{"product_id":"atollph100si","title":"Atoll PH100 Phono Preamplifier MM\/MC, Silver","description":"\u003cp\u003eThe Atoll PH100 is an external phono preamplifier for MM and MC cartridges, built fully balanced and without operational amplifiers.\u003c\/p\u003e\n\u003cp\u003eIt costs less than many cartridges and still comes with two transformers, four regulated power supplies, and a steel chassis. This is the kind of device where you ask yourself where the catch is – and find none.\u003c\/p\u003e\n\u003ch2\u003eWhy the PH100?\u003c\/h2\u003e\n\u003cp\u003eBecause it puts effort exactly where it really matters for the phono signal. The circuit is fully balanced and discretely built, with no operational amplifiers in the signal path. Two low-noise linear transformers of 3.2 VA each supply the channels separately, backed by 11,280 µF of filter capacitance. And you set impedance and capacitance separately for left and right – something considerably more expensive devices don't offer.\u003c\/p\u003e\n\u003ch2\u003eWhat you hear\u003c\/h2\u003e\n\u003cp\u003eColour and dynamics without nervousness. The bass has contour rather than bulk, voices stay full-bodied, and the noise floor recedes far enough that quiet passages breathe again. The frequency response stays within 0.1 dB across the entire audible range – so the RIAA equalisation is spot on.\u003c\/p\u003e\n\u003ch3\u003eWho is the PH100 suited for?\u003c\/h3\u003e\n\u003cp\u003eFor anyone who wants to connect a turntable to an amplifier with no phono input – and for anyone who has outgrown a built-in budget phono stage. \u003cstrong\u003eIn plain terms:\u003c\/strong\u003e it reaches its limits with very quiet low-output MC cartridges; there the PH200 is worth a look. There's no headphone output, and the level is fixed. And anyone running only MM could also check the more affordable P50 plug-in card on an Atoll amplifier.\u003c\/p\u003e\n\u003ch2\u003eOur verdict\u003c\/h2\u003e\n\u003cp\u003eThis is one of the most honest recommendations in the whole range. stereoplay awarded 73 points in issue 2\/2020 with an \"outstanding\" price-performance verdict and wrote: \"The PH 100 plays with rich colour, dynamic, without a hint of nervousness, and with a great bass that only does what it should.\" The conclusion ended with: \"Here's a buying recommendation, and a crystal-clear one.\" If you're unsure whether it fits your system, tell us what you're running: 044 680 22 00 or WhatsApp \u003ca href=\"https:\/\/wa.me\/41765342200\"\u003e076 534 22 00\u003c\/a\u003e, HD Zürisee in Wädenswil.\u003c\/p\u003e\n\u003ch2\u003eTechnical data\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType: external phono preamplifier for MM and MC (high and low output)\u003c\/li\u003e\n\u003cli\u003eGain: MM 40 dB, MC high-output 47 dB, MC low-output 60 dB\u003c\/li\u003e\n\u003cli\u003eInput impedance: switchable 47 kOhm or 100 kOhm, separate for left and right\u003c\/li\u003e\n\u003cli\u003eInput capacitance: switchable 100 pF or none\u003c\/li\u003e\n\u003cli\u003eInput sensitivity: 1.5 mV\u003c\/li\u003e\n\u003cli\u003eCircuit: fully balanced, discrete components, no operational amplifiers, steel chassis\u003c\/li\u003e\n\u003cli\u003eInputs: 1 × RCA pair phono with ground terminal\u003c\/li\u003e\n\u003cli\u003eOutputs: 1 × RCA pair line\u003c\/li\u003e\n\u003cli\u003eOutput level: fixed, determined by the gain setting – no volume control\u003c\/li\u003e\n\u003cli\u003eHeadphone output: not present\u003c\/li\u003e\n\u003cli\u003ePower supply: 2 × 3.2 VA low-noise linear transformers, 4 regulated power supplies\u003c\/li\u003e\n\u003cli\u003eFilter capacitance: 11,280 µF\u003c\/li\u003e\n\u003cli\u003eFrequency response: 20 Hz – 20 kHz, deviation ±0.1 dB\u003c\/li\u003e\n\u003cli\u003eDistortion: 0.05%\u003c\/li\u003e\n\u003cli\u003eSignal-to-noise ratio: 80 dB at 1 kHz\u003c\/li\u003e\n\u003cli\u003eCrosstalk: below −85 dB at 1 kHz\u003c\/li\u003e\n\u003cli\u003ePower consumption: 4 watts active, 0 watts in sleep mode\u003c\/li\u003e\n\u003cli\u003eChassis: brushed aluminium front\u003c\/li\u003e\n\u003cli\u003eColour: Silver\u003c\/li\u003e\n\u003cli\u003eDimensions (W × H × D): 320 × 63 × 210 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 2 kg\u003c\/li\u003e\n\u003cli\u003eWarranty: 2 years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhich cartridges suit the Atoll PH100?\u003c\/strong\u003e\u003cbr\u003eMM cartridges with 40 dB gain, high-output MC cartridges with 47 dB, and low-output MC cartridges with 60 dB. Very quiet low-output MCs are the only group where it reaches its limits – we'll tell you whether yours belongs there.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I adjust the input impedance on the PH100?\u003c\/strong\u003e\u003cbr\u003eYes. You choose between 47 and 100 kiloohms, separately for the left and right channel. The input capacitance can also be switched between 100 picofarads and no capacitance. That lets you match it exactly to your cartridge.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's special about the PH100's circuit?\u003c\/strong\u003e\u003cbr\u003eIt's fully balanced and built entirely from discrete components – with no operational amplifiers. Add to that two low-noise linear transformers, four regulated power supplies, 11,280 µF of filter capacitance, and a steel chassis. In this price class, that's an unusual amount of effort.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the Atoll PH100 have a headphone output?\u003c\/strong\u003e\u003cbr\u003eNo. The PH100 is a pure phono stage; its output level is fixed and determined by the gain setting. It belongs on a line input of your integrated amplifier or preamp, not directly on a power amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy buy the Atoll PH100 at HD Zürisee?\u003c\/strong\u003e\u003cbr\u003eBecause a phono stage only sounds good once gain, impedance, and capacitance match the cartridge. We set that up with you, check the grounding against hum, and take care of delivery, installation, and service with our own technician.\u003c\/p\u003e\n\u003ch2\u003eGoes well with\u003c\/h2\u003e\n\u003cp\u003eAhead of it belongs a \u003ca href=\"\/en\/collections\/plattenspieler\"\u003eturntable\u003c\/a\u003e with a matching \u003ca href=\"\/en\/collections\/tonabnehmer\"\u003ecartridge\u003c\/a\u003e, behind it an \u003ca href=\"\/en\/collections\/vollverstarker\"\u003eintegrated amplifier\u003c\/a\u003e. A good \u003ca href=\"\/en\/collections\/kabel\"\u003ephono cable\u003c\/a\u003e completes the picture.\u003c\/p\u003e","brand":"Atoll","offers":[{"title":"Default Title","offer_id":53413029413200,"sku":null,"price":490.0,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0932\/3262\/8048\/files\/atoll-ph100-phono-vorverstaerker-silber-schraegansicht.png?v=1787158130","url":"https:\/\/hdzuerisee.ch\/en\/products\/atollph100si","provider":"HD Zürisee AG","version":"1.0","type":"link"}