Ruthless Audio 800.4 Micro

Name: Ruthless Audio Ruthless Audio 800.4 Micro - Ruthless Audio 800.4 Micro
Brand: Ruthless Audio
SKU: 47607508467953
Price: 249.99 USD
Availability: InStock
Rating: 5 (3 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$249.99

Saving this product will notify you when it’s back in stock

Color

Black

Quantity

The Ruthless Audio 800.4 Micro is the sweet spot between stealth and strength. It delivers 800 watts of total RMS power from a chassis only 9.25 inches long, giving you enough output for serious component speakers and pro-audio mids without giving up the install flexibility that makes the Micro line so useful.
WHY CHOOSE THE RUTHLESS AUDIO

5.0

3 ratings

Love it no problems gets a little hot runs. Good has crazy clarity no hissing no nothing.

james · August 20, 2026

Love it

Johnathan · March 23, 2026

Awesome product and excellent customer service!

Robert · February 9, 2026

Ruthless Audio

5 (42)

Product description loading

This is the product description text that will appear here.

15% off

Ruthless Audio

Ruthless Audio 800.4

(2)

$289.99$339.95

13% off

Wolfram Audio

AC 200.4

(2)

$349.99$399.99

Ruthless Audio

Ruthless Audio 5000.2

$799.99

Brand X Electrical

87-93 Mazda b2200 b2600 180 - 350 amp alternator

$385.00

Jim's Machineworx

Budget ANL lug type fuse block kits

(38)

$9.99

Jim's Machineworx

Amplifier Racks

(4)

$89.99

The Stereo Shop

Nemesis FR-M800.4D

$229.99

20% off

ILL Customz Shop

Dual Lug Style Alt Block

(12)

$19.99$24.99

Brand X Electrical

16-26 Chevy GMC Buick Cruze Spark Malibu terrain equinox trax 1.4 1.5 240-325 amp

$365.00

Sky High Car Audio 8 gauge CCA amplifier wiring kit

Ruthless Audio

Sky High Car Audio 8 CCA Amp Kit

$24.95

galeforce-audio

F1 6x9" Pair

(31)

$200.00

SLAPZ car audio

SLAPZ Car Audio Mini 160.4 micro amplifier 160 x 4 channel

(48)

$109.99

26% off

ILL Customz Shop

ILL Customz Dual 1/0 to Single 1/0 Inputs

(25)

$16.99$22.99

Brand X Electrical

16-25 Civic 1.5 / 2.0 alternator 150-320 amp

(2)

$319.00

Sky High Car Audio 4 gauge CCA amplifier wiring kit

Ruthless Audio

Sky High Car Audio 4 CCA Amp Kit

$34.95

Ruthless Audio

Ruthless Audio 10000.1

(6)

$1,599.99

Audio Sellerz

Ruthless Audio 10000.1 Red – 10,000W Monoblock Competition Car Audio Amplifier

(3)

$1,599.99

Jim's Machineworx

Input Adapter 1/0 to 1/0

(3)

$16.00

Ruthless Audio

Ruthless Audio Neo 4"VC Subwoofer

$1,349.95

17% off

ILL Customz Shop

ILL Customz Nickel Plated Quad Lug Alternator block

(14)

$24.99$29.99

Jim's Machineworx

Cable lug covers

(12)

$1.10

Exclusive offer available

Diamond Audio

8-Channel MICRO8U Series Full Range Class D Amplifier - MICRO88U

(1)

$829.99

DC Audio

4.9

(902)

Brand X Electrical

300-540 amp 21+ 2.7 turbocharged Escalade Silverado Sierra Yukon 3.0L diesel

$495.00

DC Audio

XL SPL Subwoofers

(4)

$459.99

FOX ACOUSTICS

DODGE RAM QUAD & CREW CAB 2-12" OR 2-10" VENTED

(173)

$415.00

Exclusive offer available

Diamond Audio

4-Channel MICROV2 Series Full Range Class D Amplifier - MICRO4V2

(1)

$319.99$399.99

10% off

ILL Customz Shop

ILL Customz Single 1/0 to 1/0 Inputs

(20)

