Are you looking to add that special something to your mix? Tried all the software plugins you can and yet still not getting that punch and slam you desire? Well, then maybe a dedicated hardware stereo compressor might be what you’re missing! Let’s check out the best bus compressors and find one that suits your setup.
Key Facts about Bus Compressors:
A bus compressor is a stereo compressor used in mixing to process the dynamics of channel groups or the main mix bus, adding cohesion and glue for a more unified sound.
Bus compressors are often used subtly, using 1-4 dB of gain reduction in order to maintain the performance dynamics and punch while shaping transients and balancing the energy of the track.
The most popular types of bus compressors are VCA designs, originally pioneered by API and SSL. These compressors are particularly fast and responsive, excellent for precise transient management, and they have that famous “glue” sound we know and love.
Bus compressors can be used in the music production and mastering process of a wide range of different musical styles, but the different types, like VCA, diode bridge, and Vari-Mu, each have strengths for different applications.
In this Article:Key Facts about Bus Compressors:Why use Hardware Compressors at all?What are the Best Bus Compressors?The Best Bus Compressors: Behringer 369The Best Bus Compressors: IGS Audio S-Type 500The Best Bus Compressors: Warm Audio Bus CompThe Best Bus Compressors: Elysia Xpressor neoThe Best Bus Compressors: Drawmer 1968 mkIIThe Best Bus Compressors: Tegeler Audio Manufaktur CremeThe Best Bus Compressors: Heritage AudioThe Best Bus Compressors: SSL Bus+The Best Bus Compressors: WESAudioThe Best Bus Compressors: API 2500+The Best Bus Compressors: Chandler LimitedThe Best Bus Compressors: Rupert Neve DesignsThe Best Bus Compressors: Manley STEREO VARIABLE MUFAQsMore Info:
Why use Hardware Compressors at all?
Although the cost is usually far higher when investing in hardware, there are some important differences worth noting.
While the initial cost of hardware is greater, software has no resale value. You might save a few bucks on paid upgrades when new plug-in versions are released, but that’s about it.
Apart from that, the sound and musicality of one decent hardware processor can do more for your music than an entire channel strip filled with plug-ins in your DAW, if you know how to use it.
Plug-in controllers do their best to recreate the experience, but there is something about having the parameters literally at your fingertips.
What are the Best Bus Compressors?
Compressors come in all shapes and sizes with different topologies to suit the application they are built for. Some are based on vintage tube, FET, and VCA designs, while others aim to break the mold a little and offer unique features. If you decide to take the 500-series route, be aware that the chassis is an additional expense.
The Best Bus Compressors: Behringer 369
The Behringer 369 is a great way to get into vintage-style bus compression at an affordable price point. Based on the Neve 33609 diode-bridge compressor/limiter from the late 1960s, the 369-KT provides a careful recreation of the discrete Class A circuitry with specially made Midas Transformers to achieve the classic sound.
Behringer 369 · Source: Behringer
The 369 is extremely versatile because it has a limiter section for taming transients, while the compressor section adds that mix glue that you’re after. What’s more, you can bypass the limiter and compressor independently and switch the 369 into dual mono mode for tracking instruments and vocals through it if required.
Overall, the 369 provides a great entry point into the world of hardware compressors. With the simple set of controls on each section, you can quickly get the feel of using hardware compression on instrument groups such as drums, guitars, vocals, and synths, as well as recording through the compressor when you need it. Get it at Thomann.*
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Behringer 369-KT
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$439.00 / £379.00 / 449.00€ at
The Best Bus Compressors: IGS Audio S-Type 500
Based in Poland, IGS Audio has been in the game for nearly 20 years now, and the S-Type 500 is one of its popular offerings for the 500-series format. This is an SSL-style bus compressor based on one from the legendary 4000-series consoles.
IGS Audio S-Type 500 · Source: IGS Audio
At first glance, the familiar design is focused on easy operation. Three fixed ratios and a sidechain HPF make it really fast to dial in your desired compression setting.
In addition, you have a mix knob for using the S-Type in parallel. Overall, it’s a great unit for those who are looking to get into hardware processors and don’t know where to start. Get it at Thomann.*
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IGS Audio S-Type 500 VU
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$699.00 / £625.00 / 720.00€ at
The Best Bus Compressors: Warm Audio Bus Comp
The Warm Audio Bus Comp is an affordable 1U rackmount format recreation of the famous SSL bus compressor. Like the classic VCA design, the WA Bus Comp uses parameter controls with selectable values, which allows you to easily recall your favourite settings and develop a feel for what sounds best on your mixes.
