Product Overview This is an orthodox style pre-mainamplifier composed of full-stage vacuumtubes. Input stage ECC83, ECC82, outputEL34 push-pull and Lundal outputtransformer with UL connection make31W+31W output power.Amplifier uses the 22mm thick solid maplewood frame and 4mm top solid aluminiumplate, thus the body structure is perfectlyrigid and no deflection. The heavyweighttransformer and sensitive vacuum tubeparts are supported by this body toreproduce the substantial mid-lowfrequencies and delicate high frequencies.This is designed and manufacturedcarefully hand crafted so that it can not onlymeet the needs of the modern digital high resolution era, but also has sufficientfunctions and performance for analogplayback. This can be used for many years tocome as The Tube Amplifier that will remainunchanged for decades to come. FeatureAs a basic pre-main amplifier, it is equippedwith 4 RCA line inputs and volume as astandard model. Three types of option areavailable, 1: XLR input x1 + RCA x3, 2:MMphono + 3 RCA, 3: an RCA/XLR input as apower amplifier. The backside panel can bereplaced according to each option, so you canchoose in advance or change it later.The resistors parts are Vishay, PRP andJapanese TAKUMAN, the film capacitors areWIMA in Germany, and the electrolyticcapacitors are TDK-EPCOS. We pay attentionabout the quality and reliability of these parts.The power transformer and choketransformer are made in Japan customizedfor Aurorasound, the rectifier diode is ROHMsilicon carbide, which is the lowest noise andhigh voltage capability up to date. Variousterminals are also carefully selected withthick wall gold plating. The EL34 has a self bias operation system that is easy tomaintenance, so can be replaced to otherbrand EL34h without bias readjustment. Specifications Input: Standard : RCA LINE x4,Option 1 : Phono(MM) x1 、RCA LINEx3Option 2 : XLR/RCA x1, No volume, no selector SWGain, Input sensitivity: 31dB, 440ｍVInput impedance: 25kΩOutput: 31W +31W @8ohmFrequency response: 10Hz – 30kHz, -3dBTHD+N: 0.1% 1kHz 2SNR: 98dB A-weightedAC power voltage: Europe/Asia model 240V, 230V, USA model 120V, Power consumption 200WSize, Weight: W440 x D290 xH228mm without knobs/terminals 、 20kg
