{"product_id":"stax-sr-l300-srm-400s-electrostatic-headphone-and-amplifier-bundle","title":"STAX Bundle set SR-L300 \u0026 SRM-400S Electrostatic Headphone and Amplifier","description":"\u003ch2\u003e\u003cstrong\u003eSTAX - SR-L300\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe first SR-Lambda series was introduced 36 years ago and it has further developed into a new-generation SR-Lambda with its newly designed enclosure - the new SR-L300 advanced Lambda series Earspeaker.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTOP QUALITY SOUND ELEMENT\u003c\/strong\u003e \u003cbr\u003eHand-selected thin-film diaphragm as well as tough stainless fixed electrodes have been employed for the SR-L300. Thus, rich deep bass response, delicate high frequency, and soothing mid-range has been achieved in a balanced manner.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSLIDE TYPE HEADBAND ASSEMBLY\u003c\/strong\u003e \u003cbr\u003eThe headband (ARC) assembly of the SR-L300 is equipped with step-less slider mechanism for head pad height adjustment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNEW LOW CAPACITANCE OFC WIDE CABLE\u003c\/strong\u003e \u003cbr\u003eOFC cable has been employed for the core wires. The entire cable is then arranged in a flat, WIDE format configuration to lower the capacitance between each wire and finished with the most suitable structure to drive the earspeaker.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNEW HIGH-QUALITY SYNTHETIC LEATHER EARPADS\u003c\/strong\u003e: \u003cbr\u003eThe new earpad design is carefully crafted with high-quality synthetic leather for utmost comfort for hours of music enjoyment as well as sound performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSR-L300 SPECIFICATIONS\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType: \u003c\/strong\u003ePush-Pull electrostatic oval sound element, Open-Air type enclosure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response: \u003c\/strong\u003e7 - 41,000Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitance:\u003c\/strong\u003e 110pF (including cable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitivity: \u003c\/strong\u003e101dB \/ 100V r.m.s. 1 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBias Voltage:\u003c\/strong\u003e 580V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft \u0026amp; Right Channel Identification:\u003c\/strong\u003e 'L' and 'R' indicated on the arc assembly, solid line (left) and dotted line (right) on cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEar Pads: \u003c\/strong\u003eHigh-quality synthetic leather\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable: \u003c\/strong\u003eOFC parallel 6-strand, low-capacity wide cable, 2.5m full length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Temperature \u0026amp; Humidity: \u003c\/strong\u003e0 to 35ºC \/ 90% max. without condensation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 11.4oz without cable \/ 15.8oz with cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpecifications and appearance are subject to change for improvement.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eSTAX - SRM-400S\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMiddle-class semiconductor driver unit is renewed.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNew DC amplifier which FET are installed in all stages.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSTAX introduces a new semiconductor driver unit SRM-400S, the successor model of SRM-353X. STAX custom-made low noise DUAL FET is installed on First Stage. And FET is also installed on Last Stage. The characteristics of right FET and left FET are measured strictly. Selected FET are installed as well as SRM-700S. SRM-400S succeeds to the design and the manufacturing method of the high end model SRM-700S, the amplifier which FET are installed in all stages.\u003c\/p\u003e\n\u003cp\u003eIn addition to the conventional power transformer for the high voltage circuit, the newly designed power transformer with the winding for the low voltage circuit is installed in SRM-400S. The low voltage winding enables to improve the power efficiency and achieve further power saving and better sound quality than the conventional driver units such as SRM-353X.\u003c\/p\u003e\n\u003cp\u003eThe new chassis which is more rigid than the conventional model is installed. The chassis has a hybrid structure using a lot of non-magnetic aluminum and further reduces the effect of the environmental noise factors such as vibrations. The inputs are RCA and XLR, the mutual exclusion inputs. The custom made concentric dual volume knob which is common to STAX products and RCA PARALLEL OUT functions are installed same as the conventional driver units. All electric components are strictly selected considering the environment. Also the sound quality and the performance is improved. The complete DC amplifier configuration that the signal circuit includes no coupling condensers is one of the biggest traditional features.\u003c\/p\u003e\n\u003cp\u003eSRM-400S takes over the high resolution sound which is unique to the semiconductor circuit and dynamic low range sound reproduction. Simultaneously, the good sound balance is further pursued than SRM-353X. From the low range to the high range, the sound of each range is well harmonized. Not only for the combination with the advanced lambda series, SRM-400S is also ideal for the upgrading from the entry level SRS-3100. This is the promising new model which covers from beginners to intermediates among the renewed driver unit lineup.\u003c\/p\u003e\n\u003ch3\u003eSRM-400S Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: All-stage FET configuration DC amplification driver unit\u003c\/li\u003e\n\u003cli\u003eFrequency response: DC – 90kHz (with one SR-L500 MK2)\u003c\/li\u003e\n\u003cli\u003eGain: 60dB\u003c\/li\u003e\n\u003cli\u003eHarmonic distortion: 0.01% or less (1kHz\/100Vrms output)\u003c\/li\u003e\n\u003cli\u003eInput impedance: 50kΩ (RCA), 50kΩx 2 (XLR)\u003c\/li\u003e\n\u003cli\u003eMaximum output voltage: 400Vrms (1kHz)\u003c\/li\u003e\n\u003cli\u003eBias voltage: DC 580V\u003c\/li\u003e\n\u003cli\u003eOperating temperature \/ humidity: 0 to 35 degrees C \/ less than 90% (non condensing)\u003c\/li\u003e\n\u003cli\u003eInput terminal: RCA x 1, XLR x 1(mutual exclusion input)\u003c\/li\u003e\n\u003cli\u003eOutput: RCA parallel output terminal\u003c\/li\u003e\n\u003cli\u003ePower consumption: 30W\u003c\/li\u003e\n\u003cli\u003ePower Supply: 120 V \/ 50-60Hz\u003c\/li\u003e\n\u003cli\u003eDimension: 195 (W) x 102 (H) x 376 (D) mm (maximum protruding portion included)\u003c\/li\u003e\n\u003cli\u003eWeight: 3.4kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STAX","offers":[{"title":"Default Title","offer_id":44208258449641,"sku":"SR-L300 + SRM-400S","price":1580.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/products\/srm400s_L300.jpg?v=1762463500","url":"https:\/\/audio46.mom\/products\/stax-sr-l300-srm-400s-electrostatic-headphone-and-amplifier-bundle","provider":"Audio46 Headphone Store","version":"1.0","type":"link"}