Scan code: LN123293 Manufacturer code: ZIO

Source Audio - Zio Analogue Front End & Boost Pedal

Source Audio - Zio, Preamp/Boost Effects Pedal with 4 Preamp Circuits, Tone Control, and +20dB Boost

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Scan code: LN123293 Manufacturer code: ZIO
Order now and get it tomorrow, Thu 19th May
Get it Tomorrow, 19 MayIn stock
From £8.80 / month (APR 5.9%) or 0% for 4 months
Monthly Payment: £17.11
Instalment Rate: 5.9% p.a. (fixed)
Cost of purchase: £199.00
Total inc. interest: £205.23
Monthly Payment: £8.80
Instalment Rate: 5.9% p.a. (fixed)
Cost of purchase: £199.00
Total inc. interest: £211.13
Minimum Spend: £99
Instalment Rate: N/A
Cost of purchase: £99
Total inc. interest: £99
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Delivery Options
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Analogue Front End & Boost Pedal
Source Audio - ZIO

Antelope Audio - Zen Q Synergy Core

"The Better Box" The word "ZIO" is an acronym for Impedance (“Z” is the electrical symbol for impedance), Input (“I”), and Output (“O”). The pedal is designed to take a guitar’s high impedance signal, sweeten the tone with any of its four preamp circuits, and output a strong, low impedance signal that won’t be altered by the buffered dry tones of effect pedals further down the signal chain.

High fidelity, noise-free Burr-Brown op amps help give ZIO extreme clarity and responsive pick dynamics, while maintaining ideal body and warmth. ZIO has four distinct preamp circuits. JFET offers a completely transparent signal boost with zero coloring or distortion.

LOW-CUT reduces “tubby” bottom-end for a tighter sound with added headroom. STUDIO finds inspiration from the time-honored “Pultec Trick,” a studio technique that adds clarity by cutting the “mud frequencies” and adding mid-range articulation. E-PLEX captures the focused and subtle grit of the preamps found in vintage Echoplex Tape Delay units. The ZIO’s TONE toggle offers three different levels of capacitance (or simulated cable length) to brighten or darken the tone.

at a glance • Circuit knob with four distinct preamp circuits
• High quality components and Burr Brown JFET op-amps
• Output control with up to +20dB of signal boost
• 3-way Tone toggle switch with bright/medium/dark cable capacitance voicing
• 2-way Footswitch Action toggle switch
• Extra Tuner/Line Output
• True Bypass

Match the Circuit to Your Rig...

ZIO offers four discrete preamp circuits: JFET, LOW-CUT, STUDIO, and E-PLEX. Each circuit has its own unique character and has been carefully crafted to maximize feel and performance. JFET, LOW-CUT, and STUDIO are all chiefly low-distortion circuits, while E-PLEX will add a bit of grit to your signal at most output levels. Each preamp circuit comprises the highest quality components and features all-original circuit design.

JFETThis preamp mode is similar in character and behavior to a clean tube amp input with very low distortion. Using high quality JFET Input Burr Brown OP Amps, this mode is transparent and will not add any harshness or excessive brightness. JFET mode is also very helpful in a studio or home recording environment for delivering a more natural sound to the DI or line inputs found on many pieces of studio equipment. Due to its design, JFET mode can also interface with lower impedance line inputs without excessive loss of bass content.

Low-CutThe LOW-CUT mode is designed to remove excessive low frequency rumble and buildup that makes it more difficult to get guitars (and sometimes basses!) to sit well in a mix. The LOW-CUT preamp has no impact on the low midrange or presence frequencies, and, instead, reduces the "low lows" to improve headroom and provide a tighter sound. This is especially useful on guitar neck pickups, some basses, synths, and any other sound that may be too "boomy" and overpowering in a live or studio mix.

Studio​STUDIO mode is based on a pair of popular studio mixing tricks used on guitar and bass. It combines an EQ curve based on the famous "Pultec Trick" (used on records since the 1950s and still today) in combination with other tried and true methods to improve clarity. This mode provides a low mid cut to remove "mud" frequencies, a gentle presence boost in the upper midrange, and a natural-sounding high pass filter, to reduce low frequency rumble. With this mode, you can achieve a more "polished" sound that is intended to fit guitars and basses more clearly in a mix. Without all of that extra bass and mud, you also will gain more volume in the most useful frequencies. This mode works very well after fuzz and overdrive pedals for tone shaping as well!

E-PlexA recreation of the feel, character, and frequency response of a classic early 1970s tape echo unit, the E-PLEX mode offers a vintage-style FET buffer/boost tone that is warm, clear, and a little bit dirty. Many players used to turn off the echo on these old units and simply use the dry preamp for its tone and feel as an always-on effect. In the original units, the output impedance was quite high, and this led to a high frequency roll off with long cable runs. This was difficult to control, but also part of the unit's top end character.

ZIO: Official Source Audio Demo

The Tech Spec

Features Specification
Pedal Type Preamp, Boost
Analogue/Digital Analogue
Inputs 1 x 1/4"
Outputs 2 x 1/4"
True Bypass Yes
Power Source 9V DC power supply (sold separately)
Power Usage 20mA
Height 2.22"
Width 2.36"
Depth 4.1"
Weight 0.6 lbs
Voltage 9 Volts
Current 20 mA
Battery Compartment No
Output Channels Mono
Dimensions 60 x 56.5 x 105 mm (W x H x L)
Passive Pedal No
Additional Information
Scan Code LN123293
Model Number ZIO
GTIN 890729001637

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For further information regarding Scan's warranty procedure please see our terms and conditions

12 months
Return to base
DOA Period:
28 days
RTB Period:
12 months
Manufacturer Contact Details
Scan Computers International Limited
Source Audio - Zio Analogue Front End & Boost Pedal
Source Audio - Zio Analogue Front End & Boost Pedal