{"product_id":"spl-phonitor-one","title":"SPL Phonitor One","description":"\u003ch3\u003eThe Design Of The Amplification Stages\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThe Preamplifier Stage\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eTwo Burr-Brown OPA 2134 SoundPlus™ operational amplifiers provide the pre-amplification. These are specially designed for audiophile circuits and are characterized by extremely low noise and minimal distortion of only 0.00008%.\u003cbr\u003e\u003cbr\u003eThanks to a true FET stage, the OPA 2134 achieves a slew rate of 20V\/µs, making it a high-speed operational amplifier. This has an immediate positive effect on the liveliness of the playback.\u003cbr\u003e\u003cbr\u003eIn addition, low capacitance film capacitors are installed in the signal path as bypass capacitors of the coupling capacitors, which ensures a more precise transmission of the high-frequency signal components.\u003cbr\u003e\u003cbr\u003eThe excellent Panasonic ‘Electric Double Layer’ gold electrolytic capacitors are used as coupling capacitors. They offer the highest storage capacity of all capacitor technologies.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eThe Power Amplifier\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThe output stage of the headphone amplifier is designed as a push-pull amplifier in class AB mode. The bipolar transistors share the amplification of the positive and negative half-waves, which produces a higher gain and a higher output voltage than in Class A operation, where only one transistor amplifies both half-waves.\u003cbr\u003e\u003cbr\u003eThe output stage transistors are thermally coupled and thus run particularly coherently, which contributes to a consistent and stable sound image.\u003cbr\u003e\u003cbr\u003eThe power supply has a buffer circuit with low source resistance, ensuring generous current reserves even when operating low-impedance headphones.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eThe Power Supply\u003c\/h3\u003e\n\u003cp\u003eGood sound always starts with the power supply. This is where you lay the foundation for the performance of the entire device.\u003cbr\u003e\u003cbr\u003eAlthough we “only” supply a 12 V plug-in power supply unit, the secondary power supply inside generates a voltage level of +\/-17 Volts for the analog audio sections with which professional levels of up to +22.5 dB can be achieved!\u003cbr\u003e\u003cbr\u003eAn elaborate low-drop operating voltage regulation provides more “juice” and regulates cleanly even when the maximum operation voltage is reached.\u003cbr\u003e\u003cbr\u003eThe Phonitor One delivers full power when used with the included 1.5 A power supply. Only use the 12 V plug-in power supply unit within the scope of delivery. The ON-switch puts the Phonitor One into operation.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eAnalog inputs; 6.35 mm (1\/4\") TRS Jack (balanced), RCA\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInput gain (max.):\u003c\/strong\u003e \u003cspan\u003e+22.5\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003edBu\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInput impedance Line In 2 (balanced):\u003c\/strong\u003e \u003cspan\u003e20\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003ekΩ\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCommon mode rejection:\u003c\/strong\u003e \u003cspan\u003e\u0026lt; 60\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003edB\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInput impedance Line In 1 (unbalanced):\u003c\/strong\u003e \u003cspan\u003e47\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003ekΩ\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eHeadphones Output; 6.35 mm (1\/4\") TRS Jack\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e \u003cspan\u003eTip = Left, Ring = Right, Sleeve = GND\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSource impedance: \u003c\/strong\u003e\u003cspan\u003e20\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003eΩ\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFrequency range (-3 dB):\u003c\/strong\u003e \u003cspan\u003e10 Hz - 200\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003ekHz\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eNoise (A-weighted, 600 Ω):\u003c\/strong\u003e \u003cspan\u003e-99\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003edBu\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTHD + N (0 dBu, 10 Hz – 22 kHz, 600 Ω):\u003c\/strong\u003e \u003cspan\u003e0.002\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTHD + N (0 dBu, 10 Hz – 22 kHz, 32 Ω): \u003c\/strong\u003e\u003cspan\u003e0.013\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMax output power (600 Ω):\u003c\/strong\u003e \u003cspan\u003e2 x 190\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003emW\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMax output power (250 Ω):\u003c\/strong\u003e \u003cspan\u003e2 x 330\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003emW\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMax output power (47 Ω):\u003c\/strong\u003e \u003cspan\u003e2 x 400\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003emW\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFade-out attenuation (600 Ω):\u003c\/strong\u003e \u003cspan\u003e-99\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003edB\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCrosstalk (1 kHz, 600 Ω): \u003c\/strong\u003e\u003cspan\u003e-75\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003edB\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eInternal Power Supply\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOperating voltage for analog audio:\u003c\/strong\u003e \u003cspan\u003e+\/- 17\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003eV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOperating voltage for headphone amplifier:\u003c\/strong\u003e \u003cspan\u003e+\/- 19\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003eV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOperating voltage for relays:\u003c\/strong\u003e \u003cspan\u003e+12\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003eV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eExternal Power Supply\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eAC\/DC switching adaptor:\u003c\/strong\u003e \u003cspan\u003eMean Well GE18\/12-SC\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDC plug:\u003c\/strong\u003e \u003cspan\u003e(+) pin 2.1mm; (-) outside ring 5.5mm\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInput: \u003c\/strong\u003e\u003cspan\u003e100 - 240 V AC; 50 - 60 Hz; 0.7\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003eA\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e \u003cspan\u003e12 V DC; 1.5\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003eA\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eDimensions \u0026amp; Weight\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eW x H x D:\u003c\/strong\u003e \u003cspan\u003e210 x 49.6 x 220\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003emm \/ \u003c\/span\u003e\u003cspan\u003e8.23 x 1.95 x 8.66\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003einch\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eUnit weight: \u003c\/strong\u003e\u003cspan\u003e1.40\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003ekg \/ \u003c\/span\u003e\u003cspan\u003e3.09\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003elbs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SPL Audio","offers":[{"title":"Default Title","offer_id":50962434621695,"sku":null,"price":10150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/1023\/7183\/files\/SPLPhonitorOneFront.png?v=1794177172","url":"https:\/\/maxvanta.shop\/products\/spl-phonitor-one","provider":"Clearbrook Goods","version":"1.0","type":"link"}