic "flab" in your signal, tightening up your bottom end and reducing rumble. Is it a preamp? Well, it's got the all-important impedance matching, but doesn't have the fancy EQ and other controls that a preamp might. There is also a 1/4" pass through jack so you can also send it to your stage amp. Many amps have them built in - but oftentimes a sound person wants the uncolored sound of your bass fiddle, not a bass sound that's been "fiddled with" (with all the EQ knobs on your amp.) This box takes the feed directly off your pickup, before it hits your stage amp (and its settings) provides a high-impedance matched signal, and sends it to an XLR plug that goes straight to the mixer. What is a DI box? It's your primary connection to the sound guy (or gal.) The means for getting your bass into the house sound system. So it's very flexible bring it to your upright bass jazz gig on Friday night, and your "slab" bass blues job on Saturday! Amd the 220k-ohm setting warms up the tone of a magnetic pickup to give you the feel and tone as if connected to a tube amplifier. The 1 meg-ohm position delivers the classic impedance found on most active DI boxes. But they didn't limit it to that - a useful input impedance switch allows you to choose two other settings as well. The new Radial PZ-DI is a direct injection (DI) box that is specifically designed to accommodate the unique impedance needs of a piezo-based pickup (which is what most of us have on our basses, be it a Realist, Bass Max, Full Circle, etc.) The ultra-high 10 meg-ohm impedance is used to compensate for the harsh, quacky tone that some piezo pickups exhibit. It's kind of "their thing." They've recently come out with a new model, which specifically addresses the needs of upright bassists like us - and it's equally useful for your upright AND electric bass gigs! Radial Engineering has long been known for extremely durable, reliable, great-sounding direct boxes.
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