In this review, we will be comparing Motion XT C100 and HDI-4500, two Passive Center Channel speakers from MartinLogan and JBL. Let's have a brief look at the main features
of MartinLogan Motion XT C100 and JBL HDI-4500 first before getting into our more
detailed comparison.
What size room are the MartinLogan Motion XT C100 and JBL HDI-4500 speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:
In the following sections, we will get into more detail in order to better understand how the MartinLogan Motion XT C100 and JBL HDI-4500 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 Motion XT C100 and HDI-4500 are 2-way speakers.
Driver |
MartinLogan Motion XT C100 |
JBL HDI-4500 |
Driver Setup
|
2-way
|
2-way
|
Tweeter
|
1.25 x 2.4-inch
|
1-inch
|
Midrange
|
- |
- |
Woofer
|
2 x 6.5-inch
|
4 x 5.25-inch
|
Motion XT C100 features a 1.25 x 2.4" Folded Motion XT Tweeter and 2 x 6.5" Aluminum Woofer with a Crossover frequency at 1300Hz and 2500Hz. On the other hand, the HDI-4500 features a 1" horn-loaded high-frequency compression Tweeter and 4 x 5.25" Advanced Aluminum Matrix cone Woofer .
Frequency Response
Motion XT C100 has a frequency range of 42-25k Hz whereas HDI-4500 has a frequency range of 50-30k Hz. With a minimum frequency of 42Hz, the Motion XT C100 can go significantly deeper on the low side and provide stronger bass compared to the HDI-4500's min frequency of 50Hz.
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 Center Channel class in our database.
Low Frequency
Center Channel Speakers
High Frequency
Center Channel Speakers
MartinLogan Motion XT C100
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.
Impedance and Sensitivity
Motion XT C100 is a 5 ohms speaker compared to the HDI-4500 which has a nominal impedance of 4 ohms. Lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit especially when played at high volume levels, so make sure the amp you pair with the HDI-4500 can provide this impedance level.
These two speakers also have different sensitivity levels. Motion XT C100 sensitivity is rated at 93 dB and the HDI-4500's is rated at 90 dB. This 3 dB difference makes the MartinLogan Motion XT C100 a more sensitive speaker compared to JBL HDI-4500, hence will play louder with the same amount of watts.
Sensitivity
Center Channel Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.
Motion XT C100 can handle a max power of 300 watts RMS from the amp the whereas HDI-4500 has a max power handling value of 250 watts RMS, 50 watts less than the Motion XT C100.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
Motion XT C100 features Custom 5-way bi-wire tool-less binding posts posts which make bi-amping or bi-wiring possible. HDI-4500 has a 5-Way post which doesn't feature bi-amping/bi-wiring.
Cabinet Type and Port Position
Both Motion XT C100 and HDI-4500 have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
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 MartinLogan Motion XT C100's and JBL HDI-4500's external dimensions. MartinLogan Motion XT C100 has external dimensions of 203 x 610 x 368mm ( 8inch x 24inch x 14-1/2inch ) whereas JBL HDI-4500 has external dimensions of 197.0 x 842.0 x 310.0mm ( 7-3/4 x 33-1/8 x 12-3/16inch) .
JBL HDI-4500 is 6mm shorter and 58mm less deeper than MartinLogan Motion XT C100 but it is also 232mm wider.
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 MartinLogan Motion XT C100 is approximately 2244.8cm2 / 347.9inch2 and base area of the JBL HDI-4500 is approximately 2610.2cm2 / 404.6inch2. The Motion XT C100 requires 14% less surface area than the HDI-4500 which gives it a small advantage 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 MartinLogan Motion XT C100 weighs 15.40kg / 33.9lbs and the JBL HDI-4500 weighs 20.15kg / 44.3lbs. This makes the HDI-4500 31% heavier than the Motion XT C100.
Here is a comparison of how Motion XT C100 and HDI-4500's weights compare with the average, max and min weights in Passive Center Channel class.
Weight
All Center Channel Speakers
MartinLogan Motion XT C100
What's in the Box of JBL HDI-4500?
Here are the items that come with the HDI-4500:
Center-channel loudspeakerGrille2 Jumper-straps (pre-installed)Owners Manual
Max Input Power |
300 watts
vs
250 watts
|
Handle more power from your amplifier |
Sensitivity |
93 dB
vs
90 dB
|
Play louder with same amount of amplification power |
Nominal Impedance |
5 ohms
vs
4 ohms
|
Less selective with amplifiers |
Woofer Size |
6.5 inches
vs
5.25 inches
|
Larger woofer |
Low Frequency Response |
42 Hz
vs
50 Hz
|
Generates deeper bass |
Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
Base Surface Area |
2244cm2 (610x368mm)
vs
2610cm2 (842x310mm)
|
Takes less floor space |
Number of Woofers |
4
vs
2
|
More woofers |
High Frequency Response |
30k Hz
vs
25k Hz
|
Generates higher frequency |
Height |
197mm
vs
203mm
|
Easier to fit in smaller spaces |
Price per pair* |
1925USD
vs
2998USD
|
costs less (*prices may change depending on the seller, location and time) |
General |
MartinLogan Motion® XT C100 |
JBL HDI-4500 |
Brand |
MartinLogan |
JBL |
Speaker Type |
Center channel speaker |
Center channel speaker |
Power Range |
20-300 watts |
20-250 watts |
Sensitivity |
93 dB |
90 dB |
Impedance |
5 ohms |
4 ohms |
Frequency Response |
42-25k Hz |
50-30k Hz |
Drivers |
|
|
Woofer Quantity |
2 |
4 |
Woofer Size |
6.5" |
5.25" |
Woofer Composition |
Aluminum |
Advanced Aluminum Matrix cone |
Woofer Surround Material |
Rubber |
n/a |
Tweeter Size |
1.25 x 2.4" |
1" |
Tweeter Type |
Folded Motion XT |
horn-loaded high-frequency compression |
Aimable Tweeter |
No |
No |
Midrange Driver |
No |
N/A" |
Crossover Frequency |
1300Hz and 2500Hz |
n/a |
Firing Direction |
rear |
rear |
Suggested Break-in Period |
Allow 72 hours of break-in |
n/a |
Physical Specs |
|
|
Height |
203.0mm (8") |
197.0mm (7.8") |
Width |
610.0mm (24") |
842.0mm (33.1") |
Depth |
368.0mm (14.5") |
310.0mm (12.2") |
Weight |
15.40kg (33.9lbs) |
20.15kg (44.3lbs) |
Enclosure |
Bass Reflex |
Bass Reflex |
Finish |
MDF/Wood veneer |
n/a |
Available Colors |
Gloss Black, Walnut, and Satin White |
Walnut |
Grille |
Yes |
Yes |
Moisture Resistancy |
No |
No |
Connections |
|
|
Biamp Inputs |
Yes |
No |
Other |
|
|
Parts Warranty |
5 Years |
5 Years |
Labor Warranty |
5 Years |
5 Years |