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BigDWiz

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BigDWiz last won the day on August 20 2017

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About BigDWiz

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    135db

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    http://www.oldschoolstereo.com

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    The Old School

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  1. Dat's one ugly dude!! First up in our 3-part series of Korean 3000-3500 watt amps are the Crescendo BC3500D and DC Audio 3.5k. We compare these amps for a specific reason and you'll see what I'm referring to in the video. I decided to split up the 5 amps into 3 different test videos. The Crescendo and DC are together in one test, secondly, I'll show the Skar SKv2-3500 and last, but not least, the Orion HCCA vs Sundown SCV. As you can see, this video alone is 20 minutes, one of my longest videos to date. I wanted to take time explaining the amplifiers more, thus the longer video.
  2. Thanks brother! I love playing with rare amps
  3. Sony made a BIG statement with the XM-2000R back in 1999. This amp was listed in Car Audio & Electronics for $4000! Let's take a closer look at the amp, some amazing installs using these amps and then test it on the Amp Dyno. Watch on YouTube in 4K UHD resolution or embedded below:
  4. Here we have John Enzweilier"s 1993 Chevy Silverado Ext Cab pickup with the 90's Rockford Fosgate equipment. John's truck has the following gear: Pioneer DEX-P8000R Head Unit (5) Rockford Fosgate Punch 200x2 Amplifiers (1) Rockford Fosgate Punch 400x4 Amplifier (8) Rockford Fosgate Punch DVC Special Edition 12" subs ESB Audio 8000 6.5" component speakers 3.5" JL Audio Coaxials 6.5" JL Audio Coaxials Stinger OFC Wiring / Distribution Note: this is not an SPL setup, just a fun old school install. Don't get too caught up on the numbers... See OSS Meets Playlist: https://is.gd/ossmeets Watch video on YouTube in 4K UHD or embedded below:
  5. See Shawn K's latest work of art in his wife's 2012 Acura TL. In this system, he integrated a low-powered, very high quality sound system into the factory head unit. With only 200 rated watts total and 50A of fusing, this is an impressive setup to rival some high end SQ cars. Watch as we show some impressive build pics as well as the final product! See other Shawn K Installs: https://is.gd/shawnkinstalls Watch on YouTube in 4k UHD or embedded below:
  6. BigDWiz

    Rockford Fosgate T1500-1bdCP Amp Dyno Test

    Thanks brother. Amp is extremely efficient at 4 and 2 ohms! I was blown away
  7. Ever heard of impedance rise (or box rise)? Amps like the T1500-1bdCP were designed to modify output to lessen the effects of this usually negative impacting phenomenon of subwoofers and amplifiers. In this video we take a closer look at Rockford Fosgate's Power Series 1500 watt amplifier and then try it on the Amp Dyno to see if this "Constant Power" technology holds up to resistive load testing. https://youtu.be/VKO_sWLsMhs
  8. IMO, it's tough to beat the Orion XTR-2500.1Dz for the $$. They are selling for around $350 or less right now at you'll get a solid 3kW at 1 ohm. HiFonics 3250 watts is around 2500. Remember, even if they say CEA rated, this only refers to the 4 ohm rating. You can see my test of the BRX3016 to get an idea of how these amps are "overrated". My video of the Orion XTR-2500.1D is the older model, the Dz has a few hundred more watts at 1 ohm.
  9. BigDWiz

    T1500bcbd

    The whining is most likely the transformer. I believe Rockford still repairs these. You can also check with TheAmpLab.net, those guys are good
  10. BigDWiz

    Xtr 2500.1 half ohm?

    I would not run the Orion XTR-2500.1Dz at 0.5
  11. I'm interested in that SD 20k too. Not sure if Steve has enough juice from the battery bank, may need the Tahoe's electrical to perform this test. We'll see...
  12. Power supply and output are run at near maximum. These amps are very sensitive to voltage and speaker load, but yeah, quite amazing to get over 3kW in an amp smaller than a piece of paper...I'm going to try this one in my car for a bit to see if I notice a difference in SQ compared to other amps. I only run a single JL 10W7, so not a ton of bass, but enough where I can notice subtle differences in the quality of the bass.
  13. BigDWiz

    Powerus amplifiers

    I was going to get one from the PowerUS US Distributor, but they don't have a website or anywhere to send people to other than a guy on Facebook. I told them I'd be willing to test, but didn't want to test amps nobody could get... Also, when you see 75% efficiency numbers for Brazilian amps, most of the time they are using high frequencies such as 1kHz to get that number. Testing these amps at 40Hz shows they are no more efficient than the half-bridge Korean or Chinese amps.
  14. Yes, time for another Brazilian amp! This time we will look closer at the SounDigital SD 3000.1D EVO II. I purchased the 1 ohm version and it is rated to deliver 3000 watts at 12.6 volts in a heatsink smaller than a piece of paper! Rated to deliver at 12.6 volts: 3000 watts at 1 ohm 1650 watts at 2 ohms Rating spec doesn't mention frequency, but I believe it is either 100Hz or 1kHz. Both of these would be "easier" on the amp than the brutal 40Hz test. Let's see how she performs... Watch on YouTube in HD or embedded below:
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