What amplifier does the Magnepan LRS+ 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 196 amplifiers against it.

Your system

Four questions. Nothing is hidden on price.

Passive speakers only — a powered speaker already has its amplifier inside.
Changes the order only. Nothing is hidden for costing too little or too much.
Magnepan LRS+
Magnepan LRS+
Floor-standing
86 dB · 4 ohm
$1,295 a pair
Full specs →
Power needed
38–600 W
per channel, into 4 ohms

To hit 95 dB peaks at 3 m from a pair of Magnepan LRS+, you need at least 38 W a channel. Anything from about 75 W to 600 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
  • -81.0 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 86 dB, used as 81.0 dB per watt.

Peachtree Carina with the Magnepan LRS+

Excellent 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 nearly doubles into 4 ohms (300 W to 580 W) - a stiff supply that copes with hard loads.
Full Peachtree Carina specs · Clear this amp
 
$199 $10,500

145 integrated amplifiers suit the Magnepan LRS+

Also show the 34 we do not recommend
1
Peachtree nova300
Peachtree nova300
Integrated Amplifier · Class D · 300 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 a 4 ohm speaker.
Power rises usefully into 4 ohms (300 W to 450 W).
Balanced against the price of the speakers.
2
Onkyo Muse Y-50
Onkyo Muse Y-50
Integrated Amplifier · Class D · 125 W into 8 ohms · $1,500
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 (125 W to 250 W) - a stiff supply that copes with hard loads.
Balanced against the price of the speakers.
3
Sonos Amp
Sonos Amp
Integrated Amplifier · Class D · 125 W into 8 ohms · $699
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 (125 W to 250 W) - a stiff supply that copes with hard loads.
Sensible value pick against these speakers.
4
Peachtree Carina
Peachtree Carina
Integrated Amplifier · Class D · 300 W into 8 ohms · $1,999
Excellent 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 nearly doubles into 4 ohms (300 W to 580 W) - a stiff supply that copes with hard loads.
Costs more than the speakers - worth it only if you plan to upgrade them later.
5
Peachtree nova150
Peachtree nova150
Integrated Amplifier · Class D · 150 W into 8 ohms · $1,199
Good 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 rises usefully into 4 ohms (150 W to 250 W).
Balanced against the price of the speakers.
6
AudioControl Rialto 600
AudioControl Rialto 600
Integrated Amplifier · Class D · 100 W into 8 ohms · $899
Excellent match
7 dB of headroom - enough, but at the modest end for this speaker, which takes up to 600 W.
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.
7
AudioControl Bijou 600
AudioControl Bijou 600
Integrated Amplifier · Class D · 100 W into 8 ohms · $899
Excellent match
7 dB of headroom - enough, but at the modest end for this speaker, which takes up to 600 W.
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.
8
Buchardt I150
Buchardt I150
Integrated Amplifier · Class D · 150 W into 8 ohms · $2,500
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 (150 W to 300 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
Anthem STR
Anthem STR
Integrated Amplifier · Class A/B · 200 W into 8 ohms · $5,000
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 (200 W to 400 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
10
Cambridge Audio Evo 300
Cambridge Audio Evo 300
Integrated Amplifier · Class D · 300 W into 8 ohms · $3,999
Excellent 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 nearly doubles into 4 ohms (300 W to 550 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
11
Marantz Stereo 70s
Marantz Stereo 70s
Stereo Receiver · Class A/B · 75 W into 8 ohms · $1,000
Excellent match
6 dB of headroom - enough, but at the modest end for this speaker, which takes up to 600 W.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
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.
12
Onkyo Muse Y-40
Onkyo Muse Y-40
Integrated Amplifier · Class D · 75 W into 8 ohms · $1,000
Excellent match
6 dB of headroom - enough, but at the modest end for this speaker, which takes up to 600 W.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
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.
13
NAD Masters Series M33
NAD Masters Series M33
Integrated Amplifier · Class D · 200 W into 8 ohms · $5,999
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 (200 W to 380 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
14
NAD Masters Series M33 V2
NAD Masters Series M33 V2
Integrated Amplifier · Class D · 200 W into 8 ohms · $7,399
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 (200 W to 380 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
15
Rotel RA-1592 MKII
Rotel RA-1592 MKII
Integrated Amplifier · Class A/B · 200 W into 8 ohms · $3,200
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 (200 W to 350 W).
Costs more than the speakers - worth it only if you plan to upgrade them later.
16
Marantz PM-10
Marantz PM-10
Integrated Amplifier · Class D · 200 W into 8 ohms · $8,999
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 (200 W to 400 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
17
SVS Prime SoundBase
SVS Prime SoundBase
Integrated Amplifier · Class D · 75 W into 8 ohms · $699
Good match
6 dB of headroom - enough, but at the modest end for this speaker, which takes up to 600 W.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power nearly doubles into 4 ohms (75 W to 150 W) - a stiff supply that copes with hard loads.
Sensible value pick against these speakers.
18
Onkyo Icon A-50
Onkyo Icon A-50
Integrated Amplifier · Class AB · 110 W into 8 ohms · $1,600
Good match
7 dB of headroom - enough, but at the modest end for this speaker, which takes up to 600 W.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
Power rises usefully into 4 ohms (110 W to 180 W).
Balanced against the price of the speakers.
19
Rotel A14 MKII
Rotel A14 MKII
Integrated Amplifier · Class A/B · 80 W into 8 ohms · $1,600
Good match
6 dB of headroom - enough, but at the modest end for this speaker, which takes up to 600 W.
Rated down to 4 ohms, comfortable with a 4 ohm speaker.
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
Rotel Diamond RA-6000
Rotel Diamond RA-6000
Integrated Amplifier · Class A/B · 200 W into 8 ohms · $4,500
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 (200 W to 350 W).
Far more expensive than the speakers. Spend it on speakers first.

