Short answer: the Yamaha NS-800A for better sound quality, the SVS Ultra Bookshelf for the lower price. The Yamaha NS-800A ranks #43 of 100 bookshelf speakers at $4800. The SVS Ultra Bookshelf ranks #47 at $1200, $3600 cheaper.
On the Yamaha NS-800A side: Exceptionally well-built cabinet with no internal resonance issues at all - confirmed clean in both burst decay and impedance measurements. Set against that: A wide, roughly 2kHz-10kHz scoop in the upper-midrange/lower-treble gives it a laidback, soft, low-attack character - notably worse than the reviewer’s Audio First Fidelia reference in an A/B comparison.
What the SVS Ultra Bookshelf offers: Noticeably more tonally neutral than the cheaper SVS Prime Bookshelf, with response staying within about -3dB/+1.5dB on average - a genuine step up in linearity for roughly double the price. Watch for: Still has a boosted upper mid-range/mid-range area, though less severe than the Prime - the reviewer suspects a baffle-step or tweeter-level issue rather than a resonance, giving mixes a slightly forward.
Buy the Yamaha NS-800A if sound quality matters more than the price. Buy the SVS Ultra Bookshelf if the price matters more than sound quality.
Specifications Side By Side
| Yamaha NS-800A | SVS Ultra Bookshelf | |
|---|---|---|
| Price | $4800 | $1,200 |
| Ranked | #43 of 100 in Large Size Bookshelf Speakers | #47 of 100 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 35Hz (measured, Erin’s Audio Corner) | 48Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 68Hz (measured, Erin’s Audio Corner) | 69Hz (measured, Erin’s Audio Corner) |
| Impedance | 6 ohms nominal, 4.3 ohms minimum (measured above 80Hz, Erin’s Audio Corner) | 8 ohms nominal, 3.8 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 84.9dB (measured average 300Hz-3kHz @ 2.83V/1m, Erin’s Audio Corner; 86.5dB manufacturer specified) | 87.8dB (measured average, Erin’s Audio Corner) |
| Drivers | 1.25" dome tweeter, 6.5" mid-woofer | 6.5" composite glass fiber cone woofer, 1" aluminum dome tweeter |
| Weight | 28.7 lbs / 13.0 kg (28.7 lbs) each | 19 lbs each |
| Dimensions | 16.5"H x 9.1"W x 14.1"D (419.1 x 231.8 x 358.8 mm) | 14.9"H x 8.5"W x 10"D |
| Woofer Cabinet | Bass reflex | - |
| Crossover Frequency | 2600Hz | - |
| Output Power | 40W nominal, 120W max | - |
| Frequency Response | - | 45Hz - 32kHz (manufacturer specified) |
| Recommended Power | - | 20-150W |
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The Two Speakers In Full
Yamaha NS-800A: $4800 The Music Room
Pros: Exceptionally well-built cabinet with no internal resonance issues at all - confirmed clean in both burst decay and impedance measurements. Good, wide directivity (~75 degrees horizontal) that stays consistent enough to EQ successfully. Distortion is low, staying under 3% at 96dB, and dynamic range holds up well until right near its 102dB limit. A shallower, higher-frequency bass rolloff profile (F3 68Hz, F10 35Hz) means it can be placed closer to the wall (about a foot) without turning boomy, actually gaining bass presence rather than losing it.
Cons: A wide, roughly 2kHz-10kHz scoop in the upper-midrange/lower-treble gives it a laidback, soft, low-attack character - notably worse than the reviewer’s Audio First Fidelia reference in an A/B comparison. On top of that, treble breaks up badly above 10kHz, swinging up as much as 8dB - a significant, named flaw. Sounds inconsistently voiced as a result (bright on some material like cymbals and shakers, dull/laidback on vocals and instrument attack) until corrected with real parametric EQ (the reviewer needed a +2dB boost around 4.5kHz at Q0.5 plus taming the treble spike to bring it to life) combined with near-wall placement and 30-degree toe-out. Without that combination, it’s a tough sale for a $4,800 bookshelf speaker.
Full Yamaha NS-800A review and specifications →
| Bass Extension (-10dB) | 35Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 68Hz (measured, Erin's Audio Corner) |
| Crossover Frequency | 2600Hz |
| Dimensions | 16.5"H x 9.1"W x 14.1"D (419.1 x 231.8 x 358.8 mm) |
| Drivers | 1.25" dome tweeter, 6.5" mid-woofer |
| Impedance | 6 ohms nominal, 4.3 ohms minimum (measured above 80Hz, Erin's Audio Corner) |
| Output Power | 40W nominal, 120W max |
| Sensitivity | 84.9dB (measured average 300Hz-3kHz @ 2.83V/1m, Erin's Audio Corner; 86.5dB manufacturer specified) |
| Weight | 28.7 lbs / 13.0 kg (28.7 lbs) each |
| Woofer Cabinet | Bass reflex |
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- Links
- Reviews, Comparisons and Sound Samples
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SVS Ultra Bookshelf: $1,200 Amazon
Pros: Noticeably more tonally neutral than the cheaper SVS Prime Bookshelf, with response staying within about -3dB/+1.5dB on average - a genuine step up in linearity for roughly double the price. Slightly higher sensitivity than the Prime (about 87.8dB) with similarly wide, consistent horizontal radiation. Toeing the speakers out about 30 degrees smooths the in-room response nicely if the on-axis tonal balance runs a bit forward for your taste. Distortion and dynamics hold up well; this is a mature, well-regarded design (roughly a decade old at review time) that’s aged better than many contemporaries.
Cons: Still has a boosted upper mid-range/mid-range area, though less severe than the Prime - the reviewer suspects a baffle-step or tweeter-level issue rather than a resonance, giving mixes a slightly forward, occasionally tinny character. Bass extension is modest for the price (F3 69Hz, F10 48Hz measured) - SVS is clearly counting on you pairing this with one of their subwoofers rather than expecting full-range performance from the bookshelf alone. Measured minimum impedance dips to about 3.8 ohms, so a 4-ohm-stable amplifier is recommended rather than a basic 8-ohm-only AVR. Radiation pattern is wide (around 80°), wider than the reviewer’s typical ~60° sweet spot preference, so acoustic treatment on nearby walls helps tame reflections and keep the off-axis response from diverging too much from on-axis.
Full SVS Ultra Bookshelf review and specifications →
| Bass Extension (-10dB) | 48Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 69Hz (measured, Erin's Audio Corner) |
| Dimensions | 14.9"H x 8.5"W x 10"D |
| Drivers | 6.5" composite glass fiber cone woofer, 1" aluminum dome tweeter |
| Frequency Response | 45Hz - 32kHz (manufacturer specified) |
| Impedance | 8 ohms nominal, 3.8 ohms minimum (measured, Erin's Audio Corner) |
| Recommended Power | 20-150W |
| Sensitivity | 87.8dB (measured average, Erin's Audio Corner) |
| Weight | 19 lbs each |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- SVS Ultra Bookshelf vs Dynaudio Contour 20i
- SVS Ultra Bookshelf vs Definitive Technology Demand D11
- SVS Ultra Bookshelf vs Infinity Reference R162
- SVS Ultra Bookshelf vs ELAC DBR62
- SVS Ultra Bookshelf vs ELAC Uni-Fi Reference UBR62
- SVS Ultra Bookshelf vs Klipsch RP-600M II
- SVS Ultra Bookshelf vs Dynaudio Emit 20
- SVS Ultra Bookshelf vs Power Sound Audio MT-110-M
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