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Choosing an audio interface for guitar or bass
An audio interface is a device that connects musical instruments, such as guitars and basses, to a computer.
Overview
An audio interface is a device that connects musical instruments, such as guitars and basses, to a computer. With an audio interface, you can get professional-grade tones using Neural DSP guitar and bass plugins and easily make studio-quality recordings from the comfort of your bedroom.
With so many audio interfaces on the market, it can be overwhelming trying to choose the right one for your needs. This guide will help you make an informed decision by highlighting the essential features to look for and present different options arranged according to price range. Advancements in technology have allowed even the most budget-friendly audio interfaces to provide exceptional sound quality and essential features, meaning you can get started with around 50 dollars.
What is an audio interface and what does it do?
Connects instruments, microphones and other audio gear to a computer
An audio interface acts as a bridge between inputs from musical instruments, microphones, and other audio gear, and a computer. It converts the analog signals from the instrument into digital signals that the computer can understand and process. The audio interface also processes the digital audio data from the computer, converts it back into analog signals, and sends it to speakers or headphones to be played through.
Allows you to record professional-grade audio at home
An audio interface is a crucial piece of equipment for recording music at home. It provides the necessary connectivity to transfer your musical performance into a digital format and opens up a world of possibilities for home recording. Audio interfaces provide better sound quality and more control over the audio signals than a computer's built-in sound card. They have built-in analog-to-digital converters (ADC) and digital-to-analog converters (DAC) to ensure high-quality audio recordings and playback.
In addition to recording, an audio interface can also be used for monitoring while recording or playing back recorded tracks. With an audio interface, you can connect studio monitor speakers and headphones to your computer, allowing you to hear a more accurate representation of your recordings.
Provides versatility and flexibility with multiple inputs and outputs
Audio interfaces can handle multiple channels. Most audio interfaces are equipped with multiple inputs and outputs, which provide versatility and flexibility in recording and playback.
Multiple inputs allow you to process and record multiple instruments or tracks simultaneously, such as guitar and vocals. Multiple outputs are useful for monitoring and routing audio to different outputs. For example, a guitarist may want to hear their instrument through studio monitors and headphones at the same time.
What are the different types of audio interfaces?
There are several types of audio interfaces to choose from, each offering different features and capabilities. The following are some of the most common types of audio interfaces:
USB audio interfaces
USB audio interfaces are the most common and offer a simple and affordable solution for recording audio. They typically include a single or multiple inputs and outputs and are compatible with most computers and operating systems. USB audio interfaces come in various sizes, with some being very portable. Compact interfaces are perfect for musicians and who want to play and record on the go.
Thunderbolt audio interfaces
Thunderbolt technology allows for faster data transfer rates, lower latency, and more reliable audio performance compared to USB interfaces. Thunderbolt interfaces are typically more expensive than other types of audio interfaces but their high performance and low latency make them a great choice for professional recording and mixing tasks.
PCI/PCIe audio interfaces
PCI/PCIe audio interfaces are hardware devices that are installed inside a computer and connect directly to the computer's motherboard. These interfaces provide high-speed data transfer rates, allowing for low latency and high quality audio recordings. They are typically larger and more expensive than USB and Thunderbolt interfaces and offer more input and output options.
Features to consider when choosing an audio interface
While all audio interfaces will connect your guitar or bass to a computer, different interfaces offer varying features and capabilities. It's essential to understand the technical specifications that impact sound quality and the capabilities of the audio interface when choosing the right one for your needs. Having a solid understanding of these technical specifications will help you make an informed decision.
Number of inputs and outputs
Inputs and outputs refer to the number and type of connections available on the audio interface. Inputs are usually microphone, instrument, or line level and come in either XLR or TRS jack formats. Outputs typically include headphone and studio monitor outputs.
The number of inputs and outputs you need will depend on the type of playing and recording you plan to do. If you are planning on just playing guitar or bass with Neural DSP plugins, or recording a single instrument, then a single input may be enough. However, if you plan to record a full band or multiple instruments simultaneously, then you may need multiple inputs. Similarly, if you plan to use multiple speakers or headphones, you will need multiple outputs.
Preamps
Preamps are an integral part of the audio interface and are responsible for boosting the low-level microphone or instrument signals to line level. The quality of preamps varies greatly and has a significant impact on the overall sound quality of the recording.
Latency
Latency refers to the delay between when a sound is played and when it is heard through the computer. A low latency is important for recording and monitoring live performances, as it ensures that there is minimal delay between the performance and the audio heard through the computer.
Modern audio interfaces can reduce latency, however, the amount of latency is typically determined by the performance of your computer and the tasks it is handling. Even with a high-quality audio interface, a slow or overloaded computer may still result in noticeable latency. Therefore, it is important to ensure that your computer's performance has sufficient processing power and memory to handle the tasks required for your playing, recording or mixing session.
Connectivity and compatibility
Connectivity and compatibility is an important factor to consider when choosing an audio interface. USB audio interfaces are the most common and are compatible with most computers, but other options like Thunderbolt may be better for certain setups.
