Garage
Shop

See all parts that fit your 2003 Focus ZX5

Boss K680 Klash Series

Boss
Shop all Boss
Product videos
highlight-star-icon

1400W Bridgeable 2-channel amplifier • Remote subwoofer control • 18dB Bass Boost • Variable high and low pass crossovers

Learn more about the k680

We apologize

This item has been discontinued


Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

2
-16.67%

$349.99

List price $420.00

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00

MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

KW-M560BT main

JVC KW-M560BT

6.8" Double-DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

10
PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00

NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99

Product Highlights


1400W Bridgeable 2-channel amplifier • Remote subwoofer control • 18dB Bass Boost • Variable high and low pass crossovers

Description


Boss brand icon

Authorized dealer

KLASH power amplifiers are built to pound other amps into submission. Built like a power fortress, the chrome top plate and plexiglass cover form a mesmerizing combination that will attract everyone's attention. Each amp is packaged with a remote subwoofer level control for convenient bass adjustment.
  • 2-Channel High Power Amplifier
  • Max Power, 2 ohm: 700W x 2 channels
  • RMS Power, 4 ohm: 250W x 2 channels
  • Bridged Max Power: 1400W x 1 channel
  • Remote subwoofer level control
  • Heavy Duty Aluminum Alloy Heatsink
  • Class A/B Operation
  • Variable High Pass Crossover: 55Hz - 4.2kHz
  • Variable Low Pass Crossover: 35Hz - 155Hz
  • Nickel Plated RCA Low Level and High Level Inputs
  • Variable Input Gain Control
  • Remote Turn On/Off Circuit
  • MOSFET Pulse Width Modulated (PWM) Power Supply
  • 2 Ohm Stereo Stable Operation with Output Power Increase
  • Soft Turn-On Circuit
  • Thermal and Speaker Short Protection Circuitry
  • LED Power and Protection Indicators
  • Bass Boost: 0 - +18dB
  • Treble Boost: 0 - +12dB
  • Input voltage swith 100mV-2V /2V-8V
  • Frequency Response: 9Hz ~ 50kHz (+/-3dB)
  • S/N Ratio: >105dB
  • THD: 0.01%
  • Channel Separation: 90dB
  • Dimensions: 11-3/8"W x 2-5/16"H x 16-3/8"D
  • Damping Factor: 125+
  • Fuse Size: 40A
  • 1-year Manufacturer's Warranty

Best selling similar products

ATOM-900.2 PRO small

Deaf Bonce Apocalypse ATOM-900.2 PRO

• 350 watts x 2 channel @ 4 ohm
• 510 watts x 2 channel @ 2 ohm
• 900 watts x 2 channel @ 1 ohm
• Bridged: 1020 watts x 1 channel @ 4 ohm
• 1000 watts @ 2 ohm
• Total RMS Power: 900 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

$229.90

List price $229.90

MFA 2.420 small

Deaf Bonce MFA 2.420

• 420 watts x 2 channel @ 4 ohm
• 630 watts x 2 channel @ 2 ohm
• Bridged: 1260 watts x 1 channel @ 4 ohm
• Total RMS Power: 1260 watts
• Class D 2 ohm Stable 2-Channel Amplifier

$229.90

List price $229.90

ATOM-700.2 PRO small

Deaf Bonce Apocalypse ATOM-700.2 PRO

• 230 watts x 2 channel @ 4 ohm
• 480 watts x 2 channel @ 2 ohm
• 700 watts x 2 channel @ 1 ohm
• Bridged: 960 watts x 1 channel @ 4 ohm
• 14000 watts @ 2 ohm
• Total RMS Power: 700 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

(1)

$199.90

List price $199.90

Item Details


Manufacturer:

Model Number:

K680

Weight:

15.00lbs

Internal SKU:

k680

Internal Product ID:

1559

Product and How-to Videos


Customer Ratings & Reviews


Boss K680 Klash Series thumbnail image

5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found

12TW5-3 small

JL Audio 12TW5-3

12" Single 3 ohms TW5 Thin-Line Subwoofer

$319.99

List price $469.99

HAFR6R small

JVC HAFR6R (HA-FR6-R) Gummy Plus Earbuds In-Ear Headphones - Red

Gummy Plus In-Ear Headphones/Earbuds w/ Microphone and Remote (Red)

$8.99

List price $14.95

P9745B small

Planet Audio P9745B-OPEN BOX

In-Dash Double DIN DVD, CD, MP3 Receiver w/ 7" Touchscreen Monitor, Built-in Bluetooth and Front USB and Aux-in

$154.95

List price $428.99

C5-075ct-RP small

JL Audio C5-075ct-RP

0.75" (19mm) Evolution C5 Series Silk Soft-Dome Tweeters

(6)

$169.95

List price $189.95

BULLET SHADE small

Aerial7 Bullet (Shade)

Bullet Series In-Ear Headphones Multi-Device Stereo Earbuds

(1)

$8.99

List price $20.00

CR1400.2 small

Sound Storm SSL CR1400.2

1400W Max, 2-Channel Cruiser Series Amplifier

(1)

$104.99

List price $199.99

ZXi683 small

Hifonics Zeus ZXi 683

Zeus ZXi 6" x 8" 3-way Speakers (ZXi683)

(16)

$42.95

List price $99.99

IEM856MD small

Scosche IEM856MD - Black

10.7mm Dynamic Drivers with 6.3mm Balanced Armature Driver and tapLine III Remote and Controler

$59.99

List price $299.99

XS-GT5727A small

Sony XS-GT5727A

5" x 7" 2-Way GT Series Coaxial Car Speakers

(1)

$29.95

List price $59.95

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2015 BMW 528i xDrive

1998 BMW 750iL

2005 Nissan Maxima

2003 Ford Focus ZX5

2025 Ford Ranger

2010 Subaru Forester

2011 Dodge Durango

2011 Aston Martin DB9

2000 GMC Safari

2005 Kia Spectra

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.