Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In

2001 BMW M3

Change vehicle | Remove vehicle

The best Digital Sound Processors (DSP) for 2001 M3

Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Digital Sound Processors for 2001 BMW M3

Shop for Digital Sound Processors (DSP) that offer massive upgrades to your factory BMW M3 OEM stereo. A DSP will revolutionize the way you are able to control your overall sound in your vehicle and get precise adjustments to your amps and speakers.

Filters
Diamond Audio ✕
Clear Filters
Reset Done
Product Type
Price Range
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Built-in Bass Reconstruction
Bass reconstructors, or bass enhancers, improve low frequency reproduction in a car audio system with at least one subwoofer. These bass expander products will help your subs produce accurate bass thumps.
Line Driver
A line driver is a small amplifier used to support the strength of the audio signal coming from the source unit.
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
Deals
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
Availability
filter-icon Filters & Sort

Diamond Audio MSDSP88

8-Channel Waterproof Micro Digital Signal Processor

MSDSP88 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio MSDSP88

8-Channel Waterproof Micro Digital Signal Processor

• 6-Channel Digital Signal Processor with LCD Display
• Includes six inputs and six outputs
• 15-band parametric equalizer
• External Bluetooth dongle included

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $44.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$439.99

In stock.

Add to Cart

• 6-Channel Digital Signal Processor with LCD Display
• Includes six inputs and six outputs
• 15-band parametric equalizer
• External Bluetooth dongle included

Diamond Audio BTDSP66LCD

6-Channel Digital Signal Processor with LCD Display

BTDSP66LCD big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio BTDSP66LCD

6-Channel Digital Signal Processor with LCD Display

• 6-Channel Digital Signal Processor with LCD Display
• Includes six inputs and six outputs
• 15-band parametric equalizer
• External Bluetooth dongle included

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$379.99

In stock.

Add to Cart

• 6-Channel Digital Signal Processor with LCD Display
• Includes six inputs and six outputs
• 15-band parametric equalizer
• External Bluetooth dongle included

Diamond Audio LOC44

400W 4-Channel Line Output Converter with Remote Bass Control

LOC44 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio LOC44

400W 4-Channel Line Output Converter with Remote Bass Control

• Active 4-channel line output converter
• Speaker level and low-level inputs
• Selectable impedance load: 20, 60, 20k ohm
• Turn-on Modes: Remote, Vox (Audio Signals), and DC
• Ground Isolation Switch: 200-ohms, ISO, and Ground

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$109.99

In stock.

Add to Cart

• Active 4-channel line output converter
• Speaker level and low-level inputs
• Selectable impedance load: 20, 60, 20k ohm
• Turn-on Modes: Remote, Vox (Audio Signals), and DC
• Ground Isolation Switch: 200-ohms, ISO, and Ground

Diamond Audio LOC24

400W 2-Channel Line Output Converter with Remote Bass Control

LOC24 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio LOC24

400W 2-Channel Line Output Converter with Remote Bass Control

• Active 4-channel line output converter
• Speaker level and low-level inputs
• Selectable Load Modes: 20-ohms, 60-ohms, and 20000-ohms
• Turn-on Modes: Remote, Vox (Audio Signals), and DC
• Ground Isolation Switch: 200-ohms, ISO, and Ground

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$64.99

Available

Ships in 10-14 days

Add to Cart

• Active 4-channel line output converter
• Speaker level and low-level inputs
• Selectable Load Modes: 20-ohms, 60-ohms, and 20000-ohms
• Turn-on Modes: Remote, Vox (Audio Signals), and DC
• Ground Isolation Switch: 200-ohms, ISO, and Ground

Diamond Audio LOC66

400W 6-Channel Line Output Converter with Remote Bass Control

LOC66 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio LOC66

400W 6-Channel Line Output Converter with Remote Bass Control

• Active 6-channel line output converter
• Speaker level and low-level inputs
• Selectable impedance load: 20, 60, 20k ohm
• Turn-on Modes: Remote, Vox (Audio Signals), and DC
• Ground Isolation Switch: 200-ohms, ISO, and Ground

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $20.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$199.99

In stock.

Add to Cart

• Active 6-channel line output converter
• Speaker level and low-level inputs
• Selectable impedance load: 20, 60, 20k ohm
• Turn-on Modes: Remote, Vox (Audio Signals), and DC
• Ground Isolation Switch: 200-ohms, ISO, and Ground

Diamond Audio BE1

2-Channel Line Output Converter with Digital Bass Enhancer

BE1 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio BE1

2-Channel Line Output Converter with Digital Bass Enhancer

• Active 2-channel digital bass enhancer and line output converter
• Speaker level and low-level inputs
• Selectable Load Modes: 20-ohms, 60-ohms, and 20000-ohms
• Turn-on Modes: Remote, Vox (Audio Signals), and DC
• Ground Isolation Switch: 200-ohms, ISO, and Ground

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $25.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$249.99

In stock.

Add to Cart

• Active 2-channel digital bass enhancer and line output converter
• Speaker level and low-level inputs
• Selectable Load Modes: 20-ohms, 60-ohms, and 20000-ohms
• Turn-on Modes: Remote, Vox (Audio Signals), and DC
• Ground Isolation Switch: 200-ohms, ISO, and Ground

Diamond Audio LOC88

400W 8-Channel Line Output Converter with Remote Bass Control

LOC88 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio LOC88

400W 8-Channel Line Output Converter with Remote Bass Control

• Active 8-channel line output converter
• Speaker level and low-level inputs
• Selectable impedance load: 20, 60, 20k ohm
• Turn-on Modes: Remote, Vox (Audio Signals), and DC
• Ground Isolation Switch: 200-ohms, ISO, and Ground

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $25.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$249.99

In stock.

Add to Cart

• Active 8-channel line output converter
• Speaker level and low-level inputs
• Selectable impedance load: 20, 60, 20k ohm
• Turn-on Modes: Remote, Vox (Audio Signals), and DC
• Ground Isolation Switch: 200-ohms, ISO, and Ground

 
    Clear all
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    FAQ for Digital Sound Processors (DSP) in 2001 M3

    Q: Can I upgrade or change the Digital Sound Processors (DSP) in 2001 BMW M3?

    A: Yes this page includes all the best Digital Sound Processors (DSP) that work in your M3.

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

    2001 BMW M3

    2002 GMC Envoy

    1997 Chrysler Cirrus

    2005 Chrysler Sebring

    2012 Nissan Maxima

    2016 GMC Sierra 3500 HD

    1992 Isuzu Stylus

    2000 Volvo V70

    2012 Suzuki Kizashi

    2003 BMW 760Li

    Vehicle
    Store     Delete

    1994 Harley Davidson FLHT Electra Glide Standard

    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

    Cancel

    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue

    Cancel

    Shop your 2001 M3
    Why Use a Vehicle Fit Guide?
    Change vehicle | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.

    Additional information:

    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    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
    Back

    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.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo