What amplifier does the B&W 706 S2 need?

Pick a speaker and tell us how loud you listen and how big the room is. We work out the power it actually needs, check which amplifiers can safely drive its impedance, and rank 293 amplifiers against it.

Your system

Four questions. Nothing is hidden on price.

Passive speakers only - a powered speaker already has its amplifier inside.
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B&W 706 S2
B&W 706 S2
Bookshelf
88 dB · 8 ohm
dips to 3.7 ohm
$1,999 a pair
Full specs →
Power needed
12–120 W
per channel, into 8 ohms

To hit 95 dB peaks at 3 m from a pair of B&W 706 S2, you need at least 12 W a channel. More than 120 W is wasted here - that is all Bowers Wilkins 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
  • -86.0 dB effective sensitivity
  • 2 dB allowed for optimistic published sensitivity
  • Published sensitivity 88 dB, used as 86.0 dB per watt.

Onkyo Icon A-50 with the B&W 706 S2

Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (110 W to 180 W).
Full Onkyo Icon A-50 specs · Clear this amp
 
$90 $25,000

224 integrated amplifiers suit the B&W 706 S2

Also show the 2 we do not recommend
1
Onkyo Muse Y-50
Onkyo Muse Y-50
Integrated Amplifier · Class D · 125 W into 8 ohms · $1,500
Excellent match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
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
Emotiva BasX TA2+
Emotiva BasX TA2+
Stereo Receiver · Class A/B · 135 W into 8 ohms · $1,299
Excellent match
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power nearly doubles into 4 ohms (135 W to 250 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
3
Rogue Audio Sphinx v3
Rogue Audio Sphinx v3
Integrated Amplifier · Class D · 100 W into 8 ohms · $1,795
Excellent match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
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.
4
Buchardt I150
Buchardt I150
Integrated Amplifier · Class D · 150 W into 8 ohms · $2,500
Excellent match
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power nearly doubles into 4 ohms (150 W to 300 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
5
Rotel A14 MKII
Rotel A14 MKII
Integrated Amplifier · Class A/B · 80 W into 8 ohms · $1,600
Excellent match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
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.
6
Onkyo Icon A-50
Onkyo Icon A-50
Integrated Amplifier · Class A/B · 110 W into 8 ohms · $1,600
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (110 W to 180 W).
Balanced against the price of the speakers.
7
Naim CI-Uniti 102
Naim CI-Uniti 102
Integrated Amplifier · Class D · 150 W into 8 ohms · $1,499
Good match
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (150 W to 260 W).
Balanced against the price of the speakers.
8
Arcam A25
Arcam A25
Integrated Amplifier · Class G · 100 W into 8 ohms · $1,499
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (100 W to 165 W).
Balanced against the price of the speakers.
9
Rotel RA-1572 MKII
Rotel RA-1572 MKII
Integrated Amplifier · Class A/B · 120 W into 8 ohms · $2,100
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (120 W to 200 W).
Balanced against the price of the speakers.
10
Musical Fidelity M2si
Musical Fidelity M2si
Integrated Amplifier · Class A/B · 76 W into 8 ohms · $1,299
Excellent match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power nearly doubles into 4 ohms (76 W to 135 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
11
Peachtree nova150
Peachtree nova150
Integrated Amplifier · Class D · 150 W into 8 ohms · $1,199
Good match
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (150 W to 250 W).
Sensible value pick against these speakers.
12
Arcam SA20
Arcam SA20
Integrated Amplifier · Class G · 90 W into 8 ohms · $1,650
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (90 W to 150 W).
Balanced against the price of the speakers.
13
AudioControl Rialto 600
AudioControl Rialto 600
Integrated Amplifier · Class D · 100 W into 8 ohms · $899
Excellent match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power nearly doubles into 4 ohms (100 W to 200 W) - a stiff supply that copes with hard loads.
Sensible value pick against these speakers.
14
AudioControl Bijou 600
AudioControl Bijou 600
Integrated Amplifier · Class D · 100 W into 8 ohms · $899
Excellent match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power nearly doubles into 4 ohms (100 W to 200 W) - a stiff supply that copes with hard loads.
Sensible value pick against these speakers.
15
Cambridge EXA100
Cambridge EXA100
Integrated Amplifier · Class A/B · 100 W into 8 ohms · $2,199
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (100 W to 155 W).
Balanced against the price of the speakers.
16
JBL SA550 C
JBL SA550 C
Integrated Amplifier · Class G · 90 W into 8 ohms · $1,999
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (90 W to 150 W).
Balanced against the price of the speakers.
17
Marantz Model 30
Marantz Model 30
Integrated Amplifier · Class D · 100 W into 8 ohms · $2,999
Excellent match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power nearly doubles into 4 ohms (100 W to 200 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
Advance Paris Playstream A7
Advance Paris Playstream A7
Integrated Amplifier · Class A/B · 115 W into 8 ohms · $2,499
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (115 W to 180 W).
Balanced against the price of the speakers.
19
Rotel S14
Rotel S14
Integrated Amplifier · Class A/B · 80 W into 8 ohms · $2,499
Excellent match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
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.
20
Peachtree Carina
Peachtree Carina
Integrated Amplifier · Class D · 300 W into 8 ohms · $1,999
Workable with care
14 dB of headroom, far more than needed. No harm in it. Well above the 120 W the maker rates the speaker for, so keep an eye on the volume knob.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power nearly doubles into 4 ohms (300 W to 580 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.

