Manley Labs writes: “250 Watts and dressed to kill in a sleek stealth finish. The Neo-Classic 250 delivers instant energy on tap to make your music POP. “
- ALL-TUBE monoblock design: uses 10 x Tungsol EL34B output tubes
- Driver Stage: High current double 12BH7EH (x2)
- Input Tube: 12AT7
- BALANCED & UNBALANCED inputs: RCA and XLR jacks (switchable)
- MANLEY IRON® Input Transformer for the XLR: 2:1 ratio designed and wound at Manley Labs
- MUTE switch: on front panel
- TRIODE / Ultra-Linear output mode switching: on front panel
- SOFT-START turn on mode: minimizes in-rush current by first powering up amplifier to half voltages
- EVER-WARM mode: for standby keeps tubes warmed up at half voltages
- MANLEY IRON® Output Transformer: designed and wound at Manley Labs
- Front panel bias measurement and adjust: Concealed under the black oval insert
- Output Tube Standing Current: 30mA
- Set Bias for: 300mVDC measured across each bias tip jack to ground
- Large filter / reservoir capacitors: 3800uF x 2
- Angled rear of chassis: provides for easy connections
- WBT binding posts: CE compliant for European models
- Input Sensitivity RCA: Triode = 1.17 V; UL = 1.38 V for full power into 5 Ohms
- Input Sensitivity XLR: Triode = 2.56 V; Tetrode = 3.05 V for full power into 5 Ohms
- Input Sensitivity RCA Triode: 98.3 mV; UL = 86.6 mV for 1 Watt into 5 Ohms
- Input Sensitivity XLR Triode: 227 mV; UL = 200 mV for 1 Watt into 5 Ohms
- Gain RCA: Triode = 27.2 dB; UL = 28.3 dB
- Gain XLR: Triode = 21.2 dB; UL = 22.3 dB
- Input Impedance RCA: 130 kOhm @ 1KHz
- Input Impedance XLR: 278 kOhm @ 1KHz; 20 kOhms @ 20KHz; 28 kOhm @ 20Hz
- Actual Output Impedance Triode: 0.610 Ohm
- Actual Output Impedance Tetrode: 0.698 Ohm
- Optimum Speaker Load: 5 Ohms
- Damping Factor Triode: 13.1
- Damping Factor Tetrode: 11.5
- S/N Ratio: 94 dB A-WGT at 1 Watt into 5 Ohms
- Dynamic Range: 114 dB A-WGT
- Noise Floor: -84 dB or 50 µV A-WGT 1 Watt into 5 Ohms w/Shorted Input
- Frequency response -1 dB: Triode = 10 Hz – 30 kHz
- Full Power frequency response -1 dB: Triode = 10 Hz – 33 kHz; UL = 10 Hz – 20 kHz to reach 1.5% THD into 5 Ohms
- Distortion: Triode = 0.052%; UL = 0.37% BW 10 Hz – 500 kHz at 1 Watt into 5 Ohms
- Full Power Triode: 140 W @ 1.5% THD into 5 Ohms
- Full Power UL: 250 W @ 1.5% THD into 5 Ohms
- Power Consumption: 40 Watts in “EVER-WARM” mode
- Power Consumption Idle: 335 Watts
- Maximum Power Consumption: 710 Watts at full power
- Operating Mains Voltage: Factory set for 100V, 120V or 220-240VAC operation for original destination country’s mains voltage.
- Operating Mains Voltage: changeable with power transformer replacement and fuse value change.
- Mains Voltage Frequency: 50 Hz or 60 Hz
- Mains Fuse 100-120VAC operation: MDA 10 Amp SLO-BLO Ceramic Time-Delay fuse
- Mains Fuse 220-240VAC operation: MDA 8 Amp SLO-BLO Ceramic Time-Delay fuse
- B+ Fuse: MDA 1 1/2A SLO-BLO Ceramic Time-Delay fuse
- Badge Illumination: Units produced before 4/2003 use 8V, 0.3A “Fuse-Lamp” 1/4″ X 1 1/4″
– Serial numbers after N250188 use LED illumination which probably won’t burn out - Power Cord: Detachable IEC standard. Appropriate power cord supplied for destination country
- Unit Dimensions: W=19″ x D=13″ x H=9″ each
- Unit Weight: 69 lbs. each
- Shipping Box Dimensions: 22” x 19” x 18”
- Shipping Weight: 79 lbs. each