Warm Audio Bus-Comp
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Manufacturer Information
Warm Audio
https://shop.warmaudio.com
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Mogar Music France
Email: info@mogarmusic.fr
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In the Tradition of Legendary Bus Compressors
Designed to recapture the musicality of great VCA bus compressors, the Warm Audio BUS-COMP combines a proven analog architecture with modern options. Compared to "classic" VCAs, it adds coloring possibilities and sidechain management that integrate perfectly with current mixing techniques.Who Is It For and What Is It Used For?
Ideal on the stereo mix to add cohesion and depth, the BUS-COMP also excels on drum buses, overheads, acoustic guitars, keyboards, piano, orchestral ensembles, or voice-over. Its transparency and flexibility make it an ally for mix engineers as well as post-production and light mastering focused on musicality.Key Features and Studio Benefits
Switchable CineMag Transformers
Engaged with a simple press, the CineMag transformers made in the USA enrich the signal with pleasant harmonics, thicken the low-mids, and enhance the perception of depth. When bypassed, you get as straight a signal path as possible, perfect for discreet dynamic control.Intelligent Sidechain for Solid Low End
The switchable external sidechain allows compression to be triggered from a dedicated source. The internal 5-position high-pass filter (30, 60, 105, 125, 185 Hz) prevents the kick and sub frequencies from over-triggering gain reduction, preserving the mix's foundation while maintaining cohesion.Transparency, Musicality, and Workflow
Thanks to the THAT 2180 VCA combined with discrete op-amps, the BUS-COMP delivers fast and clean response, very low noise, and a wide dynamic range. The compression switch facilitates instant A/B comparison to validate your settings without bias, whether you're seeking subtle "glue" or a more pronounced effect.Technical specifications
| Category | compressor |
| Valve | No |
| Rack unit | 1 |
| Switchable high-pass filter | 30, 60, 105, 125, 185 Hz |
| Input impedance | 10 kOhms |
| Output impedance | 50 Ohms |
| Noise level | < -90 dBu |
| Headroom | > +29 dBu, 20 Hz - 20 kHz |
| Dynamic range | > 120 dB |
| Frequency response | 18 Hz - 22 kHz |
| THD + noise, 20 Hz - 20 kHz, input +20 dBu | < 0.05% |
Questions frequently asked
Is the Warm Audio Bus-Comp suitable for stereo mixing?
Designed for the stereo bus, this compressor adds cohesion and depth to the mix. Its THAT 2180 VCA and discrete op-amps provide clean dynamic control, with a dynamic range exceeding 120 dB.
How to prevent the kick from triggering too much compression?
The sidechain high-pass filter offers five frequencies: 30, 60, 105, 125, and 185 Hz. It reduces the influence of the kick and sub on the detection to preserve the low-end foundation.
Can the CineMag transformers be bypassed?
The CineMag transformers made in the USA are switchable. When engaged, they add harmonics and thicken the low-midrange; when bypassed, the signal path remains more direct.
Can an external sidechain be used on this compressor?
A switchable external sidechain allows compression to be driven from a dedicated source.
What rack format and audio performance does it offer?
This model occupies 1 rack unit. The frequency response ranges from 18 Hz to 22 kHz and the headroom exceeds +29 dBu over the 20 Hz - 20 kHz band. The noise level is below -90 dBu, with an input impedance of 10 kOhms and an output of 50 Ohms.
