TonyD'Amore

Changed my mind when I saw the evidence lol. Now I can do what I wanted to do when I originally thought it up, which was to put 2 caps on each of my amps. I think my thread about that is still around... We did see that they had to be as close to the amplifier as possible.

yes 180 Amp

Another big battery would only help on the runs where the voltage dropped below 12.6 volts. At least, that is what I'm guessing.

check out the capacitor testing videos we just posted, we run the amp in many configurations

In all seriousness though, hopefully your favorite local install shop will pony up for one and have "dyno days" where people can bring their vehicle in, strap it down to the dyno and find the weak links in their system. We really believe this is going to be a great tool for dealers to show people why REAL copper wire is more expensive, why REAL amplifiers are more expensive, etc. The old adage "you get what you pay for" is pretty accurate when it comes to mobile audio. Of course there are always exceptions to the rule, but when a 50 foot spool of 1/0 awg wire only weighs 10 pounds, something is horribly wrong.

Just clamp and divide by 3 lol

Single group 49 absorbed glass mat

No testing with an additional battery, but if you look at the numbers it would only help in the situations were the voltage fell below 12.6V, since another battery is just a load to the alternator over 12.6V. We have an additional group 49 AGM battery all charged up and ready for testing. May do some dyno runs on Monday.

Alright guys, I am all done hearing about "clamping". The numbers generated from that are so far off and don't account for many factors. I just did a quick little dyno run vs the clamps tonight to show how drastic the error is. If you want to know more detail about why clamping doesn't work, there is another video on the D'Amore Engineering youtube channel that describes the problems in detail. Clamps vs Amp Dyno vid here: Detailed explanation of why clamping is wrong vid here:

Tony Candela of CE Auto Electric Supply, Juan Rodriguez and I decided to do some testing with the AD-1 Amplifier Dyno to see what effects adding a capacitor to your system does. We did over 60 Dyno pulls with a Rockford T2500-1bdcp, without a capacitor, with a 1 Farad electrolytic capacitor (a real 1 F), and a 100 Farad carbon supercap. Test vehicle is a 2013 Jeep Grand Cherokee, 5.7 Hemi, 180 amp alternator, single group 49 AGM battery, all wiring 1/0 AWG copper. We tested each possible combination 3 times just to make sure our numbers were consistent, which they were. Video part 1 is continuous power testing, video 2 is dynamic burst power testing. Enjoy!!! Video part 1= Continuous power testing (uncertified dyno test mode). We do 4, 2 and 1 ohm dyno runs with no cap, 1 F cap, and 100 F cap. All tests in this video were made using the Uncertified Dyno Mode which is a continuous sine wave. We test a Rockford T2500-1bdcp in car, with no added capacitors, then with a 1 Farad aluminum electrolytic capacitor added, and then with a 100 Farad carbon supercapacitor added. RESULTS: No Capacitor: 1499 Watts RMS @ 13.07V into 4 ohms 2059 Watts RMS @ 11.84V into 2 ohms 2366 Watts RMS @ 10.83V into 1 ohm With 1 Farad Capacitor: 1489 Watts RMS @ 13.10V into 4 ohms 2024 Watts RMS @ 11.90V into 2 ohms 2358 Watts RMS @ 10.87V into 1 ohm With 100 Farad carbon supercapacitor: 1531 Watts RMS @ 13.13V into 4 ohms 2208 Watts RMS @ 12.25V into 2 ohms 2606 Watts RMS @ 11.30V into 1 ohm Engine RPM held between 2200-2500 for all tests. 1F capacitor didn't add any power on the continuous RMS test, actually lost a few watts probably due to the increased number of wire connections. 100F capacitor added more than 10% more power on the continuous RMS test Make sure to watch part 2, dynamic power testing (burst power). Hint: The results are different! --------------------------------------------------------------------------------------------------------------------------------------------------------- Video part 2= Dynamic burst testing (Dynamic Power Dyno Mode). We do 4, 2 and 1 ohm dyno runs with no cap, 1 F cap, and 100F cap. All tests in this video were made using the Dynamic Power (Burst) Dyno mode which is representative of musical peaks. We test a Rockford T2500-1bdcp in car, with no added capacitors, then with a 1 Farad aluminum electrolytic capacitor added, and then with a 100 Farad carbon supercapacitor added. RESULTS: No Capacitor: 1543 Watts RMS @ 13.80V into 4 ohms 2550 Watts RMS @ 13.32V into 2 ohms 3154 Watts RMS @ 12.76V into 1 ohm With 1 Farad Capacitor: 1613 Watts RMS @ 13.98V into 4 ohms 2666 Watts RMS @ 13.60V into 2 ohms 3426 Watts RMS @ 13.35V into 1 ohm With 100 Farad carbon supercapacitor: 1620 Watts RMS @ 13.95V into 4 ohms 2616 Watts RMS @ 13.65V into 2 ohms 3260 Watts RMS @ 12.91V into 1 ohm Engine RPM held between 2200-2500 for all tests. 1F capacitor didn't add any power on the continuous RMS test, but it OWNED the Dynamic Burst testing!! 100F capacitor added more than 10% more power on the continuous RMS test, but less than 5% on the dynamic burst test.

