---
product_id: 14925980
title: "Twinbuys NUX AS-4 Amplifier Simulator Guitar Electric Effect Pedal True Bypass Black"
brand: "tiger"
price: "NT$262"
currency: TWD
in_stock: false
reviews_count: 13
url: https://www.desertcart.tw/products/14925980-twinbuys-nux-as-4-amplifier-simulator-guitar-electric-effect-pedal
store_origin: TW
region: Taiwan
---

# Amp distortion simulation Dual power options (battery/adapter) Passive 3-band EQ control Twinbuys NUX AS-4 Amplifier Simulator Guitar Electric Effect Pedal True Bypass Black

**Brand:** tiger
**Price:** NT$262
**Availability:** ❌ Out of Stock

## Summary

> 🎸 Elevate your tone game — don’t just play, dominate the soundscape!

## Quick Answers

- **What is this?** Twinbuys NUX AS-4 Amplifier Simulator Guitar Electric Effect Pedal True Bypass Black by tiger
- **How much does it cost?** NT$262 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/14925980-twinbuys-nux-as-4-amplifier-simulator-guitar-electric-effect-pedal)

## Best For

- tiger enthusiasts

## Why This Product

- Trusted tiger brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Gain Boost for Edge:** Extra high-frequency gain lets you dial in aggressive distortion that cuts through any mix.
- • **Precision 3-Band EQ:** Tailor your bass, mid, and treble frequencies with passive controls for a natural, dynamic sound.
- • **True Bypass Clarity:** Preserve your pure guitar tone with zero signal loss when the pedal is off.
- • **Rugged Aluminum Build:** Durable, sleek black alloy housing designed to withstand the rigors of gigging and rehearsals.
- • **Authentic Amp Tone Simulation:** Recreate classic guitar amp distortion and cabinet resonance for that pro stage vibe.

## Overview

The Twinbuys NUX AS-4 is a compact, true bypass guitar amplifier simulator pedal featuring a passive 3-band EQ and high-frequency gain boost. Powered by 9V battery or AC adapter, its rugged aluminum alloy housing ensures durability while delivering authentic amp distortion and cabinet effects. Perfect for guitarists seeking versatile tone shaping with minimal signal loss.

## Description

Features: Simulate the characteristic distortion and cabinet of a guitar amplifier. Extra amount of gain boost to higher frequency for greater distortion effect. Passive 3 band EQ for nature tone. True bypass design, minimizes tone loss and get more control of your pedal. Aluminum alloy housing, good durability. LED indicator shows status of effect and battery condition. The pedal can be powered by a battery or AC adapter. 4 adjustable knob: Bass knob: control the amount of low frequency Gain knob: adjusts the amount of distortion High knob: control the amount of high frequency Level knob: control the level of the distorted signal Specification: Color: Black Input impedance: 1M Ohms Output impedance: 10K Ohms Power: 9V battery or 9V AC adapter (not included) Product size: 11.7 * 6 * 3cm / 4.6 * 2.4 * 1.2in Product weight: 238g / 8.4oz Package size: 12.5 * 8.5 * 5.5cm / 4.9 * 3.3 * 2.2in Package weight: 298g / 10.5oz Package List: 1 * As-4 effect pedal 1 * User manual (English & Chinese)

Review: Sounds OK for a very very very inexpensive device. ... - Sounds OK for a very very very inexpensive device. The issue I have with it is the knobs are very sensitive. No resistance so they move when you hit the switch. Strange but the gain knob changes the volume. I have to keep resetting the knobs. Plus the volume is very loud at the bottom of the pot. As soon as you turn it up it gets loud very fast.. No really low volume setting. I also think that if as advertised if your amp goes down you can go direct into the PA, should have a balanced 600 ohm output, not the 1/4 inch High Z one... So you have to go from this into a DI to get into a PA....
Review: it is great for what i use it for - that is ... - it is great for what i use it for - that is dropping at the end of a chain to color the tone properly for distortion/overdrive the gain on it's own sounds good too- I would give it 5 stars if it was a little cleaner - you can't really bump the level w/o getting a little grit - which has pluses and minuses but overall worth the purchase