Consider the equipment you already have, including your computer, and determine what type of audio interface will work best with your setup. Make sure the audio interface you choose is compatible with your operating system and the software you plan to use.
Resolution (“bit depth”) and sample rate
Bit depth refers to the number of bits used to represent the amplitude of an audio signal. A higher bit depth means more dynamic range and a lower noise floor, resulting in a clearer and more detailed sound. The standard bit depth for audio interfaces is 24 bits, which provides ample dynamic range for most musical styles.
The sampling rate determines the number of times per second that an audio signal is sampled and digitized. The higher the sampling rate, the more accurate the representation of the analog signal will be. Common sampling rates for audio interfaces are 44.1 kHz, 48 kHz, and 96 kHz, with the latter offering the highest accuracy and detail.
A high resolution and sample rate provide better audio quality, but may also require more processing power.
Portability
If you plan to record on the go, then portability may be an important factor to consider when choosing an audio interface. Portable audio interfaces are designed to be lightweight and easy to carry, making them ideal for recording on the go. However, portable audio interfaces may have fewer inputs and outputs than other options.
Price
Before you start shopping for an audio interface, determine how much you are willing to spend. Audio interfaces can range from budget-friendly options under $80 to high-end options that cost thousands of dollars.
Higher-end interfaces offer more features and enhanced audio quality, however even budget-friendly audio interfaces today offer professional-grade sound quality and all the necessary features to get you started. Choose an audio interface that fits your budget and has the features you need.
Best audio interfaces for guitar and bass
Our top picks
We compiled a list of audio interfaces that we recommend based on their compatibility with Neural DSP plugins, features, and overall performance. Please note that there are countless other capable options available on the market.
Regardless of the option you choose, each audio interface listed below offers exceptional performance and a range of features that make them a great choice for playing, recording and producing music. Keep in mind that all of the options in this list have a lot of additional features not mentioned here and that this guide provides just a basic overview of each one.
Budget-friendly options (under $200)
Focusrite Scarlett Solo 3rd Gen
The Focusrite Scarlett Solo 3rd Gen is an audio interface that is ideal for making high-quality recordings in either home or studio settings. It is designed to work with both Mac or PC, and is compatible with most popular audio software. The third-generation of the Scarlett Solo has a Focusrite preamp and two inputs with natural-sounding recordings and low noise. The addition of a USB Type-C connection makes it easy to hook up to modern computers. The Scarlett Solo also has a dedicated headphone output for monitoring and a volume control for the main output, allowing for flexible adjustments. The combination of features and an intuitive design make the Focusrite Scarlett Solo 3rd Gen a great option for musicians looking for a reliable audio interface.
Number of inputs and outputs: 2 inputs / 2 outputs
Connectivity: USB port Type C
Resolution and sample rate: 24bit / 192khz
Price: ~$115
Focusrite Scarlett 2i2 3rd Gen
The Focusrite Scarlett 2i2 3rd Gen is an excellent audio interface for any musician or producer. It is packed with features, including two mic/line/instrument inputs, an independent headphone output, and two balanced line outputs. It also features low-noise preamps and clarity-enhancing air technology, making it perfect for recording and mixing. The Scarlett 2i2 is also easy to use and has a clear, intuitive user interface, so you can quickly set up and start recording. It is also quite affordable and offers great value for money. The Focusrite Scarlett 2i2 3rd Gen is an excellent audio interface that offers impressive features and great value for money.
Number of inputs and outputs: 2 inputs / 2 outputs
Connectivity: USB port Type C
Resolution and sample rate: 24bit / 192khz
Price: ~$150
Apogee Jam+
Ideal for musicians, producers and sound engineers, the Jam+ delivers high-quality audio recording. It is user-friendly with simple controls and a straightforward design, allowing for quick setup. Connecting to a computer is effortless and the included software makes it easy to configure. The Jam+ boasts fantastic sound quality, featuring a clear preamp and professional-grade digital conversion. It's also highly portable, compact, and comes with cables for easy use on any device. If you're in need of a high-quality audio interface, the Apogee Jam+ is a great solution with its ease of use, excellent sound quality, and portability for professional-level audio recording.
Number of inputs and outputs: 1 inputs / 2 outputs
Connectivity: USB port Micro B
Resolution and sample rate: 24bit / 96khz
Price: ~$170
Mid-range options:
Focusrite Scarlett 4i4 3rd Gen
The Focusrite Scarlett 4i4 3rd Gen offers a great combination of high-quality sound and convenience, with an intuitive user interface. It has four analog inputs and four outputs, making it easy to record multiple audio sources and play them back simultaneously. It also boasts excellent preamps, with the ability to switch between +48V Phantom Power, low-noise operation, and headphone outputs. The Focusrite Scarlett 4i4 3rd Gen is an amazing audio interface that is ideal for musicians, producers, and audio engineers. It offers convenience, flexibility, and great sound quality, making it an excellent choice for any production environment.
