Short answer: the Quested S8R MkIII. It ranks #82 of 86 powered bookshelf speakers by sound quality (rated 3.5/5) at $3,330 and is still sold new; the Quested S8R ranks #83 (rated 3.4/5) and is discontinued, so it is only an option used.
Why pick the Quested S8R MkIII: Quested’s current 8” two-way active monitor with 370W of class AB power from a linear supply (220W to the woofer, 150W to the 28mm soft dome tweeter), rated to 110dB. The tradeoff: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from its measured predecessor.
The case for the Quested S8R: A bi-amplified studio monitor with an 8” woofer and 28mm soft dome tweeter. The tradeoff: That data is low quality, digitized from a third-party chart.
Buy the Quested S8R MkIII. It is rated higher for sound quality; the Quested S8R is no longer sold new.
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Specifications Side By Side
| Quested S8R MkIII | Quested S8R | |
|---|---|---|
| Price | $3,330 per pair | $3,000 per pair Discontinued |
| Ranked | #82 of 86 in Large Size Powered Bookshelf Speakers | #83 of 86 in Large Size Powered Bookshelf Speakers |
| Drivers | 8” (200mm) woofer, 28mm soft dome tweeter | 8” (200mm) woofer, 28mm soft dome tweeter |
| Amplifier Power | 370W RMS (220W LF + 150W HF), class AB | Bi-amplified, class AB |
| Frequency Response | 50Hz-20kHz (manufacturer specified) | - |
| Maximum SPL | 110dB (manufacturer specified) | - |
| Dimensions | 16.9”H x 11.8”W x 14.6”D (430 x 300 x 370 mm) | - |
| Weight | 42.3 lbs (19.2 kg) each | - |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | Yes | Yes |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
| Bluetooth | No | No |
| DIY Kit | No | No |
| Bass Extension (-3dB) | - | 33.1Hz (measured, third-party data via spinorama.org) |
| Bass Extension (-10dB) | - | about 27.7Hz (measured, third-party data via spinorama.org) |
| Spinorama Preference Score | - | 4.26 |
| Spinorama Preference Score with Perfect Sub | - | 5.69 |
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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
Quested S8R MkIII: $3,330 per pair Estimated Vintage King eBay
Older model: the Quested S8R (ranked lower, rated 3.4/5).
Pros: Quested’s current 8” two-way active monitor with 370W of class AB power from a linear supply (220W to the woofer, 150W to the 28mm soft dome tweeter), rated to 110dB.
Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from its measured predecessor. It weighs 19.2kg each and is a large nearfield monitor for desks and studios.
Full Quested S8R MkIII review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 370W RMS (220W LF + 150W HF), class AB |
| Aux Input | No |
| Bluetooth | No |
| Coaxial Input | No |
| DIY Kit | No |
| Dimensions | 16.9”H x 11.8”W x 14.6”D (430 x 300 x 370 mm) |
| Drivers | 8” (200mm) woofer, 28mm soft dome tweeter |
| Frequency Response | 50Hz-20kHz (manufacturer specified) |
| HDMI Input | No |
| Maximum SPL | 110dB (manufacturer specified) |
| Optical Input | No |
| RCA Input | No |
| TRS Input | Yes |
| USB Input | No |
| Weight | 42.3 lbs (19.2 kg) each |
| XLR Input | Yes |
- 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.
Quested S8R: $3,000 per pair Discontinued eBay
Newer model: the Quested S8R MkIII, ranked higher, estimated 3.5/5.
Pros: A bi-amplified studio monitor with an 8” woofer and 28mm soft dome tweeter. The only Spinorama data shows very deep bass, 33.1Hz (-3dB) and about 28Hz (-10dB), and consistent directivity (2.62dB directivity index deviation). Measured bass extension of 33.1Hz (-3dB).
Cons: That data is low quality, digitized from a third-party chart. The listening window spans 3.6dB from 300Hz to 5kHz, for a preference score of 4.26 that only rises to 5.69 with an ideal subwoofer. Replaced by the S8R MkIII. Discontinued.
Full Quested S8R review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | Bi-amplified, class AB |
| Aux Input | No |
| Bass Extension (-10dB) | about 27.7Hz (measured, third-party data via spinorama.org) |
| Bass Extension (-3dB) | 33.1Hz (measured, third-party data via spinorama.org) |
| Bluetooth | No |
| Coaxial Input | No |
| DIY Kit | No |
| Drivers | 8” (200mm) woofer, 28mm soft dome tweeter |
| HDMI Input | No |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 4.26 |
| Spinorama Preference Score with Perfect Sub | 5.69 |
| TRS Input | Yes |
| USB Input | No |
| XLR Input | Yes |
- Reviews, Comparisons and Sound Samples