Moon Neo 330A Stereo Power Amplifier

SKU Neo 330A

2 x 125 Watt Stereo Power Amplifier



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The Nēo 330A Power Amplifier is a combination of high-performance and an elegant package.

Bred directly from the Evolution Series, the Nēo 330A represents not only an amazing value, but also amazing sound, period. It delivers a tight, extended and superbly authorative bass with power, weight and articulation. Vocals and cymbals float in a musical space filled with the air and natural ambience of a musical performance. When mated with the Nēo 350P Preamplifier, the combination provides a musical performance so complete and satisfying that one wonders if it can get any better.

Technically, the Nēo 330A is the stereo version of the flagship Nēo 400M Monoblock Amplifiers. Like all MOON products, the Nēo 330A is built to the highest standards of materials, quality control, reliability and performance that has made MOON products so famous and respected around the world.

Of course, key features you’d expect in a MOON Nēo Series product are present such as 12V triggers and an RS-232 port for custom-install environments. Finally, the Nēo 330A is available in three different finishes: the standard “all black”, as well as special order “all silver” or “2-tone” (black & silver):

Nēo 330A Technical Features

· A “no overall feedback” design resulting in genuine real-time amplification, a more accurate musical reproduction with respect to tonality, virtually non-existent intermodulation distortion and the elimination of common phase errors resulting from feedback
· An oversized power supply
· Custom proprietary toroidal transformer design with lower magnetic, electrical and thermal loss, yielding an improved power transfer and lower regulation factor. The result is increased current speed and better dynamics
· Precision matched proprietary MOON Bipolar output transistors with unprecedented gain linearity, resulting in improved bass response and even more accurate sonic reproduction
· A high damping factor for superior musical dynamics, improved signal speed and refined timbre accuracy
· Balanced differential circuitry
· “Class A” output to 5 watts for greater efficiency
· 12 Volt trigger input/output for remote operations
· RS-232 port for (i) full unsolicited bidirectional feedback and (ii) firmware updates
· Rigid chassis construction to minimize the effects of external vibrations
· Optimized selection of very high quality electronic components
· Low operating temperature for an ultra-long life expectancy.

Nēo 330A Detailed Specifications

Type Solid State
Configuration Stereo / Balanced
Power Supply Transformers 400VA
Power Supply Capacitance 85,000µF
Class Of Operation A/AB
Balanced Inputs XLR – 1 pair
Single-ended Inputs RCA – 1 pair
Input Device Type J-FETs
Input Impedance 47.5KΩ
Input Sensitivity 800mV RMS
Output Device Type Bipolars – 4 per channel
Output Binding Posts 1 pair/channel – 5-way, Gold-plated, Shielded
Output Power @ 8Ω 125 Watts
Output Power @ 4Ω 250 Watts
Output Power @ 2Ω 325 Watts
Output Power – Bridged Mono 400 Watts
Frequency Response 10Hz – 125kHz   (+0/-3dB)
Output Impedance < 0.02Ω
Damping Factor   (static) > 400
Gain 31dB
Signal-to-noise Ratio 100dB @ full power
Maximum Output Voltage 40 Volts
Slew Rate 42 V/µs
Maximum Current – Peak 28 amperes
Maximum Current – Continuous 13 amperes
IMD Unmeasureable
THD   (20Hz – 20kHz @ 1 watt) 0.02%
THD   (20Hz – 20kHz @ 125 watts) 0.05%
12 Volt Trigger Input/Output Operation Direct Logic (0V = off, 12V=on) using a 3.5mm
mono jack with an output impedance of 1000Ω
and current requirement of 12mA
RS-232 Port 9-pin female DB connector
Power Consumption @ idle 36 Watts
AC Power Requirements 120V / 60Hz   220-240V / 50Hz
Fuse Replacement   120V   /   220-240V 6.0A long fast blow   /   3.0 long fast blow
Shipping weight 33 lbs / 15 kgs
Dimensions   (W x H x D) 16.9 x 3.5 x 14.0 in.   (42.9 x 8.9 x 35.6 cm.)
15.0000 kg



Class AB


Black, Two Tone Black & Silver

Depth (mm)


Height (mm)


high current output

±25 amps


Moon Neo 330A

power output 4 ohm

250 Watts

power output 8 ohm

125 Watts


Power Amplifier

Width (mm)


xlr inputs


home theatre amplifiers

Power Amplifiers

powered channels

2 Channels

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Moon specialises in custom home audio solutions, from custom handmade cables to headphone modification services.