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  1. Home
  2. Q Acoustics Speakers
  3. Q Acoustics 3030c vs Q Acoustics 3090c

Q Acoustics 3030c vs Q Acoustics 3090c Comparison

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Q Acoustics 3030c

Passive Bookshelf | 48-30k Hz

Q Acoustics 3030c
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Q Acoustics 3090c

Passive Center Channel | 68-30k Hz

Q Acoustics 3090c
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Q Acoustics 3030c Q Acoustics 3030c
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Q Acoustics 3090c Q Acoustics 3090c
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Q Acoustics 3030c
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Q Acoustics 3090c
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Q Acoustics 3030c vs Q Acoustics 3090c Speaker Comparison

In this review, we will be comparing two different types of speakers by Q Acoustics. Q Acoustics 3030c is a Bookshelf speaker whereas the 3090c is a Center Channel speaker.

Let's have a brief look at the main features of Q Acoustics 3030c and Q Acoustics 3090c first before getting into our more detailed comparison.

Key SpecsQ Acoustics 3030cQ Acoustics 3090c
BrandQ Acoustics
United Kingdom · founded 2006
Q Acoustics
United Kingdom · founded 2006
Design2-way2-way
Tweeter1" decoupled0.9" Soft-dome
Woofer5.5" Coated paper2 x 4" Coated paper
Frequency response48-30k Hz68-30k Hz
Sensitivity86.5 dB92 dB
Impedance6 ohms6 ohms
Power range25-90 watts25-120 watts
Weight7.50kg / 16.5lbs6.50kg / 14.3lbs
Dimensions (H x W x D)12.8" x 8.1" x 13"
325 x 205 x 329mm
6.3" x 16.9" x 8.5"
159 x 430 x 216 mm

3030c and 3090c are members of Q Acoustics's 3000c series of speakers. Below you can find the loudspeakers from this series.

Q Acoustics 3000c Series History
Model Body Frequency SensitivityImpedance Woofer
Q Acoustics 3050c
  
Floor-standing 42-30k Hz 90 dB6Ω 2 x 5.5"
Q Acoustics 3010c
  
Bookshelf 60-30k Hz 85 dB6Ω 1 x 4"
Q Acoustics 3030c
Bookshelf 48-30k Hz 86.5 dB6Ω 1 x 5.5"
Q Acoustics 3020c
  
Bookshelf 60-30k Hz 87 dB6Ω 1 x 4.74"
Q Acoustics 3090c
Center Channel 68-30k Hz 92 dB6Ω 2 x 4"
Q Acoustics 3040c
  
Floor-standing 43-30k Hz 88 dB6Ω 2 x 4.75"

What size room are the Q Acoustics 3030c and Q Acoustics 3090c 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 3030c Q Acoustics 3090c
Near-field Average Average
Small Room Good Good
Mid-size Room Average Average
Large Room Poor Poor
Very Large Room Bad Bad

(* 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 3030c and 3090c are 2-way speakers.

Tweeter - 1 inchWoofer - 5.5 inch
Q Acoustics 3030c
Woofer - 4 inchTweeter - 0.9 inchWoofer - 4 inch
Q Acoustics 3090c

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 3030c Q Acoustics 3090c
Driver Setup 2-way 2-way
Tweeter 1-inch 0.9-inch
Midrange - -
Woofer 1 x 5.5-inch 2 x 4-inch

3030c features a 1" decoupled Tweeter and 1 x 5.5" Coated paper Woofer with a Crossover frequency at 2500Hz. On the other hand, the 3090c features a 0.9" Soft-dome Tweeter and 2 x 4" Coated paper Woofer with a Crossover frequency at 2900 Hz.

Q Acoustics 3030c driver frequency bandsQ Acoustics 3030cQ Acoustics 3090c48-2.5k68-2.9kWoofer2.5k-30k2.9k-30kTweeter20501002005001k2k5k10k20k40kHz, log scale

Frequency Response

3030c has a frequency range of 48-30k Hz whereas 3090c has a frequency range of 68-30k Hz. With a minimum frequency of 48Hz, the 3030c can go significantly deeper on the low side and provide stronger bass compared to the 3090c's min frequency of 68Hz.

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

3030c
3090c
Min
Average
Median

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

3030c and 3090c have the same Impedance of 6 ohms but where they differ is the sensitivity levels. 3030c sensitivity is rated at 86.5 dB and the 3090c's is at 92 dB. This 5 dB difference makes the Q Acoustics 3090c a more sensitive speaker compared to Q Acoustics 3030c, hence will play louder with the same amount of watts.

Sensitivity

Bookshelf Speakers

3030c
3090c
Min
Average
Median

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.

3090c can handle a max power of 120 watts RMS, whereas 3030c has a max power handling value of 90 watts RMS, 30 watts less than the 3090c.

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.

Q Acoustics 3030c
 
Q Acoustics 3090c
 

Input Type and Bi-Amping / Bi-Wiring

3030c features Binding post type posts and 3090c has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.

Cabinet Type and Port Position

Both 3030c and 3090c 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.

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 3030c's and Q Acoustics 3090c's external dimensions. Q Acoustics 3030c has external dimensions of 325 x 205 x 329mm (12.8 x 8.1 x 13inch) whereas Q Acoustics 3090c has external dimensions of 159 x 430 x 216 mm (6.3 x 16.9 x 8.5 in).

Q Acoustics 3090c is 166mm shorter and 113mm less deeper than Q Acoustics 3030c but it is also 225mm wider.

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 3030c is approximately 674.5cm2 / 104.5inch2 and base area of the Q Acoustics 3090c is approximately 928.8cm2 / 144.0inch2. The 3030c requires 27% less surface area than the 3090c which gives it a small advantage on placement in tight spaces.

What's in the Box of Q Acoustics 3030c?

Here are the items that are included inside the box of 3030c:
  • 2 x 3030c bookshelf speakers
  • 2 x Speaker Grilles
  • 2 x Foam Bungs
  • 1 x User Manual

What's in the Box of Q Acoustics 3090c?

Here are the items that come with the 3090c:
  • 1x 3090c loudspeaker
  • 1x Owners manual
  • 2x Foam bung


Reasons to choose Q Acoustics 3030c over Q Acoustics 3090c

Minimum Impedance 3.9 ohms vs 3.7 ohms Very low impedance levels puts more pressure on amplifier
Woofer Size 5.5 inches vs 4 inches Larger woofer
Low Frequency Response 48 Hz vs 68 Hz Generates deeper bass
Base Surface Area 674cm2 vs 928cm2 Takes less floor space

Reasons to choose Q Acoustics 3090c over Q Acoustics 3030c

Max Input Power 120 watts vs 90 watts Handle more power from your amplifier
Sensitivity 92 dB vs 87 dB Play louder with same amount of amplification power
Number of Woofers 2 vs 1 More woofers
Height 159mm vs 325mm Easier to fit in smaller spaces
Price per pair* 399USD vs 699USD costs less (*prices may change depending on the seller, location and time)

Q Acoustics 3030c vs Q Acoustics 3090c Specs Table

Detailed comparison of specifications
General Q Acoustics 3030c Q Acoustics 3090c
Brand Q Acoustics Q Acoustics
Speaker Type Bookshelf speakers Center channel speaker
Power Range 25-90 watts 25-120 watts
Sensitivity 86.5 dB 92 dB
Impedance 6 ohms 6 ohms
Impedance 3.9 ohms 3.7 ohms
Frequency Response 48-30k Hz 68-30k Hz
Drivers
Woofer Quantity 1 2
Woofer Size 5.5" 4"
Woofer Composition Coated paper Coated paper
Woofer Surround Material Rubber Rubber
Tweeter Size 1" 0.9"
Tweeter Type decoupled Soft-dome
Aimable Tweeter No No
Midrange Driver No No
Crossover Frequency 2500Hz 2900 Hz
Firing Direction rear rear
Physical Specs
Height 325.0mm (12.8") 159.0mm (6.3")
Width 205.0mm (8.1") 430.0mm (16.9")
Depth 329.0mm (13") 216.0mm (8.5")
Weight 7.50kg (16.5lbs) 6.50kg (14.3lbs)
Enclosure Bass Reflex Bass Reflex
Finish n/a MDF
Available Colors Walnut, Black, White, Oak Walnut, Black, White, Oak
Mounting Bracket No No
Grille Yes Yes
Moisture Resistancy No No
Connections
Biamp Inputs No No
Other
Parts Warranty 4 Years 5 years
Labor Warranty 4 Years 4 Years

Verdict

Siblings in Q Acoustics's 3000c series, so they share a family sound. It comes down to size, output and price.

AreaBetterWhy
BassAQ Acoustics 3030c digs deeper - 48Hz against 68Hz.
Amplifier needsBQ Acoustics 3090c is more sensitive (92dB vs 87dB), so it goes louder on the same amplifier.
HeadroomBQ Acoustics 3090c takes more power (120W vs 90W) - more in hand in a big room.
SizedependsQ Acoustics 3090c is easier to place; Q Acoustics 3030c is bigger, which usually goes with fuller bass. Your room decides.
TypedependsA Passive Bookshelf against a Passive Center Channel - a different job rather than a better one.
PriceBQ Acoustics 3090c is cheaper - $399 against $699, about 43% less; arguably a different class.

A Q Acoustics 3030c  B Q Acoustics 3090c
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?

Q Acoustics 3090c 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 68Hz anyway, which makes the cheaper Q Acoustics 3090c much easier to justify. In a large or open-plan room, Q Acoustics 3030c has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Q Acoustics 3090c 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.


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