In this review, we will be comparing DALI Spektor 6 and S50, two Passive Floor-standing speakers from DALI and Polk Audio. Let's have a brief look at the main features
of DALI Spektor 6 and Polk S50 first before getting into our more
detailed comparison.
What size room are the DALI Spektor 6 and Polk S50 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 DALI Spektor 6 and Polk S50 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 DALI Spektor 6 and S50 are 2-way speakers.
| Driver |
DALI Spektor 6 |
Polk S50 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 6.5-inch
|
2 x 5.25-inch
|
DALI Spektor 6 features a 1" Soft-Dome Tweeter and 2 x 6.5" Wood Fiber Woofer with a Crossover frequency at 2500Hz. On the other hand, the S50 features a 1" Terylene Dome Tweeter and 2 x 5.25" Mica-reinforced polypropylene Woofer with a Crossover frequency at 2500Hz.
Frequency Response
DALI Spektor 6 has a frequency range of 43-26k Hz whereas S50 has a frequency range of 33-40k Hz. With a minimum frequency of 33Hz, the S50 can go significantly deeper on the low side and provide stronger bass compared to the DALI Spektor 6's min frequency of 43Hz.
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
DALI Spektor 6 is a 6 ohms speaker compared to the S50 which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. DALI Spektor 6 sensitivity is rated at 88.5 dB and the S50's is rated at 89 dB.
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
S50 features 5-way post posts which make bi-amping or bi-wiring possible. DALI Spektor 6 has a Binding post which doesn't feature bi-amping/bi-wiring.
Polk S50's 5-way post terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
DALI Spektor 6 has a rear firing port whereas S50 has a bottom firing ports. Polk S50's bottom-firing port gives more flexibility in placement in regards to proximity to walls compared to DALI Spektor 6 with its rear-firing port.
Polk S50 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 DALI Spektor 6's and Polk S50's external dimensions. DALI Spektor 6 has external dimensions of 972.0 x 195.0 x 313.0mm ( 38.3 x 7.7 x 12.3inch) whereas Polk S50 has external dimensions of 951.0 x 262.0 x 281.0mm ( 37-7/16 x 10-5/16 x 11-1/16inch) .
Polk S50 is 21mm shorter and 32mm less deeper than DALI Spektor 6 but it is also 67mm 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 DALI Spektor 6 is approximately 610.4cm2 / 94.6inch2 and base area of the Polk S50 is approximately 736.2cm2 / 114.1inch2. The DALI Spektor 6 requires 17% less surface area than the S50 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 DALI Spektor 6 weighs 13.80kg / 30.4lbs and the Polk S50 weighs 14.50kg / 31.9lbs. This makes the S50 5% heavier than the DALI Spektor 6.
Here is a comparison of how DALI Spektor 6 and S50's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
What's in the Box of DALI Spektor 6?
Here are the items that are included inside the box of DALI Spektor 6:
Floorstanding loudspeaker GrilleRubber Feet4 Spike-feetManual
What's in the Box of Polk S50?
Here are the items that come with the S50:
Floorstanding loudspeakerGrille (attached)4 Feet (pre-installed)Owners ManualOnline Product Registration
 Woofer Size |
6.5 inches
vs
5.25 inches
|
Larger woofer |
 Base Surface Area |
610cm2 (195x313mm)
vs
736cm2 (262x281mm)
|
Takes less floor space |
 Nominal Impedance |
8 ohms
vs
6 ohms
|
Less selective with amplifiers |
| Low Frequency Response |
33 Hz
vs
43 Hz
|
Generates deeper bass |
 High Frequency Response |
40k Hz
vs
26k Hz
|
Generates higher frequency |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Height |
951mm
vs
972mm
|
Easier to fit in smaller spaces |
| General |
DALI Spektor 6 |
Polk Audio Signature S50 |
| Brand |
DALI |
Polk Audio |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
30-150 watts |
20-150 watts |
| Sensitivity |
88.5 dB |
89 dB |
| Impedance |
6 ohms |
8 ohms |
| Frequency Response |
43-26k Hz |
33-40k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
6.5" |
5.25" |
| Woofer Composition |
Wood Fiber |
Mica-reinforced polypropylene |
| Woofer Surround Material |
Rubber |
Butyl rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Soft-Dome |
Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
2500Hz |
2500Hz |
| Firing Direction |
rear |
bottom |
Physical Specs |
|
|
| Height |
972.0mm (38.3") |
951.0mm (37.4") |
| Width |
195.0mm (7.7") |
262.0mm (10.3") |
| Depth |
313.0mm (12.3") |
281.0mm (11.1") |
| Weight |
13.80kg (30.4lbs) |
14.50kg (31.9lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain vinyl |
Meddite MDF |
| Available Colors |
Black Ash, Walnut, White |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
Yes |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |