CHASSIS: Zinc plated 18 gauge cold rolled steel.   Top and bottom are 18 gauge cold rolled steel,   brass plaque logo on top plate.   The chassis is satin Iron Glimmer powder coat.   Black wrinkle powder coat on top and bottom.   Machined aluminum feet with rubber inserts.   Glass port holes are Pyrex glass with machined   aluminum rings. OUTPUT TRANSFORMERS: Custom manufactured for Moth Audio Corporation. User selectable: 2,4,8 & 16 Ohms. TUBES: Output optional. One 5AR4 Rectifier Tube "Sino" Pair 6SL7 "Sovtek" LINE CORD: 16 gauge, 3 conductor IEC cord. VOLUME CONTROL: Alps potentiometer. SELECTOR SWITCH: Three input with coin silver contacts. POWER OUTPUT: 3 watts, 5% THD @ 1kHz. TOTAL HARMONIC DISTORTION: Less than 1% 40 - 20 kHz @ 1 watt. POWER SUPPLY: Is a low-flux leakage design using R.C.L.C.R.C. design. FREQUENCY RESPONSE: (-3dB points at 1 watt) 5Hz - 32 kHz. INPUT SENSITIVITY: 500 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: .15 mV full bandwidth. TEST MEASUREMENTS: Made with KR2A3 output tubes. POWER REQUIREMENTS: 110 - 125 VAC 60Hz (210 - 250 VAC 50Hz) 75 Watts DIMENSIONS: 4" H x 14 1/4" W x 15 ½" L WEIGHT: 40 Lbs. HEADPHONE RECOMMENDATIONS: Sennheiser HD600, RECOMMENDED SPEAKER SENSITIVITY : 96 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.