$17.99$19.99

Advanced Electric

AECharger-Programmable DC Power Supply & Lithium Battery Charger

(1)

$70.00

Ruthless Audio

Sky High Car Audio 1/0 CCA Big 3

$38.95

Audio Sellerz

4.7

(166)

Sky High Car Audio 80Mil Sound Deadener ( Single Sheet ) - Audio Sellerz

Sky High Car Audio Twisted 2-Channel Twisted RCA 1.5ft-20ft - Audio Sellerz

Sky High Car Audio 1/0 OFC Big 3 - Audio Sellerz

PAC SNI-35 Variable LOC Line Out Converter image 0

25% off

DC Audio

PS800x4 - Mini 4 Channel Amplifier

$209.99$279.99

ILL Customz Shop

ILL Customz Bolt Down Battery Terminals – Lug Style

(31)

$22.99

Ruthless Audio

Ruthless Audio Shirt

(5)

$20.00

ILL Customz Shop

ILL Customz Lug Style ANL Fuse Blocks

(40)

$21.99

Jim's Machineworx

Insert Input Adapters

(5)

$5.00

Exclusive offer available

Diamond Audio

4-Channel MICRO8U Series Full Range Class D Amplifier - MICRO84U

(2)

$499.99

Brand X Electrical

06-11 Honda civic 1.8L 200-350 amp alternator in

$305.00

Sky High Car Audio 1/0 CCA amplifier wiring kit

Ruthless Audio

Sky High Car Audio 1/0 CCA Amp Kit

$54.95

22% off

DC Audio

2.5k 2500 watt Mono Block Amplifier

(3)

$534.99$689.99

10% off

ILL Customz Shop

ILL Customz Dual 8 gauge to single 8 gauge speaker inputs

(14)

$17.99$19.99

Gately Audio

G4-800D Amplifier

(1)

$600.00

Brand X Electrical

External Regulator Model BXEXT1 Agm / LFP / LTO / NMC compatible

(6)

$229.00

Brand X Electrical

11-19 ford fiesta 1.6L bolt on 200-400 amp alternator

$305.00

Sky High Car Audio 4 gauge to 8 gauge amplifier inputs

Ruthless Audio

Sky High Car Audio 4ga to 8ga Amp Inputs

$14.95

Ruthless Audio

Ruthless Audio 1500.1 Micro

$349.99

Moon Car Stereo

Nemesis Audio MICRO-2800X4D 1400W RMS Class D 4-Channel Micro Amplifier

$349.99

Brand X Electrical

320 amp GM small case hairpin ad244 mount 97-21

(8)

$395.00

LF Audio

4.9

(284)

LF Audio Wireless Volume Controller PRO, six-channel base, knobs and screens

LF Audio Wireless Volume Controller LITE, knobs and base stations banner

LF Audio High Precision Voltmeter Pro held in hand showing 13.92 volts on its display

LF Audio High Precision Voltmeter held in hand, showing a voltage gauge

7% off

ILL Customz Shop

ILL Customz Dual 1/0 Input Alternator Block

(6)

$24.99$26.99

Jim's Machineworx

1/0 to 1/0 cable couplers

(8)

$5.95

Jim's Machineworx

Bolt Down Type 1/0 Battery Terminals New Style

(1)

$30.00

Brand X Electrical

03-07 Honda Accord CRV Element Civic Acura TSX RSX 2.0L 2.4L 200-350 amp k series engine

(2)

$305.00

Ruthless Audio

Ruthless Audio 3" VC Subwoofer

$749.95

DC Audio

Carbon Fiber Dust Caps

(10)

$51.70

28% off

ILL Customz Shop

ILL Customz 4ga to 8ga Reducers

(4)

$12.99$17.99

15% off

Soundstream

ST4.500D | Micro 4-Channel 500W Class-D Amplifier for Car Audio Precision

$101.99$119.99

Jim's Machineworx

Sae Top Post Battery Terminals

(7)

$80.00

Brand X Electrical

16+ tacoma 4runner 3.5L 180-320 amp alternator plug and play LIN control

$305.00

Gately Audio

Ruthless Audio 800.4 Micro

$279.95

25% off

DC Audio

PS1200x4 - Mini 4 Channel Amplifier

(11)

$329.99$439.99

Ruthless Audio

Ruthless Audio 7500.1

$1,249.99

Brand X Electrical

400 amp large case GM alternator AD244 mount 96-21 or bracket alternators.

