SpeakerDecision
  • SPEAKERS
    • By Type
      Passive Bookshelf Speakers Passive Floor-standing Speakers Passive Center Channel Speakers Passive In-wall Speakers All Passive Speakers Powered Subwoofers Powered Stereo Speakers
      By Brand
      Acoustic Energy Aperion ATC Audio-Technica Audioengine Bluesound Bowers Wilkins Buchardt Cambridge Audio Canton DALI Definitive Technology Dynaudio ELAC Emotiva Fluance Focal Fyne Audio Genelec GoldenEar Harbeth Jamo JBL Kanto KEF KLH Klipsch Leak Mackie Magnepan MartinLogan McIntosh Mission MoFi Monitor Audio Nuvo Onkyo OSD Paradigm Perlisten Polk Audio PS Audio PSB Q Acoustics REL Revel Russound Sennheiser Sonos Sonus faber Sony Spendor SVS Tannoy Technics Triangle Velodyne Victrola Wharfedale Wilson Audio Yamaha
  • AMPLIFIERS
    • By Type
      All Amplifiers Integrated Amplifiers Stereo Receivers Streaming Amplifiers Power Amplifiers
      By Brand
      Accuphase Advance Paris Anthem Arcam Audio Research AudioControl Audioengine Audiolab Bluesound Bose Buchardt Cambridge Audio Denon Devialet ELAC Emotiva Eversolo FiiO Fosi Audio Hegel HiFi Rose Integra JBL LEAK Luxman Marantz Mark Levinson McIntosh Michi MISSION MOON Musical Fidelity NAD Naim Onkyo OSD Parasound Pass Labs Peachtree PrimaLuna Primare PS Audio Rega Rogue Audio Roksan Rotel Schiit Audio Sonos Sony SVS T+A TEAC Technics Vincent WiiM Yamaha
  • SMART FIND
  • TOOLS
  • BLOG
  1. Home
  2. Amplifiers
  3. MOON 330A vs Rotel Diamond RA-6000
MOON 330A vs Rotel Diamond Series RA-6000
x
Amp to replace
Change

MOON 330A

Power Amplifier | 125 watts RMS into 8-ohms

MOON 330A
Check price atAmazon›
Change
    
Rotel Diamond RA-6000

Integrated Amplifier | 200 watts RMS into 8-ohms

Rotel Diamond Series RA-6000
Check price atAmazon›
MOON 330A MOON 330A
Check price atAmazon›
Rotel Diamond RA-6000 Rotel Diamond RA-600...
Check price atAmazon›
MOON 330A
See at AMAZON
Rotel Diamond RA-600...
See at AMAZON

MOON 330A vs Rotel Diamond RA-6000 Integrated Amplifier Comparison

In this review, we will be comparing two different types of amplifiers. MOON 330A is a Stereo Power Amplifier speaker whereas the Diamond Series RA-6000 is a Integrated Amplifier with built-in DAC speaker.

Let's have a brief look at the main features of MOON 330A and Rotel Diamond RA-6000 first before getting into our more detailed comparison.

Key SpecsMOON 330ARotel Diamond RA-6000
Power125 watts x 2 channels into 8 ohms, 250 watts x 2 channels into 4 ohms, and 400 watts bridged into 8 ohms mono. The first 5 watts are Class A200 watts x 2 channels into 8 ohms and 350 watts x 2 channels into 4 ohms
Amplifier classClass A/BClass A/B
Built-in DACNoYes
Phono inputNoYes
Headphone outputNo3.5mm
BluetoothNoYes
Weight—18.85kg / 41.5lbs
Dimensions (H x W x D)3-1/2" x 16-7/8" x 14"
88.9 x 429.3 x 355.6 mm		5-11/16" x 17-1/16" x 17-15/16"
145.0mm x 434.0mm x 456.0mm

What size room are the MOON 330A and Rotel Diamond RA-6000 Amplifiers good for?

The size of the room in which you are planning to use these amplifiers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their max power parameters:

Listening Environment MOON 330A Rotel Diamond RA-6000
Near-field Poor Are you nuts?
Small Room Poor Bad
Mid-size Room Good Poor
Large Room Good Good
Very Large Room Average Good

The sections below take each area in turn: power output, inputs and outputs, features and physical size.

**This post contains affiliate links, and we will be compensated if you make a purchase after clicking through our links. As an Amazon Associate I earn from qualifying purchases.


Reasons to choose MOON 330A over Rotel Diamond Series RA-6000
MSRP Price(*) 4,400USD vs 4,500USD costs less (*prices may change depending on the seller, location and time)
Base Surface Area 1526.6cm2/ 236.6inch2 vs 1979.0cm2/ 306.7inch2 takes less space in your room
Height 88mm vs 145mm Easier to fit in smaller spaces

Reasons to choose Rotel Diamond Series RA-6000 over MOON 330A
Handheld Remote Yes vs No Control the amplifier by the included RC
Watts into 8-ohms 200 watts vs 125 watts Delivers higher power into 8-ohms speakers
Watts into 4-ohms 350 watts vs 250 watts Delivers higher power into 4-ohms speakers
Total Harmonic Distortion (THD) 0.0075% vs 0.05% Less Harmonic Distortion
Signal to Noise Ratio 103 dB vs 100 dB Higher ratings results in cleaner sound
Buil-in DAC Yes vs No Connect digital sources without an external DAC
Bluetooth Yes vs No Stream music via Bluetooth devices
Total Analog Inputs 4 vs 2 More options for connecting Analog sources
PhonoInput Yes vs No Connect a turntable directly to your amp
USB Input Yes vs Connect Sources via USB
Headphone Output 3.5mm vs No Connect your headphone to the amplifier

Inputs and Outputs

The input and output selections that are offered is an important factor when comparing two amplifiers. Here you can find how the I/O selections of the MOON 330A and Rotel Diamond RA-6000 differs from each other.

MOON 330A Inputs
  • Total Number of Analog Inputs: 2
  • XLR Input Port
Rotel Diamond RA-6000 Inputs
  • Total Number of Analog Inputs: 4
  • Phono Input
  • 3 Optical Digital Input
  • 3 Coaxial Digital Input
  • USB Input:
    • USB-A front(Connects to iOS devices)
    • USB-B (allows connection to your Windows PC or Mac computer)
  • Ethernet Port
  • XLR Input Port
Outputs
Outputs
  • Stereo RCA, Sub Preamp Outputs
  • 3.5mm Headphone Output
  • Subwoofer Output
Rotel Diamond RA-6000 Back View
Rotel Diamond RA-6000 Back View (Click the image for the larger version)

What's in the Box of Rotel Diamond RA-6000?

Here are the items that come with the Diamond Series RA-6000:
  • Stereo integrated amplifier
  • 58-inch AC power cord
  • Remote control (RR-AX200)
  • 2 AA batteries
  • 59-inch USB-B to USB-A cable
  • 57-inch Ethernet cable
  • USB thumbdrive (with Windows PC driver)
  • Quick Installation Guide
  • Warranty/Registration Card
  • Important Safety Instructions
  • Addendum For Roon Test

LATEST BLOG POSTS
Naim's Uniti Star Lite Is the Star Without the CD Drive, Because the Drive Stopped Existing
Naim's CI-Uniti 102 Makes the Same 150 Watts as the $9,999 Nova PE, for $1,799
Our Speaker Placement Calculator Draws Your Room, and Says Which Rules Are Actually Physics
FiiO's EUR 269 AIR AMP Undercuts Every WiiM Amp, and Drops the One Thing They All Have
Yamaha WXA-70A: The Same 55 Watts as the WXA-50, at Twice the Price
Velodyne's See-Through MiniVee X: What the Acrylic Cabinet Costs You
Bluesound's New PULSE SUB: 350 Watts, Two 6.5in Drivers, and No Frequency Spec
Every Buchardt Speaker Is Now in Our Database, With Full Specs and Comparisons

Most Popular Amplifiers
Yamaha A-S301
Yamaha A-S301
60 watts into 8-ohms
Audiolab 7000A
Audiolab 7000A
70 watts into 8-ohms
Yamaha A-S801
Yamaha A-S801
100 watts into 8-ohms
Yamaha A-S501
Yamaha A-S501
85 watts into 8-ohms
Sonos Amp
Sonos Amp
125 watts into 8-ohms
Denon PMA-900HNE
Denon PMA-900HNE
50 watts into 8-ohms
Denon PMA-600NE
Denon PMA-600NE
45 watts into 8-ohms
WiiM Amp Pro
WiiM Amp Pro
60 watts into 8-ohms
Denon PMA-1700NE
Denon PMA-1700NE
70 watts into 8-ohms
Marantz PM6007
Marantz PM6007
45 watts into 8-ohms
Copyright © 2026 by SpeakerDecision
About Privacy Contact US Camera Decision

Report a Correction