In this review, we will be comparing two different type of speakers . MoFi SourcePoint 888 is a Bookshelf speaker whereas the Q Acoustics 5040 is a Floor-standing speaker.
Let's have a brief look at the main features
of MoFi SourcePoint 888 and Q Acoustics 5040 first before getting into our more
detailed comparison.
MoFi SourcePoint 888 Key Specs
- 3-way Design
- 1.25" wide roll soft dome Tweeter
- 8" Midrange
- 2 x 8" Paper-pulp Woofer
- 32-30k Hz Frequency Response
- 87dB Sensitivity
- Impedance: 6ohms
- Power Range:Up to 200watts
- Weight:43.00kg
- Dimensions (H x W x D): 1070.0" x 12.6" x 16.1"( 1070 x 320 x 410mm )
Q Acoustics 5040 Key Specs
- 2-way Design
- 1" Soft-dome Tweeter
- 2 x 5" Continuous Curved Cone Woofer
- 39-30k Hz Frequency Response
- 91.5 dB Sensitivity
- Impedance: 6ohms
- Power Range:25-150watts
- Weight:18.05kg
- Dimensions (H x W x D): 969.0" x 14-1/4" x 11-1/2"( 969.0 x 362.0 x 293.0mm )
What size room are the MoFi SourcePoint 888 and Q Acoustics 5040 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* |
MoFi SourcePoint 888 |
Q Acoustics 5040 |
| Near-field |
Poor |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Good |
Good |
| Large Room |
Good |
Good |
| Very Large Room |
Average |
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 MoFi SourcePoint 888 and Q Acoustics 5040 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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through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
One of the fundamental differences between these two speakers is that SourcePoint 888 is a 3-way design whereas the Q Acoustics 5040 is a 2-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.
| Driver |
MoFi SourcePoint 888 |
Q Acoustics 5040 |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1.25-inch
|
1-inch
|
|
Midrange
|
1 x 8-inch |
- |
|
Woofer
|
2 x 8-inch
|
2 x 5-inch
|
SourcePoint 888 features a 1.25" wide roll soft dome Tweeter , a 8" Midrange and 2 x 8" Paper-pulp Woofer with a Crossover frequency at 130Hz and 1.6kHz . On the other hand, the Q Acoustics 5040 features a 1" Soft-dome Tweeter and 2 x 5" Continuous Curved Cone Woofer with a Crossover frequency at 2500 Hz.
Frequency Response
SourcePoint 888 has a frequency range of 32-30k Hz whereas Q Acoustics 5040 has a frequency range of 39-30k Hz. With a minimum frequency of 32Hz, the SourcePoint 888 can go significantly deeper on the low side and provide stronger bass compared to the Q Acoustics 5040's min frequency of 39Hz.
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.
Impedance and Sensitivity
SourcePoint 888 and Q Acoustics 5040 have the same Impedance of 6 ohms but where they differ is the sensitivity levels. SourcePoint 888 sensitivity is rated at 87dB and the Q Acoustics 5040's is at 91.5 dB. This 5 dB difference makes the Q Acoustics 5040 a more sensitive speaker compared to MoFi SourcePoint 888, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf 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.
SourcePoint 888 can handle a max power of 200 watts RMS from the amp the whereas Q Acoustics 5040 has a max power handling value of 150 watts RMS, 50 watts less than the SourcePoint 888.
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
SourcePoint 888 features 5-Way post posts which make bi-amping or bi-wiring possible. Q Acoustics 5040 has a Binding post which doesn't feature bi-amping/bi-wiring.
Q Acoustics 5040's Binding post terminals
Cabinet Type and Port Position
Both SourcePoint 888 and Q Acoustics 5040 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 MoFi SourcePoint 888's and Q Acoustics 5040's external dimensions. MoFi SourcePoint 888 has external dimensions of 1070 x 320 x 410mm ( 42.1 x 12.6 x 16.1 inch) whereas Q Acoustics 5040 has external dimensions of 969.0 x 362.0 x 293.0mm ( 38-1/8inch x 14-1/4inch x 11-1/2inch ) .
Q Acoustics 5040 is 101mm shorter and 117mm less deeper than MoFi SourcePoint 888 but it is also 42mm 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 MoFi SourcePoint 888 is approximately 1312.0cm2 / 203.4inch2 and base area of the Q Acoustics 5040 is approximately 1060.7cm2 / 164.4inch2. The SourcePoint 888 requires 24% more surface area than the Q Acoustics 5040 which gives it a small disadvantage on placement in tight spaces.
What's in the Box of Q Acoustics 5040?
Here are the items that come with the Q Acoustics 5040:
1x 5040 loudspeaker1x Owners manual 2x Foam bung4x Spike feet 4x Spike cover 4x M5 screw 2x Rear stabiliser
Max Input Power 
Driver Setup 
Minimum Impedance 
Woofer Size 
Bi-Amping and Bi-Wiring 
Sensitivity 
Height 
Base Surface Area 
Price per pair*