Power needed
32–50 W
per channel, into 6 ohms
To hit 95 dB peaks at 3 m from a pair of Monitor Audio CS140, you need at least 32 W a channel. More than 50 W is wasted here - that is all Monitor Audio rates the speaker to take.
Show the working
- 95 dB target at the seat
- +4.8 dB for 3.0 m of distance
- -3 dB for a stereo pair
- -81.8 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 85 dB, used as 81.8 dB per watt.
Arcam Solo Uno with the Monitor Audio CS140
Workable with care
Just barely enough (1 dB of headroom). Fine at normal volume, no reserve for peaks.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power nearly doubles into 4 ohms (25 W to 50 W) - a stiff supply that copes with hard loads.
Full Arcam Solo Uno specs
·
Clear this amp
187 integrated amplifiers suit the Monitor Audio CS140
Also show the 63 we do not recommend
1
Workable with care
5 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power nearly doubles into 4 ohms (60 W to 120 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
2
Workable with care
5 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power nearly doubles into 4 ohms (60 W to 120 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
3
Workable with care
5 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power nearly doubles into 4 ohms (60 W to 120 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
4
Workable with care
4 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power nearly doubles into 4 ohms (55 W to 105 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
5
Excellent match
4 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
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.
6
Workable with care
Just barely enough (1 dB of headroom). Fine at normal volume, no reserve for peaks.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power rises usefully into 4 ohms (30 W to 50 W).
Sensible value pick against these speakers.
7
Workable with care
4 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power rises usefully into 4 ohms (60 W to 100 W).
Balanced against the price of the speakers.
8
Workable with care
4 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power nearly doubles into 4 ohms (60 W to 110 W) - a stiff supply that copes with hard loads.
Costs more than the speakers - worth it only if you plan to upgrade them later.
9
Workable with care
7 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 3 ohms, comfortable with a 6 ohm speaker.
Power nearly doubles into 4 ohms (100 W to 200 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
10
Good match
3 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Barely gains into 4 ohms (60 W to 70 W) - a modest power supply.
Balanced against the price of the speakers.
11
Excellent match
3 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.
Costs more than the speakers - worth it only if you plan to upgrade them later.
12
Workable with care
Just barely enough (2 dB of headroom). Fine at normal volume, no reserve for peaks.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
No 4 ohm power rating on file, so we cannot judge current delivery.
Balanced against the price of the speakers.
13
Excellent match
4 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power nearly doubles into 4 ohms (50 W to 100 W) - a stiff supply that copes with hard loads.
Costs more than the speakers - worth it only if you plan to upgrade them later.
14
Workable with care
Just barely enough (1 dB of headroom). Fine at normal volume, no reserve for peaks.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power nearly doubles into 4 ohms (25 W to 50 W) - a stiff supply that copes with hard loads.
Costs more than the speakers - worth it only if you plan to upgrade them later.
15
Workable with care
Just barely enough (2 dB of headroom). Fine at normal volume, no reserve for peaks.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Rated at the same 50 W into 4 ohms as into 8 - the power supply runs out before the load does.
Balanced against the price of the speakers.
16
Good match
3 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power rises usefully into 4 ohms (50 W to 75 W).
Costs more than the speakers - worth it only if you plan to upgrade them later.
17
Workable with care
6 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power nearly doubles into 4 ohms (75 W to 150 W) - a stiff supply that copes with hard loads.
Costs more than the speakers - worth it only if you plan to upgrade them later.
18
Workable with care
Just barely enough (1 dB of headroom). Fine at normal volume, no reserve for peaks.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Rated at the same 40 W into 4 ohms as into 8 - the power supply runs out before the load does.
Balanced against the price of the speakers.
19
Workable with care
4 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
No 4 ohm power rating on file, so we cannot judge current delivery.
Balanced against the price of the speakers.
20
Workable with care
5 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Barely gains into 4 ohms (90 W to 120 W) - a modest power supply.
Balanced against the price of the speakers.
Showing the best 20 of 187. Narrow it with the price range below, or a different budget split.
47 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
5 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power rises usefully into 4 ohms (70 W to 125 W).
Balanced against the price of the speakers.
2
Workable with care
4 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
No 4 ohm power rating on file, so we cannot judge current delivery.
Costs more than the speakers - worth it only if you plan to upgrade them later.
3
Workable with care
7 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 2 ohms - stable into anything this speaker will throw at it.
Power nearly doubles into 4 ohms (100 W to 190 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
4
Workable with care
5 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
No 4 ohm power rating on file, so we cannot judge current delivery.
Far more expensive than the speakers. Spend it on speakers first.
5
Workable with care
6 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
Power rises usefully into 4 ohms (100 W to 150 W).
Far more expensive than the speakers. Spend it on speakers first.
6
Workable with care
8 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 6 ohm speaker.
No 4 ohm power rating on file, so we cannot judge current delivery.
No current price on file for this amplifier.
7
Workable with care
6 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 6 ohms, comfortable with a 6 ohm speaker.
No 4 ohm power rating on file, so we cannot judge current delivery.
Costs more than the speakers - worth it only if you plan to upgrade them later.
8
Workable with care
5 dB of headroom over what this speaker needs - peaks stay clean. Well above the 50 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 2 ohms - stable into anything this speaker will throw at it.
No 4 ohm power rating on file, so we cannot judge current delivery.
Far more expensive than the speakers. Spend it on speakers first.
Were these amplifier recommendations useful?
It helps us tune the matching, and we read every comment.
Thanks. Anything you would add?
Optional, and it goes straight to the person who maintains this page.
Thanks - noted.
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 Monitor Audio CS140 specs.
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