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JBL Stage 245C vs JBL Stage A125C Comparison

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JBL Stage 245C

Passive Center Channel | 82-25k Hz

JBL Stage 245C
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JBL Stage A125C

Passive Center Channel | 75-40k Hz

JBL Stage A125C
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JBL Stage 245C JBL Stage 245C
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JBL Stage A125C JBL Stage A125C
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JBL Stage 245C
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JBL Stage A125C
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JBL Stage 245C vs JBL Stage A125C Speaker Comparison

In this review, we will be comparing Stage 245C and A125C, two Passive Center Channel speakers by JBL

Let's have a brief look at the main features of JBL Stage 245C and JBL Stage A125C first before getting into our more detailed comparison.

JBL Stage 245C Key Specs

  • 2-way Design
  • 1" Hard-Dome Tweeter
  • 4 x 4.5" Polycellulose Woofer
  • 82-25k Hz Frequency Response
  • 91 dB Sensitivity
  • Impedance: 6ohms
  • Power Range:20-150watts
  • Weight:12.00kg
  • Dimensions (H x W x D): 156.0" x 29-1/8" x 8-1/2"( 156.0 x 740.0 x 216.0mm )

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 )

What size room are the JBL Stage 245C and JBL Stage A125C 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 245C JBL Stage A125C
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 245C and JBL Stage A125C compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Drivers

Both Stage 245C and A125C are 2-way speakers.

Driver JBL Stage 245C JBL Stage A125C
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 4 x 4.5-inch 2 x 5.24-inch

Stage 245C features a 1" Hard-Dome Tweeter and 4 x 4.5" Polycellulose Woofer . On the other hand, the A125C features a 1" aluminum dome with HDI (High Definition Imaging) waveguide technology Tweeter and 2 x 5.24" polycellulose Woofer .

Frequency Response

Stage 245C has a frequency range of 82-25k Hz whereas A125C has a frequency range of 75-40k Hz. With a minimum frequency of 75Hz, the A125C can go significantly deeper on the low side and provide stronger bass compared to the Stage 245C's min frequency of 82Hz.

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

Stage 245C
A125C
Min
Average
Max
High Frequency

Center Channel Speakers

JBL Stage 245C
JBL Stage A125C
Min
Average
Max

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

Stage 245C and A125C have the same Impedance of 6 ohms but where they differ is the sensitivity levels. Stage 245C sensitivity is rated at 91 dB and the A125C's is at 88 dB. This 3 dB difference makes the JBL Stage 245C a more sensitive speaker compared to JBL Stage A125C, hence will play louder with the same amount of watts.

Sensitivity

Center Channel Speakers

Stage 245C
A125C
Min
Average
Max

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.

Stage 245C and A125C has the same power range of 20-150 watts.

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

Stage 245C features 5-Way post type posts and A125C has a 5-Way post type posts. None of these speakers feature bi-amping/bi-wiring.

JBL Stage A125C5-Way post Terminals
JBL Stage A125C's 5-Way 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 245C's and JBL Stage A125C's external dimensions. JBL Stage 245C has external dimensions of 156.0 x 740.0 x 216.0mm ( 6-1/8 x 29-1/8 x 8-1/2 inch) whereas 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) .

JBL Stage 245C is 35mm shorter and 26mm less deeper than JBL Stage A125C but it is also 270mm 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 JBL Stage 245C is approximately 1598.4cm2 / 247.8inch2 and base area of the JBL Stage A125C is approximately 1137.4cm2 / 176.3inch2. The Stage 245C requires 41% more surface area than the A125C 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 Stage 245C weighs 12.00kg / 26.4lbs and the JBL Stage A125C weighs 7.97kg / 17.5lbs. This makes the Stage 245C 51% heavier than the A125C.

Here is a comparison of how Stage 245C and A125C's weights compare with the average, max and min weights in Passive Center Channel class.

Weight
All Center Channel Speakers
JBL Stage 245C
JBL Stage A125C
Min
Average
Max

What's in the Box of JBL Stage 245C?

Here are the items that are included inside the box of Stage 245C:
  • Center-channel loudspeaker Grille 6 Self-adhesive rubber pads Quick Start Guide Important Safety Instructions
  • What's in the Box of JBL Stage A125C?

    Here are the items that come with the A125C:
  • Center-channel loudspeaker
  • Grille
  • 4 Leveling feet
  • 4 Rubber feet
  • Owners Manual
  • Warranty Card

  • Reasons to choose JBL Stage 245C over JBL Stage A125C
    Sensitivity 91 dB vs 88 dB Play louder with same amount of amplification power
    Number of Woofers 4 vs 2 More woofers
    Height 156mm vs 191mm Easier to fit in smaller spaces

    Reasons to choose JBL Stage A125C over JBL Stage 245C

    Woofer Size 5.24 inches vs 4.5 inches Larger woofer
    Low Frequency Response 75 Hz vs 82 Hz Generates deeper bass
    High Frequency Response 40k Hz vs 25k Hz Generates higher frequency
    Base Surface Area 1137cm2 vs 1598cm2 Takes less floor space
    Price per pair* 350USD vs 399USD costs less (*prices may change depending on the seller, location and time)
    JBL Stage 245C vs JBL Stage A125C Specs Table
    Detailed comparison of specifications
    General JBL Stage 245C JBL Stage A125C
    Brand JBL JBL
    Speaker Type Center channel speaker Center channel speaker
    Power Range 20-150 watts 20-150 watts
    Sensitivity 91 dB 88 dB
    Impedance 6 ohms 6 ohms
    Frequency Response 82-25k Hz 75-40k Hz
    Drivers
    Woofer Quantity 4 2
    Woofer Size 4.5" 5.24"
    Woofer Composition Polycellulose polycellulose
    Woofer Surround Material Rubber n/a
    Tweeter Size 1" 1"
    Tweeter Type Hard-Dome dome with HDI (High Definition Imaging) waveguide technology
    Aimable Tweeter No No
    Midrange Driver N/A" N/A"
    Firing Direction rear n/a
    Physical Specs
    Height 156.0mm (6.1") 191.0mm (7.5")
    Width 740.0mm (29.1") 470.0mm (18.5")
    Depth 216.0mm (8.5") 242.0mm (9.5")
    Weight 12.00kg (26.4lbs) 7.97kg (17.5lbs)
    Enclosure Bass Reflex Passive Radiator
    Finish MDF/Wood-grain vinyl n/a
    Available Colors Espresso,Latte Black
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs No No
    Other
    Parts Warranty 5 years 5 Years
    Labor Warranty 5 years 5 Years

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