In this review, we will be comparing Evoke 30 and S400 MKII, two Passive Bookshelf speakers from Dynaudio and Buchardt.
Let's have a brief look at the main features
of Dynaudio Evoke 20 and Buchardt S400 MKII first before getting into our more
detailed comparison.
| Key Specs | Dynaudio Evoke 20 | Buchardt S400 MKII |
|---|
| Brand | Dynaudio
Denmark · founded 1977 | Buchardt
Denmark · founded 2014 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1.1" | 0.74" aluminum waveguide |
|---|
| Woofer | 7" Magnesium Silicate Polymer | 6" paper |
|---|
| Frequency response | 40-23k Hz | 33-40k Hz |
|---|
| Sensitivity | 86 dB | 88 dB |
|---|
| Impedance | 6 ohms | 4 ohms |
|---|
| Power range | up to 180 watts | 40-200 watts |
|---|
| Weight | 9.90kg / 21.8lbs | 7.50kg / 16.5lbs |
|---|
| Dimensions (H x W x D) | 15" x 8.5" x 12.5"
380.0 x 215.0 x 317.0mm | 14.4" x 7" x 11"
365.0 x 180.0 x 280.0mm |
|---|
What size room are the Dynaudio Evoke 20 and Buchardt S400 MKII 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* |
Dynaudio Evoke 20 |
Buchardt S400 MKII |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Average |
| 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.)
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
Drivers
Both Evoke 30 and S400 MKII are 2-way speakers.
Dynaudio Evoke 20Buchardt S400 MKII
TweeterWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
Dynaudio Evoke 20 |
Buchardt S400 MKII |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1.1-inch
|
0.74-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 7-inch
|
1 x 6-inch
|
Evoke 30 features a 1.1" Cerotar with Hexis Tweeter and 1 x 7" Magnesium Silicate Polymer Woofer with a Crossover frequency at 3200Hz. On the other hand, the S400 MKII features a 0.74" fine weave soft fabric textile aluminum waveguide Tweeter and 1 x 6" paper Woofer with a Crossover frequency at 1800Hz.
Frequency Response
Evoke 30 has a frequency range of 40-23k Hz whereas S400 MKII has a frequency range of 33-40k Hz. With a minimum frequency of 33Hz, the S400 MKII can go significantly deeper on the low side and provide stronger bass compared to the Evoke 30's min frequency of 40Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf 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
Evoke 30 is a 6 ohms speaker compared to the S400 MKII which has a nominal impedance of 4 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 S400 MKII can provide this impedance level.
These two speakers also have different sensitivity levels. Evoke 30 sensitivity is rated at 86 dB and the S400 MKII's is rated at 88 dB. This 2 dB difference makes the Buchardt S400 MKII a more sensitive speaker compared to Dynaudio Evoke 20, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf 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.
S400 MKII can handle a max power of 200 watts RMS, whereas Evoke 30 has a max power handling value of 180 watts RMS, 20 watts less than the S400 MKII.
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.
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 Dynaudio Evoke 20's and Buchardt S400 MKII's external dimensions. Dynaudio Evoke 20 has external dimensions of 380.0 x 215.0 x 317.0mm (15 x 8.5 x 12.1inch) whereas Buchardt S400 MKII has external dimensions of 365.0 x 180.0 x 280.0mm (14.4 x 7 x 11inch).
Dynaudio Evoke 20 is clearly the larger of the two speakers. Its body is 35mm wider, 15mm taller and 37mm deeper than Buchardt S400 MKII.
Below you can see the front view size comparison of Dynaudio Evoke 20 and Buchardt S400 MKII in scale.
Comparison image of Dynaudio Evoke 20 and Buchardt S400 MKII 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 Dynaudio Evoke 20 is approximately 681.6cm2 / 105.6inch2 and base area of the Buchardt S400 MKII is approximately 504.0cm2 / 78.1inch2. The Evoke 30 requires 35% more surface area than the S400 MKII which gives it a small disadvantage on placement in tight spaces.
Here is another comparison that shows both speakers on a BDI Octave Media Cabinet, next to a standard size amplifier and turntable in scale:
Size Comparison image of Dynaudio Evoke 20 and Buchardt S400 MKII on a Media Console
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 Dynaudio Evoke 20 weighs 9.90kg / 21.8lbs and the Buchardt S400 MKII weighs 7.50kg / 16.5lbs. This makes the Evoke 30 32% heavier than the S400 MKII.
Here is a comparison of how Evoke 30 and S400 MKII's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Dynaudio Evoke 20?
Here are the items that are included inside the box of Evoke 30:
 Nominal Impedance |
6 ohms
vs
4 ohms
|
Less selective with amplifiers |
 Woofer Size |
7 inches
vs
6 inches
|
Larger woofer |
 Max Input Power |
200 watts
vs
180 watts
|
Handle more power from your amplifier |
 Sensitivity |
88 dB
vs
86 dB
|
Play louder with same amount of amplification power |
|
Low Frequency Response |
33 Hz
vs
40 Hz
|
Generates deeper bass |
 High Frequency Response |
40k Hz
vs
23k Hz
|
Generates higher frequency |
 Passive Radiator |
one 5x8-inch
vs
None
|
Increases the bass performance |
 Height |
365mm
vs
380mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
504cm2
vs
681cm2
|
Takes less floor space |
 Price per pair* |
2200USD
vs
4798USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Dynaudio Evoke 20 |
Buchardt S400 MKII |
| Brand |
Dynaudio |
Buchardt |
| Speaker Type |
Floor-standing speaker |
Bookshelf speakers |
| Power Range |
up to 180 watts |
40-200 watts |
| Sensitivity |
86 dB |
88 dB |
| Impedance |
6 ohms |
4 ohms |
| Frequency Response |
40-23k Hz |
33-40k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
7" |
6" |
| Woofer Composition |
Magnesium Silicate Polymer |
paper |
| Woofer Surround Material |
Rubber |
n/a |
| Tweeter Size |
1.1" |
0.74" |
| Tweeter Type |
n/a |
aluminum waveguide |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
3200Hz |
1800Hz |
| Firing Direction |
rear |
n/a |
Physical Specs |
|
|
| Height |
380.0mm (15") |
365.0mm (14.4") |
| Width |
215.0mm (8.5") |
180.0mm (7.1") |
| Depth |
317.0mm (12.5") |
280.0mm (11") |
| Weight |
9.90kg (21.8lbs) |
7.50kg (16.5lbs) |
| Enclosure |
Bass Reflex |
Passive Radiator |
| Finish |
MDF/Wood veneer |
n/a |
| Available Colors |
Black |
Black, White, Walnut, Rosewood, Light Oak |
| Mounting Bracket |
No |
No |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
n/a |
Other |
|
|
| Parts Warranty |
5 Years (8 Years registered) |
10 years |
| Labor Warranty |
5 Years (8 Years registered) |
10 years |
These sit in different price classes - Dynaudio Evoke 20 costs roughly 2.2x what Buchardt S400 MKII 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 | B | Buchardt S400 MKII digs deeper - 33Hz against 40Hz. A subwoofer would even that out. |
| Amplifier needs | B | Buchardt S400 MKII is more sensitive (88dB vs 86dB), so it goes louder on the same amplifier. |
| Amplifier match | A | Dynaudio Evoke 20 is the easier load at 6 ohms; the other is 4 ohms and wants an amplifier rated for it. |
| Headroom | evenly matched | Similar power handling (180W vs 200W). |
| Size | depends | Buchardt S400 MKII is easier to place; Dynaudio Evoke 20 is bigger, which usually goes with fuller bass. Your room decides. |
| Cabinet | depends | Ported vs Passive Radiator. |
| Price | B | Buchardt S400 MKII is cheaper - $2,200 against $4,798, about 54% less; arguably a different class. |
A Dynaudio Evoke 20 B Buchardt S400 MKII
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?
Buchardt S400 MKII 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 40Hz anyway, so judge these on the other rows instead. In a large or open-plan room, Dynaudio Evoke 20 has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Buchardt S400 MKII 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.