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R-Zero
Acoustic Guitar Reference Preamplifier

The first pre-amplifier of Enfini Custom Works,
It will be able to be a reference for the acoustic guitar,
I named it that means Reference-Zero
as product starting from the 0th.

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R-Zero_Side.jpg
R-Zero_Rear01.jpg
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The R-Zero is a dual-channel preamplifier system for exclusive use of acoustic guitars

to make full use of a technique of the studio quality and parts, and realized the sound

that was extremely natural and flat.


The R-Zero can express the stereo-phonic sound and presence of acoustic guitars,

and even express the air movement which come out from them,

so you can create individual character of the acoustic guitar's pickup sound

amazingly and natural.


This R-Zero is sure to bring all the players to the depth of the rich sound

and improve your expressive playability and it also enthrall lots of music fans !

Features

  • Rackmountable 1U size unit

  • Selectable front panel type and color

     *only when your order

     *There are also optional panel for sale.

  • Complete dual mono components

  • High-resolution buffer amplifier

  • 3-bands fully parametric EQ

  • Subsonic filter (the full flat and the filtering selectable switch)

  • Send & Return with a kill dry function

  • Mono output stereo return

  • VU meter

  • Pickup sense peak indicator

  • Pickup gain balance adjustment indicator

  • Pickup impedance switch (2MΩ,500KΩ)

  • Phantom power supply (+10V)  for the condenser microphone

  • Tuner

  • Mono & dual (stereo) output unbalanced (-10dB), balanced (+4dB)

  • Channel insertion (Pickup1, Pickup2 Individual)

  • Direct output (Channel insertion switch)

  • Tuner output (selectable pickup output)

  • Headphone output (master interlocking movement)

  • Mute control by the unlatched foot pedal

  • Adopted Ritel's knob made in Switzerland. 

    It has been adopted by famous mixing console which was adopted by many professional recording studios equipments around the world. Its smooth movement and effectiveness is good reputed, so there was no other choice.

Specification

----- INPUT --------------------------------------------------------------------

Input jack Tip / Ring

     Pickup 1  gain range +6dB to +36dB
Input impedance

     2MΩ / 500KΩ     Pickup 1 / Pickup 2

     selectable
Pickup 1 / 2 HA INSERTION Return(Ring)

     standard level -10dBs
EFFECT RETURN-L / R

     standard level -10dBs
MUTE jack low-active

    unlatched input

    *latch type need to set by factory

 

----- OUTPUT ----------------------------------------------------------------

TUNER OUT Pickup 1 /  2 selectable

     standard level -10dBs
Pickup 1 / 2 HA Insertion Send (Tip)

     standard level -10dBs
EFFECT SEND

     standard level -10dBs     max +16dBs
UNBAL.OUT-L / R

     standard level -10dBs     max +16dBs
BALANCE OUT-L / R XLR 2Hot

     standard output level+4dBs

     max+24dBm
HeadPhone Stereo Out

     40mW×2

     recommended load above 12Ω
Phantom Power

     +5V

     (output only one Pickup1 or 2 either)

 

----- EQ (3-bands Parametric EQ) ------------------------

Low

     Frequency range : 24Hz to 1KHz

     Level range : ±15dB
    Q setting : 0.9 / 1.8 / 3.6 switch select
Mid

     Frequency range : 320Hz to 4KHz

     Level range : ±15dB
    Q setting : 0.9 / 1.8 / 3.6 switch select
High

     Frequency range : 720Hz to 20KHz

     Level range : ±15dB
    Q setting : 0.9 / 1.8 / 3.6 switch select

 

----- PowerSupply & Voltage -----------------------------------

AC100V to AC120V / AC220V to AC240V

selectable

 

----- Characteristic -------------------------------------------------------

Frequency response +6dB

     10Hz to 25KHz within ±1dB
Noise unweighted

     under -80dB (IEC-A)
    Distortion under 0.05% (1KHz)

 

----- Dimensions & Weight ---------------------------------------

Rackmount panel type

     482mm (W) × 240mm (D) × 44mm (H)
Optional Desktop panel type

     430mm (W) × 240mm (D) × 44mm (H)
Shipping package size

     620mm (W) × 395mm (D) × 150mm (H)
Weight

     2.4Kg

Shipping package weight

     4.5kg

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