Kaizen Effects Naishi guitar effects pedal, front view
01 / EDO SERIES

EDO SERIES · Preamp / Overdrive

Naishi

Every nuance
of your playing.

An all-analog preamp and overdrive inspired by early American amplifiers. A single preamp channel, passive three-band tone stack and two-position Response switch — from clean tones to low- and medium-gain overdrive.

9 V DCPOWER SUPPLY
True bypassRELAY SWITCHING

BEHIND THE TONE

The character of Naishi.

01

American character

Dynamic cleans, warm breakup and classic overdrive.

02

Passive three-band EQ

Bass, Mid and Treble controls for fine-tuning your tone.

03

Two Response settings

Choose a tighter response or earlier breakup.

CONTROLS

Every adjustment
matters.

Get to know the controls and find your own settings.

Full manual
01Gain

Sets the amount of overdrive. Start at minimum and increase gradually until you reach the desired amount of drive.

02Bass / Mid / Treble

Passive three-band tone shaping. For a natural sound, make small adjustments and use all three controls together.

03Response I / II

Position I gives a tight, smooth response. Position II provides a fuller gain character with earlier breakup. Choose the setting that suits your guitar, amplifier and playing style.

04Master

Sets the final output level of the effect.

05Bypass

Relay-switched true bypass engages or bypasses the effect.

GETTING STARTED

A good place to start.

Starting points from the user manual.
Let your ears guide the final settings.

  1. 01

    Start with minimum Gain

    Set Gain to minimum, then slowly increase it to the desired amount of overdrive.

  2. 02

    Set the EQ to noon

    Start with Bass, Mid and Treble at noon. Fine-tune in small steps.

  3. 03

    Choose your response

    Try both Response settings, then use Master to set the output level.

PRECISE AND TRANSPARENT

Specifications.

Naishi circuit and connection specifications.

Circuit
All-analog preamp / overdrive
Tone controls
Passive, 3-band
Voicing switch
Response — 2 positions
Supply voltage
9 V DC
Input impedance
1 MΩ
Output impedance
≤ 250 Ω
Bypass
Relay-switched true bypass
Dimensions
112 × 60 × 52 mm

DOCUMENTATION

Naishi user manual

Original English user manual · PDF

Download PDF