In this review, we will be comparing Rubikore 8 and F328Be, two Passive Floor-standing speakers from DALI and Revel.
Let's have a brief look at the main features
of DALI Rubikore 8 and Revel PerformaBe F328Be first before getting into our more
detailed comparison.
| Key Specs | DALI Rubikore 8 | Revel PerformaBe F328Be |
|---|
| Brand | DALI
Denmark · founded 1983 | Revel
United States · founded 1996 |
|---|
| Design | 2-way | 3-way |
|---|
| Tweeter | 1.14" Hybrid dome + planar | 1" |
|---|
| Midrange | — | 5.25" |
|---|
| Woofer | 3 x 6.5" Wood fibre | 3 x 8.0" Aluminum |
|---|
| Frequency response | 38-34k Hz | 26-40k Hz |
|---|
| Sensitivity | 90.5 dB | 91 dB |
|---|
| Impedance | 4 ohms | 8 ohms |
|---|
| Power range | 40-250 watts | 50-300 watts |
|---|
| Weight | — | 51.18kg / 112.6lbs |
|---|
| Dimensions (H x W x D) | 43.31" x 8.66" x 17.48"
1100 x 220 x 444 mm | 50-15/16" x 13-1/2" x 17-5/8"
1294.0 x 343.0 x 448.0mm |
|---|
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
Drivers
One of the fundamental differences between these two speakers is that Rubikore 8 is a 2-way design whereas the F328Be is a 3-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.
DALI Rubikore 8Revel PerformaBe F328Be
TweeterMidrangeWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
DALI Rubikore 8 |
Revel PerformaBe F328Be |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1.14-inch
|
1-inch
|
|
Midrange
|
- |
1 x 5.25-inch |
|
Woofer
|
3 x 6.5-inch
|
3 x 8.0-inch
|
Rubikore 8 features a 1.14" Hybrid dome + planar Tweeter and 3 x 6.5" Wood fibre Woofer with a Crossover frequency at 500 / 800 / 2400 / 14000Hz. On the other hand, the F328Be features a 1" Tweeter, a 5.25" Midrange and 3 x 8.0" Aluminum Woofer.
Frequency Response
Rubikore 8 has a frequency range of 38-34k Hz whereas F328Be has a frequency range of 26-40k Hz. With a minimum frequency of 26Hz, the F328Be can go significantly deeper on the low side and provide stronger bass compared to the Rubikore 8's min frequency of 38Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
Rubikore 8 is a 4 ohms speaker compared to the F328Be which has a nominal impedance of 8 ohms. Lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit especially when played at high volume levels, so make sure the amp you pair with the Rubikore 8 can provide this impedance level.
These two speakers also have different sensitivity levels. Rubikore 8 sensitivity is rated at 90.5 dB and the F328Be's is rated at 91 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. Staying
within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.
F328Be can handle a max power of 300 watts RMS, whereas Rubikore 8 has a max power handling value of 250 watts RMS, 50 watts less than the F328Be.
Note that higher power handling does not make a speaker louder: that depends mainly on
sensitivity and impedance. The calculator below shows how loud each of these actually plays
on a real amplifier.
Which plays louder on your amplifier?
Starting with a popular amplifier - change it to the one you own, or any you are
considering, and watch both numbers move.
Input Type and Bi-Amping / Bi-Wiring
Both Rubikore 8 and F328Be features dual binding post speaker terminals for bi-amping or bi-wiring.
Physical Specs
The size of a speaker can sometimes be 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 Rubikore 8's and Revel PerformaBe F328Be's external dimensions. DALI Rubikore 8 has external dimensions of 1100 x 220 x 444 mm () whereas Revel PerformaBe F328Be has external dimensions of 1294.0 x 343.0 x 448.0mm (50-15/16 x 13-1/2 x 17-5/8inch).
Revel PerformaBe F328Be is clearly the larger of the two speakers. Its body is 123mm wider, 194mm taller and 4mm deeper than DALI Rubikore 8.
Size, drawn to scale
Both speakers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same surface and pushed back to the same wall, so the deeper one visibly sticks out further.
Revel PerformaBe F328Be needs about 57% more floor or shelf area. Revel PerformaBe F328Be is 194mm 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 DALI Rubikore 8 is approximately 976.8cm2 / 151.4inch2 and base area of the Revel PerformaBe F328Be is approximately 1536.6cm2 / 238.2inch2. The Rubikore 8 requires 36% less surface area than the F328Be which gives it a small advantage on placement in tight spaces.
What's in the Box of Revel PerformaBe F328Be?
Here are the items that come with the F328Be:
- Floorstanding loudspeaker
- Grille
- 4 Spike feet
- 4 Locking rings
- 4 Washers
- 2 Terminal jumpers (pre-installed)
- 2 Foam port plugs
- Owners Manual