In this review, we will be comparing AK6 and F328Be, two Passive Floor-standing speakers from Klipsch and Revel.
Let's have a brief look at the main features
of Klipsch Klipschorn AK6 and Revel PerformaBe F328Be first before getting into our more
detailed comparison.
| Key Specs | Klipsch Klipschorn AK6 | Revel PerformaBe F328Be |
|---|
| Brand | Klipsch
United States · founded 1946 | Revel
United States · founded 1996 |
|---|
| Design | 3-way | 3-way |
|---|
| Tweeter | 1" Tractrix horn | 1" |
|---|
| Midrange | 2" | 5.25" |
|---|
| Woofer | 15" fiber-composite with a trihedral exponential folded horn | 3 x 8.0" Aluminum |
|---|
| Frequency response | 33-20k Hz | 26-40k Hz |
|---|
| Sensitivity | 105 dB | 91 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | up to 100 watts | 50-300 watts |
|---|
| Weight | 100.00kg / 220lbs | 51.18kg / 112.6lbs |
|---|
| Dimensions (H x W x D) | 53" x 31-1/4" x 28-1/4"
1347.0 x 794.0 x 718.0mm | 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.
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Drivers
Both AK6 and F328Be are 3-way speakers.
Klipsch Klipschorn AK6Revel 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 |
Klipsch Klipschorn AK6 |
Revel PerformaBe F328Be |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 2-inch |
1 x 5.25-inch |
|
Woofer
|
1 x 15-inch
|
3 x 8.0-inch
|
AK6 features a 1" polyimide diaphragm compression Tractrix horn Tweeter, a 2" Midrange and 1 x 15" fiber-composite with a trihedral exponential folded horn Woofer. On the other hand, the F328Be features a 1" Tweeter, a 5.25" Midrange and 3 x 8.0" Aluminum Woofer.
Frequency Response
AK6 has a frequency range of 33-20k 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 AK6's min frequency of 33Hz.
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
AK6 and F328Be have the same Impedance of 8 ohms but where they differ is the sensitivity levels. AK6 sensitivity is rated at 105 dB and the F328Be's is at 91 dB. This 14 dB difference makes the Klipsch Klipschorn AK6 a more sensitive speaker compared to Revel PerformaBe F328Be, hence will play louder with the same amount of watts.
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 AK6 has a max power handling value of 100 watts RMS, 200 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 AK6 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 Klipsch Klipschorn AK6's and Revel PerformaBe F328Be's external dimensions. Klipsch Klipschorn AK6 has external dimensions of 1347.0 x 794.0 x 718.0mm (53 x 31-1/4 x 28-1/4inch) 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).
Klipsch Klipschorn AK6 is clearly the larger of the two speakers. Its body is 451mm wider, 53mm taller and 270mm deeper than Revel PerformaBe F328Be.
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 Klipsch Klipschorn AK6 is approximately 5700.9cm2 / 883.6inch2 and base area of the Revel PerformaBe F328Be is approximately 1536.6cm2 / 238.2inch2. The AK6 requires 271% more surface area than the F328Be 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 Klipsch Klipschorn AK6 weighs 100.00kg / 220lbs and the Revel PerformaBe F328Be weighs 51.18kg / 112.6lbs. This makes the AK6 95% heavier than the F328Be.
Here is a comparison of how AK6 and F328Be'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 Klipsch Klipschorn AK6?
Here are the items that are included inside the box of AK6:
- 2 Loudspeaker cabinets
- 2 Subwoofer cabinets
- 2 Grilles
- Owners Manual
- Congratulations letter
- Klipsch brochure
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
 Sensitivity |
105 dB
vs
91 dB
|
Play louder with same amount of amplification power |
 Woofer Size |
15 inches
vs
8.0 inches
|
Larger woofer |
 Price per pair* |
16498USD
vs
17600USD
|
costs less (*prices may change depending on the seller, location and time) |
 Max Input Power |
300 watts
vs
100 watts
|
Handle more power from your amplifier |
|
Number of Woofers |
3
vs
1
|
More woofers |
|
Low Frequency Response |
26 Hz
vs
33 Hz
|
Generates deeper bass |
 High Frequency Response |
40k Hz
vs
20k Hz
|
Generates higher frequency |
 Height |
1294mm
vs
1347mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1536cm2
vs
5700cm2
|
Takes less floor space |
| General |
Klipsch Heritage Klipschorn AK6 |
Revel PerformaBe F328Be |
| Brand |
Klipsch |
Revel |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 100 watts |
50-300 watts |
| Sensitivity |
105 dB |
91 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
33-20k Hz |
26-40k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
3 |
| Woofer Size |
15" |
8.0" |
| Woofer Composition |
fiber-composite with a trihedral exponential folded horn |
Aluminum |
| Woofer Surround Material |
Rubber |
n/a |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Tractrix horn |
n/a |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
2" |
5.25" |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
1347.0mm (53") |
1294.0mm (50.9") |
| Width |
794.0mm (31.3") |
343.0mm (13.5") |
| Depth |
718.0mm (28.3") |
448.0mm (17.6") |
| Weight |
100.00kg (220lbs) |
51.18kg (112.6lbs) |
| Enclosure |
Acoustic Suspension |
Bass Reflex |
| Finish |
MDF/Wood veneer |
n/a |
| Available Colors |
American Walnut, Black Ash, Natural Cherry |
Gloss Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
10 Years |
5 Years |
| Labor Warranty |
10 Years |
5 Years |
No single best speaker here - they are built to different priorities, and the right one depends on your room, your amplifier and what you listen to.
| Area | Better | Why |
|---|
| Bass | B | Revel PerformaBe F328Be digs deeper - 26Hz against 33Hz. A subwoofer would even that out. |
| Amplifier needs | A | Klipsch Klipschorn AK6 is more sensitive (105dB vs 91dB), so it goes louder on the same amplifier. |
| Headroom | B | Revel PerformaBe F328Be takes more power (300W vs 100W) - more in hand in a big room. |
| Size | depends | Revel PerformaBe F328Be is easier to place; Klipsch Klipschorn AK6 is bigger, which usually goes with fuller bass. Your room decides. |
| Cabinet | depends | Sealed vs Ported. Sealed is tighter and happier near a wall; ported digs lower but wants space behind it. |
| Expandability | depends | Klipsch Klipschorn AK6: bi-amping; Revel PerformaBe F328Be: bi-amping. Klipsch Klipschorn AK6 sits in a wider range (12 models), so a matched surround system is easier later. |
| Price | evenly matched | Much the same money ($16,498 vs $17,600 a pair). |
A Klipsch Klipschorn AK6 B Revel PerformaBe F328Be
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
Revel PerformaBe F328Be has the edge on paper, though the margin is not large. The rows marked "depends" may matter more to you than the score does. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 33Hz anyway, so judge these on the other rows instead. In a large or open-plan room, Klipsch Klipschorn AK6 has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Revel PerformaBe F328Be is the easier speaker to get right.
And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.