In this review, we will be comparing Synchrony T600 and AK6, two Passive Floor-standing speakers from PSB and Klipsch.
Let's have a brief look at the main features
of PSB Synchrony T600 and Klipsch Klipschorn AK6 first before getting into our more
detailed comparison.
| Key Specs | PSB Synchrony T600 | Klipsch Klipschorn AK6 |
|---|
| Brand | PSB
Canada · founded 1972 | Klipsch
United States · founded 1946 |
|---|
| Design | 3-way | 3-way |
|---|
| Tweeter | 1" Dome | 1" Tractrix horn |
|---|
| Midrange | 5.25" | 2" |
|---|
| Woofer | 3 x 6.5" Carbon fiber | 15" fiber-composite with a trihedral exponential folded horn |
|---|
| Frequency response | 24-23k Hz | 33-20k Hz |
|---|
| Sensitivity | 89 dB | 105 dB |
|---|
| Impedance | 4 ohms | 8 ohms |
|---|
| Power range | 20-300 watts | up to 100 watts |
|---|
| Weight | 34.90kg / 76.8lbs | 100.00kg / 220lbs |
|---|
| Dimensions (H x W x D) | 41-1/4" x 9" x 13-1/2"
1048.0 x 228.0 x 343.0mm | 53" x 31-1/4" x 28-1/4"
1347.0 x 794.0 x 718.0mm |
|---|
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 Synchrony T600 and AK6 are 3-way speakers.
PSB Synchrony T600Klipsch Klipschorn AK6
TweeterMidrangeWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
PSB Synchrony T600 |
Klipsch Klipschorn AK6 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 5.25-inch |
1 x 2-inch |
|
Woofer
|
3 x 6.5-inch
|
1 x 15-inch
|
Synchrony T600 features a 1" titanium with ferrofluid cooling and neodymium magnet Dome Tweeter, a 5.25" Midrange and 3 x 6.5" Carbon fiber Woofer with a Crossover frequency at 450Hz and 1800Hz. On the other hand, the 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.
Frequency Response
Synchrony T600 has a frequency range of 24-23k Hz whereas AK6 has a frequency range of 33-20k Hz. With a minimum frequency of 24Hz, the Synchrony T600 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
Synchrony T600 is a 4 ohms speaker compared to the AK6 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 Synchrony T600 can provide this impedance level.
These two speakers also have different sensitivity levels. Synchrony T600 sensitivity is rated at 89 dB and the AK6's is rated at 105 dB. This 16 dB difference makes the Klipsch Klipschorn AK6 a more sensitive speaker compared to PSB Synchrony T600, 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.
Synchrony T600 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 Synchrony T600.
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 Synchrony T600 and AK6 features dual binding post speaker terminals for bi-amping or bi-wiring.
PSB Synchrony T600's Binding post terminals allows 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 PSB Synchrony T600's and Klipsch Klipschorn AK6's external dimensions. PSB Synchrony T600 has external dimensions of 1048.0 x 228.0 x 343.0mm (41-1/4 x 9 x 13-1/2inch) whereas Klipsch Klipschorn AK6 has external dimensions of 1347.0 x 794.0 x 718.0mm (53 x 31-1/4 x 28-1/4inch).
Klipsch Klipschorn AK6 is clearly the larger of the two speakers. Its body is 566mm wider, 299mm taller and 375mm deeper than PSB Synchrony T600.
Below you can see the front view size comparison of PSB Synchrony T600 and Klipsch Klipschorn AK6 in scale.
Comparison image of PSB Synchrony T600 and Klipsch Klipschorn AK6 Size and External Dimensions
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 PSB Synchrony T600 is approximately 782.0cm2 / 121.2inch2 and base area of the Klipsch Klipschorn AK6 is approximately 5700.9cm2 / 883.6inch2. The Synchrony T600 requires 86% less surface area than the AK6 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 PSB Synchrony T600 weighs 34.90kg / 76.8lbs and the Klipsch Klipschorn AK6 weighs 100.00kg / 220lbs. This makes the AK6 187% heavier than the Synchrony T600.
Here is a comparison of how Synchrony T600 and AK6'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 PSB Synchrony T600?
