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Sound Sevilla Import


Preamplificador de linea a válvulas. IVA NO INCLUIDO


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L-3000 Immerse yourself in the original recorded space. The L-3000 is a single gain stage, transformer coupled, remote controlled line stage preamplifier. It offers world class, holographic soundstaging combined with incredible resolution, clarity, micro-dynamics, drive. Instrument and vocal tone and timbre are lifelike; placement of insturments and bodies in three dimensions startling, life-size, and addictive. The L-3000 has no voice of its own. It is silent, except for the music emanating from the blackest of backgrounds. The outstanding sonic quality is matched by the simple elegance, flexibility and ergonomic funtionality of the casework and connection options. When it was first introduced, the L-3000 set a new standard for absolute high end quality at a reasonable cost. Few preamplifiers can compete. The L-3000 is, simply, a revelation. The L-3000 is Allnic Audio??s best line stage preamplifier. Like all Allnic Audio products, it uses Permalloy (Iron and nickel alloy) for its transformer cores. Allnic is grateful to Mr. G.W. Elmen of We stern Electric for inventing Permalloy for transformer core use, and in so doing, providing an enormous service to recorded music listeners everywhere. The L-3000 has the following features: ? Single gain stage. A single gain stage circuit uses only one tube for amplification (??gain?). This reproduces a purer, more detailed, more spacious and more dynamic sound than multi gain stages. ? Line output transformer coupling. The L-3000 is ??transformer coupled?. In tube amp circuitry, there are two coupling methods; one is capacitor coupling and the other is transformer coupling. Capacitor coupling is the traditional, low cost method. It is somewhat stable but transfers only voltage, not wattage (i.e., not real energy). With transformer coupling, about 90% of real wattage is transferred (there is still a transformer loss of about10% of wattage??voltage is not affected). ? Transformer coupling is superior to capacitor coupling. However, all the advantages of transformer coupling depend on the quality of the transformer and on the choice of tubes. Allnic Audio manufactures its own transformers and uses what it views to be the best core material, Permalloy. Allnic Audio??s unprecedented, wide (16Hz ~ 75kHz,-3db), low distortional, and ultra-flexible (up to 50kHz square wave response) output transformer helps Allnic Audio to realize the ideal transformer coupled preamplifier. Of course, gain tubes are also carefully selected for three critical factors for function with the Permalloy output transformers: high gm, low internal resistance and high mu. ? Constant and low output impedance. One of the benefits of transformer coupling is that it facilitates constant low output impedance. Low output impedance is critical to the design of a good preamplifier. The L-3000 has a 150ohm (150Ω) constant output impedance at all frequencies. In capacitor coupling (C-R coupling), a ??cathode follower circuit? is usually used to lower output impedance. Unfortunately, this method of lowering output impedance is accompanied by high distortion and has an ??L? shaped output impedance curve. Please compare the two graphs below, especially for low frequency response. ? Advanced tube technology voltage regulation. For quieter and more dynamic operation, the L-3000 has an ultra high speed automatic voltage regulation circuit, utilizing vacuum tubes. This also protects the amplifying tubes from change in the AC line supply and copes with any abrupt, internal current demand. ? New vacuum tube damping technology. Allnic Audio??s patented ??Absorb GEL tube damper? technology prevents harmful vibrations from reaching the signal / gain tubes and, therefore, prevents microphonic noise propagation in the tubes. The Allnic Audio Absorb Gel damper technology effectively solves a problem that plagues most tube amplification systems. Provided other tube components do not introduce microphonic noise into your system, with the Absorb Gel damping system, you will enjoy a degree of transparent sound that will surprise and please you. ? Precision attenuator volume control. The L-3000 does not employ a digital IC volume control or a low-cost carbon film volume control with a motor. Allnic Audio has developed a precision oil clutched motorized attenuator; the L-3000 has no (± 0db) channel unbalance at any volume level. ? Pure Class A operation ? Pure balanced operation ? No negative feedback design Key features of the Allnic Audio L-3000 line amplifier ? Single tube gain stage ? Transformer coupling ? Constant and low (150 OHM) output impedance at all frequencies ? all NOS tubes ? Easy to read tube monitor meters ? Zero negative feedback ? Precision oil clutched motorized attenuator, with zero channel imbalance at any volume ? Ultra high speed, automatic, vacuum tube voltage regulation ? Pure Class A operation ? Pure balanced operation ? Phase control switch ? 3 RCA and 2 XLR inputs ? 3 outputs: 1 RCA, 2 XLR (1 is record out) ? Remote control Specification ? Outputs: Balanced ? 1 pair Unbalanced ? 1 pair ? Input Impedance: Unbalanced 10kΩ Balanced 20kΩ ? Frequency Range: 20Hz ~ 20kHz (FLAT) 16Hz ~ 75kHz (-3dB) ? Voltage Gain: +20dB ? THD (1kHz): Output 0.3V, 0.06% Output 1.0V, 0.15% ? S/N Ratio: -90dB (CCIR, 1kHz) ? Maximum Output: 15V RMS (Non-clipping) ? Output Impedance: 150Ω Constant ? Power Consumption: 30W at 110/120V / 60 Hz ? Tubes: E810F (or D3a) ? 2 (gain stage, left and right channels??there are no equivalents to these tubes) 7233 (no equivalent) ? 2(Voltage Regulator) 6485 (similar to 6AH6, 6AH6WA, 6AH6S, CV2521) ? 2 (Voltage Error Detector) ? Fuse: 2A 250V ? Dimensions: 430mm (16.9291 inches)(W) 350mm (11.811 inches)(D) 173mm (4.72441 inches)(H) ? Weight: 16 kg (35.3 lbs) unpacked. Packed shipping weight in original shipping material is 20kg. (44.1 lbs) L-3000 Dagogo review L-3000 Audiobeat review L-3000 Audio(S.Korea??s magazine) review L-3000 Fullrange(S.Korea??s webzine) review