{"product_id":"atollin300evosi","title":"Atoll IN300 Evolution Integrated Amplifier, Silver","description":"\u003cp\u003eThe Atoll IN300 Evolution is an analog stereo integrated amplifier in true dual-mono construction, delivering 2×150 watts at 8 ohms and upgradable with phono and DAC cards.\u003c\/p\u003e\n\u003cp\u003eIt's the second generation of a unit that stood as the benchmark in its class for years — and the successor doesn't break anything, it tidies up.\u003c\/p\u003e\n\u003ch2\u003eWhy the IN300 Evolution?\u003c\/h2\u003e\n\u003cp\u003eBecause of what you don't see. Two 440 VA toroidal transformers, twelve smoothing capacitors totalling 86,150 µF, a power stage built from MOSFETs in triple push-pull, each channel with its own power supply right down to the rectifier. Sixteen kilograms, most of which goes into the power supply. The result is an amplifier that doesn't buckle at 4 ohms but steps up to 2×260 watts.\u003c\/p\u003e\n\u003ch2\u003eWhat you'll hear\u003c\/h2\u003e\n\u003cp\u003eControl. The IN300 Evolution grabs speakers by the scruff of the neck and doesn't let go — the bass is dry rather than thick, the midrange is open without harshness, and at higher levels exactly what should happen, happens: nothing. No congestion, no hardening. Five RCA inputs, one XLR input, and a home cinema bypass are all there, plus two pre-outs for a subwoofer or bi-amping.\u003c\/p\u003e\n\u003ch3\u003eWho is the IN300 Evolution for?\u003c\/h3\u003e\n\u003cp\u003eFor anyone with demanding speakers and a larger room — and for anyone who wants to buy an amplifier they'll still have in ten years. \u003cstrong\u003ePlain talk:\u003c\/strong\u003e it doesn't come with streaming, and the digital inputs are an option card, not standard equipment. If you want a network source in the same chassis, the SDA300 Signature is the better fit. And in a small room with high-efficiency speakers, you'll be running it in the first quarter of the dial — that's waste, not virtue.\u003c\/p\u003e\n\u003ch2\u003eOur verdict\u003c\/h2\u003e\n\u003cp\u003eA brute of an amplifier, and a well-mannered one at that. On 3 May 2025, LowBeats awarded it an overall verdict of \"outstanding\" (4.5 out of 5) and wrote: \"For a long time, the IN300 was a benchmark for us in the upper class of integrated amplifiers. The 'Evolution' is one again — partly because output above 250 watts per channel is anything but normal in this class.\" Honestly: if your speakers have never really opened up before, it's often not their fault. Call us on 044 680 22 00 or message us on WhatsApp at \u003ca href=\"https:\/\/wa.me\/41765342200\"\u003e076 534 22 00\u003c\/a\u003e — we at HD Zürisee in Wädenswil will take a look at your chain.\u003c\/p\u003e\n\u003ch2\u003eTechnical data\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType: analog stereo integrated amplifier in dual-mono construction\u003c\/li\u003e\n\u003cli\u003eOutput power: 2 × 150 watts at 8 ohms, 2 × 260 watts at 4 ohms\u003c\/li\u003e\n\u003cli\u003ePower stage: MOSFET in triple push-pull, Class A\/B bias current\u003c\/li\u003e\n\u003cli\u003ePower supply: 2 × 440 VA toroidal transformer for the audio stages plus 10 VA for control\u003c\/li\u003e\n\u003cli\u003eSmoothing capacitance: 86,150 µF (12 × 6,800 µF)\u003c\/li\u003e\n\u003cli\u003eAnalog inputs: 5 × line RCA (of which 1 × AUX, switchable to phono card), 1 × balanced XLR, 1 × bypass RCA\u003c\/li\u003e\n\u003cli\u003eDigital inputs: not standard — retrofittable via DA100 or DA200 option card\u003c\/li\u003e\n\u003cli\u003eOutputs: 1 pair speaker terminals, 2 × pre-out RCA, 12V trigger\u003c\/li\u003e\n\u003cli\u003eOutput level: adjustable (volume control on the unit)\u003c\/li\u003e\n\u003cli\u003eHeadphone output: yes, 6.35 mm jack on the front\u003c\/li\u003e\n\u003cli\u003eFrequency