Short answer: the Philharmonic Ceramic Mini. It ranks #2 of 179 bookshelf speakers by sound quality, rated 4.7/5, at $900. The Sony SS-CS5 M2 ranks #93, rated 3.2/5, at $278, $622 cheaper, which does not close the gap in sound quality.
What the Sony SS-CS5 M2 does well: Budget three way bookshelf speakers with a better braced cabinet and an easy load for a standard receiver. The tradeoff: Mild sibilance in the 3-5kHz range stands out on S and T sounds in vocals.
The Philharmonic Ceramic Mini is the better-sounding, deeper-bass option. A beautifully finished bookshelf speaker with near reference accuracy, low distortion, a touch of warmth and a wide soundstage. Its bass reaches about 51Hz before falling 3dB, against 80Hz for the Sony SS-CS5 M2. The tradeoff: Somewhat limited output capability for its size: audible woofer compression (“flopping”) around 95dB at 3 meters for a stereo pair, so keep to moderate levels or pair with a subwoofer for home theater use.
Buy the Philharmonic Ceramic Mini. It is rated higher for sound quality, and saving $622 with the Sony SS-CS5 M2 does not make up for the sound-quality gap.
Looking for alternatives? See the complete Passive Home rankings.
Budget three way bookshelf speakers with a better braced cabinet and an easy load for a standard receiver.
A beautifully finished bookshelf speaker with near reference accuracy, low distortion, a touch of warmth and a wide soundstage.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Sony SS-CS5 M2 | Philharmonic Ceramic Mini | |
|---|---|---|
| Price | $278.00 per pair | $900 per pair |
| Ranked | #93 of 179 in Medium Size Bookshelf Speakers | #2 of 179 in Medium Size Bookshelf Speakers |
| Bass Extension (-10dB) | 54Hz (measured, Erin’s Audio Corner) | 36Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 80Hz (measured, Erin’s Audio Corner) | 51Hz (measured, Erin’s Audio Corner) |
| Dimensions | 13.2”H x 7”W x 8.7”D (335 x 178 x 220 mm) | 12” x 8.5” x 11.3” (305 x 216 x 286 mm) |
| Impedance | 6 ohms | 4 ohms nominal (3.2 ohms min, 15 ohms max) (measured, Erin’s Audio Corner) |
| Sensitivity | 82.5dB | 82dB (2.83V/1m, measured by Erin’s Audio Corner) |
| Drivers | 5.12” woofer, 0.98 in tweeter; 0.75-inch supertweeter; 0.75-inch supertweeter; 0.75-inch supertweeter; 0.75-inch supertweeter | 5.25” ceramic woofer, 1” ceramic dome tweeter |
| Weight | 9.5 lbs (4.3 kg) each | 17 lbs (7.7 kg) |
| Woofer Cabinet | ported, rear | ported, rear |
| DIY Kit | No | No |
| Frequency Response | - | 55Hz - 20kHz (+1.5/-3dB, Manufacturer specified, ported) |
| Crossover Frequency | - | 2kHz (Linkwitz-Riley 4th order) |
| Country | - | USA (Vienna, Virginia) |
| Spinorama Preference Score | - | 5.77 |
| Spinorama Preference Score with Perfect Sub | - | 7.78 |
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