(2)

$509.00

Ruthless Audio

Ruthless Audio Hat Camo

$25.00

Jim's Machineworx

Alternator lugs 1/0

(14)

$24.99

Moon Car Stereo

Nemesis Audio MICRO-2000X4D 1000W RMS Class D 4-Channel Micro Amplifier

$289.99

ILL Customz Shop

ILL Customz SAE Battery Terminals – Lug Style

(18)

$39.99

Brand X Electrical

100a Battery Charger Fixed Power Supply/lithium battery charger 120vac input with adjustable DC voltage from 13.8v to 16.2v

(1)

$259.00

Sky High Car Audio quad 8 gauge amplifier speaker outputs

Ruthless Audio

Sky High Car Audio Quad 8ga Speaker Wire Amplifier Outputs (1 pair)

$34.99

48% off

Wolfram Audio

AW-9000.1 Class D Monoblock

(5)

$1,199.99$2,299.99

Jim's Machineworx

Adjustable Back wall or floor mount amplifier racks

(8)

$59.99

Goli®

4.7

(35.5K)

25% off

ILL Customz Shop

ILL Customz 1/0 to 4ga Reducers

(14)

$14.99$19.99

Brand X Electrical

04+ Dodge Ram 5.7 5.9 6.4 6.7 270-400 amp

(2)

$375.00

Audio Sellerz

Ruthless Audio Micro 800.4 – Marine-Grade Micro 4-Channel Amplifier

(1)

$249.99

10% off

DC Audio

250.4 Class D 4-Channel Amplifier

(1)

$609.99$674.99

40% off

Ruthless Audio

Ruthless Audio 12500.1

(1)

$1,799.99$2,999.95

Brand X Electrical

Voltage PWM controller based on Internally Regulated Alternators PCM CONTROLLED 05+ GM vehicles

(8)

$89.00

Ruthless Audio

Ruthless Audio Hat Black/Red

(1)

$25.00

ILL Customz Shop

ILL Customz Bolt Down Battery Terminals – Input Style

(9)

$31.99

Moon Car Stereo

Nemesis Audio FR-M800.4D | 800W RMS 4-Channel Amplifier

$299.99

ILL Customz Shop

ILL Customz SAE Battery Terminals – Input Style

(8)

$39.99

Brand X Electrical

97-01 Toyota Camry solara 2.2L 200-350 amp alternator

$305.00

Sky High Car Audio copper 4 gauge to 8 gauge amplifier inputs

Ruthless Audio

Sky High Car Audio Copper 4ga to 8ga Amp Inputs

$42.50

galeforce-audio

F1 6.5" Pair

(34)

$180.00

Ampere Audio

Ampere Audio AA-200.4 350Wx4 Four Channel Car Amplifier – High Power Car Audio Amp

(2)

$449.99

ILL Customz Shop

ILL Customz 1/0 Distribution Blocks

(8)

$45.99

Brand X Electrical

12-23 Mitsubishi mirage 1.2L 240 amp alternator plug and play direct bolt on

$365.00

Sky High Car Audio 8 gauge OFC amplifier wiring kit

Ruthless Audio

Sky High Car Audio 8 OFC Amp Kit

$54.95

Gately Audio

Ruthless Audio 800.4

$339.95

Ruthless Audio 800.4 Micro

Description

Reviews5.0(3)

Delivery & Returns

Ruthless Audio

You might also like

Ruthless Audio 800.4

AC 200.4

Ruthless Audio 5000.2

87-93 Mazda b2200 b2600 180 - 350 amp alternator

Budget ANL lug type fuse block kits

Amplifier Racks

Nemesis FR-M800.4D

Dual Lug Style Alt Block

16-26 Chevy GMC Buick Cruze Spark Malibu terrain equinox trax 1.4 1.5 240-325 amp

