Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
  1. Deal Image
Item 1 of 2
  1. Deal Image
  2. Deal Image
Item 1 of 2
forum threadhtp182 | Staff posted Today 12:57 AM

Hifonics ALPHA 2500W Class D Multichannel Car Amplifier w/ Variable Crossovers $199.99 + Free Shipping

$200

$350

42% off
Best Buy
2 Comments
523 Views
Get Deal at Best Buy
Deal Details
Best Buy [bestbuy.com] has Hifonics ALPHA 2500W Class D Multichannel Car Amplifier w/ Variable Crossovers on sale for $199.99. Shipping is free.

From Merchant's Product Page:
  • Specs:
    • Power output: 2500W
    • Class: D (digital)
    • Channels: Multichannel
    • Color: Silver/Black
  • Features:
    • Class D digital amplifier design for high efficiency and reduced heat output
    • Variable crossovers for tunable high-pass and low-pass frequency control
    • Multichannel configuration supports full-range speaker and subwoofer setups
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Best Buy [bestbuy.com] has Hifonics ALPHA 2500W Class D Multichannel Car Amplifier w/ Variable Crossovers on sale for $199.99. Shipping is free.

From Merchant's Product Page:
  • Specs:
    • Power output: 2500W
    • Class: D (digital)
    • Channels: Multichannel
    • Color: Silver/Black
  • Features:
    • Class D digital amplifier design for high efficiency and reduced heat output
    • Variable crossovers for tunable high-pass and low-pass frequency control
    • Multichannel configuration supports full-range speaker and subwoofer setups

Community Voting

Deal Score
+2
Good Deal
Get Deal at Best Buy

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

2 Comments

Sign up for a Slickdeals account to remove this ad.

Pro
Today 1:22 AM
1.8K Comments
Joined Jul 2019
WoodSlayR
Pro
Today 1:22 AM
1.8K Comments
Specs claim total RMS over 5 channels is 490 watts. Couldn't find anyone on YT doing a dyno on this model but Hifonics isn't really known for over rating their amps. At best they meet the claimed rating but they don't always. They probably fall short of claimed power as often as they make claimed power. Claiming 2500max and 490wrms doesn't give me a lot of confidence this amp has much power. Even if it made the claimed 490rms, it's still not a good $ per watt price. There's a whole plethora of $200 and under amplifiers that will give you easily over 1000 watts. Just one example, would be the Stinger 5 channel 1200 watt amp. It'll will give you more than rated, for the same price as this. For what it's worth, every Stinger amp I've seen dyno'd put out way over claimed rms and are super efficient.
Last edited by WoodSlayR August 30, 2026 at 06:54 PM.
Pro
Today 1:43 AM
1.8K Comments
Joined Jul 2019
WoodSlayR
Pro
Today 1:43 AM
1.8K Comments
Anyone looking for a super small footprint, super efficient multi channel amp, you might want to look into the newly released Fosi Audio CA30 4 Channel. Every review I've seen on the internet has given it rave reviews and dyno'd it putting out easily over it's it claimed 100wrms x 4, or 160 x 4 @ 2ohms or 320wrms x 2 bridged @ 4 ohm. It's not on sale and probably wont be anytime soon, but it's only $139 full retail. Also For what it's worth, Big D on YouTube tested this amp all the way down to 2ohm bridged which is beyond what it's rated to be stable to and it put out just over 1300wrms total, or a bit 650 x 2wrms on the test bench. That's crazy power levels for 140 bucks. For anyone interested in seeing his dyno tests. go to https://www.youtube.com/watch?v=bycYfpNsP70 and If for some reason you don't care for Big D, There's lot's of other people reviewing this exact amp. The amp is making a lot of noise in the car audio world because its the first car amp Fosi Audio's ever released. I'm looking forward to seeing what other products they release in the future.
Last edited by WoodSlayR August 30, 2026 at 07:12 PM.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

Related Searches

AutosAuto Parts & SuppliesAuto Electronic AccessoriesFree ShippingTech & ElectronicsAudio / VideoBest Buy