In this review, we will be comparing Imagine XB and RP-400M, two Passive Bookshelf speakers from PSB and Klipsch.
Let's have a brief look at the main features
of PSB Imagine XB and Klipsch RP-400M first before getting into our more
detailed comparison.
PSB Imagine XB Key Specs
- 2-way Design
- 1" Hard-Dome Tweeter
- 5.25" Clay/Ceramic/Poly Woofer
- 55-23k Hz Frequency Response
- 87 dB Sensitivity
- Impedance: 8ohms
- Power Range:20-150watts
- Weight:5.60kg
- Dimensions (H x W x D): 302.0" x 6.75" x 10.75"( 302 x 170 x 271mm )
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 PSB Imagine XB 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* |
PSB Imagine XB |
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 PSB Imagine XB 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.
**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 Imagine XB and RP-400M are 2-way speakers.
| Driver |
PSB Imagine XB |
Klipsch RP-400M |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5.25-inch
|
1 x 4-inch
|
Imagine XB features a 1" Titanium Dome with Ferrofluid Hard-Dome Tweeter and 1 x 5.25" Clay/Ceramic/Poly Woofer with a Crossover frequency at 1800Hz. 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
Imagine XB has a frequency range of 55-23k Hz whereas RP-400M has a frequency range of 52-25k Hz. With a minimum frequency of 52Hz, the RP-400M can go slightly deeper then the Imagine XB's min frequency of 55Hz.
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
Imagine XB and RP-400M have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Imagine XB sensitivity is rated at 87 dB and the RP-400M's is at 93 dB. This 6 dB difference makes the Klipsch RP-400M a more sensitive speaker compared to PSB Imagine XB, 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.
Imagine XB 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 Imagine XB.
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
Imagine XB 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.
Klipsch RP-400M's Single binding posts terminals
Cabinet Type and Port Position
Both Imagine XB and RP-400M have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
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 PSB Imagine XB's and Klipsch RP-400M's external dimensions. PSB Imagine XB has external dimensions of 302 x 170 x 271mm ( 12inch x 6.75inch x 10.75inch ) whereas Klipsch RP-400M has external dimensions of 298.0 x 144.0 x 191.0mm ( 11.7 x 5.6 x 7.5inch) .
PSB Imagine XB is clearly the larger of the two speakers. Its body is 26mm wider, 4mm taller and 80mm 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 PSB Imagine XB is approximately 460.0cm2 / 71.3inch2 and base area of the Klipsch RP-400M is approximately 275.0cm2 / 42.6inch2. The Imagine XB requires 67% more surface area than the RP-400M 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 PSB Imagine XB weighs 5.60kg / 12.3lbs and the Klipsch RP-400M weighs 4.10kg / 9lbs. This makes the Imagine XB 37% heavier than the RP-400M.
Here is a comparison of how Imagine XB and RP-400M's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of PSB Imagine XB?
Here are the items that are included inside the box of Imagine XB:
2 Bookshelf loudspeakers2 Grilles8 Rubber feetQuick Start GuideWarranty Card
What's in the Box of Klipsch RP-400M?
Here are the items that come with the RP-400M:
2 Bookshelf loudspeakers 2 Grilles (installed) 8 Self-adhesive rubber feet User Manual Important Safety Instructions Warranty Information
 Max Input Power |
150 watts
vs
50 watts
|
Handle more power from your amplifier |
 Woofer Size |
5.25 inches
vs
4 inches
|
Larger woofer |
 Sensitivity |
93 dB
vs
87 dB
|
Play louder with same amount of amplification power |
|
Low Frequency Response |
52 Hz
vs
55 Hz
|
Generates deeper bass |
 High Frequency Response |
25k Hz
vs
23k Hz
|
Generates higher frequency |
 Height |
298mm
vs
302mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
275cm2
vs
460cm2
|
Takes less floor space |
 Price per pair* |
399USD
vs
649USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
PSB Imagine XB |
Klipsch Reference Premiere RP-400M |
| Brand |
PSB |
Klipsch |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
20-150 watts |
up to 50 watts |
| Sensitivity |
87 dB |
93 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
4 ohms |
n/a |
| Frequency Response |
55-23k Hz |
52-25k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
5.25" |
4" |
| Woofer Composition |
Clay/Ceramic/Poly |
Cerametallic |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Hard-Dome |
Tractrix Horn |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
1800Hz |
1500Hz |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
302.0mm (11.9") |
298.0mm (11.7") |
| Width |
170.0mm (6.7") |
144.0mm (5.7") |
| Depth |
271.0mm (10.7") |
191.0mm (7.5") |
| Weight |
5.60kg (12.3lbs) |
4.10kg (9lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain |
MDF/Wood-grain vinyl |
| Available Colors |
Black |
Ebony, Walnut, Piano Black |
| Mounting Bracket |
|
Keyhole |
| Recommended Stand Height |
24-26" |
28-30" |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |