{"product_id":"teac-ha-507-pure-analog-headphone-amplifier-preamplifier","title":"TEAC HA-507 Pure Analog Headphone Amplifier \/ Preamplifier","description":"\u003ch3\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003ePure Analog Headphone Amplifier \/ Preamplifier to Further Expand the World of Headphone \/ Speaker Listening\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003e \u003cmeta charset=\"utf-8\"\u003e\u003cimg height=\"250\" width=\"500\" src=\"https:\/\/teac-usa.imgix.net\/general\/TEAC-Reference500Series_2000x1000-1.jpg?auto=format\u0026amp;crop=focalpoint\u0026amp;domain=teac-usa.imgix.net\u0026amp;fit=crop\u0026amp;fp-x=0.5\u0026amp;fp-y=0.5\u0026amp;h=750\u0026amp;ixlib=php-3.3.1\u0026amp;q=82\u0026amp;w=1500\" alt=\"TEAC Reference500 Series 2000x1000 1\"\u003e\u003c\/p\u003e\n\u003csection class=\"full content-block  cb-feature image-above\"\u003e\u003c\/section\u003e\n\u003cdiv class=\"product-intro\"\u003e\n\u003cdiv class=\"full-width\"\u003e\n\u003cdiv class=\"pc-dsp\"\u003e\n\u003cdiv class=\"titlepc01\"\u003e\n\u003cp class=\"effectscrollappear effectmoveupward show\"\u003eThe HA-507 is a pure analog headphone amplifier\/preamplifier that incorporates TEAC’s premium audio technologies to achieve the highest level of sound quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"titlepc02\"\u003e\n\u003cp class=\"effectscrollappear effectmoveupward show\"\u003eEquipped with an extensive power supply circuit, the HA-507 has exceptional headphone driving power and an extremely wide frequency response that cannot be imagined from its compact appearance. When connected to the TRDD 5 discrete DAC, model UD-507, you can create a special headphone playback system with separate digital and analog sections.\u003cbr\u003e\u003cbr\u003eThe HA-507 is a no-compromise headphone amplifier that can also be used as a pure analog preamplifier. When paired with a Reference 500 Series power amplifier, you can create a compact yet full-featured separate amplifier system that further enhances the quality of your loudspeaker listening experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"padding-bottom:200px;\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"img-box visible-sm visible-md visible-lg\"\u003e\u003cimg width=\"100%\" alt=\"HA-507\" src=\"https:\/\/teac.jp\/images\/products\/_tmp\/main_img\/teac\/ha-507_main.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"img-box visible-sm visible-md visible-lg\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"col-md-4\"\u003e\n\u003cimg alt=\"HA-507\" src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/ha-507_image_03.jpg\" class=\"img-responsive\"\u003e\n\u003cp align=\"center\"\u003eAs an authentic pure analog\u003cbr\u003eheadphone amplifier\u003c\/p\u003e\n\u003cp align=\"left\"\u003eCombined with your favorite DAC or digital player, you can build a full-fledged headphone listening system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-md-4\"\u003e\n\u003cimg alt=\"HA-507\" src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/ha-507_image_04.jpg\" class=\"img-responsive\"\u003e\n\u003cp align=\"center\"\u003eAs a compact\u003cbr\u003epremium preamplifier\u003c\/p\u003e\n\u003cp align=\"left\"\u003eCombined with the Reference 500 series power amplifier, a compact separate amplifier system with authentic sound quality can be realized.\u003cbr\u003e\u003csmall\u003e* Shown with the AP-505 which has been discontinued. A successor model is scheduled.\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-md-4\"\u003e\n\u003cimg alt=\"HA-507\" src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/ha-507_image_05_e.jpg\" class=\"img-responsive\"\u003e\n\u003cp align=\"center\"\u003e... And,\u003cbr\u003eas a “headphone power amplifier”\u003c\/p\u003e\n\u003cp align=\"left\"\u003eIf you already have a higher quality preamplifier in your speaker system, you can pass through the HA-507's preamplifier and add it as a \"headphone power amplifier\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003csection class=\"sect\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-12 price-list\"\u003e\n\u003csection id=\"block-features\"\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"future_description\"\u003e\n\u003cdiv class=\"col-md-12\"\u003e\n\u003cdiv class=\"block-title\"\u003eFully Balanced\/Dual Mono High Output Headphone Amplifier\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eThe HA-507 employs a high-power analog amplifier circuit with exceptionally wide bandwidth and low distortion characteristics. It features a fully balanced\/dual mono configuration with a total of four amplifier elements (left\/right\/positive\/negative).\u003cbr\u003eOriginally designed to drive full-size speakers, the amplifier element is not only extremely powerful, but also capable of reproducing the texture of music with extreme subtlety. This amplifier element gives the HA-507 an exceptional headphone drive capability of 6,700mW + 6,700mW (32Ω) at balanced output, which can fully drive any headphones, including low-sensitivity, high-impedance ones, with unparalleled musicality.\u003cbr\u003eWhen driving unbalanced headphones, the internal balanced amplifiers are switched to an active-ground configuration. The unbalanced headphone output provides an exceptionally wide soundstage by actively driving the signal ground level to zero voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-dsp\"\u003e\n\u003cdiv class=\"col-sm-10 col-sm-offset-1\"\u003e\u003cimg width=\"100%\" src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/ha-507_output_icon_e_pc.jpg\" class=\"img-responsive\" alt=\"HA-507\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-dsp\"\u003e\n\u003cdiv class=\"titlepc12\"\u003e\n\u003cimg width=\"100%\" src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/ha-507_image_12_pc.jpg\" class=\"img-responsive\" alt=\"HA-507\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/ha-507_image_12_overlay.png\" alt=\"HA-507\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"future_description\"\u003e\n\u003cdiv class=\"col-xs-12\"\u003e\n\u003cdiv class=\"block-title\"\u003eDrives All Types of Headphones to the Maximum\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eTwo balanced outputs (Neutrik XLR 4-pin and 4.4mm Pentaconn) and two unbalanced outputs (6.3mm and 3.5mm) are provided. Gain can be switched in three levels (High\/Mid\/Low) to match the headphones being used.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12\"\u003e\n\u003cdiv class=\"block-title\"\u003eCan Be Used as a Separate Power Amplifier for the Headphones\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eFor the ultimate head-fi who wants a separate pre\/power amplifier system for headphones, the HA-507 can be used as a separate headphone power amplifier by pairing it with high-end external preamplifiers. Preamp pass-through mode can be activated by a switch on the rear panel.\u003cbr\u003eThis feature is also useful for listeners who already own an ultra-high-end preamp for their speaker system and prefer a single preamp configuration for both speaker\/headphone listening.\u003cbr\u003eEven in this preamp pass-through mode, the gain and L\/R balance functions are enabled for ease of use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-dsp\"\u003e\n\u003cdiv class=\"titlepc11\"\u003e\n\u003cimg width=\"100%\" src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/ha-507_image_13_pc.jpg\" class=\"img-responsive\" alt=\"HA-507\"\u003e\n\u003cp\u003eBuilt on TEAC’s Unparalleled Excellence in Audio Design\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp align=\"right\"\u003e\u003csup\u003e* Shown with the AP-505 which has been discontinued. A successor model is scheduled. \u003c\/sup\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"future_description\"\u003e\n\u003cdiv class=\"col-xs-12\"\u003e\n\u003cdiv class=\"block-title\"\u003eFully Balanced \/ Dual Mono Preamplifier\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eWhether for headphones or speakers, the preamplifier is the heart of an audio system and an important component responsible for the overall sound quality of the system. The HA-507 is a premium compact preamplifier that combines TEAC's audio design excellence in a fully balanced\/dual mono configuration to provide an unprecedented high quality listening experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block-title\"\u003e“TEAC-QVCS* Advanced” Volume Control Circuit, Which Achieves Even More Advanced Sound Quality and Precision than the Previous Generation Circuit.\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eWe have newly developed \"TEAC-QVCS* Advanced\", a ladder resistor volume control system with four independent circuits for left\/right, positive\/negative (L+, L-, R+, and R-). This circuitry provides the shortest signal paths to minimize audio signal degradation.　The resistive element inside the volume control, developed using the latest semiconductor process technology, is extremely precise and has achieved even higher sound quality and control precision than the previous generation QVCS. Featuring TEAC-QVCS Advanced, the HA-507 offers smooth volume control in 0.25dB increments, unparalleled channel separation without crosstalk that only dual-mono can provide, and quiet and precise music reproduction created by the precise symmetry of the balanced volume control circuitry.