Radial Engineering PZ-Pre

Radial Engineering PZ-Pre

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PZ-Pre, Solid-State Guitar Preamp from Radial Engineering in the Tonebone series.

4 user reviews
Prices starting at $300 Average price: $300

Radial Engineering PZ-Pre review

Tonebone PZ-PRE: The Test

Tonebone PZ-PRE: The Test

Tonebone PZ-PRE Acoustic Preamp When Radial engineering, who has a reputation for making quality gear, branches out into acoustic instrument pre-amps, the result is the Tonebone PZ PRE, a pedal with two high-impedance inputs, a boost and an EQ. Let's take a look... Read more…

Buy new Radial Engineering PZ-Pre

Amazon Radial Engineering Tonebone PZ-PRE Acoustic Instrument Preamp with Microfiber and Free EverythingMusic 1 Year Extended Warranty $299.99
Amazon PZ-Pre $299.99
Amazon Radial Tonebone PZ-Pre Acoustic Preamp $299.99
Amazon Radial Engineering Tonebone PZ-PRE Acoustic Instrument Preamp with Microfiber and Free EverythingMusic 1 Year Extended Warranty $299.99
Amazon Radial Tonebone PZ-Pre Acoustic Preamp $299.99

Radial Engineering PZ-Pre tech. sheet

  • Manufacturer: Radial Engineering
  • Model: PZ-Pre
  • Series: Tonebone
  • Category: Solid-State Guitar Preamps
  • Added in our database on: 02/26/2008

We have no technical specifications for this product
but your help will be much welcomed


Radial Engineering PZ-Pre user reviews

Average Score:4.8( 4.8/5 based on 4 reviews )
 3 reviews75 %
 1 user review25 %
Value For Money :

iamqman's review"Nice Pre "

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.

moosers's review

Radial Engineering PZ-Pre
The Radial Engineering Tonebone PZ-Pre is an acoustic instrument pre-amplifier with a ton of versatility. I've only used it for acoustic guitar, but it advertises being able to be used with any acoustic instrument and beyond. It has all sorts of 1/4" connections for ins and outs, looping, and even for a tuner output.


The Radial Engineering Tonebone PZ-Pre has a whole lot to bring to the table in terms of parameters and options, so it will take a little bit of time to get used to everything going on here. The preamp has parameters for boost, bass, frequency, mid, high, notch, and level one and level two. It has switches for boost, toggling between one and two, and muting. It also has switches for phase, assigning the footswitch, notch Q, and lo-cut. If you seem unsure of how all of this might work, having the manual around might be a good thing.


As I stated earlier, I've only used the Radial Engineering Tonebone PZ-Pre with an acoustic guitar, so I can only speak about this type of use. However, judging by how great it sounds with acoustic guitar, I don't think that using it with other instruments should pose a problem for anyone, especially considering it is designed to take on all types of instruments. The vast array of parameters and options allow it to be an extremely versatile preamp in terms of the different amounts of tones available. I love having access to two inputs at once, as it would be perfect for a live show where you had two acoustic instruments that needed amplification.


I've used the Radial Engineering Tonebone PZ-Pre for a live recording session in the studio for an acoustic guitar. We ran it through this before putting it through the console, and going to the console it had an extremely clean tone. The price of the Tonebone PZ-Pre isn't all that expensive, especially if you're going to have this as a main stay in your live rig. I would definitely recommend this for anyone who has two acoustic instruments that they would want to have at the same level, or if you're simply looking for a great acoustic preamp!

Prosssper's review (This content has been automatically translated from French)

Radial Engineering PZ-Pre
As a first purchase of preamp I would say that everything is there in terms of connectivity.

-Possibility to connect two instruments (against adjusting the EQ will be the same for 2)
Piezo-Booster (not bad for passive piezo)
-Ability to combine two inputs (great for a guitar with two recording sources .... ex = a microphone in rosette and piezo sensors.
- Mute to agree ... Boost to play harder ...
-And everything else full connectivity to connect the beast to an amp or other mixer ...

All I say is o


Simple configuration.
Sound palette appointment ....
a real market ... Sound hot metal sound, EQ is amply his job.
What a pleasure tritouiller knobs and surprise, have fun listening to new sounds ....


