Short answer: the Monitor Audio Silver 50 7G for better sound quality, the Polk Audio XT15 for the lower price. The Monitor Audio Silver 50 7G ranks #14 of [92 bookshelf speakers](/passive/bookshelf-medium/#monitor-audio-silver-50-0 lbs (7 g)), rated 4.2/5, at $799. The Polk Audio XT15 ranks #29, rated 3.7/5, at $179, $620 cheaper.
Buy the Monitor Audio Silver 50 7G if sound quality matters more than the price. Buy the Polk Audio XT15 if the price matters more than sound quality.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Monitor Audio Silver 50 7G | Polk Audio XT15 | |
|---|---|---|
| Price | $799 per pair | $179.00 per pair |
| Ranked | #14 of 92 in Medium Size Bookshelf Speakers | #29 of 92 in Medium Size Bookshelf Speakers |
| Enclosure | ported | - |
| Drivers | 1” C-CAM Gold Dome tweeter, 5.25” C-CAM RST II mid bass driver | 1” Terylene dome tweeter, 5.25” bi-laminate paper woofer |
| Dimensions | 11.1”H x 6.5”W x 10.7”D (282 x 165 x 272 mm) | 16.51 x 18.24cm (6.5 x 7.18 in), 4.08kg (9 lb) each |
| Weight | 12.3 lbs (5.6 kg) each | 9 lbs (4.08 kg) each |
| Sensitivity | 86dB @ 2.83V/1m | 86dB (1W/1m) |
| Impedance | 8 ohms nominal, 3.9 ohms minimum | 4/8-ohm compatible |
| Bass Extension (-3dB) | 87.9Hz (measured, Erin’s Audio Corner) | 77.6Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 50.7Hz (measured, Erin’s Audio Corner) | 54.2Hz (measured, spinorama.org) |
| Crossover Frequency | 2.6kHz | - |
| Port Tuning | 58Hz | - |
| Power Handling | 100W RMS handling, 40-100W recommended amplifier power | - |
| Warranty | Lifetime, parts and labor | - |
| Country | China | - |
| Maximum SPL | 104dB (manufacturer specified) | - |
| Spinorama Preference Score | 5.40 | 4.56 |
| Spinorama Preference Score with Perfect Sub | 8.01 | 7.31 |
| DIY Kit | No | No |
| Woofer Cabinet | - | Ported |
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Prices on this page were last checked October 3, 2026 at 10:26 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Monitor Audio Silver 50 7G: $799 per pair Crutchfield eBay
Pros: The 7th generation C-CAM Gold Dome tweeter with UD Waveguide II and RST II mid bass driver produce a listening window smoothness score of 0.50 at an accessible price, earning a Hi-Fi News Outstanding Product Award. A HiVe II reflex port system is tuned to 58Hz for real bass weight from a compact 5.25 inch two way. Measured bass extension of 87.9Hz (-3dB).
Cons: The on axis response trends noticeably upward toward the treble (rising about 0.5dB per octave, a steep tilt), which can read as bright on already bright recordings. Off axis sound also tracks the on axis response less consistently than most speakers here. Bass extension is limited to a measured 87.9Hz at -3dB, so a subwoofer is recommended for full range use, and minimum impedance dips to 3.9 ohms at 250Hz.
Full Monitor Audio Silver 50 7G review and specifications →
| Bass Extension (-10dB) | 50.7Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 87.9Hz (measured, Erin’s Audio Corner) |
| Country | China |
| Crossover Frequency | 2.6kHz |
| DIY Kit | No |
| Dimensions | 11.1”H x 6.5”W x 10.7”D (282 x 165 x 272 mm) |
| Drivers | 1” C-CAM Gold Dome tweeter, 5.25” C-CAM RST II mid bass driver |
| Enclosure | ported |
| Impedance | 8 ohms nominal, 3.9 ohms minimum |
| Maximum SPL | 104dB (manufacturer specified) |
| Port Tuning | 58Hz |
| Power Handling | 100W RMS handling, 40-100W recommended amplifier power |
| Sensitivity | 86dB @ 2.83V/1m |
| Spinorama Preference Score | 5.40 |
| Spinorama Preference Score with Perfect Sub | 8.01 |
| Warranty | Lifetime, parts and labor |
| Weight | 12.3 lbs (5.6 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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Polk Audio XT15: $179.00 per pair Amazon B&H Photo Video Crutchfield eBay
Pros: Very low $179/pair entry price for a Hi-Res Audio Certified 2-way design that’s Dolby Atmos and DTS:X compatible, and works with either 4- or 8-ohm amplifier outputs so it drops into almost any AVR without matching concerns. Off axis sound tracks the on axis response reasonably consistently for the price. Measured bass extension of 77.6Hz (-3dB).
Cons: Bass rolls off early, at 77.6Hz (-3dB) and 54.2Hz (-10dB). On-axis response is relatively uneven, with an average deviation of about 0.45dB, and its listening window is less smooth than pricier speakers. Modest 86dB sensitivity wants a reasonably powered amp channel. The 5.25” bi-laminate paper woofer is Polk’s entry-tier driver, not the polypropylene/Turbine cones used in its pricier Signature Elite/Reserve lines.
Full Polk Audio XT15 review and specifications →
| Bass Extension (-10dB) | 54.2Hz (measured, spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 77.6Hz (measured, spinorama.org) |
| DIY Kit | No |
| Dimensions | 16.51 x 18.24cm (6.5 x 7.18 in), 4.08kg (9 lb) each |
| Drivers | 1” Terylene dome tweeter, 5.25” bi-laminate paper woofer |
| Impedance | 4/8-ohm compatible |
| Sensitivity | 86dB (1W/1m) |
| Spinorama Preference Score | 4.56 |
| Spinorama Preference Score with Perfect Sub | 7.31 |
| Weight | 9 lbs (4.08 kg) each |
| Woofer Cabinet | Ported |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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