this is the full spec sheet for the Manley Neo-Classic 500 mono blocks. some of which I do not understand.
- LL-TUBE monoblock design 10 x KT90EH Electro-Harmonix Russian output tubes
- High current double 12BH7EH driver stage
- Tungsol 12AT7 large plate input tube
- BALANCED & UNBALANCED inputs
- MUTE switch
- TRIODE / Ultra-Linear switching
- SOFT-START/ EVER-WARM standby mode
- MANLEY Precision output transformer
- Factory set for 5 Ohms nominal
- Front panel bias measurement and adjust (hiding under the black insert)
- Large filter / reservoir capacitors 3800uF x 2
- Angled rear of chassis provides for easy connections
- WBT binding posts
- Input sensitivity: 1V
- Gain: 32dB tetrode; 30dB in triode
- Input Impedance RCA: 116 kOhm @ 1KHz
- Input Impedance XLR: 270 kOhm @ 1KHz; 20 kOhms @ 20KHz; 38 kOhm @ 20Hz
- Noise Floor: Tetrode: -67dB; Triode -65dB typical
- S/N Ratio: -80 dB
- Dynamic Range: 96dB
- FLAT frequency response: 10 Hz - 30 KHz continuous
- Power Consumption: 30 Watts in "EVER-WARM"
- Full power (tetrode): 500W
- Full power (triode): 275W
- Factory set for 100V, 120V or 220-240VAC operation for original destination country's mains voltage.
- Operating Mains Voltage changeable with power transformer re-wiring and fuse value change.
- Mains Voltage Frequency:
- Dims: W=19", D=13", H=9"
- Shipping weight: 82 lbs. each