Sky High Car Audio 8 CCA Amp Kit

F1 6x9" Pair

SLAPZ Car Audio Mini 160.4 micro amplifier 160 x 4 channel

ILL Customz Dual 1/0 to Single 1/0 Inputs

16-25 Civic 1.5 / 2.0 alternator 150-320 amp

Sky High Car Audio 4 CCA Amp Kit

Ruthless Audio 10000.1

Ruthless Audio 10000.1 Red – 10,000W Monoblock Competition Car Audio Amplifier

Input Adapter 1/0 to 1/0

Ruthless Audio Neo 4"VC Subwoofer

ILL Customz Nickel Plated Quad Lug Alternator block

Cable lug covers

8-Channel MICRO8U Series Full Range Class D Amplifier - MICRO88U

DC Audio

300-540 amp 21+ 2.7 turbocharged Escalade Silverado Sierra Yukon 3.0L diesel

XL SPL Subwoofers

DODGE RAM QUAD & CREW CAB 2-12" OR 2-10" VENTED

4-Channel MICROV2 Series Full Range Class D Amplifier - MICRO4V2

ILL Customz Single 1/0 to 1/0 Inputs

AECharger-Programmable DC Power Supply & Lithium Battery Charger

Sky High Car Audio 1/0 CCA Big 3

Audio Sellerz

PS800x4 - Mini 4 Channel Amplifier

ILL Customz Bolt Down Battery Terminals – Lug Style

Ruthless Audio Shirt

ILL Customz Lug Style ANL Fuse Blocks

Insert Input Adapters

4-Channel MICRO8U Series Full Range Class D Amplifier - MICRO84U

06-11 Honda civic 1.8L 200-350 amp alternator in

Sky High Car Audio 1/0 CCA Amp Kit

2.5k 2500 watt Mono Block Amplifier

ILL Customz Dual 8 gauge to single 8 gauge speaker inputs

G4-800D Amplifier

External Regulator Model BXEXT1 Agm / LFP / LTO / NMC compatible

11-19 ford fiesta 1.6L bolt on 200-400 amp alternator

Sky High Car Audio 4ga to 8ga Amp Inputs

Ruthless Audio 1500.1 Micro

Nemesis Audio MICRO-2800X4D 1400W RMS Class D 4-Channel Micro Amplifier

320 amp GM small case hairpin ad244 mount 97-21

LF Audio

ILL Customz Dual 1/0 Input Alternator Block

1/0 to 1/0 cable couplers

Bolt Down Type 1/0 Battery Terminals New Style

03-07 Honda Accord CRV Element Civic Acura TSX RSX 2.0L 2.4L 200-350 amp k series engine

Ruthless Audio 3" VC Subwoofer

Carbon Fiber Dust Caps

ILL Customz 4ga to 8ga Reducers

ST4.500D | Micro 4-Channel 500W Class-D Amplifier for Car Audio Precision

Sae Top Post Battery Terminals

16+ tacoma 4runner 3.5L 180-320 amp alternator plug and play LIN control

Ruthless Audio 800.4 Micro

PS1200x4 - Mini 4 Channel Amplifier

Ruthless Audio 7500.1

400 amp large case GM alternator AD244 mount 96-21 or bracket alternators.

Ruthless Audio Hat Camo

Alternator lugs 1/0

Nemesis Audio MICRO-2000X4D 1000W RMS Class D 4-Channel Micro Amplifier

ILL Customz SAE Battery Terminals – Lug Style

100a Battery Charger Fixed Power Supply/lithium battery charger 120vac input with adjustable DC voltage from 13.8v to 16.2v

Sky High Car Audio Quad 8ga Speaker Wire Amplifier Outputs (1 pair)

AW-9000.1 Class D Monoblock

Adjustable Back wall or floor mount amplifier racks

Goli®

ILL Customz 1/0 to 4ga Reducers

04+ Dodge Ram 5.7 5.9 6.4 6.7 270-400 amp