\u003cbr\u003e\u003csmall\u003e* Quad Volume Control System\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cimg width=\"100%\" src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/gallery\/ha-507-s_rear.jpg\" class=\"img-responsive\" alt=\"HA-507\"\u003e\n\u003cdiv class=\"block-title\"\u003eLossless FET Input Switching for a Variety of Analog Devices\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eThe HA-507 has two XLRx2 and two RCAx2 input connectors, allowing you to connect a variety of analog devices to your Reference 500 system. Input switching uses FET switches with no mechanical contacts to enhance signal purity and ensure long life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block-title\"\u003e\"TEAC-HCLD 2\" Circuitry Provides Superior Drive Capability of External Amplifier\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eThe HA-507 is equipped with one XLR and one RCA preamp output. The output buffer amplifier uses the \"TEAC-HCLD (High Current Line Driver) 2\", which is even more focused on high slew rate\/high speed current transfer than the original HCLD, to powerfully drive the connected amplifier + speakers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-dsp\"\u003e\n\u003cdiv class=\"col-sm-10 col-sm-offset-1\"\u003e\u003cimg width=\"100%\" src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/ha-507_hcld2_e_pc.jpg\" class=\"img-responsive\" alt=\"HA-507\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-dsp\"\u003e\n\u003cdiv class=\"titlepc11\"\u003e\n\u003cimg width=\"100%\" src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/ha-507_image_14_pc.jpg\" class=\"img-responsive\" alt=\"HA-507\"\u003e\n\u003cp\u003eHigh Quality Power Supply, the Key to Sound Quality\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"future_description\"\u003e\n\u003cdiv class=\"col-xs-12\"\u003e\n\u003cdiv class=\"block-title\"\u003e18,800μF\/ch Dual Mono Power Supply\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eTo achieve both excellent drive performance and high sound quality, special attention was paid to the power supply design. Two power supply systems, one dedicated to the audio circuits and the other to the control circuits, are completely independent of each other. The large toroidal core power transformer dedicated to the audio circuits has separate left and right windings and couples 18,800μF (4,700μF x 4) capacitors per channel to form a high-capacitance dual mono power supply. It is extremely responsive to changes in the dynamics of the music. No compromises were made in the selection of components, such as high-speed Schottky barrier diodes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block-title\"\u003eDiscrete Regulated Power Supply for Improved Dynamic Range and a Wider Soundstage\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eThe regulated power supply circuit is one of the most important components in improving the sound quality of a headphone amplifier\/preamplifier. It is a completely discrete, low feedback circuit design to provide excellent dynamics and imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-dsp\"\u003e\n\u003cdiv class=\"titlepc13\"\u003e\n\u003cimg width=\"100%\" src=\"https:\/\/teac.jp\/images\/products\/_teac_audio\/ha-507\/ha-507_image_15_pc.jpg\" class=\"img-responsive\" alt=\"HA-507\"\u003e\n\u003cp\u003eAn Ideal Mechanical Design That Combines\u003cbr\u003eSound Quality, Functionality, and Elegance\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"future_description\"\u003e\n\u003cdiv class=\"col-xs-12\"\u003e\n\u003cdiv class=\"block-title\"\u003eForm Follows Function\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eThe HA-507's mechanical, massive, yet sleek exterior is perhaps the most obvious example of \"form follows function\" in industrial design. The A4-sized chassis, which fits on a desktop, is made of aluminum and, although compact, is full of a sense of solidity that quietly asserts the attention to circuit design and sound quality that the HA-507 encompasses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block-title\"\u003eMechanical Design That Prioritizes Sound Quality\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eThe 2.8mm thick aluminum top panel, which gives the chassis a heavy texture, is semi-floating, meaning that it is not screwed down, but sits under its own weight in the slots in the aluminum panels on the left and right sides. The screws used to secure the internal circuit board are also minimized to open up the sound. The use of TEAC's original metal Stressless Foot, which has clearance at the joint between the bottom panel and the foot, results in a rich and natural characteristic of the final sound quality of the HA-507.\u003cbr\u003eThe HA-507 is a high performance, high quality amplifier in a compact size, carefully designed for heat dissipation efficiency without the use of noisy heat exhaust fans.\u003cbr\u003eLarge components such as the top panel grille and internal heat dissipation fins are treated with special medical-grade damping material to reduce frequency peaks and achieve neutral frequency response.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block-title\"\u003eHigh-Precision Feel and Touch for Volume and Knobs\u003c\/div\u003e\n\u003cdiv class=\"block-detail\"\u003e\n\u003cp\u003eThe volume knobs are all crafted from high grade aluminum, carefully designed for a premium feel and touch. All knob shafts are equipped with a special mechanism (patent pending) to prevent off-axis movement and achieve high precision and robust feel. The torque of the volume knob is also finished to give the best feel to your fingers. The traditional motorized volume control with the included remote control is another detail that symbolizes the HA-507's \"pure analog\" concept.