response: 5 Hz – 100 kHz\u003c\/li\u003e\n\u003cli\u003eTHD: 0.05% at 1 kHz and 10 watts\u003c\/li\u003e\n\u003cli\u003eSignal-to-noise ratio: 100 dB\u003c\/li\u003e\n\u003cli\u003eInput impedance: 220 kOhm, maximum input level 3.5 Vrms\u003c\/li\u003e\n\u003cli\u003eSlew rate: 2.0 µs\u003c\/li\u003e\n\u003cli\u003ePower consumption: under 0.5 watts standby, 29–700 watts in operation\u003c\/li\u003e\n\u003cli\u003eOption cards: phono P50 (MM) or P100 (MM\/MC), D\/A converter DA100 or DA200\u003c\/li\u003e\n\u003cli\u003eChassis: 8 mm brushed, micro-blasted, and anodised aluminium front\u003c\/li\u003e\n\u003cli\u003eColour: Silver\u003c\/li\u003e\n\u003cli\u003eDimensions (W × H × D): 440 × 103 × 365 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 16 kg\u003c\/li\u003e\n\u003cli\u003eWarranty: 2 years\u003c\/li\u003e\n\u003cli\u003eIncluded: Atoll IN300 Evolution, Atoll universal remote control, power cable, user manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow much power does the Atoll IN300 Evolution have?\u003c\/strong\u003e\u003cbr\u003e2×150 watts at 8 ohms and 2×260 watts at 4 ohms. The triple push-pull MOSFET power stage is fed by two 440 VA toroidal transformers and 86,150 µF of smoothing capacitance. You'll notice these reserves especially with difficult speakers and bass transients.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the Atoll IN300 Evolution have a built-in DAC?\u003c\/strong\u003e\u003cbr\u003eNot as standard. The digital inputs come via the DA100 or DA200 option card, which can be retrofitted at any time. The DA200 brings two coaxial and two optical inputs, USB-B, and a Bluetooth receiver. We'll install it for you.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I connect a turntable to the IN300 Evolution?\u003c\/strong\u003e\u003cbr\u003eYes, with the right phono card. The P50 turns the AUX input into an MM input, and the P100 can also handle MC with switchable termination impedance. Without a card, you'll need an external phono preamp such as the Atoll PH100 or PH200.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the IN300 Evolution have a headphone output?\u003c\/strong\u003e\u003cbr\u003eYes, a 6.35 mm jack on the front. That's more than enough for an evening on headphones. Anyone running very high-impedance or particularly demanding headphones is better off sonically with a dedicated headphone amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy buy the Atoll IN300 Evolution at HD Zürisee?\u003c\/strong\u003e\u003cbr\u003eBecause this amplifier needs speakers that can actually draw on its reserves. We'll tell you honestly which combination is worthwhile, retrofit a phono or DAC card for you, and deliver and install it at your home. Service runs through our own technician.\u003c\/p\u003e\n\u003ch2\u003ePairs well with\u003c\/h2\u003e\n\u003cp\u003eIt wants demanding speakers: \u003ca href=\"\/en\/collections\/standlautsprecher\"\u003efloorstanding speakers\u003c\/a\u003e or larger \u003ca href=\"\/en\/collections\/regallautsprecher\"\u003ebookshelf speakers\u003c\/a\u003e. As a source, a \u003ca href=\"\/en\/collections\/streamer\"\u003estreamer\u003c\/a\u003e, a \u003ca href=\"\/en\/collections\/cd-player\"\u003eCD player\u003c\/a\u003e, or a \u003ca href=\"\/en\/collections\/plattenspieler\"\u003eturntable\u003c\/a\u003e all fit — plus the right \u003ca href=\"\/en\/collections\/kabel\"\u003ecables\u003c\/a\u003e.\u003c\/p\u003e","brand":"Atoll","offers":[{"title":"Default Title","offer_id":53412943102288,"sku":null,"price":2900.0,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0932\/3262\/8048\/files\/atoll-in300-evolution-vollverstaerker-silber-schraegansicht.png?v=1787157809","url":"https:\/\/hdzuerisee.ch\/en\/products\/atollin300evosi","provider":"HD Zürisee AG","version":"1.0","type":"link"}