Power needed
24–300 W
per channel, into 4 ohms
To hit 95 dB peaks at 3 m from a pair of DALI Opticon 8 II, you need at least 24 W a channel. More than 300 W is wasted here — that is all DALI 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
- -83.0 dB effective sensitivity
- 3.0 dB taken off to convert the 4 ohm 2.83V rating to dB per watt
- 2 dB allowed for optimistic published sensitivity
- Published sensitivity 88 dB, used as 83.0 dB per watt.
Arcam SA30 with the DALI Opticon 8 II
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (130 W to 200 W).
Full Arcam SA30 specs
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Clear this amp
188 integrated amplifiers suit the DALI Opticon 8 II
Also show the 58 we do not recommend
1
Excellent match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 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.
2
Excellent match
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
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.
3
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (150 W to 250 W).
Balanced against the price of the speakers.
4
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (150 W to 250 W).
Balanced against the price of the speakers.
5
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (160 W to 240 W).
Balanced against the price of the speakers.
6
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (150 W to 250 W).
Balanced against the price of the speakers.
7
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (140 W to 220 W).
Balanced against the price of the speakers.
8
Excellent match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power nearly doubles into 4 ohms (80 W to 160 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
9
Excellent match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power nearly doubles into 4 ohms (80 W to 160 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
10
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (130 W to 200 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 4 ohm speaker.
Power rises usefully into 4 ohms (120 W to 200 W).
Balanced against the price of the speakers.
12
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (130 W to 200 W).
Balanced against the price of the speakers.
13
Excellent match
12 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.
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.
14
Good match
12 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (200 W to 350 W).
Balanced against the price of the speakers.
15
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (130 W to 190 W).
Balanced against the price of the speakers.
16
Good match
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (190 W to 280 W).
Balanced against the price of the speakers.
17
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (120 W to 185 W).
Balanced against the price of the speakers.
18
Workable with care
14 dB of headroom, far more than needed. No harm in it. Well above the 300 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
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.
19
Good match
12 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (200 W to 350 W).
Balanced against the price of the speakers.
20
Good match
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (180 W to 270 W).
Balanced against the price of the speakers.
Showing the best 20 of 188. Narrow it with the price range below, or a different budget split.
46 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
Excellent match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power nearly doubles into 4 ohms (125 W to 250 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
2
Excellent match
13 dB of headroom, far more than needed. No harm in it.
Rated down to 1 ohms - stable into anything this speaker will throw at it.
Power nearly doubles into 4 ohms (250 W to 450 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
3
Good 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 rises usefully into 4 ohms (160 W to 240 W).
Sensible value pick against these speakers.
4
Good match
11 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 rises usefully into 4 ohms (200 W to 320 W).
Sensible value pick against these speakers.
5
Excellent match
12 dB of headroom, far more than needed. No harm in it.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power nearly doubles into 4 ohms (210 W to 420 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
6
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
No 4 ohm power rating on file. On a 4 ohm speaker that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
7
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
No 4 ohm power rating on file. On a 4 ohm speaker that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
8
Excellent 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.
Power nearly doubles into 4 ohms (175 W to 345 W) - a stiff supply that copes with hard loads.
Costs more than the speakers - worth it only if you plan to upgrade them later.
Were these amplifier recommendations useful?
It helps us tune the matching, and we read every comment.
Thanks. Anything you would add?
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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 DALI Opticon 8 II specs.