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sect\" id=\"block-functional-list\"\u003e\n\u003ch2\u003eFeatures at a glance\u003c\/h2\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"tcj_style\"\u003e\n\u003cspan\u003e Headphone Amplifier section\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eHigh power, wide range, low distortion Class AB amplifier\u003c\/li\u003e\n\u003cli\u003eFully balanced\/dual mono configuration with four amplifier elements originally designed for speaker drive\u003c\/li\u003e\n\u003cli\u003eExceptional headphone drive capability of 6,700mW + 6,700mW\u003cspan\u003e \u003c\/span\u003e\u003csmall\u003e(32Ω)\u003c\/small\u003e\u003cspan\u003e \u003c\/span\u003eat balanced output\u003c\/li\u003e\n\u003cli\u003ePreamp pass-through function for use as a separate power amplifier for headphones\u003c\/li\u003e\n\u003cli\u003eTwo balanced outputs: XLR 4-pin × 1, 4.4mm Pentaconn × 1\u003c\/li\u003e\n\u003cli\u003eUnbalanced outputs: 6.3mm × 1, 3.5mm × 1\u003c\/li\u003e\n\u003cli\u003eSwitchable headphone output gain\u003cspan\u003e \u003c\/span\u003e\u003csmall\u003e(high\/mid\/low)\u003c\/small\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cspan\u003e Preamplifier section\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003ePremium compact preamplifier built on TEAC’s unparalleled excellence in audio design\u003c\/li\u003e\n\u003cli\u003eFully balanced\/dual mono configuration\u003c\/li\u003e\n\u003cli\u003e“TEAC-QVCS Advanced” with new super high precision, ladder resistor network\u003c\/li\u003e\n\u003cli\u003eSmooth, precise volume control in 0.25dB increments\u003c\/li\u003e\n\u003cli\u003eLossless, long life FET input switching system without mechanical contacts\u003c\/li\u003e\n\u003cli\u003e“TEAC-HCLD 2\u003cspan\u003e \u003c\/span\u003e\u003csmall\u003e(High Current Line Driver 2)\u003c\/small\u003e” provides fast and powerful external amplifier drive capability.\u003c\/li\u003e\n\u003cli\u003eInputs: XLR × 2, RCA × 2\u003c\/li\u003e\n\u003cli\u003eOutputs: XLR × 1, RCA × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cspan\u003e Power Supply section\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eTwo independent power supplies\u003cspan\u003e \u003c\/span\u003e\u003csmall\u003e(one for audio circuits and one for control circuits)\u003c\/small\u003e\n\u003c\/li\u003e\n\u003cli\u003eLarge toroidal power transformers with separate left and right windings exclusive for audio circuits\u003c\/li\u003e\n\u003cli\u003e18,800μF per channel dual-mono configuration for dynamic, responsive sound\u003c\/li\u003e\n\u003cli\u003eLow-feedback, discrete power rectification circuitry for excellent dynamics and imaging\u003c\/li\u003e\n\u003cli\u003eHigh-quality power components, high-speed Schottky barrier diodes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cspan\u003e Mechanical Design, Additional Features\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eCompact yet rugged A4-size aluminum chassis suitable for both audio rack and desktop applications\u003c\/li\u003e\n\u003cli\u003eSemi-floating 2.8mm thick aluminum top plate\u003c\/li\u003e\n\u003cli\u003eStressless metal feet with three-point support for precise imaging and natural sound characteristics\u003c\/li\u003e\n\u003cli\u003eFanless, highly efficient heat dissipation design\u003c\/li\u003e\n\u003cli\u003ePreamp pass-through for AV surround systems\u003c\/li\u003e\n\u003cli\u003eTrigger in\/through terminals\u003c\/li\u003e\n\u003cli\u003eHigh grade aluminum knobs with patent-pending mechanism to prevent off-axis shaft movement\u003c\/li\u003e\n\u003cli\u003eRC-1340 dedicated remote control\u003cspan\u003e \u003c\/span\u003e\u003csmall\u003e(AAA × 2)\u003c\/small\u003e, motorized volume control\u003c\/li\u003e\n\u003cli\u003eAvailable in two colors: silver and black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003csmall\u003e* Design and specifications subject to change without notice.\u003c\/small\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" class=\"table table-bordered table-striped spec_table\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\" bgcolor=\"#cccccc\"\u003eBalanced\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003eXLR × 2 pairs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv2\" bgcolor=\"#cccccc\"\u003eInput impedance\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e40kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv2\" bgcolor=\"#cccccc\"\u003eMaximum input signal voltage\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e6Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\" bgcolor=\"#cccccc\"\u003eUnbalanced\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003eRCA × 2 pairs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv2\" bgcolor=\"#cccccc\"\u003eInput