Just had a customer ring with a DN HD2500 and unfortunately it crashed on a song with 10 mins to go to midnight NYE. He had the Pioneer CMX3000 CD player as backup and unfortunately had two jingles cued up in both sides of that so it was of no use! On the Denon he faded from side A to B which started ok and then half way through that song side A suddenly started playing superimposed over track B despite the mixer being faded fully over to B! He said he had to waffle on the mic for a while which luckily he did ok.

Maybe the firmware patch will fix this?

AT 01:39 AM ?!?!?!?!




That of course depends which firmware version the user has. As you're aware, there have been 3 firmware versions for the Denon DN-HD2500 as, unlike some other companies, Denon DJ don't just release free firmware for patches, all firmware releases have also incorporated extra user features, such as keyboard/string search support, MIDI control of compatible PC software, access to the DN-HD2500 ultra high quality ASIO low latency sound card, and so on.

The current firmware version on the DN-HD2500 is V1200, and the owner can easily check in the Presets menu which version of firmware they have - If they have anything other than V1200, then them downloading the free V1200 enhancement firmware will be of benefit regardless.

Since the 2500 has separate audio outputs for the left and right decks, I'd be tempted to take a look at the mixer and the raw music files for rip integrity too - as there's no "both sides playing out through a single channel output" routing on the 2500. Even if the customer had activated the crossfade function during a fit of button stabbing, the two tracks would play from their respective audio outputs.


Either way, it's always worth loading up the latest firmware enhancements - always loads of goodies, rather than just background stuff.

Not possible... it must be user error

Seems unlikely & for many it's easy to be scathing, but can you be so certain? I could be wrong but I'd speculate that all audio routing in these units are software managed and signal output pairings are unlikely to be physically divorced as I imagine traditional twin CD drawer units to be, so conceivably something could go wonky ... Remember with the DN-S5000 Alpha Track facility: with a quick binary preset change you can choose for the Alpha track output be superimposed over the main channel line outs instead of its dedicated line outs, okay not exactly the same but what if something similar has happened here?

a currupt Audio file plus pushing all the buttons in blind panic i guess could mess things up but i tryied tonight pushing things at random and messing about generaly and i couldnt get my unit to do anything except play music they way it should...

Well when I say just I mean earlier this week! I hope you weren't suggesting I made it all up!



He was certain that the crashed A track started playing over the top of and half way through the B track hence his dilemma.

That wasn't why he was ringing...he just mentioned it to see what I thought. He'd actually got a lighting problem.

I'm not aware of what firmware updates there are for this, other than what's been mentioned on this forum. The only upgradeable Denon unit I have is my own personal DNX1500 and I get emails if there's an update for that.

Regarding the symptom not being possible, I suppose anything is possible these days the way the code is handled. I remember listening to our local radio station one night who use the multi-thousand pound Dalet media server suite linked to the DJ desk, and hald way through a track it started playing the previous track over the top and then superimposed over that a load of local advertising jingles etc. These are also normally fed to seperate channels on the mixer but the server had decided to ouput them all on the OP channel. The poor presenter couldn't get them all to stop for some minutes!