Thanks for the review. Money, time, and had to hack on the pods, props!
Ive always had a uneasy feeling about those DB speakers for some reason. Only thing I know of was the guy pushing them on the other site. Seemed strange to me. True test will be the road trip. You might be able to run the volume lower and not tax the amp as much at highway speed, which is a good thing. Or it might be so bright they will give you a headache, that's what the Kappas did to me.
Here is the question though. If the DBs get the boot, what goes in next since you already have made room in the pods???
- I had about four hours of road time with the DBs this weekend. Knowing that I was going to get a decent ride in with them on Saturday, Friday afternoon I pulled my fairing and did some additional tweaking. Thinks I changed;
Reduced gain to output no more than 200W per channel to each speaker. It was previously hovering around 230W per channel. The DBs are rated at 175W RMS with a claimed peak RMS capacity of 400W. There is no way the DBs could handle that peak unless they were crossed at 500Hz.................... Reducing the gain and increasing the crossover frequency using the HP filter on the AMP yielded acceptable improvements (in my very subjective opinion). So here's my power and frequency journey;
Start: 230W at 90Hz - early distortion onset, especially playing Staind "Falling" and DJ Snake & Lil John Turn Down for what
Next attempt 225W at 100Hz - Turn Down for What cleaned up, but Falling was still failing
Last attempt 200W at 120Hz - All sources and tracks sound pretty good at highway volume. Mostly loud enough for my entire library from the real old stuff, to the newest stuff. I verified best I could the frequency setting using various test tones, music, ears, my o-scope and the RTA app on my phone. As you know, without a lot of professional gear, knowing the exact crossover points that you've set your AMP to isn't real scientific. On the DA Micro4v2, 120Hz seems to correspond to the 2PM position on the frequency pot.
In the end it's been a bit of a trade off. Higher volume than the Hertz, but you're trading SQ and frequency range. The Hertz could easily play at the same power level down to 90Hz or so, but of course the Hertz aren't as loud.
For frequency analysis this is what my ears tell me;
Putting head unit at 1/4 volume;
1 Khz (we'll call this the baseline) = full volume
120 Mhz sounds about 80% as loud as 1 Khz
110 Mhz sounds about 60% as loud as 1 Khz
100 Mhz sounds about 40% as loud as 1 Khz
80 Mhz sounds about 20% as loud as 1 Khz