Power needed
6.3–100 W
per channel, into 6 ohms
To hit 95 dB peaks at 3 m from a pair of Q Acoustics 5040, you need at least 6.3 W a channel. Anything from about 13 W to 100 W a channel is comfortable; past that, more watts stop buying you anything.
Show the working
- 95 dB target at the seat
- +4.8 dB for 3.0 m of distance
- -3 dB for a stereo pair
- -88.8 dB effective sensitivity
- 1.2 dB taken off to convert the 6 ohm 2.83V rating to dB per watt
- 2 dB allowed for optimistic published sensitivity
- Published sensitivity 92 dB, used as 88.8 dB per watt.
PS Audio Sprout100 with the Q Acoustics 5040
Workable with care
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power nearly doubles into 4 ohms (50 W to 100 W) - a stiff supply that copes with hard loads.
Full PS Audio Sprout100 specs
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Clear this amp
150 integrated amplifiers suit the Q Acoustics 5040
Also show the 28 we do not recommend
1
Excellent match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 2 ohms - stable into anything this speaker will throw at it.
Power nearly doubles into 4 ohms (40 W to 80 W) - a stiff supply that copes with hard loads.
Sensible value pick against these speakers.
2
Workable with care
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power nearly doubles into 4 ohms (50 W to 100 W) - a stiff supply that copes with hard loads.
Sensible value pick against these speakers.
3
Workable with care
13 dB of headroom, far more than needed. No harm in it.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power nearly doubles into 4 ohms (75 W to 150 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
4
Workable with care
13 dB of headroom, far more than needed. No harm in it.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power nearly doubles into 4 ohms (75 W to 150 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
5
Workable with care
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (50 W to 75 W).
Balanced against the price of the speakers.
6
Workable with care
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (60 W to 90 W).
Balanced against the price of the speakers.
7
Workable with care
13 dB of headroom, far more than needed. No harm in it.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power nearly doubles into 4 ohms (80 W to 150 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
8
Workable with care
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (50 W to 85 W).
Balanced against the price of the speakers.
9
Workable with care
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (45 W to 65 W).
Balanced against the price of the speakers.
10
Workable with care
12 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (75 W to 110 W).
Balanced against the price of the speakers.
11
Workable with care
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (50 W to 75 W).
Balanced against the price of the speakers.
12
Workable with care
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (70 W to 100 W).
Balanced against the price of the speakers.
13
Workable with care
12 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (70 W to 110 W).
Balanced against the price of the speakers.
14
Workable with care
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (50 W to 85 W).
Sensible value pick against these speakers.
15
Workable with care
12 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (80 W to 120 W).
Balanced against the price of the speakers.
16
Workable with care
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (50 W to 75 W).
Balanced against the price of the speakers.
17
Workable with care
12 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (80 W to 120 W).
Balanced against the price of the speakers.
18
Workable with care
12 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power rises usefully into 4 ohms (80 W to 120 W).
Balanced against the price of the speakers.
19
Workable with care
12 dB of headroom, far more than needed. No harm in it.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power nearly doubles into 4 ohms (70 W to 140 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
20
Workable with care
12 dB of headroom, far more than needed. No harm in it.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
Power nearly doubles into 4 ohms (70 W to 140 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
Showing the best 20 of 150. Narrow it with the price range below, or a different budget split.
18 power amplifiers that would also drive them
Listed separately because they are not a complete system: a power amplifier has no volume control and no inputs to speak of, so you need a preamplifier or a streaming preamp as well. Worth it if you already own one, or if you want to buy the two halves separately.
1
Workable with care
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
No 4 ohm power rating on file. On a 6 ohm speaker dipping to 3 that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
2
Workable with care
12 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
No 4 ohm power rating on file. On a 6 ohm speaker dipping to 3 that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
3
Good match
16 dB of headroom, far more than needed. No harm in it.
Rated down to 2 ohms - stable into anything this speaker will throw at it.
No 4 ohm power rating on file. On a 6 ohm speaker dipping to 3 that is the figure that matters, so this one is unproven on the load.
Costs more than the speakers - worth it only if you plan to upgrade them later.
4
Workable with care
13 dB of headroom, far more than needed. No harm in it.
Rated to 6 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
No 4 ohm power rating on file. On a 6 ohm speaker dipping to 3 that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
5
Workable with care
13 dB of headroom, far more than needed. No harm in it.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
No 4 ohm power rating on file. On a 6 ohm speaker dipping to 3 that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
6
Workable with care
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
No 4 ohm power rating on file. On a 6 ohm speaker dipping to 3 that is the figure that matters, so this one is unproven on the load.
Sensible value pick against these speakers.
7
Workable with care
13 dB of headroom, far more than needed. No harm in it.
Rated to 4 ohms, but this speaker dips to 3. Fine at sane volume, tight if you push it hard.
No 4 ohm power rating on file. On a 6 ohm speaker dipping to 3 that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
8
Workable
14 dB of headroom, far more than needed. No harm in it.
Rated down to 2 ohms - stable into anything this speaker will throw at it.
No 4 ohm power rating on file. On a 6 ohm speaker dipping to 3 that is the figure that matters, so this one is unproven on the load.
Far more expensive than the speakers. Spend it on speakers first.
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Sensitivity and impedance figures are the manufacturer's own. We read sensitivity as dB at 2.83 V/1 m and take 2 dB off it, because published figures run high. Treat the result as a well-founded starting point, not a measurement. Full Q Acoustics 5040 specs.