$6000 Amp from 2002 - ZAPCO C2K 4KW Overview and Amp Dyno Test [4K]

#Zapco #4kW #AmpDyno
Back in 2002, Zapco introduced the C2K-4KW which incorporated two C2K-9.0XD boards into a single amp chassis. The amp originally listed at $5999 USD and has become one of those unicorn amps for those of us who care.
The 4kW is rated to deliver:
600x4 at 4 ohms (or 1200x2 bridged at 8 ohms)
1000x4 at 2 ohms (or 2000x2 bridged at 4 ohms)
According to Zapco, over 5kW total power
Other videos of amps shown here:
Sony XM-2000R - • Who Knew Sony Made a $...
JBL A6000Gti - • World's Most Powerful ...
Phoenix Gold "The One" - • Phoenix Gold The One 1...
Rockford Fosgate Power 1000 MOSFET: • 1990 Rockford Fosgate ...
Soundstream MC500 - • 1989 Soundstream MC500...
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[@wal2]

*Other videos of amps shown here:* Sony XM-2000R - kzbin.info/www/bejne/oJPcgJmsnJl5mKM JBL A6000Gti - kzbin.info/www/bejne/Z4jTm51soNR5etE Phoenix Gold "The One" - kzbin.info/www/bejne/hp2We4dvg5aahtE Like these old school amp videos? Support me for more like this. www.patreon.com/OldSchoolStereo Shop for Down4Sound Amps: is.gd/D4Samps Shop for Savard Hi-Q Subwoofers: amzn.to/2Nh1qcf Check Out My Main Channel: www.willistonaudio.com SMD / D'Amore Engineering Amp Dyno: goo.gl/sJTcf7 XS Power D1400 Batteries - amzn.to/2BPFCKW XS Power PSC60 Charger - amzn.to/2CHGcfs Fluke 1000A AC/DC Clamp Meter: amzn.to/2Rw5WDA Handheld Dyno: amzn.to/2u2EgKV My Favorite Screwdriver Kit: amzn.to/2x0VzcE _DISCLAIMER: This video and description contains affiliate links, which means that if you purchase from one of the product links, I may receive a small commission. As an Amazon Associate I earn from qualifying purchases_

[@StockA4]

We had a blast playing with all this stuff! The big C2K’s (9.0, 4.0) will always have a place in my heart. I absolutely loved running that pair.

[@wal2]

Yessir! We shall do it again 👌

[@aracelyaguilar4844]

Thats the amps i used i had the sx-sL eq also with that silky smooth volume knob. And i had the vfd display for the 9.0 . 9.0xd was pushing 2 Crystal CmpX2 subs.

[@TriptoCo]

Thank you for reviewing Zapco! I've owned them since the 80's. Worth every penny! Some of cleanest amps ever. Holds true to this day. THD was always sick!

[@wal2]

👌😬👍

[@joseolcrespigonzalez1034]

I've had this idea for a while and maybe you're the one that can test if it's possible hahaha. Could an Amp be used as a power inverter?? If you feed a signal of 60 hz and play with the gains until you get 110 volts, could you power house electronics?

[@wal2]

Yes and I have a video planned showing this 😎

[@envisionelectronics]

Sure can!

[@SweetSounds]

