In this review, we will be comparing S400 MKII and M126Be, two Passive Bookshelf speakers from Buchardt and Revel. Let's have a brief look at the main features
of Buchardt S400 MKII and Revel M126Be first before getting into our more
detailed comparison.
What size room are the Buchardt S400 MKII and Revel M126Be 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 Buchardt S400 MKII and Revel M126Be 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 S400 MKII and M126Be are 2-way speakers.
| Driver |
Buchardt S400 MKII |
Revel M126Be |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
0.74-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 6-inch
|
1 x 6.5-inch
|
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. On the other hand, the M126Be features a 1" beryllium Hard-Dome Tweeter and 1 x 6.5" DCC Aluminum Woofer .
Frequency Response
S400 MKII has a frequency range of 33-40k HZ whereas M126Be has a frequency range of 54-44k 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 M126Be's min frequency of 54Hz.
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 Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf 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
S400 MKII is a 4 ohms speaker compared to the M126Be 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 S400 MKII can provide this impedance level.
These two speakers also have different sensitivity levels. S400 MKII sensitivity is rated at 88 dB and the M126Be's is rated at 86 dB. This 2 dB difference makes the Buchardt S400 MKII a more sensitive speaker compared to Revel M126Be, 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. 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.
S400 MKII can handle a max power of 200 watts RMS from the amp the whereas M126Be has a max power handling value of 150 watts RMS, 50 watts less than the S400 MKII.
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.
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 Buchardt S400 MKII's and Revel M126Be's external dimensions. Buchardt S400 MKII has external dimensions of 365.0 x 180.0 x 280.0mm ( 14.4 x 7 x 11inch) whereas Revel M126Be has external dimensions of 388.0 x 212.0 x 262.0mm ( 15-1/4 x 8-5/16 x 10-5/16inch) .
Buchardt S400 MKII is 32mm narrower and 23mm shorter than Revel M126Be but it is also 18mm deeper.
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 Buchardt S400 MKII is approximately 504.0cm2 / 78.1inch2 and base area of the Revel M126Be is approximately 555.4cm2 / 86.1inch2. The S400 MKII requires 9% less surface area than the M126Be 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 Buchardt S400 MKII weighs 7.50kg / 16.5lbs and the Revel M126Be weighs 10.00kg / 22lbs. This makes the M126Be 33% heavier than the S400 MKII.
Here is a comparison of how S400 MKII and M126Be's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Revel M126Be?
Here are the items that come with the M126Be:
Bookshelf loudspeakerGrilleFoam port plugOwners Manual
 Max Input Power |
200 watts
vs
150 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
54 Hz
|
Generates deeper bass |
 Passive Radiator |
one 5x8-inch
vs
None
|
Increases the bass performance |
 Height |
365mm
vs
388mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
504cm2 (180x280mm)
vs
555cm2 (212x262mm)
|
Takes less floor space |
 Price per pair* |
2200USD
vs
4400USD
|
costs less (*prices may change depending on the seller, location and time) |
 Nominal Impedance |
8 ohms
vs
4 ohms
|
Less selective with amplifiers |
| Woofer Size |
6.5 inches
vs
6 inches
|
Larger woofer |
 High Frequency Response |
44k Hz
vs
40k Hz
|
Generates higher frequency |
| General |
Buchardt S400 MKII |
Revel PerformaBe M126Be |
| Brand |
Buchardt |
Revel |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
40-200 watts |
50-150 watts |
| Sensitivity |
88 dB |
86 dB |
| Impedance |
4 ohms |
8 ohms |
| Frequency Response |
33-40k HZ |
54-44k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
6" |
6.5" |
| Woofer Composition |
paper |
DCC Aluminum |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
0.74" |
1" |
| Tweeter Type |
aluminum waveguide |
Hard-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
1800Hz |
n/a |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
365.0mm (14.4") |
388.0mm (15.3") |
| Width |
180.0mm (7.1") |
212.0mm (8.3") |
| Depth |
280.0mm (11") |
262.0mm (10.3") |
| Weight |
7.50kg (16.5lbs) |
10.00kg (22lbs) |
| Enclosure |
Passive Radiator |
Bass reflex |
| Finish |
n/a |
Wood/Lacquer |
| Available Colors |
Black, White, Walnut, Rosewood, Light Oak |
Walnut,Black,White,Silver |
| Mounting Bracket |
No |
No |
| Recommended Stand Height |
n/a |
22-26" |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
n/a |
No |
Other |
|
|
| Parts Warranty |
10 years |
5 Years |
| Labor Warranty |
10 years |
5 Years |