In this review, we will be comparing Model Three and RP-400M, two Passive Bookshelf speakers from KLH and Klipsch.
Let's have a brief look at the main features
of KLH Model Three and Klipsch RP-400M first before getting into our more
detailed comparison.
KLH Model Three Key Specs
- 2-way Design
- 1" Tweeter
- 8" Pulp-Paper Cone Woofer
- 46-20k Hz Frequency Response
- 88 dB Sensitivity
- Impedance: 6ohms
- Power Range:30-150watts
- Weight:13.20kg
- Dimensions (H x W x D): 482.0" x 12.25" x 10.5"( 482.0 x 311.0 x 267.0mm )
Klipsch RP-400M Key Specs
- 2-way Design
- 1" Tractrix Horn Tweeter
- 4" Cerametallic Woofer
- 52-25k Hz Frequency Response
- 93 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 50watts
- Weight:4.10kg
- Dimensions (H x W x D): 298.0" x 5.6" x 7.5"( 298.0 x 144.0 x 191.0mm )
What size room are the KLH Model Three and Klipsch RP-400M 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* |
KLH Model Three |
Klipsch RP-400M |
| Near-field |
Poor |
Good |
| Small Room |
Average |
Good |
| Mid-size Room |
Good |
Average |
| Large Room |
Average |
Poor |
| Very Large Room |
Poor |
No way |
(* 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 KLH Model Three and Klipsch RP-400M 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 Model Three and RP-400M are 2-way speakers.
| Driver |
KLH Model Three |
Klipsch RP-400M |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 8-inch
|
1 x 4-inch
|
Model Three features a 1" Aluminum Tweeter and 1 x 8" Pulp-Paper Cone Woofer with a Crossover frequency at 1600Hz. On the other hand, the RP-400M features a 1" Tractrix Horn Tweeter and 1 x 4" Cerametallic Woofer with a Crossover frequency at 1500Hz.
Frequency Response
Model Three has a frequency range of 46-20k Hz whereas RP-400M has a frequency range of 52-25k Hz. With a minimum frequency of 46Hz, the Model Three can go significantly deeper on the low side and provide stronger bass compared to the RP-400M's min frequency of 52Hz.
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
Model Three is a 6 ohms speaker compared to the RP-400M which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. Model Three sensitivity is rated at 88 dB and the RP-400M's is rated at 93 dB. This 5 dB difference makes the Klipsch RP-400M a more sensitive speaker compared to KLH Model Three, 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.
Model Three can handle a max power of 150 watts RMS from the amp the whereas RP-400M has a max power handling value of 50 watts RMS, 100 watts less than the Model Three.
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.
Input Type and Bi-Amping / Bi-Wiring
Model Three features Single binding posts type posts and RP-400M has a Single binding posts type posts. None of these speakers feature bi-amping/bi-wiring.
KLH Model Three's Binding post terminals
Klipsch RP-400M's Single binding posts terminals
Klipsch RP-400M Tractrix horn-shaped Port
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 KLH Model Three's and Klipsch RP-400M's external dimensions. KLH Model Three has external dimensions of 482.0 x 311.0 x 267.0mm ( 19.0 x 12.25 x 10.5inch) whereas Klipsch RP-400M has external dimensions of 298.0 x 144.0 x 191.0mm ( 11.7 x 5.6 x 7.5inch) .
KLH Model Three is clearly the larger of the two speakers. Its body is 167mm wider, 184mm taller and 76mm deeper than Klipsch RP-400M.
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 KLH Model Three is approximately 830.4cm2 / 128.7inch2 and base area of the Klipsch RP-400M is approximately 275.0cm2 / 42.6inch2. The Model Three requires 202% more surface area than the RP-400M which gives it a small disadvantage on placement in tight spaces.