Specifications Noble Model-200

Two Channel Pro Audiophile Amplifier

Output power in watts: FTC: 20 Hz-20 kHz @

0.1% THD, both channels driven

8Ω per channel

185 watts

4Ω per channel

280 watts

Output power in watts: EIA: 1kHz @ 0.1% THD,

both channels driven

8Ω per channel

200 watts

4Ω per channel

300 watts

1 kHz @ 1% THD, typical both channels driven

2Ω per channel

430 watts

Output power in watts: Bridge Mono

(Through special factory mod only)

8Ω, 20 Hz-20 kHz, 0.1% THD

530 watts

8Ω, 1kHz, 0.1% THD

600 watts

4Ω, 1 kHz, 1% THD, typical

830 watts

Dynamic headroom

2 dB @ 4 Ω




Frequency response

At 10 dB below rated output power

20 Hz-20 kHz, +0/-1 dB

3 dB points: 5Hz and 50 kHz

Damping factor

> 300 @ 8Ω


Unweighted 20 Hz to 20 kHz, below rated output 100 dB

Voltage gain

31.6x (30 dB)

Input sensitivity, V RMS

Full rated power @ 8Ω

1.15v (+3.4 dBu)

Input Impedance

10 KΩ unbalanced

20 KΩ balanced


Front: AC switch

Rear: 10 position DIP switch


Power: Green LED


Input: Active balanced; XLR , Gold/Teflon RCA Jacks, Binding posts


Convection only if heat sink is below 35 C (95 F). Quiet continuously variable speed fan, front-to-back air flow if heat sink is below 35 C

Amplifier protection

Full short circuit, open circuit, thermal, ultrasonic, and RF protection

Stable into reactive or mismatched loads

Load protection

Turn-on/turn-off muting. AC coupling, triac crowbar (on each channel)

Output circuit type



19.5 (49.5 cm) wide, 6.75 (17.1 cm) tall (feet to top of Heat Sink), 16.18 (41 cm) deep (rack mounting to rear support ears)


Shipping: 47 lb. (21.4 kg)

Net: 41 lb. (18.6 kg)

Power requirements

Available for 120 or 220-240 VAC, 50/60 Hz

Power consumption @ 120 VAC both channel driven


(230VAC -Multiply currents by 0.5)


Idle 0.5A

8Ω 3A

4Ω 4.5A

2Ω 6.5A



8Ω 4.1A

4Ω 6.6A

2Ω 9.5A



8Ω 7.4A

4Ω 11.5A

2Ω 17A