Just came across this video. LOVE IT! Bunch of fun facts on these amps. Back in the early 2000's bass competition scene, we ran an extensive amount of Zapco amps. In fact, we had (28) c2k-9.0's come in on ONE purchase order in 2001. Six for our Team Sweet Sounds CRX (running 2 - triple coil custom made DD 9515), 8 for Dan's Jeep (which burned up in a fire!), 2 for Matt's CRX and 10 for Ryan's Blazer plus a few spares. That's still one of the largest purchase order's we've made in 30 years lol. We set many world records and won a few world championships with those amps. With the seemingly tightly regulated power supply in these amps, voltage drop wasn't too much of a concern as long as you could supply the current for them. Stinger AGM batteries were our choice at the time. We could routinely pull 300A of current on each amp and with some box tuning, even pull 400A on occasion which was crazy at that time. Tuning a bank of these amps was incredibly easy as the precision components and gain setting adjustment made every amp nearly perfectly identical and since the gain was "set", it never varied after the original adjustment. Great for competition. Early when the amps came out, they didn't like low loads and required a couple of surface mount resistors to be soldered onto the board so they didn't go into protect so easily. My early years of modding PlayStation boards came in handy at that time. When the 4KW was first released, Zapco sent me the first 3 UNITS ever made. In fact, the first 4kw's weren't amps at all, they just sent the bars and end plates to modify the 9.0's into 4kw's for use in dBDrag and we had them before anyone else in the world...arriving just a couple weeks before World Finals if memory serves. Some time later after we had mostly exited the competition scene, Michael Müller aka The Big Oki from Europe was on a tour of the USA and he stopped by our store in MN and I gave him the 4kw pieces for his Zapco collection and he even wanted me to autograph them. I imagine he still has them. He had 50 of them last I heard. So many memories surrounding those amps. Those were good times. Amazing amps! Thanks for putting up this review.

[@SteveSega]

Wow! It was available in 2002, that answers the question from a previous video, the comment section was trying to determine what year those came out, most were saying 2004-2006 range. We were all wrong, it was 2 years prior to my guess.

[@wal2]

Could have still been available in that range

[@SweetSounds]

We received the very first three available shortly before World Finals in 2002. I mentioned in another post, those three came as "kits" without the amps. We had to add two 9.0's into the kits to make the 4kw's. Good times!

[@Thumper68]

Well Tony D showed his amp well over 100% efficient few days back…he’s trying to make a blackhole and suck our universe inside out..

[@wal2]

His amp is different, he uses supercaps for reserve

[@Thumper68]

@@wal2 yeah pretty cool design.

[@chijiokepenny2100]

I have several c2k amps in my stash!! (9.0 2ohm version, two 4.0, two 6.0, a 2.0 and a 1.0) . I also have a zapco dc1100.1 and and iforce i-1200.

[@Trunks9us]

Williston where are yall located at? I know 9.0s can put out alot more than that. 3k - 3500rms. Idk if its the settings or the amp or the amp input voltage you have. If you are in texas I would like to stop buy and test all 7 of mine to see the numbers lol I have 2 ohms and 4 ohm versions.

[@96kylar]

My boy Brent Leavitt,.. with his drool face.

[@wal2]

Yeah he chillin’ 🤙

[@mikewhite4541]

I love all the old school amps speakers installs everything. Keep it up.

[@wal2]

Thanks for watching and commenting!

[@bobsyouruncle8052]

in 2000 i had a zapco/jl system in my f 150 2 jl w6 15's and 3 jl w6 12's playing off a zapco ag1000 stereo on the 15's bridged on the 3 12's hag a zapco ag 750 on the highs zapco sp 7 in the dash with a jvc head unit it was clean and loud , i had some cadence sweet poison amps few years later that to me sounded just as good . old made in usa hard to beat

[@lawbadman]

Bro!!!! you have an Extras channel and didn't tell me!!!???

[@lawbadman]

Subscribed immediately! lol

[@wal2]

An extra video every week!

[@K-Effect]

Awesome! I always like some good Zapco content!

[@wal2]

Yeah boi!

[@kswis]

I'd say good grief that's too much cheddah but, damour has his 1500X4 for like $8400 (I think) both some of highest end of high end amps available. Thanks for showing us, another well done review on an awesome amp

[@wal2]

Yeah crazy how much some of these amps cost!

[@steve390gold]

I used to run 4 zapco 9.0 on a pair of DD 9915 when I competed back in 2003. I still have two of them and I adore both

[@wal2]

Awesome 👏

[@troyhooper6896]

Should have put 16v to that monster ..I have 2 6.0s 2 4.0s and a 3.0

[@drewcrew2101]

Grew up in Stockton about 30 miles from Modesto back in the 80's and all the best systems had zapco back then. Always loved the PX so I got a SP4 years ago with reference amp. Still going strong after 17 years.

[@wal2]

👌😬👍

[@ThomasShelby-uq8cz]

Damn, this is one amp I really would have loved to see the actual amp draw and good voltage being put on it⚡️😬😔 Still great content as always 👌🏻 though.

[@wal2]

Yeah I took this vid over 4yrs ago and didn’t have the remote clamp display then

[@logiticalresponse9574]

@ 1:21 you pronounced chassis wrong . The correct pronunciation of chassis is. chassis . So next time you say chassis , you can say it like chassis instead of chassis. . . . ...chassis 🥳😎😅

[@wal2]

🤦‍♂️

[@iblameshanemane9204]

ive got some the older zapco ag series amps still got two of the 1ks a 500.4 and a 200.2 from a old old build had four jl fifteens on the two 1ks in a wall in a jeep Cherokee the 200.2 is from my first system ever had two 12 inch pioneer thunders sealed box on the zapco in a grand prix 87 model lol loved that amp

[@wal2]

Awesome 👏

[@Rchan925]

I remeber when mac dre use to talk about zapco back in the 90s in his songs

[@wal2]

👌😬👍

[@satyavratadas1640]

As well as E40, Nickatina and plenty of other California rappers

[@beefysghost867]

Big d legends of car audio guy always has some bad ass stuff for sale, I missed a set of hcca62 component he had for sale, I am thinking about getting the fusion Jonah lumo components he has. But you wouldn't happen to know anyone that has a set of the hcca component would you

[@wal2]

I don’t, sorry

[@lee28.78]

best sq amps

[@wal2]

😬👍

[@georgeogrady449]

Cold full sound warm loss bit sound

[@luinhaden]

too bad you didn't have the 1ohm version.... on a good day if you slowly went up on volume you could run the 1ohm version at .5 ohm 🙂🙂

[@wal2]

😬👍

[@Jason-zh7wo]

Crazy 😀😂 and the 26kW 😂 when i had amps installed in my car 20 years ago i just had a 10inch kicker square sub powered by a rockfordfosgate amp i think it was rated 150wrms and a 4channel RF amp running door speakers, even that was loud enough for the world to hear around me 😂😂

[@thatunknownguy2680]

I'd like to hear what the test tracks sound like. I think that would give us all an idea of what is actually going on during the test.

[@wal2]

I showed this in the Orion XTR2500.1D video

[@thatunknownguy2680]

@@wal2 I'll check it out. I've probably seen it, but I can't remember.

[@wal2]

The certified and uncert tests are just tones that ramp from -30 to 0dB (1kHz or 40Hz). The Dynamic tests are pulse tones

[@littlejln213]

I have a C2K 4.0 in the box.

[@tallywhacker1]

I remember back in about 1998, the PPI PC21400 was the bee's knees. Cleanest sounding amp ever!

[@ehrenkrause9861]

Aw snap. I just commented about this on your other video 😂

[@wal2]

Ha it’s all good

[@justinhiggins2210]

I was thinking these amps used the tripath chip. I think they even called it a class T design.

[@wal2]

I think you’re envisioning another amp. These are not Tripath

[@justinhiggins2210]

@@wal2 ok, but didn't Zapco make some that were tripath. I thought I had did some repair work on some that were. Maybe I'm mistaken.

[@justinhiggins2210]

@@wal2 c2k 9.0xd. I think it was.

[@craigengelman4534]

zapco ftw !

[@wal2]

👌😬👍

[@georgeogrady449]

Low heat more the sound

[@TheSFFV]

🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤🤤😴😴🤤 They look so nice! Zapco is located 80 milea from me.

[@wal2]

Awesome 👏

[@davidfromamerica1871]

Zapco made great stereo amps back in the day. I also looked the McIntosh stereo amps. I decided on all JLAudio, amps, speakers.

[@wal2]

😬👍

[@bennyblanco14]

You picked jl audio over zapco and McIntosh? Wow

[@Bob_Smith19]

@@bennyblanco14 money talks and there was a big difference between those three.

[@JaredElliott1]

Some ppl likes they amps THICCC YO!!!!!

[@wal2]

🤣👍

[@hksp]

test something similar looking like trutech sledgehammer

[@wal2]

Here comes da Hamma

[@thomasbradian6367]

$12,000 for what!!!! I can get two taramps 30k for less than half that price, and slap just as hard if not harder

[@wal2]

20yrs ago there was no Bass 30k. This amp was out in 2002

[@thomasbradian6367]

@@wal2 I really was referring to the 2016 version, but I have a question for you , a few days ago I was just looking at the amp rack( nothing like you have, but I have around 15 amps I collected over the years, and most of them i have never hooked up because you know how it is when you go to dp sound offs, someone always selling old amps, but anyway I looked at my Mtx tc 400.4 and see that one of the kids stuck a pencil in the Rica's and pulled out the plastic insert, so I pull it off and fixed it, but when I hooked it up I couldn't believe it, 400 Watts of class ab sounded ( no exaggeration) 6db louder than my eclipse 500 watt class d. I don't think I'll ever run another class d amp ever again, because every class d amp I have never sounded like my first real system and that was 2 15's kicker gold letters 1992 on a kenwood 921 ( I still have one) and a Mt blue thunder full range box with two 15's 4 5in midranges and two horn tweeters on a sherwood Bp 240 ( I have Bp 180, wish I could find a Bp 240) I guess its true what they say, no replacement for displacement

[@donearl6675]

😲😲👍❗

[@chuckschob107]

You should try to find like 2 or 3 of the smallest amps next

[@wal2]

I have older, interesting amps coming

[@TheLassenman]

That is an real beauty of an amp

[@wal2]

Monsta old skool

[@crazy8sdrums]

Legendary!

[@wal2]

👌😬👍

[@mryang3644]

.. Soundstream even had a thick one if their own too.

[@wal2]

Tarantula

[@TheeMissingLinc]

Chass- isss? It's pronounced Chass-eee

[@wal2]

🤷‍♂️

[@happyrootsfamily1276]

Zapco Modesto

[@wal2]

👌😬👍

[@Trunks9us]

I have a total of (7) 9.0s and one of those is a 4kw loves these amps solid amps

[@danletter9357]

Back in the early 00’s there was a guy with a 12 cylinder BMW 850i with a full zapco system I was envious of. One of the best builds of that era. Very classy.

[@wal2]

👌😬👍

[@WifeBTR123]

What's the max power the amp dyno can..uh dyno?

[@wal2]

15kW at 1 ohm and up to 24kW at 0.5….providing you have the electrical to support an amp that large

[@WifeBTR123]

@@wal2 cool, thanks!

[@ahberlowkz852]

I just bought a fridge, stove , microwave, washer and dryer and it came out to less than the price of that amp new. That's just crazy.

[@wal2]

👌😬👍

[@FATHERSOFBASS]

Nice oldschool stuff

[@wal2]

Yeah boi

[@jdizzle3740]

This is a beast of an amp

[@wal2]

😬👍

[@CarltonRoberts]

Thanks for making & sharing 👍 this Awesome Amplifier....

[@wal2]

Thanks for watching and commenting!

[@ehrenkrause9861]

I forgot that amp really did well. Looks complicated to set up. ☺️👍

[@wal2]

👌😬👍

[@bennyblanco14]

Too everyone who says Zapco used to be good....FIRST OFF, UNLESS YOU OWN A NEW ZAPCO FROM THE AP SP OR Z series you can't say that the old zapco was better.... The new zapco high end line blows everything they did in the past out the water.... Zapco has won so many championships and is used all around the world ..don't sleep on zapco

[@wal2]

😬👍

[@satyavratadas1640]

You have to understand as well, that there are car audiophile purists who are devoted to old school car audio. They "everyone" are referring to the true Zapco that holds the original Zapco name as Zeff Advanced Product Co. Only the amps that were design by Robert Zeff in Modesto California and assembled in USA. Im a local to this area of California and these old school Zapco amps are highly sought after by the SQ car audio enthusiast of this area. It is said that these Zeff amps hold the true essence and sound quality of what is known as old school car audio. This is only a slight glimpse on what these people are referring to here with the old vs new Zapco name. Robert Zeff still designs amps for Arc Audio which headquarters happened to be located in Modesto California.