Showing the best 20 of 145. Narrow it with the price range below, or a different budget split.

17 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
Anthem MCA 225 Gen 2
Anthem MCA 225 Gen 2
Power Amplifier · Class A/B · 225 W into 8 ohms · $2,300
Good match
8 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. On a 4 ohm speaker 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.
2
Rotel RB-1590
Rotel RB-1590
Power Amplifier · Class A/B · 350 W into 8 ohms · $4,599
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.
Far more expensive than the speakers. Spend it on speakers first.
3
Cambridge Audio Edge M
Cambridge Audio Edge M
Power Amplifier · Class XA · 200 W into 8 ohms
Good match
7 dB of headroom - enough, but at the modest end for this speaker, which takes up to 600 W.
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.
No current price on file for this amplifier.
4
Anthem STR Power Amplifier
Anthem STR Power Amplifier
Power Amplifier · Class A/B · 400 W into 8 ohms · $6,500
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.
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.
Far more expensive than the speakers. Spend it on speakers first.
5
McIntosh MC830
McIntosh MC830
Power Amplifier · Class A/B · 300 W into 8 ohms · $5,500
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.
Far more expensive than the speakers. Spend it on speakers first.
6
Rotel RB-1582 MkII
Rotel RB-1582 MkII
Power Amplifier · Class A/B · 200 W into 8 ohms · $2,499
Good match
7 dB of headroom - enough, but at the modest end for this speaker, which takes up to 600 W.
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.
Costs more than the speakers - worth it only if you plan to upgrade them later.
7
Advance Paris X-A220 EVO
Advance Paris X-A220 EVO
Power Amplifier · Class A/B · 220 W into 8 ohms · $2,999
Good match
8 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.
Costs more than the speakers - worth it only if you plan to upgrade them later.
8
Rotel RB-1552 MkII
Rotel RB-1552 MkII
Power Amplifier · Class A/B · 130 W into 8 ohms · $1,699
Workable
5 dB of headroom - enough, but at the modest end for this speaker, which takes up to 600 W.
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.
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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 Magnepan LRS+ specs.