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BigDWiz

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BigDWiz last won the day on March 24

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About BigDWiz

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    http://www.oldschoolstereo.com

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  1. Back when cheating was a good thing? Yeah, in the 90's, some organizations used 4 ohm stereo wattage to divide competition classes. How could you "cheat" the system? Get an amp rated for high current, low impedance operation. Today I'm going to discuss the Old School SPL challenge and the details. I'll also show a couple of (lame) SPL runs with a Lanzar 50c (50 watt) and Crossfire CFA-30HC (60 watt). This is all for fun, but feel free to join in by taking some of those old school amps off the wall and joining in on the fun! See more about Old School SPL Challenge: https://www.oldschoolstereo.com https://www.is.gd/osspl2019 Search for these amps for sale: Lanzar 50c: https://is.gd/lanzar50cebay Crossfire 30HC: https://is.gd/crossfire30hcebay See playlist of Amp Dyno Drag Races: https://is.gd/ampdynodragraces See my other videos on Old School Cheater Amps: https://www.youtube.com/playlist?list=PL6519F5277A57F8BA
  2. Back when cheating was a good thing? Yeah, in the 90's, some organizations used 4 ohm stereo wattage to divide competition classes. How could you "cheat" the system? Get an amp rated for high current, low impedance operation. Two shown today are the Lanzar OptiDrive 50c and Crossfire CFA-30HC. Both amps are from approx 1998 and are some of the most powerful sub "100 watt" amps ever made. Let's find out which one is king! Search for these amps on eBay: Lanzar 50c: https://is.gd/lanzar50cebay Crossfire 30HC: https://is.gd/crossfire30hcebay See playlist of Amp Dyno Drag Races: https://is.gd/ampdynodragraces See more about Old School SPL Challenge: https://www.oldschoolstereo.com https://www.facebook.com/groups/oldschoolspl2019/
  3. I go crazy finding mint flea market junk. Easy to find old, expensive amps in mint condition, but usually amps like this are beat up. I've got some strange obsession with them, not sure why honestly
  4. Today we look at the Kingwood RK-904 "1000 watt" amplifier I recently found. This is a cheap, Flea Market car audio amplifier designed to rip off the unknowing consumer. Sure, it looks like a Rockford Fosgate amp, but what's inside this beast? Let's take a closer look at the amp and try it on the SMD AD-1 Amplifier Dyno! Watch on YouTube in 4K UHD quality or embedded below:
  5. In a quest to find a powerful amp under $75 for the $150 SPL challenge, I came across this amp which seemed too good to be true. I've never heard of DTI, but this amp promises 2500 watts at 1 ohm, 14.4 volts at 2% THD. If true, it would be the best watt per dollar amp I've ever tested...but, is it true? Heck, even at 1/2 of rated power it would still be a supremely good deal. Let's take a closer look at the amp and try it on the Amp Dyno. Is it the deal of the century or just a bad joke? Time to find out... DTI MA2500D Amp: https://is.gd/dtima2500debay Savard Hi-Q 6.5" Subwoofer: eBay - https://is.gd/savardhiq65ebay Amazon - https://amzn.to/2X21no4 HiFiVega - https://www.youtube.com/HiFiVega 12V Talk - https://www.youtube.com/12VTalk Watch the video in 4K UHD quality or embedded below:
  6. Today we check out a 1997 Thump THA-2000 amplifier I picked up for cheap off eBay. I'll unbox, clean up, test the amp, try it on a subwoofer and more. This amp is a direct knockoff of the Phoenix Gold M series amps from the same time period, but does it perform as well? We'll find out and also check out the internals to see what makes it tick. Watch on YouTube in 4K UHD quality or embedded below:
  7. It's about time to show an update with the Savard HiQ 8 v2 DVC subwoofers. This sub offers dual 2 ohm 2.5" coils and 500 watts of RMS power handling. It appears to be a mini monster, but how does it sound? Let's take a closer look at the custom, slot ported box and try out these subs with some real power. I'll show SPL test as well as some flex with music. These subs are getting down! Watch in 4K UHD on YouTube or embedded below:
  8. Hello BigDWiz,

    Thank you for all the amp dyno tests and videos. It has been very educational and helpful to me while doing research. They are also entertaining, "Ya big dummy" that cracks me up every time. I am running 2 JL audio 12w6v3 that I've had for 2 years now on several different amps, from Pioneer GM-D9601 to 2 JL Audio HD 750's. I am waiting on a delivery of a Rockville Rxd-m5. I am curious to see how that sounds.  I also want to ask, "Sounds digital processors and digital active crossovers, do they create more bass without distortion? I know a little bit about them and how to use them. Other than using the sweep and width knobs, I see that they have volume knob. I am not sure if this is similar to bass boost/ distortion or not. The other benefit I see with using them is the output voltage is higher than my head units output voltage but I don't know if that would create more bass or sound " any information would be greatly appreciated. 

    Y'all have a great week,

    Stewart Kolsch 

    Screenshot_20190612-023704_Amazon Shopping.jpg

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  9. Soundstream introduced a new line of amplifiers for 2019 called the "Bass Extreme" series. There are four monoblocks and one four channel in the lineup. They all include a built-in bass processor and seemingly lots of power for the money. The one we are testing today is the top of the line model, the BXA1-10000D, claimed as 10,000 watts MAX. We all know there's no way you are getting 10kW for $200. The Soundstream website provides "RMS" numbers of 1400, 2100 and 3300 watts at 4, 2 and 1 ohm respectively. Let's take a closer look at this "10kW" amp and see how it performs. Make sure you keep watching all the way until the end of the video as I also test a Bass Rockers BR2000.1D amp Watch on YouTube in 4K UHD or embedded below: https://www.youtube.com/watch?v=_EdxB53zuqQ
  10. The annual Spring OSS Meet was held on May 18th in Wake Forest, NC. This video covers some of the day and also 3 demos from OSS members including fellow YouTube Star EXOcontralto! Such a fun day, thanks to all who were able to attend! Check out the Dark Audio Industries 12" subs: https://is.gd/darkai12 See cool old school stuff for sale at https://is.gd/legendsofcaraudio EXOContralto on YouTube: https://www.youtube.com/user/EXOcontralto HiFiVega on YouTube: https://www.youtube.com/user/hifivega
  11. This is not your father's Blaupunkt....only the name remains. We tested the "1500 watt" monoblock a while back and had lots of requests to try out the two and four channel models. I'm not sure why, honestly as these amps are horribly overrated and cheaply made. Oh well, enough talking, let's see how (bad) these amps perform... Tested are Blaupunkt 2-channel AMP7502 and 4-channel AMP1504 Watch on YouTube in 4K UHD:
  12. Thanks to Skip01 from EveryDay Audios for the tip about this Brand X amp for the $150 SPL challenge. It was available for a period of time as a refurb for $74.99 and I figured I'd pick it up to see how it would perform. First we'll take a closer look at the amp, then we'll try it on the Amp Dyno, finally put it on the (4) Blaupunkt 12's and see how it performs... Amp is Brand X XXL609x2HE and sells for $99 brand new. Amazing value, although overrated... Watch on YouTube in 4K UHD or embedded below:
  13. So right off the bat, I'll admit...I'm not an SPL junkie. I'm just a guy who loves audio and enjoys the idea of a challenge. I also thought it would be cool to share the idea of this challenge so other people could join in. TFade has been hosting the $150 SPL Challenge for many years and this is my first entry. Unfortunately, my vehicle is a Toyota Sequoia, not a CRX, so no way I'm getting 150''s here...but who cares, it will still be fun! Any tips or tricks, let me know. Also, join in if you can. See the rules for the Challenge here: https://12voltmag.com/2019-150-spl-challenge/
  14. I wouldn't say garbage, I've been hammering on it for the past 2 weeks and it's done well. Just wish they would've rated it 600/1000/1500 then it would be an easy recommendation
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