[@iceman45ification1]

I don't know why, but, I always felt like this amp was a direct competitor to the Tru Technologies "Hammer", although both have different topologies. Nonetheless it's a beast of an amp. Great video BigD!! 👌

[@wal2]

That is one I’d like to check out sometime

[@bennyblanco14]

I have a tru tech hammer H1 .... It's definitely a beast

[@iceman45ification1]

@@bennyblanco14 how I envy you!! Lol

[@chijiokepenny2100]

I had two Tru Technology Sledgehammers on six Image dynamics idmax 12's and a T03 4.150 running two sets of the Polk SR6500 (I still run the Polks in service) in my Tahoe

[@iceman45ification1]

@@chijiokepenny2100 bet that sounded amazing. 👌

[@williamjames6967]

Zapco at there height and ran the game for years I was a dealer from 2005 to 2012.. best amps ever built imo

[@wal2]

👌😬👍

[@basshead30]

👍👀👍

[@wal2]

😬👍

[@hondapilot73]

I was sponsored by Zapco in 1991. In my opinion, it was and is the best audio I've ever owned and used

[@wal2]

Awesome 👏

[@djbillye4943]

That 26k amp dough.now that's an amp.would like to see what it can do.🔥🔥🔥

[@wal2]

More power than the Dyno can measure most likely

[@stevel.2759]

Oh heaalll yeeaaahhhh

[@wal2]

😬👍

[@Thumper68]

That’s 2 chains favorite. 2 AMPS!

[@wal2]

😬😬

[@ericvest7279]

Iwantfreestuff

[@wal2]

🤦‍♂️

[@kitcat2559]

I wonder how much power it would ha be now that you have the lithium bank and more power to be able to do both amps, or would it still not be enough to handle both amps at the same time? Or would the dyno even handle them both at the same time I wonder?

[@wal2]

Oh yea, we can handle this amp and much more with the LTO bank. I’m stable at 14.2V at 10kW now. The amp isn’t here though, so we can only assume it’s 2x what you are here

[@scottiffanimccord1509]

Thx D.

[@wal2]

Thanks for watching and commenting!

[@EvanField6380]

Looks thick like the Incriminator split force amplifiers

[@wal2]

Yeah sure does. These used duplicate boards, the Incriminator uses different sized boards. I have a video coming soon on one and will talk about it more

[@lucaslong5368]

Wow! What a treat! These amps were the hot stuff when I was coming up in the 90's.

[@wal2]

👌😬👍

[@calvinevans8305]

It was so efficient because it has a mini flux capacitor built in. Lol

[@wal2]

I think Doc Goteem!

[@HifiVega]

That was the best weekend ever!

[@wal2]

Word ☝️

[@warpedhifi1]

Has anybody ran one of the Orion 97 concept amps on the Amp Dyno? Or would it be possible?

[@wal2]

Yes I did when I first got mine. Didn’t make a video. I’ll bring it back out sometime

[@warpedhifi1]

@@wal2 Sweet!! Would love to see it sometime. :)

[@rlg222]

Interesting Zapco Amp...

[@wal2]

Sho iz

[@israeljarvis8086]

You have a great amplifier collection!

[@wal2]

Not all mine and some are sold but thanks!

[@killernukem5914]

That amp is nuts love it

[@wal2]

Thanks for watching and commenting!

[@chris.o]

Beautiful amplifier

[@wal2]

👌😬👍

[@tatialo37]

Cool amp!!!

[@wal2]

Thanks for watching and commenting!