In this review, we will be comparing 4329P and LS50 Wireless II, two Powered Bookshelf speakers from JBL and KEF. Being Powered speakers, they both have built-in amplifiers so you don't need an external power amp or an integrated amp to power them.
Let's have a brief look at the main features
of JBL 4329P and KEF LS50 Wireless II first before getting into our more
detailed comparison.
JBL 4329P Key Specs
- 2-way Design
- 600-watt RMS Integrated Amplifier
- 1" Horn-Loaded Tweeter
- 8" cast-frame paper-cone Woofer
- 28-25 kHz Frequency Response
- 24-bit Max Depth / 192kHz Max Sample Rate
- Built-in 5.3 Bluetooth
- App Control Feature
- Weight:14.70kg
- Dimensions (H x W x D): 515.0" x 12.625" x 12.75"( 515.5mm x 320mm x 322.4mm )
KEF LS50 Wireless II Key Specs
- 2-way Design
- 380-watt RMS( 760-watt Peak) Integrated Amplifier
- 12th Generation Uni-Q Driver
- 1" Hard-Dome Tweeter
- 5.25" Aluminum Woofer
- 45-28k Hz Frequency Response
- 32-bit Max Depth / 384 kHz Max Sample Rate
- Built-in 4.2 Bluetooth
- App Control Feature
- Weight:10.00kg
- Dimensions (H x W x D): 277.8" x 7.875" x 12.6875"( 277.8 x 200.0 x 322.3mm )
In the following sections, we will get into more detail in order to better understand how the JBL 4329P and KEF LS50 Wireless II compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
Both 4329P and LS50 Wireless II are 2-way speakers.
| Driver |
JBL 4329P |
KEF LS50 Wireless II |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 8-inch
|
1 x 5.25-inch
|
4329P features a 1" Teonex Horn-Loaded Tweeter and 1 x 8" cast-frame paper-cone Woofer with a Crossover frequency at 1675 Hz. On the other hand, the LS50 Wireless II features a 1" Aluminum Hard-Dome Tweeter and 1 x 5.25" Aluminum Woofer .
Frequency Response
4329P has a frequency range of 28-25 kHz whereas LS50 Wireless II has a frequency range of 45-28k Hz. With a minimum frequency of 28Hz, the 4329P can go significantly deeper on the low side and provide stronger bass compared to the LS50 Wireless II's min frequency of 45Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Cabinet Type and Port Position
4329P has a front firing port whereas LS50 Wireless II has a rear firing ports. JBL 4329P's front-firing port gives more flexibility in placement in regards to proximity to walls compared to KEF LS50 Wireless II with its rear-firing port.
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare JBL 4329P's and KEF LS50 Wireless II's external dimensions. JBL 4329P has external dimensions of 515.5mm x 320mm x 322.4mm ( 20.3125inch x 12.625inch x 12.75inch ) whereas KEF LS50 Wireless II has external dimensions of 277.8 x 200.0 x 322.3mm ( 10.9375 x 7.875 x 12.6875inch) .
KEF LS50 Wireless II is 120mm narrower and 237.2mm shorter than JBL 4329P but it is also 0.30000000000001mm deeper.
Below you can see the front view size comparison of JBL 4329P and KEF LS50 Wireless II in scale.
Comparison image of JBL 4329P and KEF LS50 Wireless II Size and External Dimensions
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the JBL 4329P is approximately 1030.4cm2 / 159.7inch2 and base area of the KEF LS50 Wireless II is approximately 644.6cm2 / 99.9inch2. The 4329P requires 60% more surface area than the LS50 Wireless II which gives it a small disadvantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The JBL 4329P weighs 14.70kg / 32.3lbs and the KEF LS50 Wireless II weighs 10.00kg / 22lbs. This makes the 4329P 47% heavier than the LS50 Wireless II.
Here is a comparison of how 4329P and LS50 Wireless II's weights compare with the average, max and min weights in Powered Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of JBL 4329P?
Here are the items that are included inside the box of 4329P:
2 Powered speakers2 GrillesTwo 69-inch AC power cords10-feet CAT5e cableRemote control2 AAA batteries8 Self-adhesive feetOwner-feets ManualImportant Safety Instructions
What's in the Box of KEF LS50 Wireless II?
Here are the items that come with the LS50 Wireless II:
2 Wireless powered speakersTwo 6.5-feet AC power cords10-feet Cat-6 interconnect speaker cableRemote control2 AAA batteries Quick Start Guide Important Safety Information Warranty Information
 Woofer Size |
8 inches
vs
5.25 inches
|
Larger woofer |
|
Low Frequency Response |
28 Hz
vs
45 Hz
|
Generates deeper bass |
 Port Position |
Front
vs
Rear
|
Gives more flexibility placing close to walls |
 High Frequency Response |
28k Hz
vs
25k Hz
|
Generates higher frequency |
 Height |
277mm
vs
515mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
644cm2
vs
1030cm2
|
Takes less floor space |
 Price per pair* |
2499USD
vs
4500USD
|
costs less (*prices may change depending on the seller, location and time) |
 HDMI Input |
eARC
vs
No
|
Connect HDMI sources directly |
| General |
JBL 4329P |
KEF LS50 Wireless II |
| Brand |
JBL |
KEF |
| Speaker Type |
Powered Stereo Speakers |
Powered Stereo Speakers |
| Frequency Response |
28-25 kHz |
45-28k Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
600-watt RMS |
380-watt RMS |
| Watts Peak (Max) |
n/a |
760-watt RMS |
| Max Bit Depth |
24-bit |
32-bit |
| Max Sample Rate |
192kHz |
384 kHz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
5.25" |
| Woofer Composition |
cast-frame paper-cone |
Aluminum |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Horn-Loaded |
Hard-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
1675 Hz |
n/a |
| Firing Direction |
front |
rear |
Physical Specs |
|
|
| Height |
515.0mm (20.3") |
277.8mm (10.9") |
| Width |
320.0mm (12.6") |
200.0mm (7.9") |
| Depth |
322.0mm (12.7") |
322.3mm (12.7") |
| Weight |
14.70kg (32.3lbs) |
10.00kg (22lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
3/4-inch MDF with real wood veneer |
n/a |
| Available Colors |
Satin Walnut, Black Walnut |
n/a |
| Mounting Bracket |
No |
No |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Aux Inputs |
3.5mm |
3.5mm |
| USB Port |
USB-B |
Service only |
| Phone Input |
No |
No |
| Subwoofer Output |
mono-RCA |
Wired |
| Digital Input |
Optical |
Optical, Coax |
| HDMI Input |
No |
eARC |
| Headphone Jack |
No |
No |
| Ethernet Port |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
5yr drivers/2 yr amp |
1 Year |
| Labor Warranty |
5yr drivers/2 yr amp |
1 Year |