Little Dot MK III Headphone Amplifier / Pre-AmplifierThe All-New Little Dot MK III succeeds our Little Dot II++ by improving upon it in every possible way. Boasting the highest stability and sound quality yet, the sound-stage realism and imaging precision have improved dramatically over our previous amplifiers, and even at high volumes the Little Dot MK III delivers a smooth, non-fatiguing sound with no hint of dynamic compression or imaging fuzz. Of course the liquid warm mid-range tube lovers expect is here in spades, balancing right in with a dynamic low-end and a sweet, airy treble. Tracking precision with low distortion is provided by an ALPS-16 potentiometer, and Rubycon, German WIMA and ERO capacitors ensure the internal circuitry is built with quality in mind.The Little Dot MK III also adds in user-tweaking options such as two gain switches to delivery maximum compatibility with all your headphones, regardless of impedance or sensitivity. Also available for the very first time in a Little Dot amplifier, is an internal jumper to allow use with a wider range of driver tube-rolling, including the EF92, CV131, WE403A/B, 5654, M8100, CV4010, EF95, 6JI as well as all equivalents to these vacuum tubes!See what people are saying about the Little Dot MKIII:Technical Specifications: SEPP (Singled-ended Push Pull) OTL in Class-A Frequency response: 12 hz 100 Khz (-1dB) THD+N: 0.15% (80 mW @300 ohm) Power Output: 350 mW @ 300/600 ohm 300 mW @ 120 ohm 100 mW @ 32 ohm Power Consumption: 30W (228V x 0.130A) Variable Gain: 3,4,5, or 10x Recommended Load Impedance: 32 ohm 600 ohm Input Impedance: 50K ohms Pre-Amplifier Output Impedance: 600 ohm Pre-Amplifier Gain: 3-10x (also controlled via gain switches) Pre-Amplifier Voltage: 10V RMS Pre-Amplification circuit includes both driver and power tubes Driver Tubes: 2x 5654 Power Tubes: 2x Soviet 6H6n (6H6PI) High quality aluminum chassis Dimensions (Metric): 270mm deep by 175mm wide by 123mm high Dimensions (English): 10.6 inches deep by 6.9 inches wide by 4.8 inches Weight: 3 Kg or 6.6 lbs 1 Year Little Dot Warranty