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Apollo Solo vs Apollo Twin: which one is best for you?

For you to achieve high-quality music production, the right tools at your disposal can make a big difference. This is where Universal Audio’s Apollo Solo and Apollo Twin interfaces enter the scene. In this article, we will dive into the differences, benefits, and features between these two models. And hopefully, help you make a comprehensive choice for your journey in production.

The Heart of the Difference: Processing Power

           One of the primary features that differentiates the Apollo Solo and Apollo Twin is their processing power. The Apollo Solo contains a single SHARC DSP chip. “SHARC” stands for Super Harvard Architecture Computer. It is a type of digital signal processor (DSP) developed by Analog Devices. Meanwhile, DSP chips are microprocessors that are specialized and designed to operate digital signal processing efficiently. This allows adequate horsepower to accommodate computational demands, especially for small projects and moderate plugin usage. 

           On the other hand, the Apollo Twin is a step ahead of the game. This is because it can provide either a duo-core or quad-core chip. This means that either two or four processing units can work together. This can increase the tasks that can be performed, and they can handle more workload simultaneously. Furthermore, it provides more flexibility when using larger numbers of audio plugins. This enlarged capacity gives space for creative experimentation. Both musicians and producers will benefit from this feature as it allows them to use a wider range of processing techniques, audio effects, and virtual instruments.

The Power of Unison Technology

           If you will make us choose what feature is the most magical in Universal Audio, it would be their Unison technology. This innovative advancement in audio processing allows the alteration of instrument-interface interaction. By mirroring the behaviors and characteristics of classic analog hardware, this transformation was achieved in the digital realm. Moreover, it can replicate the sonic attributes of renowned hardware, like the UA 610B preamp, guitar, and bass amp plugins. This means that the sounds you record will contain the desired vintage color, character, and warmth of classic analog equipment.

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Diving into the Plugin Realm

            The main difference between Universal Audio (UA) plugins and traditional VST plugins is found in their processing. Conventional VST plugins are often developed by third-party companies. These plugins depend on your computer’s Central Processing Unit (CPU) as well as memory when it comes to processing tasks. Meanwhile, UA plugins are created to harness the computing power towards the interface itself. Your computer’s CPU will never be burdened because UA plugins unload the processing tasks to specific chips within the interface. This results in a performance being more seamless and more plugins can run simultaneously.

           It is important to note that UA interfaces have processing limits as well. 

Each interface model has a designated processing capacity. There are a lot of factors that can contribute to several plugins running simultaneously. These include the specifications of the interface and the complexity of the plugins. To optimize the plugin usage, you need to consider recording with the plugin. For example, if you are recording only the vocals, then you can use a Unison preamp plugin when you are tracking. This means that the plugin is applied simultaneously while you are recording. This gives you great results as you are not relying heavily on post-recording processing. Instead, you are capturing the sound that you want from the start.

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A Journey Through Recording: The Console vs. DAW

           If you want to know how Apollo interfaces work when it comes to recording, you can choose between two options. You can either use the Universal Audio Console or your preferred digital audio workstation (DAW). The Universal Audio console is produced by Universal Audio. It is a devoted software application that primarily works for Apollo interfaces. It is created to work smoothly with Apollo interfaces. This can help you monitor your input signal in real time. Near-zero latency is also observed which is very important for performers. This is because they will be able to hear themselves while recording in the absence of delays.

           On the contrary, when UA plugins are directly within your DAW, it can give you more flexibility. You can experience more versatility and creative freedom when it comes to applying and adjusting effects. In this way, adjust the effects that are applied to the tracks that you recorded in a precise manner.

Meet Luna: Universal Audio’s DAW

           For people who are diving into music production, the Apollo Twin interfaces present you with Universal Audio’s Luna DAW. The Luna DAW contains an excellent instrument sound and a full court of features. However, this is only available for Mac users. If you are a non-mac user, you can still use other DAWs to integrate your Apollo interface into your existing workflows. 

Twin’s Extra Features: External Hardware and Optical Connectivity

           The external hardware routing and optical connectivity of the Apollo Twin are on the frontline of its advanced features. It provides the ability to connect compressors, external effects, and preamps. This makes the Apollo Twin shine especially to users with outboard gear. Moreover, it ensures versatility and a wider sonic palette. Expansion of the inputs of your interface is also made possible due to the optical connectivity.

Closing Curtain: Choosing Your Apollo Interface

           As the curtain falls on this juxtaposition, your music production needs are the ultimate deciding factor. The Apollo Solo’s processing power is perfect if you are working on smaller projects. Meanwhile, the Apollo Twin is the best choice if you want to achieve a greater degree of flexibility and external gear integration. 

           Universal Audio’s Apollo interfaces will surely upgrade your sound. With its premium preamps and excellent Unison technology, any user whether you are crafting complex electronic composition, recording vocals, or merely strumming a guitar can see its benefits. As you set sail in your musical journey, remember that your creative vision can easily transform into reality if you have the right tools. Compare the features, explore the benefits, and make a choice that lines up with your musical aspirations. All you need to do is to continue making the music you love. And your Apollo Solo or Win will be your partner in turning your dreams into sonic masterpieces. 

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7 months ago


Great article. Universal audio Apollo is the one I am choosing.

I will let you know how it goes.

Keep up the great work,


7 months ago

Wow both of these look pretty slick. I was an Apogee fan but now you got me thinking.

7 months ago

Very thorough yet short to the chase article !! much appreciated helped a lot !! more of these please :))

James P.
James P.
7 months ago

I am trying to set up a small basement studio for recordings and this has been helpful. You explained everything I needed to know when it comes to the Apollo Solo and Twin. It sounds like my best starting point is going to be the Solo. Thanks a lot for the information! 

Dave Davis
Dave Davis
7 months ago

So the Solo is better for smaller projects and the Twin is best for more demanding ones? I recently upgraded my system so I can handle more tasks at once. My PC can manage all sorts of more demanding tasks now including 4k gaming so I would imagine it can manage with a Twin set up. I just wanted to make sure before I purchased anything.

7 months ago

I love stumbling across post like these because I didn’t even know I needed that!! I admit that I am very new to all of this, but I have always just used the recording software that came with my computer. So much to learn!!