Garage
Shop

See all parts that fit your 1978 K3500 Pickup

MB Quart RSI 216

6-1/2" 2-way Reference Series Component Speakers System (RSI216)

MB Quart
Shop all MB Quart
highlight-star-icon

6-1/2" Reference Series 2-Way Component Speakers System • 140W Max • 70W RMS • Polypropylene cone woofer • Rubber surround • 1.25" Titanium "Widesphere" tweeters • Reference crossovers with new and unique FleXX Mount system

Learn more about the rsi216

We apologize

This item has been discontinued


Loading...
RVM-35V1 main

MB Quart RVM-35V1

3.5" Touchscreen Multi-Zone Digital Multimedia Receiver with Bluetooth for RV's

-10.38%

$189.99

List price $211.99

RV.R1 main

DS18 RV.R1

Multi-Zone Digital Audio Receiver with Bluetooth Audio Streaming for RV's

RVDVD3.0 main

MB Quart RVDVD3.0

Multi-Zone DVD Receiver with Bluetooth for RV's

1
-10.10%

$257.99

List price $286.99

MB Quart RVM2.0

Multi-Zone Digital Audio Receiver with Bluetooth Audio Streaming for RV's

-10.29%

$156.99

List price $174.99

RVM-10V1 main

MB Quart RVM-10V1

10" Touchscreen Multi-Zone Digital Multimedia Receiver with Bluetooth for RV's

-9.09%

$250.00

List price $275.00

Description


MB Quart brand icon

Authorized dealer

  • 6-1/2" Reference Series 2-Way Component Speakers System
  • Power Handling:
    • Peak: 280 watts per set / 140 watts each side
    • RMS: 140 watts per set / 70 watts each side
  • Polypropylene cone woofer
  • Rubber surround
  • 1.25" Titanium "Widesphere" tweeters
  • Reference crossovers with new and unique FleXX Mount system for limitless mounting possibilities
  • Surface mounting rings, grilles and additional mounting accessories included
  • Three-level tweeter attenuator with rotary switch (0, 1, 3, 6 dB)
  • Bi-wiring and bi-amping capable
  • Crossover filter (3200 Hz, 6/12 dB/octave)
  • 4 ohm impedance
  • Top-mount depth: 2-1/2"
  • 1-year SonicElectronix.com warranty
  • Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.


Best selling similar products

MPK 163.3 small

Hertz MPK163.3

• 300 watts Peak Each, 150 watts RMS Each
• Tetolon Soft Dome tweeters
• Pressed Pulp Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

(2)

$999.99

List price $1175.00

PNW-65CS2 small

AudioControl PNW-65CS2

• 125 watts Peak Each, 100 watts RMS Each
• 3/4" rear-dampened Hybrid Silk Dome tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.8 dB

(4)

$319.00

List price $339.00

T2652-S small

Rockford Fosgate Power T2 T2652-S

• 200 watts Peak Each, 100 watts RMS Each
• 1" Aluminum Dome tweeters with integral suspension
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

(42)

$449.99

List price $449.99

Specifications & Details


Speaker Specifications
Speaker Size
6-1/2"
Design
2-way Component System
Tweeter Design
Cone
Tweeter Composition
Titanium
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Peak Power Handling
140 watts
RMS Power Handling
70 watts
Sensitivity
87 dB
Frequency Response
38 - 31000 Hz
Impedance (Per Voice Coil)
4 ohm
Top-Mount Depth (Mounting Depth)
2-1/2"
Cutout Dimensions
5-1/4" x 5-1/4" 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

RSI-216

Weight:

9.00lbs

Internal SKU:

rsi216

Internal Product ID:

13946

Customer Ratings & Reviews


MB Quart RSI 216 thumbnail image

5 star
83%
4 star
17%
3 star
0%
2 star
0%
1 star
0%



Durability
4.2
Value
4.5
Features
4.7
Design
4.9
Usability
4

Customer Reviews

Sort by:

Loading...

Bang for buck!

Great product, have 2 sets of these in my Rolla along with a set of MBQ 6x9 components. With just one set and the 6x9's they were plenty to keep up with over 3000 RMS running to my single 15. Running these comp's off about a Hifonics ZXi 80.4

By YotaRolla on September 10, 2011

7 found this helpful


wow great sound

I have two sets of these in my car. I have a owned a few sets of MB quarts and I've never been let down by any of them. I have 60 rms going to each channel and the sound is unbelievable. Rich mids with detailed highs.

By strikher on September 24, 2010

6 found this helpful


Good speakers

Easy to install, took a long time though to run the wires. Speakers sound awesome. Make sure to run through an amp. Great value through this company. I bought on eBay, a lot cheaper than purchasing in store.

By Bro on September 23, 2010

5 found this helpful


wow great sound

I have two set of these in my car. I have a owned a few sets of MB quart. I have never been let down by any of them. I have 60rms going to each channel and the sound is unbelievable. Rich mids detailed highs.

By strikher on September 24, 2010

3 found this helpful


Good speakers

These things sound pretty good. Don\'t expect much bass from them though. I put them in the doors of my Silverado. They are very clear and loud with some extra power going to them. I used the mb quart 400 watt amp and it fits under the seat of my single cab silverado. 1 & 2 going to components, 3 & 4 going to 10\" sub. Crossovers do fit behind the door panels; I glued them to the back.

I\'ve had these things cranked pretty good with no distortion or failures yet. Seem like a good value.

By Ry on March 9, 2009

3 found this helpful


Great set of mids

I love these I have three pairs in different vehicles they are amazing

By jeremy on March 3, 2023 Checkmark Icon Verified purchase




MARK-6 small

VocoPro MARK-6 (MK-6, MK6)

Wired Microphone for Karaoke Systems

(1)

$19.00

List price $24.00

PWR-S5 small

XS Power Titan8 (PWR-S5)

5000W 10Ah Lithium Titanate Oxide Battery

$599.99

List price $619.99

Related Searches


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

1978 GMC K3500 Pickup

1978 Chevrolet Chevette

2017 MINI Cooper

2013 Porsche Cayenne

1998 Toyota Celica

2007 Honda CR-V

2025 Nissan Altima

2025 Kia Carnival

2006 Audi TT

1990 Mitsubishi Eclipse

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.