With Tsunami capacitors, you'll never have to worry about getting enough power to the amplifiers in your high-end mobile audio system. This Litewave Series 2-farad cap stores up a reservoir of power, and delivers it exactly when your amps, subs, and speakers need it most.

The blue LCD meter shows you just how much juice your cap is putting out, while blue flashing LEDs add a cool look to your installation. An audible warning lets you know if the voltage is too low or too high.

Product Highlights:

  • 2-farad capacitor (24-volt surge)
  • blue LCD meter
  • flashing blue LEDs
  • audible low/high-voltage warning
  • 3-15/16"W (3-3/4" without bracket) x 9-3/4 x 3-3/4"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Tsunami Litewave Series PP92UM-CAP Reviews

Average Customer Review:

8 reviews
Review this product
Great Gear Giveaway

Submit a review and then enter to win a $350 rewards card


Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

As Expected

Written By Scott S, Honolulu, Oahu, Hawaii on Wednesday, July 17, 2013

Crutchfield Customer Review (What's this?)

As expected showed up very quickly, double-wrapped extremely securely by Crutchfield, and fit well into my install. I have it connected to my JBL GTO 1201.1 sub amp and two 12" Alpine Type-R's (one generation older than the ones that just came out, 4th i believe, rated for 500 watts RMS). The amp is pushing a little over 1100 watts RMS to them at 2 ohms in a sealed box, 1.2 cubic ft. each chamber.

I have the amp grounded through the cap as well by wiring the amp's negative terminal to one of the negative terminals on the cap's distribution block. The other negative terminal on the cap is grounded to the chassis. It's in a '99 BMW E46 so the battery being in the trunk simplified things as well, and as it's closer to the cap/amp it helps contribute to pretty low fluctuation values in my displayed system voltage meter on the cap, and lighting fast power transfers from the cap to amp when needed. I didn't know much about the name Tsunami before buying, but as Crutchfield sells it and it had great reviews I went ahead and got it and don't regret it at all. No headlight dimming or system noise whatsoever, just pure, uninterrupted power.

Pros: Built-in Terminal Block works great, very convenient Voltage meter looks great, says "lo" as in "low" when it first detects charge/power or is about to shut off (as voltage is dropping, like when you turn off running car) Dragon design looks dumb, but so do most caps and it doesn't look like it will scrape off easily, so at least it was made well Decent price for a 2F cap with these features, but with Crutchfield's customer service and fast shipping (3 days to Hawaii, for free - what?! worth

Cons: Moves around a tiny bit sitting in its 2 plastic mounts if you press on it Dragon graphic looks kinda cheesy, would have preferred something cleaner or more plain

Tsunami Litewave Series PP92UM-CAP

Written By BrandonC, Linkwood, MD on Monday, March 28, 2011

Crutchfield Customer Review (What's this?)

Nice cap. I have ZERO noise and no speaker fade at all no matter how taxing the
music I'm playing is on my PDX-M6 and 10" Alpine Type-R set to 2ohm


Written By Chris, Wichita, Ks. on Sunday, February 13, 2011

Crutchfield Customer Review (What's this?)

I have read a lot of negative reviews online about capacitors. And
either they were incorrectly installed, and/or, the person had a
lousy alternator to begin with. Otherwise 1 of the "the big 3"
would not even be necessary in most cases. I am rinning a 1200watt
amp and 2-580 watt amps, along with 4 subs,on a Pioneer DEH-P6900UB
head-unit. And before adding this capacitor, my headlights would
flicker when I turn the volume up. So after I installed this
capacitor, I did a test. With my vehicle in the garage, I turned
out all the lights, turned my headlights on, then turned the volume
up. No more flickering! Great product, easy to install, would
recommend it to anyone.

Tsunami Litewave Series PP92UM-CAP

Written By Mike M, NY NY on Thursday, February 10, 2011

Crutchfield Customer Review (What's this?)

The product does everything it claimed to, and the music sounds great. Having said that, if I
were to purchase another, I would look for a model with a remote turn on wire. This unit
"turns on" when it senses voltage fluctuations. It has a bright blue display that shows system
voltage. When I get out of the car, the door light causes a voltage change, and the display
lights up, bringing my car attention I may not want it to have depending on the
neighborhood. This is taking all of the stealth out of my stealth install.

Also, the instructions said to charge the unit using a resistor. No resistor was included.
Instead there was a "charging bulb". The crutchfield guys got me headed in the right path,
but the instructions with the unit really should be updated. If I buy another I will look for an
internal charge protection feature. Fussing with the bulb every time you reconnect gets old.

Tsunami Litewave Series PP92UM-CAP

Written By Dimx, Dallas, Tx on Monday, February 07, 2011

Crutchfield Customer Review (What's this?)

Easy to install, charge and get it going. Running two audiobahn amps, 12" polk momo.
everything sounds even better. Lights dont dim anymore!

Great Product

Written By Ron T., Arlington Va on Thursday, November 11, 2010

Crutchfield Customer Review (What's this?)

I had just recently purchased 2 P3 Rockford Fosgates pushing 400w each and a
800w amp also by Rockford. I needed a capacitor to help keep constant power to
the subs but really didnt know much about them. So I called in and talked to one
of the advisors and he suggested the 2 farad Tsunami Litewave series cap. I was
then informed that for every Farad it could withstand 500w which was what I
needed. He was certainly on point with that. I put it to the test once I got the
cap. No cut offs at all!! Great product, glad I bought it. So whoever says it
doesn't work, its either defective, installed wrong or they have the wrong
wiring. I have 4 gauge wires going in and out of the cap, which it asked for.
Thanks Crutchfield

Worth the money

Written By Anonymous, Tampa on Monday, September 20, 2010

Crutchfield Customer Review (What's this?)

I bought this cap and my sub amp is running off of it. I didn't really think
that having one of these would make a difference; I thought it's just something
that professionals have in their system to make people think it's really
powerful. I was wrong. I turn my system up and you can't even tell from my
trucks electrical system that I am pushing some serious juice through it. I
would recomend this cap because it can handle all the power that a normal,
everyday sound system is going to utilize. It's free power for your amplifiers!
Why wouldn't you want one?

Tsunami Litewave Series PP92UM-CAP

Written By Mike, Woodbridge on Wednesday, August 25, 2010

Crutchfield Customer Review (What's this?)

Great product and provides the perfect amount of power to my amp! Ever since I hooked up this product, my lights in my truck never flickered again, nor did I ever lose power to the subs/amp ever again. The LED display is also a great tool to have. For the extra money, I upgraded to this model over the 1.0 farad model just to be safe to ensure I had enough power in my truck and I think you should do the same.

Hands-on research

What's in the box?

Download owner's manual

  • One 2.0 Farad capacitor
  • 2 Mounting brackets (one installed)
  • Charging bulb
  • Four 3/4" Self-tapping screws
  • 3/16" Allen wrench
  • Plastic terminal cover (installed)
  • Instructions
  • Limited Warranty

Product Research



Overview: The overall response of your audio system will be enhanced with the use of capacitors due to their ability to store a large amount of current and discharge it quickly to supplement your amplifier's power supply during high current demand (bass note). The Tsunami capacitor is a logical addition to your system due to the fact that automotive batteries aren't designed to deliver the current to satisfy the requirements of high powered audio components. It can also filter AC voltage induced in the system by the amplifier's power supply which could cause objectionable noise. One Farad of capacitance is recommended for each 1,000 watts of amplifier power, but you can never have too much capacitance for any system.


Display: The Tsunami PP92UM-CAP Power Capacitor features a blue digital volt meter.

 Protection Warning: The PP92UM-CAP features a high/low voltage warning and reverse voltage protection alarm.

Auto Turn-On/Off: The Tsunami Power Capacitor features current sensing auto turn-on with auto turn-off timer.

Quality Construction: The Power Capacitor features a silver brushed anodized case and satin nickel-plate solid-brass terminal blocks. The terminal blocks and support 1/0 AWG or 4 AWG wire.


Installation: On the top of the capacitor there are four set-screw terminals, two positive and two negative. The positive terminals are connected to the battery (and fused at the battery) and to the positive input on the amp. The negative is grounded to the car's chassis.

Charging Bulb: The capacitor comes with a charging bulb to assist you in initially charging the capacitor.



  • Capacitance: 2.0 Farad
  • Maximum Operating DC Voltage: 18-volt / 24-volt surge
  • ESR (Equivalent Series Resistance): < 6.50m ohm

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.