Here are the items that are included inside the box of Synchrony T600:
- Floorstanding loudspeakr
- Grille
- 2 Binding-post jumpers (pre-installed)
- 4 Isolation feet
- 2 Port plugs
- Owners Manual
- Warranty Card
What's in the Box of Klipsch Klipschorn AK6?
Here are the items that come with the AK6:
- 2 Loudspeaker cabinets
- 2 Subwoofer cabinets
- 2 Grilles
- Owners Manual
- Congratulations letter
- Klipsch brochure
 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 |
24 Hz
vs
33 Hz
|
Generates deeper bass |
 High Frequency Response |
23k Hz
vs
20k Hz
|
Generates higher frequency |
 Height |
1048mm
vs
1347mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
782cm2
vs
5700cm2
|
Takes less floor space |
 Price per pair* |
8000USD
vs
16498USD
|
costs less (*prices may change depending on the seller, location and time) |
 Sensitivity |
105 dB
vs
89 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
4 ohms
|
Less selective with amplifiers |
|
Woofer Size |
15 inches
vs
6.5 inches
|
Larger woofer |
| General |
PSB Synchrony T600 |
Klipsch Heritage Klipschorn AK6 |
| Brand |
PSB |
Klipsch |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
20-300 watts |
up to 100 watts |
| Sensitivity |
89 dB |
105 dB |
| Impedance |
4 ohms |
8 ohms |
| Impedance |
4 ohms |
n/a |
| Frequency Response |
24-23k Hz |
33-20k Hz |
Drivers |
|
|
| Woofer Quantity |
3 |
1 |
| Woofer Size |
6.5" |
15" |
| Woofer Composition |
Carbon fiber |
fiber-composite with a trihedral exponential folded horn |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Dome |
Tractrix horn |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
5.25" |
2" |
| Crossover Frequency |
450Hz and 1800Hz |
n/a |
| Firing Direction |
rear |
n/a |
Physical Specs |
|
|
| Height |
1048.0mm (41.3") |
1347.0mm (53") |
| Width |
228.0mm (9") |
794.0mm (31.3") |
| Depth |
343.0mm (13.5") |
718.0mm (28.3") |
| Weight |
34.90kg (76.8lbs) |
100.00kg (220lbs) |
| Enclosure |
Bass Reflex |
Acoustic Suspension |
| Finish |
MDF/Lacquer |
MDF/Wood veneer |
| Available Colors |
Gloss Black, Satin Walnut |
American Walnut, Black Ash, Natural Cherry |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
5 Years |
10 Years |
| Labor Warranty |
5 Years |
10 Years |
These sit in different price classes - Klipsch Klipschorn AK6 costs roughly 2.1x what PSB Synchrony T600 does. Expect it to lead on paper; the question is whether the gap is audible enough in your room to be worth it.
| Area | Better | Why |
|---|
| Bass | A | PSB Synchrony T600 digs deeper - 24Hz against 33Hz. A subwoofer would even that out. |
| Amplifier needs | B | Klipsch Klipschorn AK6 is more sensitive (105dB vs 89dB), so it goes louder on the same amplifier. |
| Amplifier match | B | Klipsch Klipschorn AK6 is the easier load at 8 ohms; the other is 4 ohms and wants an amplifier rated for it. |
| Headroom | A | PSB Synchrony T600 takes more power (300W vs 100W) - more in hand in a big room. |
| Size | depends | PSB Synchrony T600 is easier to place; Klipsch Klipschorn AK6 is bigger, which usually goes with fuller bass. Your room decides. |
| Cabinet | depends | Ported vs Sealed. Sealed is tighter and happier near a wall; ported digs lower but wants space behind it. |
| Expandability | depends | PSB Synchrony T600: bi-amping; Klipsch Klipschorn AK6: bi-amping. Klipsch Klipschorn AK6 sits in a wider range (12 models), so a matched surround system is easier later. |
| Price | A | PSB Synchrony T600 is cheaper - $8,000 against $16,498, about 52% less; arguably a different class. |
A PSB Synchrony T600 B Klipsch Klipschorn AK6
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?
Neither runs away with it - they trade advantages. Let the "depends" rows and your own room settle it. 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, PSB Synchrony T600 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.