Yamaha DME24N
A rack-mounted DSP box that promised to replace a wall of outboard gear, if you could afford the network around it.
Overview
The DME24N is the smaller sibling in Yamaha's DME series of programmable digital signal processors. It's a 24-channel I/O unit built around Yamaha's 96kHz DSP processors. It never sat in a home hi-fi rack. It lived in install racks, touring amp world, and fixed-installation sound systems, where somebody needed to route, EQ, delay, and crossover a pile of channels without dragging a van full of analog outboard along. Yamaha positioned the DME series as "the power of Yamaha digital technology harnessed into the world of programmable black boxes," which is about as honest a description of a DSP engine as marketing ever gets.
The channel count is the headline: 24 channels of I/O in the DME24N, scaling up to as many as 10 of Yamaha's newest 96kHz DSP processors inside the box. That's a serious processing budget. It's the reason the unit found its way into installations where a fixed hardware chain would have been bulkier and far less flexible.
Connectivity is where the DME24N shows its install-market DNA. Control comes via Ethernet, CobraNet, USB, RS232/422, or MIDI, and the unit has cascade ports, GPI, and Euroblock connectors for the fixed-install crowd. Four models of remote control panels were offered for the series, which tells you Yamaha expected these boxes to disappear into equipment rooms and be run from a wall plate or a laptop rather than a front panel.
Integration with Yamaha's own consoles was a selling point from the start. Mix (2004, p.5) noted that new software allowed direct control of crossovers, EQ, and delays from the PM5D digital mixing console. For engineers already working in the Yamaha ecosystem, that meant the DME24N's processing could be driven from the same surface as the mix. The same coverage described the unit as a programmable processor rather than a fixed-function box: an "intricate network of DSP" with "robust intuitive software," in the magazine's phrasing, built for "true integration of audio and control."
The DME24N also stayed relevant long enough to pick up third-party support. Waves' WSG-Y16 I/O card, advertised in Mix (2010, p.11), brought SoundGrid processing to a list of Yamaha consoles and processors that explicitly included the DME24N and its larger DME64N sibling. It gave 16 channels of low-latency processing using Waves' reverbs, equalizers, compressors, and delays, run directly from the Yamaha hardware. A unit only gets third-party card support if enough of them are out in the field to justify the development. By 2012 the DME24N was still appearing in Yamaha's own product announcements, per Mix (2012, p.66).
The DME24N is not a collector's piece the way a CS-80 or an NS-1000M is. It's a working tool, and most surviving examples have spent their lives in racks. Condition varies wildly, and the software ecosystem around them (the control applications, the remote panels, the host consoles) matters as much as the hardware itself. Buyers should verify that a unit's firmware and control software are obtainable before committing, because a DME24N without its configuration environment is a very expensive doorstop. The fact sheet carries no production years, no original price, and no dimensions or weight, so treat any listing's claims about those with caution until confirmed against the unit's own documentation.
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