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User Review

Nice Pre - Reviews Radial Engineering PZ-Pre

Radial Engineering is one of those companies that has revolutionized the pedal world with their innovative and useful electronics. They have build some of the world's best foot pedals and controllers. This is an acoustic pre amp and direct box that helps bring the weak sounding pickups in an acoustic guitar up to a level that is cutting through the house pa system.

* Piezo acoustic input signal boosters
* Designed for studio and live performance
* Unique Mix function
* 1 -gauge construction
* 3-year transferable warranty


* External 15VDC power supply
* Input impedance regular: 6.8 kOhm
* Input impedance piezo: 10 MOhm
* PZB boost level: 10dB
* Low cut roll-off pos-1: 75Hz
* Low cut roll-off pos-2: 220Hz
* Notch frequency range: 56Hz to 330Hz
* Notch Q setting-1: 8dB
* Notch Q setting-2: 15dB
* Low frequency type and spec: Shelving type +/- 12dB @ 75Hz corner freq
* Mid frequency range, type and spec: Parametric +/- 12dB 82Hz to 5.6Khz
* High frequency type and spec: Shelving type +/- 12dB @ 7.5Khz corner freq
* Boost level: 12dB
* Effects send & receive : -10dB, Send 1 kOhm, Return 15 kOhm
* Polarity Switch: 180 degrees (absolute phase reversal)
* Input-1: 1/4" unbalanced
* Input-2: 1/4" unbalanced
* Insert send & receive: Send 1 kOhm, Return 15 kOhm
* Output instrument: Hi-Z, coaxial, 1 kOhm
* Output Tuner: Hi-Z, coaxial 6.8 kOhm
* Pre-EQ: XLR male balanced mic level 600 ohms
* Post-EQ: XLR male balanced mic level 600 ohms
* Dimensions: 8" x 4-1/4" x 1-3/8" (203x108x35mm)


This thing is a wealth of power in a small little direct box. It has unique mix function that allows you to insert to instruments and mix the both together or even using two different pickups on a single guitar that feature is an option as well. This ting is the brain or multiple functions of getting your sound of a great acoustic to the audience with precision and consistence.

It also has the option o boosting your signal as well. Top that off with a built in effects loop for running delays and choruses and such into your acoustic signal. This is great for someone who may be using an acoustic in a small coffee shop and needs to fill the air with multiple leads and throw them in a loop and playing over the effected riff or signal. It is nice for using layers of guitars signals or even using your main signal and adding effects on top of that.


At new these units come in right at around $299, which is a fantastic price for a great sounding and resourceful preamp and direct box. I would recommend this to any club or church that needs hook up acoustic guitars on an ongoing basis and needs a very useful and versatile direct box preamp.