Warm Audio Bus-Comp · Source: Warm Audio
To preserve the low-end, you can engage the switchable high-pass filter that goes up to 185 Hz. Meanwhile, this Bus Comp might not have a parallel circuit, but it does have a selectable transformer circuit to get a more vintage sound, and you can trigger the compressor with an external signal for modern applications.
Overall, the WA Bus Comp is a great option for those who are new to using bus compression during mixing. While it may not have the same level of sonic quality as high-end compressors from API or Manley, it does provide a flexible feature set with all the controls you need to really learn about classic console-style bus compression. Get it at Thomann.*
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Warm Audio Bus-Comp
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$733.00 / £659.00 / 749.00€ at
The Best Bus Compressors: Elysia Xpressor neo
From the sound to the look and feel of the design, Elysia brings its unique approach to hardware and the Xpressor neo is a perfect example of this. Rather than being retro-modeled, the aim is to provide instruments that work seamlessly alongside your DAW workflow.
elysia xpressor neo · Source: elysia
Apart from the 1U rackmount version, the Xpressor VCA compressor is available as a 500-series module or as a desktop unit.
This provides plenty of ways to use it in your setup – in studio, or on stage. What sets Elysia apart is features like negative ratios and gain reduction limiting. This makes the Xpressor a versatile creative tool. Get it at Thomann.*
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Elysia xpressor neo 500
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$899.00 / £799.00 / 929.00€ at
Elysia xpressor neo qube
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$1,111.00 / £979.00 / 1,139.00€ at
Elysia xpressor neo
Customer rating: (5)
$1,444.00 / £1,279.00 / 1,489.00€ at
The Best Bus Compressors: Drawmer 1968 mkII
The Drawmer 1968 mkII is an FET compressor with variable tube output stages. It’s extremely flexible as you can use it in stereo link or dual mono mode, and there’s also a sidechain path.
Drawmer 1968 mkII · Source: Drawmer
The 1968 works in a program-dependent fashion, similar to a leveling amplifier, in that there is no ratio control. Another key feature is the BIG and BIGGER mode switch that reduces the processing on the low-end, allowing it to breathe more easily.
The transparent but warm sound and useful features make this a great tool that has applications beyond simply being a bus processor.
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Drawmer 1968 MK II
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$1,539.00 / £1,390.00 / 1,579.00€ at
The Best Bus Compressors: Tegeler Audio Manufaktur Creme
The Creme combines the best of both worlds in one unit. VCA bus compression meets Pultec-style passive EQ in a very pleasing way, with applications on all types of sources.
Tegeler Audio Manufaktur Crème · Source: Tegeler Audio Manufaktur
A selection of four fixed ratios, including a 1.5:1 setting, means you can be as subtle or as vicious with the compression as you like. In addition, there is a sidechain filter at 60 and 120 Hz to preserve your low end.
You can also flip the signal path and place the EQ before the compressor or vice versa, which adds to the utility of the Creme. Also available as the Creme RC, a digitally controlled version. Get it at Thomann.*
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Tegeler Creme Green
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$1,759.00 / £1,579.00 / 1,799.00€ at
Tegeler Creme RC Green
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$2,150.00 / £1,933.00 / 2,199.00€ at
The Best Bus Compressors: Heritage Audio
If you like the vintage sound and approach, Heritage Audio has a range of compressors with options at different price points. The entry point is the Successor, a diode-bridge compressor inspired by the 33609 with sidechain and parallel processing features. Alternatively, the HA 609A Elite offers a similar design approach, except with more transformers and fewer of the added features.
Herchild Next Gen 670N · Source: Heritage Audio
One of the most sought-after product lines in the entire Heritage Audio range is the series of Fairchild 670 clones, ideal for getting that gritty vintage glue. This includes the GRANDCHILD 670 module for the 500-series, with its straightforward interface, as well as the 19-inch rackmount versions, the HERCHILD 670N and HERCHILD 670.
What does the ‘N’ stand for? Well, the 670N is a slightly scaled-down version with fewer tubes and a few more economical design decisions like using solid-state rather than tube circuitry for the side-chain, and a transformer-coupled op-amp on the output stage. Overall, the 670N is a more modern take on the classic vari-mu compressor. Get it at Thomann.*
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Heritage Audio Successor
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$1,499.00 / £1,350.00 / 1,549.00€ at
Heritage Audio HA 609A Elite
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$1,799.00 / £1,599.00 / 1,850.00€ at
Heritage Audio Grandchild 670
Customer rating: (7)
$1,955.00 / £1,745.00 / 1,999.00€ at
Heritage Audio Herchild 670N
Customer rating: (2)
$2,899.00 / £2,599.00 / 2,999.00€ at
Heritage Audio Herchild 670
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$9,777.00 / £8,699.00 / 9,999.00€ at
The Best Bus Compressors: SSL Bus+
With the Bus+, SSL has put its famous G-Series console compressor on steroids. Apart from the classic SSL sound, almost every routing and processing feature you could dream of is now at your fingertips.
