To avoid a heavy power drain when the cold amplifier is first switched on, we conceived a "Soft-Start" mode which also functions as an "Ever-Warm" position allowing the amplifiers to be always warmed up for pleasurable listening. Each amplifier only consumes 30 watts of power in Ever-Warm mode. A blinking green LED reminds the user that the amplifier is in warm-up mode because as all the power supplies are at half-voltage, the amplifier will still operate at half power when the Ever-Warm mode is engaged, so the user should use the MUTE switch when in this mode.
The front-panel mute switch and angled-back chassis make it easier to hook up the interconnects, speaker cables, and IEC power cord.
In our own in-house magnetics department, our R&D team completely redesigned all of our output transformers in 1998 with the goal to reclaim that luscious rich mid-range of our vintage designs. In 2013 we reworked the output transformer to operate the output stage in Ultra-Linear mode which is a great sounding balance between the detail of triode and the brawn of Tetrode. We also specifically set out to achieve a deeper bottom register at higher power with lower distortion. Hours and hours of listening tests, measurements, and fine-tuning brought an exciting and stunning result to our ears. We hope you will agree.
- Chúng tôi luôn hướng đến sự hài lòng của khách hàng một cách tốt nhất.
- Giao hàng và bảo hành nhanh chóng trong vòng 24h.
- Dịch vụ hậu mãi, nhân viên chu đáo.
- Linh kiện, phụ kiện thay thế cam kết chính hãng, lắp đặt đúng quy trình của nhà sản xuất.
Thông số kỹ thuật cơ bản của Power Amplifier Manley Neo-Classic 500 Monoblock
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ALL-TUBE monoblock design 10 x KT90EH Electro-Harmonix Russian output tubes
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Driver Stage: High current double 12BH7EH (x2)
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Input Tube: 12AT7
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BALANCED & UNBALANCED inputs: RCA and XLR jacks (switchable)
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MUTE switch: on front panel
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TRIODE / Ultra-Linear output mode switching: on front panel
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SOFT-START turn on mode: minimizes in-rush current by first powering up amplifier to half voltages
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EVER-WARM mode: for standby keeps tubes warmed up at half voltages
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MANLEY IRON® Output Transformer: designed and wound at Manley Labs
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Front panel bias measurement and adjust: Concealed under the black oval insert
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Output Tube Standing Current: 30 mA
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Set Bias for: 300 mVDC measured across each bias tip jack to ground
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Large filter / reservoir capacitors: 3800 uF x 2
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Angled rear of chassis: provides for easy connections
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WBT binding posts: CE compliant for European models
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Input Sensitivity RCA: Triode = 1.9 V; UL = 2.10 V for full power into 5 Ohms
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Input Sensitivity XLR: Triode = 4.25 V; Tetrode = 4.67 V for full power into 5 Ohms
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Input Sensitivity RCA Triode: 118 mV; UL = 103 mV for 1 watt into 5 Ohms
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Input Sensitivity XLR Triode: 265 mV; UL = 228 mV for 1 watt into 5 Ohms
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Gain RCA: Triode = 25.5 dB; UL = 26.8 dB
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Gain XLR: Triode = 18.5 dB; UL = 19.8 dB
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Input Impedance RCA: 130 kOhm @ 1KHz
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Input Impedance XLR: 178 kOhm @ 1KHz; 20 kOhms @ 20KHz; 28 kOhm @ 20Hz
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Actual Output Impedance Triode: 0.959 Ohm
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Actual Output Impedance Tetrode: 1.22 Ohm
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Optimum Speaker Load: 5 Ohms
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Damping Factor Triode: 8.34
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Damping Factor Tetrode: 6.55
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S/N Ratio: 74 dB BW 22 Hz-22 kHz; 84 dB A-WGT at 1 Watt into 5 Ohms
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Dynamic Range: 110 dB A-WGT
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Noise Floor: -75 dBu or 100 µV BW 10Hz-500 kHz; -77.7 dB or 100 µV A-WGT 1 Watt into 5 Ohm w/Shorted Input
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Flat Frequency response: Triode = 10 Hz - 30 kHz 1 Watt into 5 Ohms
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Full Power frequency response: Triode = 22 Hz - 22 kHz; UL = 22 Hz - 22 kHz to reach 1.5% THD into 5 Ohms
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Distortion: Triode = 0.03%; UL = 0.50% BW 10 Hz - 22 kHz at 1 Watt into 5 Ohms
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Full Power Triode: 200 W @ 1.5% THD into 5 Ohms
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Full Power UL: 470 W @ 1.5% THD into 5 Ohms
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Power Consumption: 48 Watts in "EVER-WARM" mode
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Power Consumption Idle: 492 Watts
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Maximum Power Consumption: 1320 Watts at full power
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Operating Mains Voltage: Factory set for 100V, 120V or 220-240VAC operation for original destination country's mains voltage.
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Operating Mains Voltage: changeable with power transformer replacement and fuse value change.
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Mains Voltage Frequency: 50 Hz or 60 Hz
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Mains Fuse 100-120VAC operation: MDA 10 Amp SLO-BLO Ceramic Time-Delay fuse
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Mains Fuse 220-240VAC operation: MDA 8 Amp SLO-BLO Ceramic Time-Delay fuse
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B+ Fuse: MDA 1 1/2A SLO-BLO Ceramic Time-Delay fuse
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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
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Power Cord: Detachable IEC standard. Appropriate power cord supplied for destination country
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Unit Dimensions: W=19" x D=13" x H=9" each
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Unit Weight: 72 lbs. each
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Shipping Box Dimensions: 22” x 19” x 18”
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Shipping Weight: 83 lbs. each
Prior Production Models with Triode-Tetrode Switching
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Input Sensitivity RCA: Triode = 1.637 V, Tetrode = 1.837 V for full power
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Input Sensitivity XLR: Triode = 3.2 V, Tetrode = 3.6 V for full power
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Input Sensitivity Triode: 174 mV for 1 Watt into 8 Ohms
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Input Sensitivity Tetrode: 146 mV for 1 Watt into 8 Ohms
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Gain Triode: 30 dB
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Gain Tetrode: 32 dB
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Input Impedance RCA: 116 kOhm @ 1kHz
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Input Impedance XLR: 270 kOhm @ 1kHz; 20 kOhms @ 20 kHz; 38 kOhm @ 20Hz
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Actual Output Impedance Triode: 0.538 Ohm
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Actual Output Impedance Tetrode: 0.465 Ohm
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Damping Factor Triode: 14.8
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Damping Factor Tetrode: 17.2
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Full Power Tetrode: 250W @ 1.5% THD into 5 Ohms
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Full Power Triode: 100W @ 1.5% THD into 5 Ohms
