{"product_id":"ibasso-amp7-discrete-single-ended-3-5mm-amplifier-card-for-dx220","title":"iBasso AMP7 | Discrete Single Ended 3.5mm Amplifier Card for DX220\/DX240","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eFrom iBasso\u003cbr\u003e\u003c\/strong\u003e\u003cspan\u003e\u003cspan\u003eThe AMP7 is a discrete single ended 3.5mm amplifier card for the DX220 DAP. It features:\u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e+\/-8V high voltage swing. This significantly improves dynamics and headroom, resulting in a more accurate sound that is true to the recording.\u003c\/li\u003e\n\u003cli\u003eAMP7 is a completely new discrete circuit design that is based on iBasso's four channel architecture and features both a high voltage and current output. High current output is very useful for low impedance multi-drivers in ear monitors.\u003c\/li\u003e\n\u003cli\u003eLow VCE transistors are utilized and are manually sorted and paired, providing better consistency and linearity. The low VCE also expands the linearity range.\u003c\/li\u003e\n\u003cli\u003eThe transistors used on the buffer stage have a 2700mAh output current rating, which allows the AMP7 to drive IEMs and headphones that require high current with ease.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen using OPAMPs to develop an amplifier, it is almost impossible to achieve high voltage output and high current output, especially, on a portable device. Some engineers have used the TPA6120 on the buffer stage to achieve 750mA output current. However, it has 10ohm output impedance, which isn’t ideal for low impedance IEMs or headphones. The AMP7 uses discrete components which are usually on desktop amplifiers, but that makes the development process is much more difficult. After a long development period and with our final design, we present the AMP7 card that has both high voltage and high current output and at the same time maintains low output impedance with extremely good measurements. AMP7 compliments the premium performance of the DX150 and the DX200, giving you even more choices when playing the music you enjoy.\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ch5\u003e\u003cspan\u003eSpecs\u003c\/span\u003e\u003c\/h5\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ctable class=\"table_o418fscimQZEg1oshu4aX\" data-selenium=\"specsItemGroupTable\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL firstSpecWhenNoGroupName_2L9ob5rxYHNpmiwoNrY0FE\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eVoltage\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v firstSpecWhenNoGroupName_2L9ob5rxYHNpmiwoNrY0FE\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eHigh Voltage Swing: +\/-8 V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eOutput Current\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003e2700 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eHeadphone Out\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\u003cspan\u003eOutput Voltage: 3.2 Vrms\u003cbr\u003eFrequency Response: 10 Hz to 45 kHz +\/- 0.3 dB\u003cbr\u003eS\/N: 122 dB\u003cbr\u003eTHD+N (no load at 1.8 Vrms): 0.00023%, -113 dB\u003cbr\u003eTHD+N (300 Ohms at 1.8 Vrms): 0.00023%, -113 dB\u003cbr\u003eOutput Impedance: 0.3 Ohm\u003cbr\u003eDNR: 122 dB\u003cbr\u003eCrosstalk: -106 dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_3u9fnESIQrtuEu6ye_zM4k\" data-selenium=\"specsItemGroupTableRow\"\u003e\n\u003ctd class=\"label_3bLwbW8ibvYc5tUwpKVQsL\" data-selenium=\"specsItemGroupTableColumnLabel\"\u003eLine Out\u003c\/td\u003e\n\u003ctd class=\"value_11Av1yGkVYn9TX48mQeu9v\" data-selenium=\"specsItemGroupTableColumnValue\"\u003e\n\u003cp\u003e\u003cspan\u003eOutput Voltage: 3.2 Vrms\u003cbr\u003eFrequency Response: 10 Hz to 45 kHz +\/- 0.3 dB\u003cbr\u003eS\/N: 117 dB\u003cbr\u003eTHD+N (no load at 1.8 Vrms): 0.00023%, -113 dB\u003cbr\u003eDNR: 117 dB\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ch5\u003e\u003cspan\u003eIn the Box\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eiBasso AMP7 Discrete 3.5mm Single Ended Amplifier Card\u003c\/li\u003e\n\u003cli\u003eWarranty Card\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iBasso","offers":[{"title":"Default Title","offer_id":32131020226635,"sku":"AMP7","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/products\/iBasso-AMP7-Discrete-Single-Ended-3_5mm-Amplifier-Card-for-DX220DX240.jpg?v=1653338323","url":"https:\/\/bloomaudio.mom\/products\/ibasso-amp7-discrete-single-ended-3-5mm-amplifier-card-for-dx220","provider":"Bloom Audio","version":"1.0","type":"link"}