SSL Bus+ · Source: SSL
The Bus+ functions as a stereo, dual-mono, or mid-side processor with full digital control and an external sidechain circuit for added flexibility. All this added functionality makes it useful on far more than just a stereo bus, which brings great value.
It may take you a little while to get your head around all the controls, but once you’ve put the Bus+ to work on a few mixes, you’ll quickly start to develop your own workflow. Get it at Thomann.*
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SSL BUS+
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$1,799.00 / £1,625.00 / 1,849.00€ at
SSL 500-Series Bus Comp. MKIII
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$968.00 / £869.00 / 990.00€ at
The Best Bus Compressors: WESAudio
WESAudio provides the best of both worlds: high-quality analogue circuitry and precision digital control from a plugin interface in your DAW. When it comes to compressors, WESAudio has a very impressive lineup with options in 500-series and 19-inch rackmount. This includes a variety of 500-series modules, like the DIONE (VCA), the RHEA (Vari-Mu), the PANDORA (Multiband VCA), and the MIMAS Gemini (dual-FET).
WesAudio ngBusComp · Source: WesAudio
In the 19-inch rackmount format, there are more specialized options like the ngBusComp (VCA) with its mid-side processing, saturation, and sidechain features. Meanwhile, for more subtle applications, the ngTubeComp (Vari-Mu) provides a combination of tubes and transformers with extended tonal range and mid-side processing.
In addition, the ng78 (FET) gives you a modern take on the classic UREI 1178 compressor, with features like variable THD (Total Harmonic Distortion), extended attack time range, parallel compression, and sidechain filter. All these options have digital recall and are controllable from your DAW, which makes switching between sessions a breeze. Get it at Thomann.*
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WES Audio Dione
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$1,169.00 / £1,055.00 / 1,199.00€ at
WES Audio Pandora
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$1,349.00 / £1,199.00 / 1,379.00€ at
WES Audio Rhea
Customer rating: (5)
$1,388.00 / £1,250.00 / 1,419.00€ at
WES Audio Mimas Gemini
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$1,759.00 / £1,585.00 / 1,799.00€ at
WES Audio ngBusComp
Customer rating: (11)
$3,222.00 / £2,899.00 / 3,329.00€ at
WES Audio ngTubeComp
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$4,599.00 / £4,111.00 / 4,699.00€ at
WES Audio ng78 FET Compressor
Customer rating: (1)
$2,222.00 / £1,999.00 / 2,299.00€ at
The Best Bus Compressors: API 2500+
The API 2500+ is a professional-grade bus compressor with all the bells and whistles you’d expect in this price range. The compression parameters offer precise control of your dynamics, and the wide range of ratios, as well as attack and release times, allow you to use the 2500+ for processing instrument groups or your main mix bus.
API 2500+ · Source: API
In the Tone section, you’ll find controls for three different knee settings and three modes for the patented THRUST sidechain filter circuit. This allows the detector to bypass the low frequencies, and the compressor will react only to the rest of the frequency range above. What’s more, you can access the feedforward (modern) or feedback (vintage) modes to match your application.
The 2500+ can also be triggered by external signals, so you can do EDM sidechaining on synths or vocal groups. Meanwhile, the 2500+ has an auto makeup gain feature that can be activated for easy volume matching. The mix control also allows parallel processing, and there are two modes you can use depending on your preference. Get it at Thomann.*
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API Audio 2500+
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$3,699.00 / £3,299.00 / 3,799.00€ at
The Best Bus Compressors: Chandler Limited
When you want the classic sound that helped create so many records from The Beatles and Pink Floyd, the Chandler Limited range of compressors and limiters puts you in the EMI era with recreations that can withstand everyday use. The first and most obvious choice in the Chandler lineup is the TG1 diode bridge compressor, based on the TG12413 limiter, the EMI answer to the Fairchild.
Chandler Limited TG1 · Source: Chandler Limited
For such a high-end processor, the TG1 is remarkably easy to operate with compressor and limiter modes and six release time settings for different applications. Naturally, some users are going to love the sonics of the TG1, but require more control. For this, there’s the Zener Limiter, which is preferred by mastering engineers.
