In this review, we will be comparing A125C and RP-450C, two Passive Center Channel speakers from JBL and Klipsch.
Let's have a brief look at the main features
of JBL Stage A125C and Klipsch RP-450C first before getting into our more
detailed comparison.
JBL Stage A125C Key Specs
- 2-way Design
- 1" dome with HDI (High Definition Imaging) waveguide technology Tweeter
- 2 x 5.24" polycellulose Woofer
- 75-40k Hz Frequency Response
- 88 dB Sensitivity
- Impedance: 6ohms
- Power Range:20-150watts
- Weight:7.97kg
- Dimensions (H x W x D): 191.0" x 18-1/2" x 9-1/2"( 191.0 x 470.0 x 242.0mm )
Klipsch RP-450C Key Specs
- 2-way Design
- 1" Tractrix horn Tweeter
- 4 x 5.25" Cerametallic cone Woofer
- 58-25k Hz Frequency Response
- 97 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 150watts
- Weight:16.23kg
- Dimensions (H x W x D): 174.0" x 31-1/8" x 14-9/16"( 174.0 x 791.0 x 370.0mm )
What size room are the JBL Stage A125C and Klipsch RP-450C 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:
| Listening Environment* |
JBL Stage A125C |
Klipsch RP-450C |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Average |
| Very Large Room |
Poor |
Poor |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2,
Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: >
400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual
listening experience changes depending on floor height, room shape, surface materials, listening
position, speaker locations, etc.)
In the following sections, we will get into more detail in order to better understand how the JBL Stage A125C and Klipsch RP-450C 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 A125C and RP-450C are 2-way speakers.
| Driver |
JBL Stage A125C |
Klipsch RP-450C |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 5.24-inch
|
4 x 5.25-inch
|
A125C features a 1" aluminum dome with HDI (High Definition Imaging) waveguide technology Tweeter and 2 x 5.24" polycellulose Woofer . On the other hand, the RP-450C features a 1" titanium Tractrix horn Tweeter and 4 x 5.25" Cerametallic cone Woofer .
Frequency Response
A125C has a frequency range of 75-40k Hz whereas RP-450C has a frequency range of 58-25k Hz. With a minimum frequency of 58Hz, the RP-450C can go significantly deeper on the low side and provide stronger bass compared to the A125C's min frequency of 75Hz.
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
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
A125C is a 6 ohms speaker compared to the RP-450C which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. A125C sensitivity is rated at 88 dB and the RP-450C's is rated at 97 dB. This 9 dB difference makes the Klipsch RP-450C a more sensitive speaker compared to JBL Stage A125C, 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.
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
A125C features Binding post type posts and RP-450C has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.
JBL Stage A125C's 5-Way post terminals
Klipsch RP-450C's Binding post terminals
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 Stage A125C's and Klipsch RP-450C's external dimensions. JBL Stage A125C has external dimensions of 191.0 x 470.0 x 242.0mm ( 7-1/2 x 18-1/2 x 9-1/2inch) whereas Klipsch RP-450C has external dimensions of 174.0 x 791.0 x 370.0mm ( 6-13/16 x 31-1/8 x 14-9/16inch) .
JBL Stage A125C is 321mm narrower and 128mm less deeper than Klipsch RP-450C but it is also 17mm taller.
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 Stage A125C is approximately 1137.4cm2 / 176.3inch2 and base area of the Klipsch RP-450C is approximately 2926.7cm2 / 453.6inch2. The A125C requires 61% less surface area than the RP-450C which gives it a small advantage on placement in tight spaces.