Showing the best 20 of 224. Narrow it with the price range below, or a different budget split.

67 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
Parasound NewClassic 2125 v.2
Parasound NewClassic 2125 v.2
Power Amplifier · Class A/B · 150 W into 8 ohms · $1,250
Good match
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power rises usefully into 4 ohms (150 W to 225 W).
Balanced against the price of the speakers.
2
Parasound Halo A23+
Parasound Halo A23+
Power Amplifier · Class A/AB · 160 W into 8 ohms · $2,500
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 (160 W to 240 W).
Balanced against the price of the speakers.
3
Eversolo AMP-F10
Eversolo AMP-F10
Power Amplifier · Class A/B · 200 W into 8 ohms · $2,480
Workable with care
12 dB of headroom, far more than needed. No harm in it. Well above the 120 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 rises usefully into 4 ohms (200 W to 320 W).
Balanced against the price of the speakers.
4
Rotel RB-1552 MkII
Rotel RB-1552 MkII
Power Amplifier · Class A/B · 130 W into 8 ohms · $1,699
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
No 4 ohm power rating on file. On a 8 ohm speaker dipping to 3.7 that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
5
Audiolab 9000P
Audiolab 9000P
Power Amplifier · Class A/B · 100 W into 8 ohms · $1,499
Good match
9 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
No 4 ohm power rating on file. On a 8 ohm speaker dipping to 3.7 that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
6
Onkyo Icon M-80
Onkyo Icon M-80
Power Amplifier · Class A/B · 130 W into 8 ohms · $2,000
Good match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
No 4 ohm power rating on file. On a 8 ohm speaker dipping to 3.7 that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
7
MOON 330A
MOON 330A
Power Amplifier · Class A/B · 125 W into 8 ohms · $4,400
Excellent match
10 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
Power nearly doubles into 4 ohms (125 W to 250 W) - a stiff supply that copes with hard loads.
Costs more than the speakers - worth it only if you plan to upgrade them later.
8
Advance Paris X-A160 EVO
Advance Paris X-A160 EVO
Power Amplifier · Class A/B · 160 W into 8 ohms · $2,499
Good match
11 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.7.
No 4 ohm power rating on file. On a 8 ohm speaker dipping to 3.7 that is the figure that matters, so this one is unproven on the load.
Balanced against the price of the speakers.
Were these amplifier recommendations useful?
It helps us tune the matching, and we read every comment.

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 B&W 706 S2 specs.

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