Short answer: the SVS Ultra Bookshelf for better sound quality, the Dynaudio Emit 20 for the lower price. The SVS Ultra Bookshelf ranks #45 of 84 bookshelf speakers at $1200. The Dynaudio Emit 20 ranks #50 at $1049, $151 cheaper.
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, occasionally tinny…
What the Dynaudio Emit 20 offers: Two-way design with a 28mm Esotar soft dome tweeter (Hexis-damped) and an 18cm mid-woofer, using a first-order crossover on the tweeter and second-order on the woofer. Watch for: A resonance around 600-800Hz gives snares and similar percussion a muffled, flat quality lacking impact - confirmed as originating in the woofer itself (isolated via measurements of the raw driver out of the cabinet), and…
Buy the SVS Ultra Bookshelf if sound quality matters more than the price. Buy the Dynaudio Emit 20 if the price matters more than sound quality.
Specifications Side By Side
| SVS Ultra Bookshelf | Dynaudio Emit 20 | |
|---|---|---|
| Price | $1,200 | $1,049.00 |
| Ranked | #45 of 84 in Large Size Bookshelf Speakers | #50 of 84 in Large Size Bookshelf Speakers |
| Drivers | 6.5" composite glass fiber cone woofer, 1" aluminum dome tweeter | 7.1" Magnesium Silicate Polymer woofer, 1.1" Cerotar soft dome with Hexis tweeter |
| Dimensions | 14.9"H x 8.5"W x 10"D | 14.6"H x 8.1"W x 12.3"D (370.0 x 205.0 x 312.0 mm) |
| Weight | 19 lbs each | 12.8 lbs / 5.8 kg |
| Impedance | 8 ohms nominal, 3.8 ohms minimum (measured, Erin’s Audio Corner) | 6 ohms nominal (5.5 ohms minimum above 80Hz, measured, Erin’s Audio Corner) |
| Sensitivity | 87.8dB (measured average, Erin’s Audio Corner) | 83.5dB (measured, Erin’s Audio Corner; 86dB manufacturer specified) |
| Bass Extension (-3dB) | 69Hz (measured, Erin’s Audio Corner) | 54Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 48Hz (measured, Erin’s Audio Corner) | 33Hz (measured, Erin’s Audio Corner) |
| Frequency Response | 45Hz - 32kHz (manufacturer specified) | - |
| Recommended Power | 20-150W | - |
| Woofer Cabinet | - | ported, rear |
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The Two Speakers In Full
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 |
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Dynaudio Emit 20: $1,049.00 Amazon
Pros: Two-way design with a 28mm Esotar soft dome tweeter (Hexis-damped) and an 18cm mid-woofer, using a first-order crossover on the tweeter and second-order on the woofer. Exceptional bass extension for a bookshelf speaker - reaches a clean, authoritative 40Hz in-room, rare enough that the reviewer says most listeners could skip a subwoofer for typical music. Very low distortion across the board, staying below 1% THD down to 40Hz at 86dB and below 3% even at 96dB - unusually clean bass performance where most two-way bookshelf speakers start rising in distortion around 80Hz. Wide, remarkably consistent horizontal directivity (about ±50-60°) that holds steady up to roughly 13kHz - rare for a speaker in this format, thanks to a beveled tweeter edge that acts as a mild waveguide. Excellent compression and dynamic-range linearity at the frequency extremes, actually showing slight bass enhancement rather than the sharp low-end compression common in similarly-sized bookshelf speakers.
Cons: A resonance around 600-800Hz gives snares and similar percussion a muffled, flat quality lacking impact - confirmed as originating in the woofer itself (isolated via measurements of the raw driver out of the cabinet), and attempts at constrained-layer damping didn’t resolve it. A peak around 4kHz adds a sharp, edgy quality to some male vocals. A roughly 5dB boost above 10kHz gives cymbals and hi-hats excess shimmer that can sound unnatural, especially pointed directly on-axis. Vertical dispersion shows two separate crossover-related notches (above and below the tweeter reference line around 5kHz) rather than the usual single one, a direct consequence of the shallow crossover slopes used on both drivers. Multitone distortion is elevated in the midrange, possibly due to the woofer’s magnet structure lacking a shorting ring. Best aimed slightly off-axis (about 10-15° of toe-out) to tame the excess high-frequency shimmer, rather than pointed straight at the listener.
Full Dynaudio Emit 20 review and specifications →
| Bass Extension (-10dB) | 33Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 54Hz (measured, Erin's Audio Corner) |
| Dimensions | 14.6"H x 8.1"W x 12.3"D (370.0 x 205.0 x 312.0 mm) |
| Drivers | 7.1" Magnesium Silicate Polymer woofer, 1.1" Cerotar soft dome with Hexis tweeter |
| Impedance | 6 ohms nominal (5.5 ohms minimum above 80Hz, measured, Erin's Audio Corner) |
| Sensitivity | 83.5dB (measured, Erin's Audio Corner; 86dB manufacturer specified) |
| Weight | 12.8 lbs / 5.8 kg |
| Woofer Cabinet | ported, rear |
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