SpeakerDecision
  • SPEAKERS by TYPE
    • Passive Bookshelf Speakers
    • Passive Floor-standing Speakers
    • Passive Center Channel Speakers
    • Passive In-wall Speakers
    • All Passive Speakers
    • Powered Subwoofers
    • Powered Stereo Speakers
  • AMPLIFIERS
  • SMART FIND

Buchardt P300 vs Buchardt S400 Comparison

x
Speaker to replace
Change

Buchardt P300

Passive Bookshelf | 37-40k HZ

Buchardt P300
CHECK PRICE
Change
    
Buchardt S400

Passive Bookshelf | 33-40 kHz

Buchardt S400
CHECK PRICE
Buchardt P300 Buchardt P300
See at AMAZON
Buchardt S400 Buchardt S400
See at AMAZON
Buchardt P300
See at AMAZON
Buchardt S400
See at AMAZON
Buchardt P300 vs Buchardt S400 Speaker Comparison

In this review, we will be comparing P300 and S400, two Passive Bookshelf speakers by Buchardt

Let's have a brief look at the main features of Buchardt P300 and Buchardt S400 first before getting into our more detailed comparison.

Buchardt P300 Key Specs

  • 2-way Design
  • 0.74" aluminum waveguide Tweeter
  • 6" paper Woofer
  • 37-40k HZ Frequency Response
  • 86 dB Sensitivity
  • Impedance: 4ohms
  • Power Range:50 - 200watts
  • Weight:6.30kg
  • Dimensions (H x W x D): 365.0" x 7" x 11"( 365.0 x 180.0 x 280.0mm )

Buchardt S400 Key Specs

  • 2-way Design
  • 0.74" aluminum waveguide Tweeter
  • 6" paper Woofer
  • 33-40 kHz Frequency Response
  • 88 dB Sensitivity
  • Impedance: 4ohms
  • Power Range:40-200watts
  • Weight:7.30kg
  • Dimensions (H x W x D): 375.0" x 7" x 9.65"( 375 x 180 x 245mm )

P300 and S400 are members of Buchardt's Passive series of speakers. Below you can find the loudspeakers from this series.

Buchardt Passive Series History
Model Body Frequency SensitivityImpedance Woofer
Buchardt E50
  
Bookshelf 36-30k HZ 85 dB4Ω 1 x 6.5"
Buchardt S400 MKII
  
Bookshelf 33-40k HZ 88 dB4Ω 1 x 6"
Buchardt P300
Bookshelf 37-40k HZ 86 dB4Ω 1 x 6"
Buchardt S400
Bookshelf 33-40 kHz 88 dB4Ω 1 x 6"

What size room are the Buchardt P300 and Buchardt S400 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* Buchardt P300 Buchardt S400
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.)

In the following sections, we will get into more detail in order to better understand how the Buchardt P300 and Buchardt S400 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Drivers

Both P300 and S400 are 2-way speakers.

Driver Buchardt P300 Buchardt S400
Driver Setup 2-way 2-way
Tweeter 0.74-inch 0.74-inch
Midrange - -
Woofer 1 x 6-inch 1 x 6-inch

P300 features a 0.74" Custom fine weave soft fabric textile with CDC aluminum waveguide aluminum waveguide Tweeter and 1 x 6" paper Woofer with a Crossover frequency at 2900Hz. On the other hand, the S400 features a 0.74" Custom fine weave soft fabric textile aluminum waveguide Tweeter and 1 x 6" paper Woofer with a Crossover frequency at 2000Hz.

Frequency Response

P300 has a frequency range of 37-40k HZ whereas S400 has a frequency range of 33-40 kHz. With a minimum frequency of 33Hz, the S400 can go slightly deeper then the P300's min frequency of 37Hz.

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

P300
S400
Min
Average
Max
High Frequency

Bookshelf Speakers

Buchardt P300
Buchardt S400
Min
Average
Max

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

P300 and S400 have the same Impedance of 4 ohms but where they differ is the sensitivity levels. P300 sensitivity is rated at 86 dB and the S400's is at 88 dB. This 2 dB difference makes the Buchardt S400 a more sensitive speaker compared to Buchardt P300, hence will play louder with the same amount of watts.

One thing to keep in mind that the lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit comared to higher impedance speakers especially at high volume levels, so make sure the amp you pair with the P300 and the P300 can provide this impedance level.

Sensitivity

Bookshelf Speakers

P300
S400
Min
Average
Max

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.

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 P300's and Buchardt S400's external dimensions. Buchardt P300 has external dimensions of 365.0 x 180.0 x 280.0mm ( 14.4 x 7 x 11inch) whereas Buchardt S400 has external dimensions of 375 x 180 x 245mm ( 14.75 x 7 x 9.6inch) .

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 P300 is approximately 504.0cm2 / 78.1inch2 and base area of the Buchardt S400 is approximately 441.0cm2 / 68.4inch2. The P300 requires 14% more surface area than the S400 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 Buchardt P300 weighs 6.30kg / 13.9lbs and the Buchardt S400 weighs 7.30kg / 16.1lbs. This makes the S400 16% heavier than the P300.

Here is a comparison of how P300 and S400's weights compare with the average, max and min weights in Passive Bookshelf class.

Weight
All Bookshelf Speakers
Buchardt P300
Buchardt S400
Min
Average
Max

Reasons to choose Buchardt P300 over Buchardt S400
Height 365mm vs 375mm Easier to fit in smaller spaces

Reasons to choose Buchardt S400 over Buchardt P300

Sensitivity 88 dB vs 86 dB Play louder with same amount of amplification power
Low Frequency Response 33 Hz vs 37 Hz Generates deeper bass
Base Surface Area 441cm2 vs 504cm2 Takes less floor space
Buchardt P300 vs Buchardt S400 Specs Table
Detailed comparison of specifications
General Buchardt P300 Buchardt S400
Brand Buchardt Buchardt
Speaker Type Bookshelf speakers Bookshelf speakers
Power Range 50 - 200 watts 40-200 watts
Sensitivity 86 dB 88 dB
Impedance 4 ohms 4 ohms
Frequency Response 37-40k HZ 33-40 kHz
Drivers
Woofer Quantity 1 1
Woofer Size 6" 6"
Woofer Composition paper paper
Tweeter Size 0.74" 0.74"
Tweeter Type aluminum waveguide aluminum waveguide
Aimable Tweeter No No
Midrange Driver No No
Crossover Frequency 2900Hz 2000Hz
Physical Specs
Height 365.0mm (14.4") 375.0mm (14.8")
Width 180.0mm (7.1") 180.0mm (7.1")
Depth 280.0mm (11") 245.0mm (9.6")
Weight 6.30kg (13.9lbs) 7.30kg (16.1lbs)
Enclosure Passive Radiator Passive Radiator
Finish 15mm Fiberboard HMR.E2 Moisture-proof with internal bracing n/a
Available Colors Black, White, Peach, Ocean, Olive Black, White, Walnut,Graphite Oak
Mounting Bracket No No
Grille Yes Yes
Moisture Resistancy No No
Connections
Other
Parts Warranty 10 years on speakers / 2 years on electronics (4 years if registered)
Labor Warranty 10 years on speakers / 2 years on electronics (4 years if registered)

Most Popular Speakers
Klipsch Reference R-51M
Klipsch R-51M
2-way | 93 dB | 8 ohms
Wharfedale Elysian 2
Wharfedale Elysian 2
3-way | 89 dB | 4 ohms
ELAC Debut 2.0 B6.2
ELAC Debut 2.0 B6.2
2-way | 87 dB | 6 ohms
Bowers & Wilkins 606 S2 Anniversary Edition
B&W 606 S2
2-way | 88 dB | 8 ohms
KEF Q150
KEF Q150
2-way | 86 dB | 8 ohms
Klipsch Reference Premiere RP-500M
Klipsch RP-500M
2-way | 93 dB | 8 ohms
Wharfedale EVO4.1
Wharfedale EVO4.1
2-way | 87 dB | 8 ohms
Bowers & Wilkins 606
B&W 606
2-way | 88 dB | 8 ohms
Copyright © 2025 by SpeakerDecision
About Privacy Contact US Camera Decision

Report a Correction