Number of inputs and outputs: 4 inputs / 4 outputs
Connectivity: USB port Type C
Resolution and sample rate: 24bit / 192khz
Price: ~$200
Apogee BOOM
The Apogee BOOM has a compact size, is easy to use, and has high-quality sound. The BOOM's compact design makes it ideal for musicians, producers, and sound engineers who need a portable recording solution. The controls are simple to understand and use, and the interface is easy to connect to a computer. Additionally, the BOOM features Apogee's renowned digital audio conversion technology, which provides professional-level sound quality with plenty of headroom and depth. The BOOM is also highly versatile, as it can connect to a wide range of devices and be used for a variety of recording applications. Overall, the Apogee BOOM is a great choice for anyone who needs a high-quality, portable audio interface.
Number of inputs and outputs: 2 inputs / 2 outputs
Connectivity: USB port Type C
Resolution and sample rate: 24bit / 192khz
Price: ~$315
Focusrite Scarlett 18i20 3rd Gen
The Focusrite Scarlett 18i20 3rd Gen has 18 inputs and 20 outputs, making it suitable for recording and mixing multi-track recordings. The third generation of the Scarlett 18i20 includes upgraded preamps that provide improved sound quality, and the interface has a wide dynamic range that ensures audio clarity. Additionally, the Focusrite Scarlett 18i20 3rd Gen is compatible with a variety of operating systems and has a user-friendly interface that makes it easy to set up and use. The Focusrite Scarlett 18i20 3rd Gen is a versatile and reliable audio interface that provides excellent sound quality and a range of features for recording and mixing.
Number of inputs and outputs: 18 inputs / 20 outputs
Connectivity: USB port Type C
Resolution and sample rate: 24bit / 192khz
Price: ~$630
High-end options:
Apogee Duet 3
The Apogee Duet 3 features advanced digital audio conversion with low latency, ensuring that recordings are clear and accurate. The interface offers multiple inputs and outputs, allowing for recording a variety of sources, including instruments, microphones, and line level sources. The Duet 3 also comes with touch-sensitive controls and an OLED display, providing easy access to essential functions. Its compact size and portability make it a great option for mobile recording or use in small studios. Additionally, the Apogee Duet 3 is compatible with a wide range of software and operating systems, making it a versatile and practical option for musicians, producers, and sound engineers.
Number of inputs and outputs: 2 inputs / 4 outputs
Connectivity: USB port Type C
Resolution and sample rate: 24bit / 192khz
Price: ~$680
Focusrite Clarett+ 8Pre
The Focusrite Clarett+ 8Pre has a large selection of inputs and outputs, and is capable of recording high-quality audio. The interface also features Focusrite's signature sound, which is known for being clean and transparent. The Clarett+ 8Pre is also very easy to use and is compatible with both Windows and Mac computers. With its excellent sound quality, versatility, and ease of use, the Focusrite Clarett+ 8Pre is a top choice for many recording professionals and musicians.
Number of inputs and outputs: 18 inputs / 20 outputs
Connectivity: USB port Type C, Type A
Resolution and sample rate: 24bit / 192khz
Price: ~$1000
Apogee Symphony Desktop
The Apogee Symphony Desktop is an excellent audio interface for those looking to get studio-quality sound. Its hybrid design combines a desktop-friendly form factor with features typically found in high-end audio interfaces, such as low-latency performance, a comprehensive software suite, and much more. It also has a simple-to-use, intuitive interface that allows you to quickly set up and customize your audio setups. The Symphony Desktop is also highly compatible and works with any DAW. Overall, the Apogee Symphony Desktop is a great choice for musicians who want professional-grade sound with the convenience and flexibility of a desktop form factor.
Number of inputs and outputs: 10 inputs / 14 outputs
Connectivity: USB port Type C, Type A
Resolution and sample rate: 24bit / 192khz
Price: ~$1500
Using the Quad Cortex as an audio interface
Our flagship product, and the most powerful floorboard amp modeler in the world, the Quad Cortex also doubles as an audio interface, offering high-quality audio inputs and outputs for playing live performances, recording and monitoring. The Quad Cortex has a variety of features that make it the best option for musicians who want an all-in-one solution for recording and processing their guitar or bass tone.
When compared to other audio interfaces, the Quad Cortex offers a more comprehensive solution for guitar and bass players as it provides not only the inputs and outputs needed for performing and recording, but also the processing power and software needed to achieve a professional-grade tone.
Learn more about the Quad Cortex.
Next steps
Investing in a quality audio interface is an important step in your musical journey. By having the right tools, you can focus on your playing and creativity without the distractions of technical issues. With the right audio interface, you'll be able to unleash the full potential of your guitar and bass playing, and take your recordings to the next level.
Once you have an audio interface, head over to our guide on how to connect your guitar or bass to your computer.
After that, download a 14-day free trial of any of our guitar or bass plugins and take your tone to the next level.
Guides for getting started with plugins
Choosing an audio interface for guitar or bass
Creating an iLok account and downloading iLok License Manager
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