I play guitar, fingerstyle as we say, in short, with the fingers: o

Before owning the tonebone pz pre, I plugged in my acoustic guitar directly (breedlove c25crh) directly into an amp AER Compact 60.

Guitar, being equipped with a piezo system (lr baggs) has a sound, once plugged into the EAR, when colder ...
Well, some would say ... piezo + EAR = metallic sound necessarily ...

In addition, from the classical guitar, I wanted a round, warm with an acoustic guitar (at least m closer to this goal).

With the pre-pz tonebone, this object is very very close ...


I have this little gem for 4 days, and c is my first model preamp.
I hesitated with the "D-tar Solstice", but the price is not the same.

What I love this tonebone:

Possibility of 2-plugger instruments and especially (for me by, t have installed a micro k & k trinity on my guitar) to mix two sources of sound recordings.
It mutates to agree in silence between two pieces
-The connectors ... more complete you die: p
EQ it a beautiful rich sound


-No phantom power
2nd-no EQ for the 2nd instrument ... good but the price would be the same

new price around 350 euros, may seem expensive, but it is a preamp that is well worth the shot.
I'm sure he will not leave my 'pedalboard' anytime soon.

If I had the choice again .... eyes closed :)

purpletrain's review (This content has been automatically translated from French)

Radial Engineering PZ-Pre
Prampli Transistors,
Jack 6.35mm in between 1 and 2,
Out XLR output and Out Pre-EQ Post-EQ
Jack 6.35mm exit out.
6.35mm Jack for Tuner
Fader gain between 1 and 2,
Fader Gain for Boost
3-Band EQ,
Notch for the rgler frquence to avoid the feedback,
Two filters to cut bass frquences if Larsen.
The effects are achieved by connecting the loop switchable pedals.
Damage between the two has not its own rglages, when moving from a 1 to Folk on a Classic between the two must be serious change.
Even when I put 9!


We must choose the output: 2 XLR (1 and 2)
1) - Out pre-EQ (without loop) the sound is clear, gnreux, flattering.
2) - Out post-EQ (with loop) same as long as the loop not active, then the quality of active effects comes into play
3) - Output, identical Out the Post-EQ but Jack 6.35mm
To add an effect pedals, you need two cables, one to go, return.

Obetnir for a good sound, you just: plug in, turn, and it is happiness!

The manual in English, but the prampli is relatively simple to use.
I put 9 because the product is manufactured in Canada, and there is no manual in French!


The style of music:
The prampli should anyone looking for a scratching sound of amplified acoustic trs good quality!

I use a Line6 POD XT I put in a loop, which I dyed and amp simulator,
I only use effects when I need it.

I did tests with a sound card ESI ESP1010, Cubase4, speakers Prodipe8 monitoring, and a Yamaha sound system StagePass300.

What can I say except that it is excellent in many configurations:

a) - Ibanez AEG10N, micro piezo, electro-acoustic classic clean sound, powerful equilibrated.
b) - 12-string Takamine EF400s, electro-acoustic Folk: His clear, powerful sound of phosphor-bronze is very well refund you must drop a little treble to avoid this is loud, it comes from prampli microphone that is 25 and the piezo pickup!
c) - Yamaha DBX700 (double micro), the sound is frankly patant, the balance of microphones is 75% for the internal microphone boom / piezo.
d) - Fender Stratocaster (I tried to see), the sound is perfect for arpges, crystalline without warning.

The sounds I like least:
I tested it with a Fender amp FM212R, the sound is more difficult to avoid rgl it sounds like a thud, I must say I'm looking to have an acoustic guitar with an amp conut transistors to have a large and well saturated!


3 Days I have, and I feel that I can not dj longer free!
Most is the sound, unbelievable, as if I bought a G. .. n, a real scratch What!
The least that he would be available over the tt!
Before I tried a OneQ Joemeek, that's fine, but not as much, I kept the microphone.
The report qualitprix is ​​good, especially when you consider the price of Joemeek, or a good acoustic amp transplanted with a good micro!

Repeat this choice?
How direeuh, yes, yes, yes, I am the

Radial Engineering PZ-Pre images

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Radial Engineering PZ-Pre manuals and other files

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Other names: pz pre, pzpre

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