impedance\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e20kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv2\" bgcolor=\"#cccccc\"\u003eMaximum input signal voltage\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e3Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv0\" bgcolor=\"#cccccc\"\u003eAnalog audio outputs\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\" bgcolor=\"#cccccc\"\u003eBalanced\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003eXLR × 1 pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv2\" bgcolor=\"#cccccc\"\u003eOutput impedance\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e50Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv2\" bgcolor=\"#cccccc\"\u003eMaximum output voltage\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e7Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\" bgcolor=\"#cccccc\"\u003eUnbalanced\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003eRCA × 1 pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv2\" bgcolor=\"#cccccc\"\u003eOutput impedance\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e100Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv2\" bgcolor=\"#cccccc\"\u003eMaximum output voltage\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e3.5Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv0\" bgcolor=\"#cccccc\"\u003eHeadphone outputs\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\" bgcolor=\"#cccccc\"\u003eBalanced\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e4-pin XLR × 1\u003cbr\u003e4.4mm 5-pole stereo jack (Pentaconn) × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv2\" bgcolor=\"#cccccc\"\u003eRated output\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e6,700mW + 6,700mW (into 32Ω)\u003cbr\u003e4,200mW + 4,200mW (into 100Ω)\u003cbr\u003e1,800mW + 1,800mW (into 300Ω)\u003cbr\u003e950mW + 950mW (into 600Ω)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\" bgcolor=\"#cccccc\"\u003eUnbalanced\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e6.3mm (¼”) stereo jack × 1\u003cbr\u003e3.5mm (\u0026amp;frac1\/8;”) stereo mini jack × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv2\" bgcolor=\"#cccccc\"\u003e定格出力\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e2,300mW + 2,300mW (into 32Ω)\u003cbr\u003e1,200mW + 1,200mW (into 100Ω)\u003cbr\u003e480mW + 480mW (into 300Ω)\u003cbr\u003e250mW + 250mW (into 600Ω)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\" bgcolor=\"#cccccc\"\u003eApplicable load impedance\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e16 to 600Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv0\" bgcolor=\"#cccccc\"\u003eGeneral\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\"\u003ePower supply\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003eAC 100V、50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\"\u003ePower consumption\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e30W (0.3W in standby)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\"\u003eOveall dimensions (W × H × D)\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e290 × 84.5 × 243.9mm \/ 11-½” × 3-⅜” × 9-⅝” (including protrusions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv1\"\u003eWeight\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e4.6kg \/ 10-¼ lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv0\"\u003eIncluded accessories\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003ePower cord, Remote control (RC-1340), AAA Batteries for remote control × 2, feet cushions × 3, Owner's Manual (with warranty)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eAudio performance\u003c\/h2\u003e\n\u003ctable width=\"100%\" class=\"table table-bordered table-striped spec_table\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv0\" bgcolor=\"#cccccc\"\u003eFrequency response\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e10Hz to 150kHz (+1\/–4dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv0\" bgcolor=\"#cccccc\"\u003eTHD +N\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e0.0006％ (1kHz, LPF: 20kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"spec_lv0\" bgcolor=\"#cccccc\"\u003eS\/N ratio\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e110dB (A-weight, 1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003e  \u003c\/span\u003e\u003csmall\u003eMeasurement conditions: Input RCA 2Vrms, Output RCA 2Vrms\u003c\/small\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesign and specification may subject to change without notice.\u003c\/li\u003e\n\u003cli\u003eDRoHS complied\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"TEAC","offers":[{"title":"Black","offer_id":47921408377062,"sku":"TEACHA507B","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":47921408409830,"sku":"TEACHA507S","price":2499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/8407\/2678\/files\/ha-507-s_front.jpg?v=1782417645","url":"https:\/\/bringbackanalog.com\/products\/teac-ha-507-pure-analog-headphone-amplifier-preamplifier","provider":"Bring Back Analog","version":"1.0","type":"link"}