Short answer: the Polk Audio Reserve R350. It ranks #40 of 98 center channel speakers by sound quality, rated 3.7/5, at $519; the Wharfedale EVO4.CS ranks #63, rated 3.5/5, and costs $699, so there is little reason to consider the other one.
What the Polk Audio Reserve R350 does well: A slim sealed center, 141mm tall and 188mm deep, with a 1” Pinnacle ring radiator tweeter and four 4” Turbine cone woofers, designed to sit under a TV or mount on a wall. Watch for: Bass rolls off at 85Hz (-3dB) and about 49Hz (-10dB), so a subwoofer is needed.
What the Wharfedale EVO4.CS does well: Compact 2-way center with AMT tweeter and dual 5-inch woven Kevlar woofers with downward-firing slot-loaded port. The catch: Omits the dedicated dome midrange of the EVO4.C, exhibiting traditional 2-way MTM horizontal directivity narrowing off-axis.
Buy the Polk Audio Reserve R350. It is rated higher for sound quality than the Wharfedale EVO4.CS and costs less, so only choose the other one for a particular feature it does better.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Polk Audio Reserve R350 | Wharfedale EVO4.CS | |
|---|---|---|
| Price | $519.00 each | $699.00 |
| Ranked | #40 of 98 in Center Channel Speakers | #63 of 98 in Center Channel Speakers |
| Drivers | 1” Pinnacle ring radiator tweeter, 4x 4” Turbine cone woofers | 30 x 60mm AMT tweeter, 2 x 5” (130mm) woven Kevlar woofers |
| Frequency Response | 75Hz-35kHz -3dB (manufacturer specified) | 50Hz - 22kHz (±3dB) |
| Sensitivity | 87dB (2.83V/1m, manufacturer specified) | 89dB (2.83V/1m) |
| Impedance | 3.9 ohms minimum, compatible with 4 to 8 ohm outputs (manufacturer specified) | 8 ohms nominal (4.4 ohms minimum) |
| Woofer Cabinet | sealed | - |
| Dimensions | 5.6”H x 30”W x 7.4”D (141 x 762 x 188 mm) | 7.3”H x 23”W x 10.8”D (185 x 585 x 275 mm) |
| Weight | 19.8 lbs (9 kg) | 25.6 lbs (11.6 kg) |
| Bass Extension (-3dB) | 85.0Hz (measured, Audio Science Review) | - |
| Bass Extension (-10dB) | about 48.7Hz (measured, Audio Science Review) | - |
| Spinorama Preference Score | 3.97 | - |
| Spinorama Preference Score with Perfect Sub | 6.72 | - |
| DIY Kit | No | No |
Related Speaker Comparisons
How Polk Audio Reserve R350 compares with other leading options:
- Polk Audio XT35 vs Polk Audio Reserve R350
- Klipsch RP-504C II vs Polk Audio Reserve R350
- Polk Audio Reserve R400 vs Polk Audio Reserve R350
- Klipsch RP-404C II vs Polk Audio Reserve R350
- Polk Audio Reserve R350 vs Polk Audio Signature Elite ES35
Prices on this page were last checked October 5, 2026 at 10:21 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
Polk Audio Reserve R350: $519.00 each Amazon eBay
Pros: A slim sealed center, 141mm tall and 188mm deep, with a 1” Pinnacle ring radiator tweeter and four 4” Turbine cone woofers, designed to sit under a TV or mount on a wall. Audio Science Review measured a fairly flat on-axis response (0.31 average deviation), and the score rises to 6.72 with an ideal subwoofer. Measured bass extension of 85.0Hz (-3dB).
Cons: Bass rolls off at 85Hz (-3dB) and about 49Hz (-10dB), so a subwoofer is needed. The listening window spans 3.0dB from 300Hz to 5kHz, and the preference score without a subwoofer is a middling 3.97.
Full Polk Audio Reserve R350 review and specifications →
| Bass Extension (-10dB) | about 48.7Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 85.0Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 5.6”H x 30”W x 7.4”D (141 x 762 x 188 mm) |
| Drivers | 1” Pinnacle ring radiator tweeter, 4x 4” Turbine cone woofers |
| Frequency Response | 75Hz-35kHz -3dB (manufacturer specified) |
| Impedance | 3.9 ohms minimum, compatible with 4 to 8 ohm outputs (manufacturer specified) |
| Sensitivity | 87dB (2.83V/1m, manufacturer specified) |
| Spinorama Preference Score | 3.97 |
| Spinorama Preference Score with Perfect Sub | 6.72 |
| Weight | 19.8 lbs (9 kg) |
| Woofer Cabinet | sealed |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Wharfedale EVO4.CS: $699.00 Estimated Crutchfield eBay
Pros: Compact 2-way center with AMT tweeter and dual 5-inch woven Kevlar woofers with downward-firing slot-loaded port. More compact 23-inch width fits medium-sized consoles.
Cons: Omits the dedicated dome midrange of the EVO4.C, exhibiting traditional 2-way MTM horizontal directivity narrowing off-axis. Rating estimated from EVO4 testing.
Full Wharfedale EVO4.CS review and specifications →
| DIY Kit | No |
|---|---|
| Dimensions | 7.3”H x 23”W x 10.8”D (185 x 585 x 275 mm) |
| Drivers | 30 x 60mm AMT tweeter, 2 x 5” (130mm) woven Kevlar woofers |
| Frequency Response | 50Hz - 22kHz (±3dB) |
| Impedance | 8 ohms nominal (4.4 ohms minimum) |
| Sensitivity | 89dB (2.83V/1m) |
| Weight | 25.6 lbs (11.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons