Skip to main contentSkip to footer
Slide 1 of 10

Overview

The Westone Audio MACH 70 IEMs feature 7 balanced-armature drivers for precise, high-resolution sound with deep bass and clear highs. Designed for professional musicians, they include a premium Linum ULTRABaX cable and ergonomic fit for comfortable long-term listening and performance use.

Westone Audio MACH 70 Universal IEM Wired Earbuds – 7 Balanced Armature Drivers, Professional In-Ear Monitors with Linum ESTRON ULTRABaX Cable

Model: WA-M70
Web Code: 19852480
Sold and shipped by | 3.5 seller rating (32 reviews)

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Seller Return Policy

Read return policy

Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

Product Overview:

The Westone Audio MACH 70 is a professional-grade in-ear monitor designed for musicians and audio enthusiasts who demand precise, high-resolution sound. Featuring a 7 balanced-armature driver system and advanced crossover design, it delivers detailed clarity, powerful bass, and a wide soundstage for an immersive listening experience across all music genres.

Key Features:

7 Balanced Armature Drivers: Configured with dedicated low, mid, and high drivers for accurate sound reproduction

3-Way Passive Crossover: Ensures balanced frequency separation and clear audio detail

Premium Soundstage: Wide extension with smooth highs, controlled mids, and powerful bass response

Ultra-Low Impedance Cable: LINUM ESTRON ULTRABaX cable with 0.6 Ohms impedance for clean signal transmission

Ergonomic Fit: Designed for long listening sessions with reduced ear fatigue

Wide Frequency Response: 5Hz–22kHz for detailed audio performance across the spectrum

High Sensitivity: 110dB @ 1kHz for efficient and dynamic output

What’s Included:

Westone Audio MACH 70 In-Ear Monitors

Linum ESTRON ULTRABaX T2 Cable

Ear Tips (Multiple Sizes)

Carrying Case

User Documentation

Why Choose This Product:

The MACH 70 is built for professional monitoring and critical listening, offering exceptional clarity, precision, and comfort. Its advanced multi-driver design and high-quality cable system ensure accurate sound reproduction, making it ideal for stage performance, studio work, and audiophile use.

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping may be available on orders over a minimum amount (before taxes, fees, and promo codes). Shipping charges may vary based on item size and your shipping address. Want a shipping charge estimate? Simply add an item to your cart, then access the cart and enter your postal code in the shipping estimate section.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • No restrictions in Canada
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
See our return policy to find specific return information for this product and steps on how to return by mail.