The Zener gives you two compressor modes (vintage tube-style and modern hybrid) and a limiter mode, and you have 11 attack and 21 release settings to match the compressor’s behaviour to the material. Meanwhile, Chandler’s tube compressors, the RS124 and RS660, can also be linked and used in stereo configurations for bus processing. Get it at Thomann.*
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Chandler Limited TG1
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$4,498.00 / £3,999.00 / 4,599.00€ at
Chandler Limited EMI TG12413 Zener Limiter
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$5,399.00 / £4,888.00 / 5,549.00€ at
Chandler Limited RS124 Compressor
Customer rating: (5)
$3,599.00 / £3,222.00 / 3,699.00€ at
Chandler Limited RS660 Tube Compressor
Customer rating: (1)
$3,799.00 / £3,399.00 / 3,899.00€ at
Chandler Limited PSU-1
Customer rating: (13)
$575.00 / £518.00 / 589.00€ at
The Best Bus Compressors: Rupert Neve Designs
The Rupert Neve Designs dynamic processing lineup features some of the most sought-after tools used by industry professionals, both in studio and in live sound environments. Expect the best quality discrete Class-A high-voltage circuit with custom transformers throughout the range, with diode bridge, VCA, optical, and FET compressor options.
Rupert Neve Designs Portico II Master Buss Processor (Black Edition) · Source: Rupert Neve Designs
Taking things in a more classic direction, the Shelford Diode Bridge Compressor is inspired by legendary designs like the 2254 and 33609. Here, you get vintage crunchiness and tonal character, with faster, more modern attack and release settings, and wet/dry mix controls for parallel processing. Then, for a complete bus processing solution, the MBT combines shelving EQ, colourful opto compression, and saturation.
Meanwhile, the flagship Portico II provides a fully featured VCA compressor with a Silk Texture circuit and a dedicated Stereo Field Editor (SFE). Of course, the versatile new OptoFET compressor can also be used for bus processing applications, provided you have two stereo-linked units running across your aux or main output bus. Get it at Thomann.*
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$2,999.00 / £2,666.00 / 3,099.00€ at
Rupert Neve Designs Master Bus Transformer
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$3,999.00 / £3,555.00 / 4,149.00€ at
Rupert Neve Designs Portico II Master Buss Black
Customer rating: (11)
$4,775.00 / £4,199.00 / 4,899.00€ at
Rupert Neve Designs OptoFET
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$2,099.00 / £1,866.00 / 2,159.00€ at
The Best Bus Compressors: Manley STEREO VARIABLE MU
Although the VARIABLE MU compressor/limiter is often compared to the legendary Fairchild, it has an identity and sound of its own. The design was actually inspired by a rather obscure broadcast limiter from Denmark called the Disa Elektronik 91N02, but the VARIABLE MU is a more versatile unit with compression and limiting modes and stereo or dual-mono operation.
Manley Variable-Mu · Source: Manley
This allows you to use the VARIABLE MU as the cleanest, meanest compressor on your mix bus, or you can use it for tracking vocals to bring up the subtle details from a U47-style microphone. This is why the VARIABLE MU is one of the most popular stereo compressors for pro studios for recording, mixing, and mastering applications.
In addition, the VARIABLE MU can be customized and fitted with 6386 (Fairlight) tubes, given mid-side processing capabilities, or there is a mastering version with indented pots for greater precision. Quality like this comes at a price, so if you aren’t looking in this price range, be sure to check out the more modern and affordable NuMU. Get it at Thomann.*
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Manley Variable MU Compressor/Limiter
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$4,599.00 / £4,111.00 / 4,699.00€ at
Manley NuMU
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$2,875.00 / £2,590.00 / 2,938.00€ at
FAQs
1. What is a bus compressor?
A bus compressor is generally a stereo compressor used on a group channel or main mix bus to manage dynamics, merging multiple signals cohesively for a more unified mix.
2. What does a hardware bus compressor do?
Bus compressors can make dynamics more consistent and process transients for added punch and a smoother listening experience, while adding analogue character, detail, and warmth.
3. How much compression should be used on a mix bus?
Engineers usually apply bus compression subtly (1-4 dB gain reduction) to preserve the clarity and dynamics.
4. Are hardware bus compressors better than plugins?
Plugins and hardware each have different advantages, which is why either can produce professional results. While plugins are more affordable and flexible, hardware has unique tonal qualities.
5. Which music genres commonly use bus compression?
Bus compression is widely used in commercial music styles like pop, rock, hip-hop, and country, as well as in electronic dance music, to add cohesion, consistency, and balance.
More about the Best Bus Compressors:
Thomann’s Guide to Compressors*
Learn more about Bus Processing
Leveling amplifiers
SSL bus compressors
Videos:
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