{"product_id":"pro-ject-phono-box-rs2","title":"Pro-Ject Phono Box RS2 Phono Pre-Amplifier","description":"\u003cp class=\"sub-h\"\u003eFully balanced, fully discrete phono preamp of the highest class\u003c\/p\u003e\n\u003cdiv class=\"textual\" style=\"max-height: none; height: 1888px;\" data-readmore=\"\" id=\"rmjs-1\"\u003e\n\u003cp\u003e\u003cb\u003eReference class phono preamplifier with unique impedance control\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Phono Box RS2 is the ultimate phono preamplifier of the highest class. It is fully balanced from the input to the output. Electronics are fully discrete, no op-amps are in use and it uses split passive RIAA and DECCA equalization.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiscrete Circuitry\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA discrete circuit is composed of electronic components which are disparate, individual devices, also called discrete components. These can be “passive” components, like resistors, capacitors and inductors, as well as “active” components, which in our case are transistors. The opposite to this would be an integrated circuit, which uses operational amplifiers (Op-Amps) in the signal chain. Countless hours of listening tests and years of experience have shown us that even the very best Op-Amps do not tend to be so neutral, natural, dynamic or vivid. Standard phono pre-amplifiers with integrated circuits have a few tens or hundreds of components, but discrete designs will employ hundreds or thousands of components by comparison. That makes for an extended and more costly design process, but results in the best sound for your money.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFully Balanced\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Phono Box RS2 employs a true fully balanced design principle. Balanced transmissions consist of a hot and a cold (also called + and -) signal. Both the + and – signal chains effectively carry the same musical information. A true balanced amplifier can now extract the final musical information out the +\/- signals and subtract, remove, all noise that could potentially be added along the transmission. In a true, fully balanced amplifier, like the Phono Box RS2, the + and – sections of both the left and right channel are treated individually, which doubles the amplifier sections by 2 as a result.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eSPECIFICATIONS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput impedance:\u003c\/strong\u003e Fixed 47kohms, variable 10 - 1000 ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad capacity switchable:\u003c\/strong\u003e 50, 100, 150, 200, 250, 300, 350, 400 pF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain MM:\u003c\/strong\u003e RCA: 40, 43, 46, 50 dB (+6dB using XLR)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain MC:\u003c\/strong\u003e RCA: 60, 63, 66, 70 dB (+6dB using XLR)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal to noise ratio:\u003c\/strong\u003e MM (40dB): 89dB A-wt (10mV); MC (60dB): 79dB A-wt (1mV)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD:\u003c\/strong\u003e \u0026lt; 0,0015% (MM 40dB, 1kHz); \u0026lt; 0,0024% (MC 60dB, 1kHz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRIAA accuracy:\u003c\/strong\u003e within 0,4dB\/20Hz - 20kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubsonIc:\u003c\/strong\u003e at 20Hz with 18dB\/octave\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e RCA \u0026amp; XLR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e RCA \u0026amp; XLR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e 20V\/3A DC; 110 - 240V, 50\/60Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower consumption:\u003c\/strong\u003e 350mA DC \u0026lt; 1 watt standby\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions W x H x D (with sockets):\u003c\/strong\u003e 206 x 72 x 200 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1600 g without power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Pro-Ject","offers":[{"title":"Black","offer_id":62948126916689,"sku":null,"price":2199.0,"currency_code":"CAD","in_stock":true},{"title":"Silver","offer_id":62948126949457,"sku":null,"price":2199.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1906\/7833\/files\/sqimg_1792090461013.webp?v=1792090539","url":"https:\/\/www.soundroom.ca\/products\/pro-ject-phono-box-rs2","provider":"The Sound Room","version":"1.0","type":"link"}