Pricing and availability
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Average Price: $2,521
High-end/Boutique
$100
$501+
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Based on price data from 7 merchants for "Solid State Logic Bus+". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Immerse yourself in the legacy of pristine audio compression with the Solid State Logic Bus+, the latest evolution in a lineage of industry-defining signal processors. With its roots tracing back to the legendary SSL 4000 B console, the Bus+ not only encapsulates decades of iconic sound but elevates it with contemporary versatility and innovation. This rackmount marvel is your gateway to achieving that elusive, polished mix, offering an array of features designed to refine and define your sound.
At the heart of the Bus+ lies an authentic SSL Bus Compressor circuit, renowned for its ability to cohesively blend tracks into a single, unified mix. Whether you're aiming for the punchy dynamics of a drum buss or the subtle finesse of master buss compression, this processor delivers with high-performance 2181 THAT VCAs and multiple compression modes inspired by the XLogic and early 4K, ensuring maximum sonic flexibility. Beyond compression, the Bus+ introduces the D-EQ, a dynamic 2-band analog equalizer that adds that final sheen, making your tracks stand out with clarity and depth.
Designed for the modern studio, the Bus+ boasts 100% analog circuitry with the precision of stepped, digitally controlled pots. Its 2-channel configuration can operate in four distinct modes, catering to a variety of stereo and mono applications. The inclusion of an external sidechain I/O, configurable processing order, and sleep modes further attest to its adaptability in any recording or mixing environment.
Key Features:
- Authentic SSL Bus Compressor circuit with high-performance 2181 THAT VCAs
- Versatile compression modes based on historical SSL designs for varied sonic possibilities
- D-EQ dynamic equalizer for precision tone shaping
- 100% analog circuitry with digitally controlled precision for accurate adjustments
- Four modes of operation (Classic Stereo, Σ S/C Stereo, Dual Mono, Mid-Side) catering to different mixing needs
- External sidechain I/O, configurable processing order for flexible signal routing
- Sleep and auto-sleep modes for energy efficiency
- Comprehensive control options including Attack, Release, Make-up Gain, and Sidechain Highpass Filter
- Parallel compression via Mix control for blending the perfect amount of compression with your original signal
Owner's manual
Solid State Logic Bus+ User ManualProduct specs
| Type | Bus Compressor |
| Number of Channels | 2 |
| Controls | Threshold, Ratio, Attack, Release, Make-up, Mix |
| Threshold | +20dB |
| EQ | 2-band EQ |
| Frequency Response | 20Hz-20kHz |
| Inputs | 2 x XLR |
| Outputs | 2 x XLR, 2 x XLR (EXT Send) |
| Sidechain I/O | 2 x XLR (L/R) |
| Rack Spaces | 2U |
| Power Source | Standard IEC AC cable |
| Height | 3.5" |
| Depth | 11.9" |
| Width | 19" |
| Weight | 13.1 lbs |
| Processor Type | 2-channel Bus Compressor |
FAQs
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What are the primary functions of the Solid State Logic Bus+?
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The Solid State Logic Bus+ is a 2-channel bus compressor designed to provide dynamic control and cohesion to your mix. It features threshold, ratio, attack, release, make-up, and mix controls, along with a 2-band EQ for additional tonal shaping.
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Is the Solid State Logic Bus+ suitable for mastering applications?
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Yes, the SSL Bus+ is well-suited for mastering, offering precise control over dynamics and the ability to "glue" mixes together, enhancing the overall cohesion and professional polish of the final output.
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What connectivity options does the Solid State Logic Bus+ offer?
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The Bus+ provides 2 XLR inputs, 2 XLR outputs, and 2 XLR external sends for flexible integration into professional studio setups, along with sidechain I/O for advanced dynamic control.
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How does the Solid State Logic Bus+ handle different audio genres?
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The SSL Bus+ is versatile and can handle a wide range of audio genres, providing the necessary dynamic control to enhance everything from rock and pop to jazz and electronic music.
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Can the Solid State Logic Bus+ be used with external sidechain signals?
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Yes, the SSL Bus+ includes sidechain I/O via XLR connections, allowing you to use external signals to trigger compression for creative dynamic processing.
Videos
Sweetwater
Solid State Logic Bus+ Compressor Demo
Reviews
PROS
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Stereo, Dual Mono, and Mid-Side processing capabilities enhance mixing versatility
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SSL 4K emulation offers classic sound character
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Low THD mode ensures clarity and punchiness in the low end
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2 band dynamic EQ provides precise tone shaping
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Digitally controlled analog circuits with stepped potentiometers for total recall
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Smooth bus comp section that preserves transients
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Integrates perfectly with SSL Fusion for cohesive setup
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Versatile modes from clear to character-rich sound
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Enhances both tracking and mastering workflow
CONS
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Deep menus may present a learning curve for new users
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Solid State Logic Bus+.
Build quality
Features and functionality
Use cases and applications
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It's particularly effective in leveling sound quality across various PA systems, from bar rigs to large festival setups.
Source
Setup and maintenance
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When used as an insert on the main LR buss, it enables consistent processing across all outputs, including subs.
Source
User experience
Other
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Users find the interface intuitive despite its complexity, with all necessary controls readily accessible on the front panel.
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Comparisons
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The Bus+ is compared favorably to the Dramastic Obsidian for its unique low-end enhancement, though at the cost of stereo width.
Source
Critic Reviews
Based on 0 Reviews and 0 Ratings
Artist usage
Add artist
In this Youtube video we see Zonneveld making an Acid Techno Track from scratch in his studio. He explains how he works and how he uses different pieces op equipment. The Bus is seen throughout the video for example at 17:16.
In the video titled "Epic HOME STUDIO Setup 2025 | Colt Capperrune (studio tour)" by Andrew Masters, the Solid State Logic The Bus+ Stereo Bus Compressor is clearly visible at 0:38, positioned above the SPL PQ Mastering Equalizer within the rack integrated into Colt Capperrune's working desk in his Atmos mixing room. This setup is further showcased at 23:10 in the video.
DFEX, a renowned composer, music producer, and audio engineer, has confirmed his use of the Solid State Logic Bus+ compressor specifically for processing drums, as evidenced by a statement made on his official Twitter account, @DFEXOfficial, where he mentioned "@natemixing ssl master comp." This citation directly links DFEX with the utilization of this specific piece of studio recording gear in his musical production workflow.
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Solid State Logic Bus+, it is most commonly used with the following gear.
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