A valve amplifier against a solid-state one. They are not really rivals: they differ in character, in what they will drive and in what owning them involves, so start there rather than with the watts.
| Area | Better | Why |
|---|
| Power | B | SVS Prime SoundBase has more power - 75W against 28W into 8 ohms. That is about 4.3dB, so it plays usefully louder before it runs out and has more in hand on peaks. |
| Room size | depends | We rate FiiO EA13 the better fit for desk or near-field listening and a small room, and SVS Prime SoundBase for a mid-size room, a large room and a very large room. Match the amplifier to the room you actually have, not the one you want. |
| Grip on hard loads | B | SVS Prime SoundBase holds up better into a 4-ohm load: its output nearly doubles to 150W, where the other barely increases. That matters with demanding speakers far more than the 8-ohm figure does. |
| Noise floor | A | FiiO EA13 is the quieter design on paper - 97dB against 90dB. Audible mainly with sensitive speakers in a quiet room. |
| Built-in DAC | B | SVS Prime SoundBase has a DAC on board; the other needs an external one, which is another box, another power lead and another purchase. |
| Analogue inputs | A | FiiO EA13 takes more analogue sources - 4 against 2. |
| Use with a TV | depends | Only SVS Prime SoundBase has HDMI ARC/eARC, so the television can drive it directly and one remote controls the volume. If the system is for music only, this changes nothing. |
| Amplifier type | depends | FiiO EA13 is Tube and SVS Prime SoundBase is Solid State. Valve designs are usually warmer and softer at the limits and need their tubes replaced eventually; solid state is the lower-maintenance choice. This is a taste and ownership decision, not a quality one. |
| Shelf space | depends | SVS Prime SoundBase takes up about 65% less shelf area (517cm² against 1458cm²), and it is 115mm shallower, which is the measurement that decides whether a rack door shuts. |
| Price | B | SVS Prime SoundBase costs less - $699 against $770 at list. |
| Watts per dollar | B | SVS Prime SoundBase is the cheaper watt - about $9 per watt against $28. A blunt measure, and it says nothing about how either sounds, but it is the honest one for raw output. |
A FiiO EA13 B SVS Prime SoundBase
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both amplifiers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
SVS Prime SoundBase has the edge on paper, though not by much. The rows marked "depends" are more likely to decide this than the score is. If your speakers are a difficult load - 4 ohms nominal, big woofers, or a sensitivity in the low 80s - SVS Prime SoundBase is the safer partner, because how an amplifier behaves when the impedance drops matters more than its 8-ohm rating. Start with the room. In a large or open-plan room, or with speakers that are hard to drive - low sensitivity, or an impedance that dips - SVS Prime SoundBase has the headroom, and headroom is what stops an amplifier hardening up on peaks. At desk distance or in a small room, 28 watts is already more than most people ever use, and the extra 47 watts would be headroom you pay for and never hear - we rate SVS Prime SoundBase poorly for near-field use for exactly that reason.
What a spec sheet cannot show: how either sounds with your speakers, how the controls feel day to day, and what the app is like to live with - which is where most all-in-one amplifiers are actually won or lost. Power figures are the manufacturers' own and are not measured to a common standard, so treat small differences as noise. If you can hear both, that will tell you more than any row above.