CHASSIS: Zinc plated 18 gauge cold rolled steel.   Top and bottom are 18 gauge cold rolled steel,   brass plaque logo on front cover.   Black wrinkle powder coat on top, bottom and sides.   Machined aluminum feet with rubber inserts. OUTPUT TRANSFORMERS: Custom manufactured for Moth Audio Corporation. User selectable: 2,4,8 & 16 Ohms. TUBES: Output optional. One 5AR4 Rectifier Tube "Sovtek" Pair 6AN4 LINE CORD: 16 gauge, 3 conductor IEC cord. POWER OUTPUT: 5 watts w/Sovtek 2A3's, 5% THD @ 1kHz. TOTAL HARMONIC DISTORTION: Less than 1% 40 - 20 kHz @ 1 watt. POWER SUPPLY: Is a low-flux ripple design using EL power transformer and inductor. FREQUENCY RESPONSE: (-3dB points at 1 watt) 18Hz - 40 kHz. INPUT SENSITIVITY: 300 mV for 1 watt out INPUT IMPEDANCE: 100 K ohms. OUTPUT: 2,4,8 & 16 ohms. User select. CARDAS: Speaker jacks. Hand wired point to point for all signal circuits. OVERALL NEGATIVE FEEDBACK: None HUM & NOISE: .5 mV full bandwidth. TEST MEASUREMENTS: Made with Sovtek 2A3 output tubes. POWER REQUIREMENTS: 110 - 125 VAC 60Hz (210 - 250 VAC 50Hz) 150 Watts DIMENSIONS: 8 1/4" H x 8 1/4" W x 17" L WEIGHT: 37 Lbs. RECOMMENDED SPEAKER SENSITIVITY : 94 dB or better. WARRANTY: All components carry a 3 year parts and labor warranty. Tubes carry the manufacturers' warranties. Shipping and handling is not included. * With Sovtek 2A3 tubes, 2 watts with 45 tubes.