In this review, we will be comparing Q750 and Oberon 5, two Passive Floor-standing speakers from KEF and DALI.
Let's have a brief look at the main features
of KEF Q750 and DALI Oberon 5 first before getting into our more
detailed comparison.
KEF Q750 Key Specs
- 2-way Design
- 11th Generation Uni-Q Driver
- 1" Dome Tweeter
- 2 x 6.5" Aluminum Woofer
- 48-28k Hz Frequency Response
- 88 dB Sensitivity
- Impedance: 8ohms
- Power Range:15-150watts
- Weight:16.59kg
- Dimensions (H x W x D): 945.0" x 12-7/8" x 12-3/8"( 945.0 x 328.0 x 315.0mm )
DALI Oberon 5 Key Specs
- 2-way Design
- 1.125" Soft-Dome Tweeter
- 2 x 5.25" Wood Fiber Woofer
- 39-26k Hz Frequency Response
- 88 dB Sensitivity
- Impedance: 6ohms
- Power Range:30-150watts
- Weight:10.80kg
- Dimensions (H x W x D): 832.0" x 7-15/16" x 10-7/8"( 832.0 x 202.0 x 277.0mm )
What size room are the KEF Q750 and DALI Oberon 5 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* |
KEF Q750 |
DALI Oberon 5 |
| Near-field |
Bad |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Good |
Good |
| Large Room |
Good |
Good |
| 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 KEF Q750 and DALI Oberon 5 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 Q750 and Oberon 5 are 2-way speakers.
| Driver |
KEF Q750 |
DALI Oberon 5 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1.125-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 6.5-inch
|
2 x 5.25-inch
|
Q750 features a 1" vented aluminum Dome Tweeter and 2 x 6.5" Aluminum Woofer with a Crossover frequency at 2500Hz. On the other hand, the Oberon 5 features a 1.125" Soft-Dome Tweeter and 2 x 5.25" Wood Fiber Woofer with a Crossover frequency at 2400Hz.
Frequency Response
Q750 has a frequency range of 48-28k Hz whereas Oberon 5 has a frequency range of 39-26k Hz. With a minimum frequency of 39Hz, the Oberon 5 can go significantly deeper on the low side and provide stronger bass compared to the Q750's min frequency of 48Hz.
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 Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing 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
Q750 is a 8 ohms speaker compared to the Oberon 5 which has a nominal impedance of 6 ohms.
On the other hand, they have the same sensitivity of 88 dBdB.
Sensitivity
Floor-standing 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
Q750 features Post type posts and Oberon 5 has a Post type posts. None of these speakers feature bi-amping/bi-wiring.
KEF Q750's Binding post terminals
DALI Oberon 5's Post terminals
Cabinet Type and Port Position
Q750 has a front firing port whereas Oberon 5 has a rear firing ports. KEF Q750's front-firing port gives more flexibility in placement in regards to proximity to walls compared to DALI Oberon 5 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 KEF Q750's and DALI Oberon 5's external dimensions. KEF Q750 has external dimensions of 945.0 x 328.0 x 315.0mm ( 37-3/16 x 12-7/8 x 12-3/8inch) whereas DALI Oberon 5 has external dimensions of 832.0 x 202.0 x 277.0mm ( 32-3/4 x 7-15/16 x 10-7/8inch) .
KEF Q750 is clearly the larger of the two speakers. Its body is 126mm wider, 113mm taller and 38mm deeper than DALI Oberon 5.
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 KEF Q750 is approximately 1033.2cm2 / 160.1inch2 and base area of the DALI Oberon 5 is approximately 559.5cm2 / 86.7inch2. The Q750 requires 85% more surface area than the Oberon 5 which gives it a small disadvantage on placement in tight spaces.