In this review, we will be comparing 3020i and RP-400M, two Passive Bookshelf speakers from Q Acoustics and Klipsch.
Let's have a brief look at the main features
of Q Acoustics 3020i and Klipsch RP-400M first before getting into our more
detailed comparison.
| Key Specs | Q Acoustics 3020i | Klipsch RP-400M |
|---|
| Brand | Q Acoustics
United Kingdom · founded 2006 | Klipsch
United States · founded 1946 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 0.9" decoupled | 1" Tractrix Horn |
|---|
| Woofer | 5" Coated paper | 4" Cerametallic |
|---|
| Frequency response | 64-30k Hz | 52-25k Hz |
|---|
| Sensitivity | 88 dB | 93 dB |
|---|
| Impedance | 6 ohms | 8 ohms |
|---|
| Power range | 25-75 watts | up to 50 watts |
|---|
| Weight | 4.80kg / 10.6lbs | 4.10kg / 9lbs |
|---|
| Dimensions (H x W x D) | 10.9" x 6.6" x 11.1"
278.0 x 170.0 x 282.0mm | 11.7" x 5.6" x 7.5"
298.0 x 144.0 x 191.0mm |
|---|
What size room are the Q Acoustics 3020i 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* |
Q Acoustics 3020i |
Klipsch RP-400M |
| Near-field |
Good |
Good |
| Small Room |
Good |
Good |
| Mid-size Room |
Average |
Average |
| Large Room |
Poor |
Poor |
| Very Large Room |
No way |
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.)
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
Drivers
Both 3020i and RP-400M are 2-way speakers.
Q Acoustics 3020iKlipsch RP-400M
TweeterWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
Q Acoustics 3020i |
Klipsch RP-400M |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
0.9-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5-inch
|
1 x 4-inch
|
3020i features a 0.9" decoupled Tweeter and 1 x 5" Coated paper Woofer with a Crossover frequency at 2400Hz. 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
3020i has a frequency range of 64-30k Hz whereas RP-400M has a frequency range of 52-25k Hz. With a minimum frequency of 52Hz, the RP-400M can go significantly deeper on the low side and provide stronger bass compared to the 3020i's min frequency of 64Hz.
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
3020i 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. 3020i 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 Q Acoustics 3020i, 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.
3020i can handle a max power of 75 watts RMS, whereas RP-400M has a max power handling value of 50 watts RMS, 25 watts less than the 3020i.
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.
Input Type and Bi-Amping / Bi-Wiring
3020i 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 3020i 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
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 Q Acoustics 3020i's and Klipsch RP-400M's external dimensions. Q Acoustics 3020i has external dimensions of 278.0 x 170.0 x 282.0mm (10.9 x 6.6 x 11.1inch) whereas Klipsch RP-400M has external dimensions of 298.0 x 144.0 x 191.0mm (11.7 x 5.6 x 7.5inch).
Klipsch RP-400M is 26mm narrower and 91mm less deeper than Q Acoustics 3020i but it is also 20mm taller.
Below you can see the front view size comparison of Q Acoustics 3020i and Klipsch RP-400M in scale.
Comparison image of Q Acoustics 3020i and Klipsch RP-400M 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 Q Acoustics 3020i is approximately 479.4cm2 / 74.3inch2 and base area of the Klipsch RP-400M is approximately 275.0cm2 / 42.6inch2. The 3020i requires 74% more surface area than the RP-400M 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 Q Acoustics 3020i and Klipsch RP-400M 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 Q Acoustics 3020i weighs 4.80kg / 10.6lbs and the Klipsch RP-400M weighs 4.10kg / 9lbs. This makes the 3020i 17% heavier than the RP-400M.
Here is a comparison of how 3020i 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 Q Acoustics 3020i?
Here are the items that are included inside the box of 3020i:
- 2 x 3020i bookshelf speakers
- 2 x Foam Bungs
- 2 x Speaker Grilles
- 1 x User Manual
- 1 x Handling Gloves
- 8 x Rubber Speaker Grips
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 |
75 watts
vs
50 watts
|
Handle more power from your amplifier |
 Woofer Size |
5 inches
vs
4 inches
|
Larger woofer |
 High Frequency Response |
30k Hz
vs
25k Hz
|
Generates higher frequency |
 Height |
278mm
vs
298mm
|
Easier to fit in smaller spaces |
 Sensitivity |
93 dB
vs
88 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
6 ohms
|
Less selective with amplifiers |
|
Low Frequency Response |
52 Hz
vs
64 Hz
|
Generates deeper bass |
 Mounting Bracket |
Yes
vs
No
|
Allows mounting on walls |
 Base Surface Area |
275cm2
vs
479cm2
|
Takes less floor space |
| General |
Q Acoustics 3020i |
Klipsch Reference Premiere RP-400M |
| Brand |
Q Acoustics |
Klipsch |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
25-75 watts |
up to 50 watts |
| Sensitivity |
88 dB |
93 dB |
| Impedance |
6 ohms |
8 ohms |
| Impedance |
4 ohms |
n/a |
| Frequency Response |
64-30k Hz |
52-25k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
5" |
4" |
| Woofer Composition |
Coated paper |
Cerametallic |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
0.9" |
1" |
| Tweeter Type |
decoupled |
Tractrix Horn |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
2400Hz |
1500Hz |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
278.0mm (10.9") |
298.0mm (11.7") |
| Width |
170.0mm (6.7") |
144.0mm (5.7") |
| Depth |
282.0mm (11.1") |
191.0mm (7.5") |
| Weight |
4.80kg (10.6lbs) |
4.10kg (9lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
n/a |
MDF/Wood-grain vinyl |
| Available Colors |
Walnut, Black, White, Grey |
Ebony, Walnut, Piano Black |
| Mounting Bracket |
No |
Keyhole |
| Recommended Stand Height |
n/a |
28-30" |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
4 Years |
5 Years |
| Labor Warranty |
4 Years |
5 Years |
No single best speaker here - they are built to different priorities, and the right one depends on your room, your amplifier and what you listen to.
| Area | Better | Why |
|---|
| Bass | B | Klipsch RP-400M digs deeper - 52Hz against 64Hz. |
| Amplifier needs | B | Klipsch RP-400M is more sensitive (93dB vs 88dB), so it goes louder on the same amplifier. |
| Amplifier match | B | Klipsch RP-400M is the easier load at 8 ohms. |
| Headroom | A | Q Acoustics 3020i takes more power (75W vs 50W) - more in hand in a big room. |
| Size | depends | Klipsch RP-400M is easier to place; Q Acoustics 3020i is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | depends | Neither adds bi-amping, a sub output or height drivers. Klipsch RP-400M sits in a wider range (17 models), so a matched surround system is easier later. |
| Price | evenly matched | Much the same money ($399 vs $399 a pair). |
A Q Acoustics 3020i B Klipsch RP-400M
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?
Klipsch RP-400M 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 64Hz anyway, so judge these on the other rows instead. In a large or open-plan room, Q Acoustics 3020i has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Klipsch RP-400M 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.