RME HDSPe MADI FX
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RME
https://www.rme-audio.de
info@audioag.com
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A "very high channel count" benchmark in RME's MADI ecosystem
Iconic of RME's very high-performance MADI solutions, the HDSPe MADI FX belongs to a range designed for studios, OB vans, theaters, and installations where stability, synchronization, and I/O density are paramount. This version stands out from previous MADI cards thanks to the Hammerfall Pro Audio Core, a modular architecture developed to handle a massive volume of channels while preserving RME's DNA: efficiency, reliability, and minimal latency.
Who is it for and what are the use cases?
This PCI Express card is aimed at sound engineers and integrators who need to centralize large audio streams in MADI, control multiple converters, and distribute return mixes without compromise. It is suitable for both multitrack recording and mixing in hybrid environments, with a key advantage: powerful stereo monitoring and internal routing capabilities sufficient to replace many hardware patch bays.
Massive routing, monitoring, and synchronization: RME's uncompromising approach
Hammerfall Pro Audio Core: more channels, less load, controlled latency
To maintain high performance despite the channel count, RME introduces a processing core capable of handling three times more channels than previous MADI generations, while reducing CPU load. The result: exemplary responsiveness, with buffer settings that can go as low as 32 samples on modern setups.
TotalMix FX: the studio command center
TotalMix FX transforms the HDSPe MADI FX into a complete routing matrix: creation of submixes, headphone distributions, DSP processing, and fine management of inputs/outputs. All this relies on a 42-bit internal signal router, designed to preserve precision during summations and complex routings.
Clocking and control: stability for MADI systems
With SteadyClock, Word Clock, and analysis tools, the card is built for long digital chains and multi-converter systems, securing the clock and facilitating diagnostics of levels and signal quality.
Technical specifications
| Compatibility | PC, Mac |
| Sampling frequency | 192 kHz |
| Max resolution | 24-bits |
| Headphone outputs | Yes |
| MADI | 194 input channels and 194 output channels |
| Optical MADI | coaxial converter functionality |
| Analog outputs | 2 channels (6.3 mm stereo jack, monitoring or headphones) |
| DigiCheck | measurement and analysis tool (UER R128 compatible) |
Questions frequently asked
How many MADI channels can the RME HDSPe MADI FX handle?
The card handles 194 MADI channels at input and 194 channels at output. This density meets configurations requiring centralization of multiple digital converters.
Is the card compatible with Mac and PC?
Compatibility is announced with both PC and Mac computers.
What are the maximum resolution and sampling rate?
Operation reaches 24 bits and up to 192 kHz. The buffer can be set up to 32 samples on modern configurations, according to the provided indications.
Can a headphone output be used with this MADI card?
Two analog outputs are available on 6.3 mm stereo jack, for monitoring or headphones. TotalMix FX allows creating sub-mixes and return distributions from the internal 42-bit routing.
How is MADI synchronization managed?
SteadyClock, Word Clock, and analysis tools facilitate clock management in digital chains. DigiCheck provides measurement and analysis functions compatible with EBU R128. The optical MADI link also includes coaxial conversion functionality.



