What amplifier does the Polk R300 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 297 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.
Polk R300
Polk R300
Center Channel
87 dB · 8 ohm
dips to 3.8 ohm
$449 a pair
Full specs →
Power needed
15–200 W
per channel, into 8 ohms

To hit 95 dB peaks at 3 m from a pair of Polk R300, you need at least 15 W a channel. More than 200 W is wasted here - that is all Polk 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
  • -85.0 dB effective sensitivity
  • 2 dB allowed for optimistic published sensitivity
  • Published sensitivity 87 dB, used as 85.0 dB per watt.

Technics SU-R1000 with the Polk R300

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 3.8.
Power nearly doubles into 4 ohms (150 W to 300 W) - a stiff supply that copes with hard loads.
Full Technics SU-R1000 specs · Clear this amp
 
$90 $25,000

227 integrated amplifiers suit the Polk R300

Also show the 3 we do not recommend
1
WiiM Vibelink
WiiM Vibelink
Integrated Amplifier · Class D · 100 W into 8 ohms · $299
Excellent match
8 dB of headroom over what this speaker needs - peaks stay clean.
Rated down to 3 ohms, comfortable with an 8 ohm speaker that dips to 3.8.
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
Sonos Amp
Sonos Amp
Integrated Amplifier · Class D · 125 W into 8 ohms · $699
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 3.8.
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.
3
AudioControl Rialto 600
AudioControl Rialto 600
Integrated Amplifier · Class D · 100 W into 8 ohms · $899
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 3.8.
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.
4
AudioControl Bijou 600
AudioControl Bijou 600
Integrated Amplifier · Class D · 100 W into 8 ohms · $899
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 3.8.
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.
5
Emotiva BasX TA2+
Emotiva BasX TA2+
Stereo Receiver · Class A/B · 135 W into 8 ohms · $1,299
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 3.8.
Power nearly doubles into 4 ohms (135 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.
6
Fosi Audio MC351
Fosi Audio MC351
Integrated Amplifier · Class D · ? W into 8 ohms · $190
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 3.8.
No 4 ohm power rating on file. On a 8 ohm speaker dipping to 3.8 that is the figure that matters, so this one is unproven on the load.
Sensible value pick against these speakers.
7
WiiM Amp Pro
WiiM Amp Pro
Integrated Amplifier · Class D · 60 W into 8 ohms · $379
Excellent match
6 dB of headroom - enough, but at the modest end for this speaker, which takes up to 200 W.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.8.
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.
8
Onkyo Muse Y-50
Onkyo Muse Y-50
Integrated Amplifier · Class D · 125 W into 8 ohms · $1,500
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 3.8.
Power nearly doubles into 4 ohms (125 W to 250 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
9
OSD Nero Stream XD2
OSD Nero Stream XD2
Integrated Amplifier · Class D · 60 W into 8 ohms · $400
Excellent match
6 dB of headroom - enough, but at the modest end for this speaker, which takes up to 200 W.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.8.
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.
10
FiiO AIR AMP
FiiO AIR AMP
Integrated Amplifier · Class D · 90 W into 8 ohms · $300
Good 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 3.8.
Barely gains into 4 ohms (90 W to 120 W) - a modest power supply.
Balanced against the price of the speakers.
11
WiiM Amp
WiiM Amp
Integrated Amplifier · Class D · 60 W into 8 ohms · $299
Excellent match
6 dB of headroom - enough, but at the modest end for this speaker, which takes up to 200 W.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.8.
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.
12
Buchardt I150
Buchardt I150
Integrated Amplifier · Class D · 150 W into 8 ohms · $2,500
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 3.8.
Power nearly doubles into 4 ohms (150 W to 300 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
13
Technics SU-R1000
Technics SU-R1000
Integrated Amplifier · Class D · 150 W into 8 ohms · $11,999
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 3.8.
Power nearly doubles into 4 ohms (150 W to 300 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
14
Devialet Astra
Devialet Astra
Integrated Amplifier · ADH (Analog Digital Hybrid) · 150 W into 8 ohms · $20,000
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 nearly doubles into 4 ohms (150 W to 300 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
15
SVS Prime SoundBase
SVS Prime SoundBase
Integrated Amplifier · Class D · 75 W into 8 ohms · $699
Good match
7 dB of headroom - enough, but at the modest end for this speaker, which takes up to 200 W.
Rated down to 4 ohms, comfortable with an 8 ohm speaker that dips to 3.8.
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.
16
Peachtree nova150
Peachtree nova150
Integrated Amplifier · Class D · 150 W into 8 ohms · $1,199
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 3.8.
Power rises usefully into 4 ohms (150 W to 250 W).
Costs more than the speakers - worth it only if you plan to upgrade them later.
17
Anthem STR
Anthem STR
Integrated Amplifier · Class A/B · 200 W into 8 ohms · $5,000
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 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.
18
NAD Masters Series M33
NAD Masters Series M33
Integrated Amplifier · Class D · 200 W into 8 ohms · $5,999
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 3.8.
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.
19
NAD Masters Series M33 V2
NAD Masters Series M33 V2
Integrated Amplifier · Class D · 200 W into 8 ohms · $7,399
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 3.8.
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.
20
Marantz PM-10
Marantz PM-10
Integrated Amplifier · Class D · 200 W into 8 ohms · $8,999
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 3.8.
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.

Showing the best 20 of 227. 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
Cambridge Audio Edge M
Cambridge Audio Edge M
Power Amplifier · Class XA · 200 W into 8 ohms
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 3.8.
No 4 ohm power rating on file. On a 8 ohm speaker dipping to 3.8 that is the figure that matters, so this one is unproven on the load.
No current price on file for this amplifier.
2
Accuphase P-4600
Accuphase P-4600
Power Amplifier · Class A/B · 150 W into 8 ohms · $13,975
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 nearly doubles into 4 ohms (150 W to 300 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
3
Naim NAP 350
Naim NAP 350
Power Amplifier · Class A/B · 175 W into 8 ohms · $8,499
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 nearly doubles into 4 ohms (175 W to 345 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
4
Audio Research S-200
Audio Research S-200
Power Amplifier · Class A/B · 200 W into 8 ohms · $12,950
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 3.8.
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.
5
Parasound NewClassic 2125 v.2
Parasound NewClassic 2125 v.2
Power Amplifier · Class A/B · 150 W into 8 ohms · $1,250
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 3.8.
Power rises usefully into 4 ohms (150 W to 225 W).
Costs more than the speakers - worth it only if you plan to upgrade them later.
6
MOON 330A
MOON 330A
Power Amplifier · Class A/B · 125 W into 8 ohms · $4,400
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 3.8.
Power nearly doubles into 4 ohms (125 W to 250 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
7
T+A M 200
T+A M 200
Power Amplifier · Class D · 210 W into 8 ohms · $5,995
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 3.8.
Power nearly doubles into 4 ohms (210 W to 420 W) - a stiff supply that copes with hard loads.
Far more expensive than the speakers. Spend it on speakers first.
8
Parasound JCM250
Parasound JCM250
Power Amplifier · Class A/AB · 250 W into 8 ohms · $4,250
Good match
12 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.
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.

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 Polk R300 specs.

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