Thank you! No, I was writing C+ code and making videos lol. Happy early B-day!

Thank you! I'd say that is likely, not as a replacement to the classic DD-1 though.

I changed a 6 foot piece of 4 awg to 1/0 awg from distribution block to amp and gained around 100 Watts on the 2 ohm run!! That is the stuff dealers need right there.

Thanks Skullz, yeah it has been some work for sure.

:ninja:

Thanks Larry

We've got the AD-1 Amp Dyno very close to production trim. Here are a couple of demo videos showing some of it's capabilities. Currently the AD-1 Amplifier Dyno is the only self contained test system that can measure RMS Continuous Power and Dynamic Power of both Full Range and Bandwidth Limited (subwoofer) Amplifiers in the world....and it does it in YOUR CAR! Please enjoy these two videos. The first video demonstrates the gain setting capability of the newly developed DD-1+ technology built into the AD-1. DD-1+ allow the user to make variable gain overlap settings in 1dB increments, even if the system is dirty and reads over 1% Distortion BEFORE clipping. The AD-1 amp dyno's DD-1+ technology can also be used in EXACTLY the same manner as the classic DD-1 if the user chooses. Link below The second video demonstrates the dyno loading and precision power measurement technologies in the AD-1 Amplifier Dyno. Learn about Certified Dyno Mode (which the Jeep's system failed due to headunit's noisy output), Uncertified Dyno Mode (which is the backup in the event you run into a problem like we did), and Dynamic Power Mode which measures power output during a very short term "bursted" signal. This is the industry standard for measuring "Dynamic Power" or "Headroom". Link below

Should be there tomorrow!

Chris, I will check with Juan in the morning, but I'm pretty sure it has already been taken care of and is on it's way to you.

You guys are making me feel old. Mine was the TRS-80 coco (color computer), 0.89MHz Motorola processor, 16k RAM, external cassette tape drive, TV for monitor. In 1980 it sold for $500. That would be about $2000 today. By comparison the processor in the IM-SG runs at 20MHz has 16k Flash memory, costs $5 and is the size of a dime.

Upgrade your DD-1, DD-1HV, CC-1, or IM-SG today with one of our RB-2 or RB-4 rechargeable upgrade kits! Guys we've tested several types of rechargeables, and several different chargers. We have put together 2 different kits that will perform great in our tools. Especially the hungry IM-SG. Upgrade today! Free shipping within the contiguous US http://damoreengineering.com/batterykit.html

Team D'Amore Engineering down

Yes

VM-1 Page added to website along with Owner's Manual here: http://www.damoreengineering.com/vm-1.html

lol....... negative