Yamaha A-S301

Yamaha is a giant of audio, and the A-S "Natural Sound" series is its line of traditional integrateds: serious build, full controls, a clean and dynamic sound. The A-S301 sits in the middle of the series, above the A-S201 and below the A-S501, and it is the one that adds the DAC and the right power for the entry class.

In our ranking of integrated amps it takes fourth place, with the top-pick badge. It is not fourth for want of merit — it is the most powerful and one of the most complete — but because its sound on vinyl, clean and dynamic as it is, does not have the musicality of the Rega or the Marantz. And in a ranking where vinyl comes first, that detail counts.

The build is serious, in the best Yamaha tradition: an aluminium front panel with a hairline finish, quality knobs "borrowed from the top models", a custom transformer, 6,800 µF capacitors and aluminium heat sinks. Inside is the ToP-ART technology (Total Purity Audio Reproduction), with a symmetrical signal path from input to output and an anti-resonance base to keep vibration at bay. It is a machine that gives an impression of solidity and durability.

On the feature side it is rich: 60 watts (the most in the ranking), a built-in DAC with optical and coaxial inputs for a TV and digital players, the MM phono stage, the Pure Direct mode that bypasses the controls for the cleanest path, continuously variable loudness, and dual speaker outputs (A/B) to drive two pairs or two rooms. There is also a subwoofer output. It does not, however, have built-in Bluetooth: wireless needs the optional adapter.

The character must be stated plainly, because it is its defining trait. The A-S301 is powerful, clean and dynamic: with 60 watts and a high damping factor it holds the speakers with authority, and on a dense, rhythmic track it pushes with control, without smearing. The Pure Direct mode makes it even more direct and transparent. It is an amp that never gets into difficulty.

But it is more muscular than refined. The Yamaha "Natural Sound" is clean and detailed, a touch forward, rather than warm and enveloping: on vinyl it does not have the musical flow of the Rega io nor the body of the Marantz. Those after energy, control and dynamics will love it; those after analogue finesse and warmth will find it a little clinical. It is a matter of temperament, and it is honest to say so.

On vinyl the A-S301 does its job cleanly: it has an MM phono stage with RIAA, so you connect the turntable directly without an external preamp, and its power gives the bass control and drive. With demanding or low-sensitivity speakers — the ones that put the Rega's 30 watts in trouble — the A-S301 has the headroom to make them sing effortlessly.

The limit is not technical but of character: it is clean and dynamic more than musical and warm. And like the others in the class it is MM only: with a moving coil you need an external MC preamp. For the vinyl purist chasing warmth, it is not the first choice; for those with thirsty speakers who want power and control, it is among the most capable of the group.

The A-S301 is the most powerful and one of the most versatile in the ranking, and this explains an apparent oddity in the scores: on the mean of the four criteria it reaches 7.4, level with the Cambridge AXA35 (third) and the NAD D 3020 V2 (fifth) — yet it stays fourth. It is not a contradiction: the power and the specification keep its mean high, while the sound on vinyl — where our ranking looks first — is its weakest point against the rivals.

Against the others: the Rega io (first) has half the power but twice the musicality on vinyl; the Marantz (second) has the better sound and a more refined DAC; the Cambridge (third) costs less and is cleaner in analogue. The Yamaha answers with power and flexibility: 60 watts for difficult speakers, digital inputs for more sources. It is the choice of power and versatility, not of analogue finesse — and it is why it is fourth, not for the quality of the machine, which is high.

The A-S301 is the right amp when the speakers ask for power. Its 60 watts, with a 4-ohm minimum load, drive even the most demanding speakers of our speaker ranking well — the low-sensitivity or slightly thirsty ones, where less powerful amps struggle. With the dual A/B output you can also run two pairs of speakers or two rooms.

On the source side it is flexible: a turntable with an MM cartridge in the phono input, a TV or Blu-ray player in the digital inputs, plus line sources. It is the centre of a system that is not only vinyl but also home entertainment — less suited, instead, to the purist chain in the style of the £800 system, where analogue character comes before power.