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Focusrite Scarlett 18i20 4th Gen USB Audio Interface vs Zoom AMS-44 USB Audio Interface for Musicians & Podcasters

Updated August 2026 — Focusrite Scarlett 18i20 4th Gen USB Audio Interface wins on software and connectivity, Zoom AMS-44 USB Audio Interface for Musicians & Podcasters wins on price and ease of use.

The Focusrite Scarlett 18i20 offers superior audio quality and extensive connectivity, making it ideal for professionals, while the Zoom AMS-44 is a budget-friendly option for casual users.

Why Focusrite Scarlett 18i20 4th Gen USB Audio Interface is better

Audio Quality

Scarlett 18i20 has 24-bit, 192kHz converters.

Connectivity

Scarlett offers 18 inputs and 20 outputs.

Software Bundle

Scarlett includes Pro Tools and other software.

Why Zoom AMS-44 USB Audio Interface for Musicians & Podcasters is better

Price

Zoom AMS-44 is significantly cheaper.

Portability

Zoom is designed for easy transport.

Ease of Use

Zoom has intuitive controls for beginners.

Overall score

Focusrite Scarlett 18i20 4th Gen USB Audio Interface
88
Zoom AMS-44 USB Audio Interface for Musicians & Podcasters
72

Specifications

SpecFocusrite Scarlett 18i20 4th Gen USB Audio InterfaceZoom AMS-44 USB Audio Interface for Musicians & Podcasters
Inputs184
Outputs204
Preamps80
Dynamic Range122dBN/A
Sample Rate192kHzN/A

Dimension comparison

Focusrite Scarlett 18i20 4th Gen USB Audio InterfaceZoom AMS-44 USB Audio Interface for Musicians & Podcasters

Overview of the Products

When it comes to choosing an audio interface, the Focusrite Scarlett 18i20 and the Zoom AMS-44 are both compelling options. The Scarlett 18i20, priced at $749.99, is designed for high-fidelity multitrack recording, while the Zoom AMS-44, at $179.99, targets musicians and podcasters with its more streamlined features. This clear difference in price, with the Zoom being about 76% cheaper, reflects their intended uses and capabilities.

Target Audience

The Focusrite Scarlett 18i20 is aimed at professional musicians and podcasters who require extensive input and output options for complex recordings. It features 18 inputs and 20 outputs, making it suitable for larger setups. In contrast, the Zoom AMS-44 caters to a more casual audience, such as independent musicians or podcasters, with its 4 inputs and 4 outputs. This makes the Zoom ideal for simpler recording scenarios, positioning it as a user-friendly choice for those who do not need the extensive features of the Scarlett.

Build Quality and Design

In terms of build quality, the Focusrite Scarlett 18i20 reflects a robust, professional-grade design, suitable for studio environments. It incorporates eight mic preamps and offers advanced features like Auto Gain and Clip Safe. The Zoom AMS-44, while also well-built, is designed to be more portable and user-friendly, emphasizing ease of use with hardware switches for Loopback and Direct Monitoring. This design approach makes the Zoom a more accessible option for those who prioritize portability and simplicity over extensive feature sets.

Audio Quality

Audio quality is a critical factor when comparing these two interfaces. The Scarlett 18i20 boasts 24-bit, 192kHz converters, providing a dynamic range of 122dB, which contributes to detailed and high-fidelity recordings. In contrast, the Zoom AMS-44 offers solid audio quality but does not specify converter details like the Scarlett. While it is suitable for basic recording and streaming, the Scarlett's superior audio capabilities make it the better option for professional applications where sound fidelity is paramount.

Connectivity Options

When it comes to connectivity, the Focusrite Scarlett 18i20 excels with its array of inputs and outputs, including eight mic preamps, ADAT, S/PDIF, MIDI I/O, and Word Clock capabilities. This extensive connectivity allows for versatile routing and the integration of various hardware setups. The Zoom AMS-44, while offering 4 XLR/TRS inputs and 2 headphone outputs, is limited by comparison. Its straightforward connectivity is adequate for many users but lacks the depth required for complex recording sessions.

Software Bundles

Both the Focusrite Scarlett 18i20 and the Zoom AMS-44 come with software bundles that enhance their functionality. The Scarlett includes Pro Tools Intro+, Ableton Live Lite, Cubase LE, and Hitmaker Expansion, providing a comprehensive suite of tools for music production. On the other hand, the Zoom AMS-44 does not specify a software package, which may be a consideration for users seeking a complete recording solution. The inclusion of premium software with the Scarlett adds significant value to its price point.

Ease of Use

Ease of use is another important aspect to consider. The Zoom AMS-44 is designed with intuitive controls, including an innovative switch that allows users to toggle between music and streaming modes effortlessly. This feature simplifies the transition for users who may want to record and stream without complex setups. In contrast, while the Scarlett 18i20 offers powerful features, its complexity may require a steeper learning curve for beginners. This distinction makes the Zoom a more user-friendly option for those who need a straightforward interface without extensive training.

Which should you buy?

Choosing between the Focusrite Scarlett 18i20 and the Zoom AMS-44 largely depends on your specific needs. If you are a professional musician or podcaster looking for high-quality audio, extensive connectivity, and a comprehensive software package, the Scarlett 18i20 is worth the investment at $749.99. However, for casual users or those who prioritize portability and ease of use, the Zoom AMS-44, at $179.99, provides an affordable and functional solution. Ultimately, the decision should be based on your recording requirements and budget constraints.