## Features

- 100% brand new
- Simulate the characteristic distortion and cabinet of a guitar amplifier.
- Extra amount of gain boost to higher frequency for greater distortion effect. Passive 3 band EQ for nature tone.
- True bypass design, minimizes tone loss and get more control of your pedal
- Search EverTrust for more choices!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BK3V6QS |
| Batteries | 2 AA batteries required. |
| Color Name | Black |
| Customer Reviews | 3.6 3.6 out of 5 stars (41) |
| Date First Available | June 4, 2013 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.64 ounces |
| Item model number | AS-4 |
| Material Type | Aluminum Alloy |
| Number of Strings | 6 |
| Power Source | Battery Powered |
| Product Dimensions | 4.76 x 1.89 x 3.03 inches |
| Signal Format | Analog |
| Voltage | 9 Volts |

## Product Details

- **Brand:** Tiger
- **Color:** Black
- **Item Weight:** 0.04 Pounds
- **Style:** Bass,Distortion,Simulator
- **Voltage:** 9 Volts

## Images

![Twinbuys NUX AS-4 Amplifier Simulator Guitar Electric Effect Pedal True Bypass Black - Image 1](https://m.media-amazon.com/images/I/61q9E9hlLRL.jpg)
![Twinbuys NUX AS-4 Amplifier Simulator Guitar Electric Effect Pedal True Bypass Black - Image 2](https://m.media-amazon.com/images/I/61OHhHTfLOL.jpg)
![Twinbuys NUX AS-4 Amplifier Simulator Guitar Electric Effect Pedal True Bypass Black - Image 3](https://m.media-amazon.com/images/I/41uNIO-JpLL.jpg)
![Twinbuys NUX AS-4 Amplifier Simulator Guitar Electric Effect Pedal True Bypass Black - Image 4](https://m.media-amazon.com/images/I/41qWwm99J8L.jpg)
![Twinbuys NUX AS-4 Amplifier Simulator Guitar Electric Effect Pedal True Bypass Black - Image 5](https://m.media-amazon.com/images/I/41uddmGLGhL.jpg)

## Customer Reviews

### ⭐⭐⭐ Sounds OK for a very very very inexpensive device. ...
*by D***. on June 21, 2018*

Sounds OK for a very very very inexpensive device. The issue I have with it is the knobs are very sensitive. No resistance so they move when you hit the switch. Strange but the gain knob changes the volume. I have to keep resetting the knobs. Plus the volume is very loud at the bottom of the pot. As soon as you turn it up it gets loud very fast.. No really low volume setting. I also think that if as advertised if your amp goes down you can go direct into the PA, should have a balanced 600 ohm output, not the 1/4 inch High Z one... So you have to go from this into a DI to get into a PA....

### ⭐⭐⭐⭐ it is great for what i use it for - that is ...
*by J***N on May 29, 2015*

it is great for what i use it for - that is dropping at the end of a chain to color the tone properly for distortion/overdrive the gain on it's own sounds good too- I would give it 5 stars if it was a little cleaner - you can't really bump the level w/o getting a little grit - which has pluses and minuses but overall worth the purchase

### ⭐⭐⭐⭐⭐ Amazing pedal!
*by T***R on June 15, 2018*

I never review items but I have to with this pedal. I've played guitar for 14 years and this is the best distortion/overdrive pedal I've ever used. It sounds big and clean, like an amp head would sound. If you're sceptical, don't be... Its got a wide range of sounds from blues, clean overdrive, rock, to metal. I play different styles of music and I can simply turn a knob to change what I'm wanting to do. I wouldn't call this cheap, but very inexpensive for what you get. Well worth the money!

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-15*