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About GMCtrk

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  1. Well, I've installed the alternator and I'm having 2 issues. 1, the alternator is not turning on for around 5 minutes after a cold start. Engine runs purely on battery until the alternator seemingly randomly turns on. 2, battery light keeps flashing in the dash. I have installed the supplied reclocking harness that mechman includes which hasn't changed anything. I also put on a gates HD green belt to ensure no belt slip was present. The only thing left I can think of is that the absence of the factory charging wire to the red junction box is throwing off a signal the pcm is looking for.
  2. 2002 tahoe, have mechman 320 alt. The charging post and electrical connector are in the opposite locations of the factory hookups - factory charging wire won't reach. Now obviously, running a 2/0 cable directly from the alt to battery fused. Question is, any need to make up a new cable going from the little red battery box to the alt?
  3. GMCtrk

    Setting gains on T2500 BDCP using output meter

    Just wanted to put a little update for you guys since I now have a DD-1. Based on the DD-1, the RF manual is incorrect. The red output bar does NOT indicate clipping. The 1% THD distortion light does not come on from the DD-1 when the bar first hits red. In fact, there is a fairly good amount of gain adjustment still there once the output bar hits red (+2). An interesting tidbit, all of my RF amps seem to make a very faint buzzing sound right before the DD-1 indicates clipping.
  4. GMCtrk

    Setting gains on T2500 BDCP using output meter

    Well, to my surprise a 0 dB 40 Hz test tone at 49/50 on my HU (max unclipped) maxed out the T2500 output meter with the gains all the way down. Guess I shouldn't be too surprised as the input sensitivity on the amp is listed as up to 4v. My HU has 5v preouts.
  5. GMCtrk

    Setting gains on T2500 BDCP using output meter

    Well, the DD-1 and CLEAN measure different things. The dd-1 identifies 1% THD whereas the RF detects clipping.Just happens that the Punch amps hit 1% THD just prior to clipping. I'd imagine using the output meter on the T2500 should be fairly safe. I did come across a 17 second youtube vid showing a DD-1 on a t2500 and the DD-1 was both positive and negative with the red bar lit up.
  6. Can't find the SMD DD-1 anywhere in stock. Currently running the Punch amps with the CLEAN system, essentially a built in DD-1. Anyone compare the LED outputs on the T2500 to distortion point on the DD-1 or clipping on an O scope? The RF manual says the Red bar (+2) dB indicates clipping. Thinking of just setting the gains to the orange bar with a -5 dB test tune.
  7. Hi, 2 RF T2 13s going in the back of a tahoe. Per RF, ideal box specs are 4.5 cu ft tuned to 34 Hz (per woofer). So 9 Cu. ft total net. I used the RE box calculator and came up with these specs. Is it okay if the port isn't L shaped? Should the port be moved to the center? The subs will be pointing up and port back. The 48" width and 20" height are max I can fit. The depth of the box is variable but I'd like to retain some trunk space. Any input GREATLY appreciated!