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Based on price data from 3 merchants for "Waves API 550A + API 550B". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
For those seeking to blend vintage charm with modern versatility, the Waves API 550A + API 550B EQ plugin suite delivers an unparalleled audio sculpting experience. Inspired by the legendary 1960s API consoles, these plugins encapsulate the "Proportional Q" technology, which adjusts the bandwidth depending on the amplitude setting, ensuring precise control over your mix. The API 550A, a 3-band equalizer, is known for its ability to create a smooth, musical response, ideal for both corrective and creative EQ tasks. Meanwhile, the API 550B extends your tonal palette with four overlapping bands and 7 switchable filter frequencies, offering the sweet analog warmth that API is celebrated for.
Both plugins promise high headroom, maintaining clarity even under extreme settings. Whether you're polishing vocals, refining instruments, or crafting entirely new sounds, this suite empowers producers and musicians with a wide range of tonal possibilities. These EQs are a staple in professional studios and promise the same high-fidelity sound in your digital workstation.
Key Features:
- Includes both API 550A 3-Band and API 550B 4-Band equalizers
- "Proportional Q" technology widens/narrows bandwidth based on gain settings
- API 550A offers selectable peaking/shelving on high and low frequencies
- API 550B features 7 switchable frequency centers per band
- High headroom with +30 dB clip level for pristine sound quality
- Ideal for both corrective and creative EQ tasks
Product specs
| Software Type | EQ |
| Platform | Mac, PC |
| Upgrade/Full | Full |
| Download/Boxed | Download |
| Bit Depth | 64-bit |
| Format | AAX Native, AudioSuite, VST, AU, SoundGrid |
| Hardware Requirements - Mac | Intel Core i7 or higher (M1 support), 8GB RAM minimum |
| Hardware Requirements - PC | Intel Core i5 / AMD Quad-core or higher (AVX required), 8GB RAM minimum |
| OS Requirements - Mac | macOS 10.15.7 or later |
| OS Requirements - PC | Windows 10 or later (21H2), 64-bit |
FAQs
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What are the key differences between the Waves API 550A and API 550B EQ plugins?
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The Waves API 550A offers a 3-band EQ with seven selectable frequencies per band, while the API 550B provides a 4-band EQ with seven frequencies per band. Both allow up to 12 dB of boost or cut, but the 550B offers more flexibility with an additional band.
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Are the Waves API 550A and 550B plugins compatible with my DAW?
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The Waves API 550A and 550B plugins are compatible with major DAWs that support AAX Native, AudioSuite, VST, AU, and SoundGrid formats, including Ableton Live, Pro Tools, and Logic Pro.
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What are the system requirements for running the Waves API 550A + API 550B plugins on a Mac?
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To run the Waves API 550A + API 550B on a Mac, you'll need macOS 10.15.7 or later, an Intel Core i7 or higher (M1 supported), and at least 8GB of RAM.
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Can I use the Waves API 550A + API 550B plugins on a Windows PC?
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Yes, you can use these plugins on a Windows PC with Windows 10 or later (21H2), an Intel Core i5 / AMD Quad-core processor or higher (AVX required), and a minimum of 8GB RAM.
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What makes the Waves API 550A + API 550B plugins unique compared to other EQ plugins?
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The Waves API 550A + 550B plugins are modeled after the classic API hardware EQs, known for their analog warmth and precise frequency control, offering a distinct sound character that is highly sought after in professional audio production.
Videos
WheelieMix
Waves API 550A vs Hardware
Reviews
PROS
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Adds unique coloring for a "wow" factor on any track
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Exceptionally versatile for various instruments, especially vocals and piano
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Enhances track definition, warmth, and presence
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Nearly indistinguishable from the hardware 550B
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Consistently used in mixes over long periods
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CPU efficient, minimizing strain on your system
CONS
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Waves API 550A + API 550B.
Comparisons
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Users find UA's API 550 emulation very close to hardware at low boost levels, but it lacks the hardware's bite and euphoria when simply running audio through it.
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The Softube API 550 plugin is noted for being cleaner than others but still appreciated for its sound quality.
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Overloud's 550A plugin receives positive feedback from users for its emulation quality.
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IK Multimedia's API emulations are praised for their sound quality, providing another alternative to consider.
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Features and functionality
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Sly-Fi's Axis, an API 550A-inspired plugin, offers different frequency point modes and a drive function for added color.
Source
Critic Reviews
5.0 out of 5
Based on 1 Review and 8 Ratings
98
Very close to the real thing
I've owned this plugin for roughly 3 years, and use it on every mix. I recently purchased a hardware 550b and can confidently say that Waves has gotten very close. Demo it, use it, and see why everybody goes crazy over these things!
Artist usage
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Used With
Based on how musicians on Equipboard use Waves API 550A + API 550B, it is most commonly used with the following gear.
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