---
product_id: 45646259
title: "Bias Master™ - TAD, with 4 Octal Probes"
brand: "tad"
price: "¥61238"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/45646259-bias-master-tad-with-4-octal-probes
store_origin: JP
region: Japan
---

# Precision Measurement Bilingual Manual 4 Probes Included Bias Master™ - TAD, with 4 Octal Probes

**Brand:** tad
**Price:** ¥61238
**Availability:** ✅ In Stock

## Summary

> 🎸 Tune In, Rock Out! - Elevate your sound with precision.

## Quick Answers

- **What is this?** Bias Master™ - TAD, with 4 Octal Probes by tad
- **How much does it cost?** ¥61238 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/45646259-bias-master-tad-with-4-octal-probes)

## Best For

- tad enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Monitor bias current safely to protect your equipment.
- • **Master Your Sound:** Achieve the perfect bias for your amp with ease.
- • **Real-Time Monitoring:** See live results while you adjust your settings.
- • **User-Friendly Design:** Includes a comprehensive English/German manual.
- • **Versatile Compatibility:** Works seamlessly with various vacuum tube amplifiers.

## Overview

The Bias Master™ - TAD is a cutting-edge tool designed for audiophiles and musicians, allowing for precise measurement of bias current in vacuum tube amplifiers. It comes with four octal probes and a bilingual manual, ensuring a user-friendly experience while enabling safe and effective adjustments to achieve your ideal sound.

## Description

Bias Master™ system BM4 Measures Bias current of the vacuum tubes in your amp. Includes 4 probes and english/german operation manual.The Bias Master™ allows you to monitor the bias current safely and easily. While adjusting the Bias control pot of your amp, the Bias Master™ shows the actual result. This lets you set and evaluate the full reasonable biasing range your amp and tubes offer to find and set your personal perfect choice.The Bias setting has a dramatic impact on the amp's response, break-up and dynamic character.For additional probes (for testing other types of tubes), see S-TBMA2-X

## Features

- Bias Master™ system BM4 Measures Bias current of the vacuum tubes in your amp
- Includes 4 probes and english/german operation manual.
- The Bias Master™ allows you to monitor the bias current safely and easily
- While adjusting the Bias control pot of your amp, the Bias Master™ shows the actual result
- This lets you set and evaluate the full reasonable biasing range your amp and tubes offer to find and set your personal perfect choice.

## Product Details

- **Brand:** TAD
- **Age Range (Description):** Adult
- **Model Name:** Tad
- **Lens Coating Description:** Anti-Reflective, UV-Protective
- **Item Weight:** 27 Ounces

## Images

![Bias Master™ - TAD, with 4 Octal Probes - Image 1](https://m.media-amazon.com/images/I/51cxUx7F7pL.jpg)

## Frequently Bought Together

- Bias Master™ - TAD, with 4 Octal Probes
- Elenco Resistance Substitution Box | Resistance Range From 1Ω To 11, 111 , 110MΩ | 1% Precision: 1Ω-40kΩ- 1 Watt/ 100kΩ- 4MΩ- 1/2 Watt

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**Shop now:** [https://www.desertcart.jp/products/45646259-bias-master-tad-with-4-octal-probes](https://www.desertcart.jp/products/45646259-bias-master-tad-with-4-octal-probes)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-13*