Dsp?
Road Captain
Joined: Nov 2009
Posts: 646
Likes: 61
From: Raleigh NC
I can break it down from a rookie's perspective. One of the pro's can fill you in on the rest. The DSP is a simple install. Same as an amp. It has inputs that come in directly from the head unit. On the Rushmore HU, there is a ton of sound processing built into it with their Boom software. The signal you get from the Boom HU is not a pure and true signal. It is one that has been massacred by Harley to make sure their speakers don't blow. The DSP takes that signal and "processes" it into a flat and pure signal. At that point, the signal you send to your amps is one that is genuine. This is where it gets tricky. There's a LOT of settings you can use to get the right tune. You are able to use your laptop to set crossovers, equalize the curve at different frequencies, increase or decrease output power to the individual channels. This portion of the DSP is what separates the men from the boys. I fall into the "boys" camp. Learning how to set the software and calibrate your system requires some knowledge and expertise. I have neither. Luckily we have dudes on this forum who are willing to help out when everything goes down the crapper.
What I can tell you is this. If you can set, or find someone to help you set the DSP calibration for your setup, it is amazing. The difference between a rookie like me trying to set it up versus someone who knows what their doing is night and day. When Slye sent me my file back to load up, it sounded like I had all new speakers and amps. When I used mine it sounded pretty crappy. So that's my .02 on what a DSP is and does. Now someone can tell him what it REALLY is and does.
What I can tell you is this. If you can set, or find someone to help you set the DSP calibration for your setup, it is amazing. The difference between a rookie like me trying to set it up versus someone who knows what their doing is night and day. When Slye sent me my file back to load up, it sounded like I had all new speakers and amps. When I used mine it sounded pretty crappy. So that's my .02 on what a DSP is and does. Now someone can tell him what it REALLY is and does.
Ultimate HDF Member
Joined: Mar 2015
Posts: 6,446
Likes: 873
From: TEXAS
Originally Posted by 06Ultraman
unless you know exactly what Hartley does to the frequencies and amplitudes no dsp add on can return it to a pure signal... just what might sound good to your ear. That is why I was hoping someone had used a frequency analyzer on the head unit and on a known input signal.
There is a MASSIVE peak at 80hz then another peak at 450hz then a crater at about 4000hz.
We are damn near 5 years into this Boom box so this really is not uncharted territory.
T.
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