Power needed
28–445 W
per channel, into 6.75 ohms
To hit 95 dB peaks at 3 m from a pair of Spendor A7.2, you need at least 28 W a channel. Anything from about 56 W to 445 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
- -82.3 dB effective sensitivity
- 0.7 dB taken off to convert the 6.75 ohm 2.83V rating to dB per watt
- 2 dB allowed for optimistic published sensitivity
- Published sensitivity 85 dB, used as 82.3 dB per watt.
NAD C298 with the Spendor A7.2
Good match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
No 4 ohm power rating on file, so we cannot judge current delivery.
A power amplifier: you will need a preamplifier, or a streamer with a volume control, as well.
Full NAD C298 specs
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Clear this amp
148 integrated amplifiers suit the Spendor A7.2
Also show the 31 we do not recommend
1
Excellent match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power nearly doubles into 4 ohms (300 W to 550 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
2
Excellent match
9 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 (200 W to 400 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
3
Excellent match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power nearly doubles into 4 ohms (200 W to 380 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
4
Excellent match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power nearly doubles into 4 ohms (200 W to 380 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
5
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power rises usefully into 4 ohms (210 W to 340 W).
Balanced against the price of the speakers.
6
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power rises usefully into 4 ohms (200 W to 350 W).
Balanced against the price of the speakers.
7
Excellent match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power nearly doubles into 4 ohms (200 W to 400 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
8
Good match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power rises usefully into 4 ohms (190 W to 280 W).
Balanced against the price of the speakers.
9
Good match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power rises usefully into 4 ohms (180 W to 270 W).
Balanced against the price of the speakers.
10
Good match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power rises usefully into 4 ohms (180 W to 300 W).
Balanced against the price of the speakers.
11
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power rises usefully into 4 ohms (200 W to 350 W).
Sensible value pick against these speakers.
12
Excellent match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power nearly doubles into 4 ohms (300 W to 580 W) - a stiff supply that copes with hard loads.
Sensible value pick against these speakers.
13
Good match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power rises usefully into 4 ohms (185 W to 275 W).
Balanced against the price of the speakers.
14
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Rated at the same 250 W into 4 ohms as into 8 - the power supply runs out before the load does.
Sensible value pick against these speakers.
15
Good match
12 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Rated at the same 400 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
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Rated at the same 250 W into 4 ohms as into 8 - the power supply runs out before the load does.
Sensible value pick against these speakers.
17
Good match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power rises usefully into 4 ohms (160 W to 240 W).
Sensible value pick against these speakers.
18
Good match
7 dB of headroom - enough, but at the modest end for this speaker, which takes up to 445 W.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power rises usefully into 4 ohms (150 W to 250 W).
Sensible value pick against these speakers.
19
Good match
7 dB of headroom - enough, but at the modest end for this speaker, which takes up to 445 W.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power rises usefully into 4 ohms (150 W to 250 W).
Sensible value pick against these speakers.
20
Excellent match
7 dB of headroom - enough, but at the modest end for this speaker, which takes up to 445 W.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
Power nearly doubles into 4 ohms (150 W to 300 W) - a stiff supply that copes with hard loads.
Sensible value pick against these speakers.
Showing the best 20 of 148. 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
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
No 4 ohm power rating on file, so we cannot judge current delivery.
Balanced against the price of the speakers.
2
Good match
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
No 4 ohm power rating on file, so we cannot judge current delivery.
Balanced against the price of the speakers.
3
Good match
12 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.
No 4 ohm power rating on file, so we cannot judge current delivery.
Balanced against the price of the speakers.
4
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
No 4 ohm power rating on file, so we cannot judge current delivery.
Balanced against the price of the speakers.
5
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
No 4 ohm power rating on file, so we cannot judge current delivery.
Sensible value pick against these speakers.
6
Good match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
No 4 ohm power rating on file, so we cannot judge current delivery.
Balanced against the price of the speakers.
7
Good match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 6.75 ohm speaker that dips to 5.4.
No 4 ohm power rating on file, so we cannot judge current delivery.
Sensible value pick against these speakers.
8
Good match
7 dB of headroom - enough, but at the modest end for this speaker, which takes up to 445 W.
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.
Balanced against the price of the speakers.
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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 Spendor A7.2 specs.