MOON 250i v2 vs MOON 641 Detailed Comparison

MOON 250i v2 vs MOON 641

Amp to replace

Change

MOON 250i v2

Integrated Amplifier | 50 watts RMS into 8-ohms

Check price atAmazon›

Change

MOON 641

Integrated Amplifier | 125 watts RMS into 8-ohms

Check price atAmazon›

MOON 250i v2

Check price atAmazon›

MOON 641

Check price atAmazon›

MOON 250i v2

See at AMAZON

MOON 641

See at AMAZON

MOON 250i v2 vs MOON 641 Integrated Amplifier Comparison

In this review, we will be comparing 250i v2 and 641, two Integrated Amplifiers by MOON. Let's have a brief look at the main features of MOON 250i v2 and MOON 641 first before getting into our more detailed comparison.

Key Specs	MOON 250i v2	MOON 641
Power	50 watts x 2 channels into 8 ohms and 100 watts x 2 channels into 4 ohms	125 watts x 2 channels into 8 ohms and 250 watts x 2 channels into 4 ohms
Amplifier class	Class A/B	Class A/B
Damping factor	—	700
Built-in DAC	No	No
Phono input	Yes	—
Headphone output	Yes	No
Bluetooth	No	No
Weight	—	26.08kg / 57.4lbs
Dimensions (H x W x D)	3-1/2" x 16-7/8" x 14-3/8" 88.9 x 429.3 x 365.8 mm	4-1/16" x 18-15/16" x 18-5/16" 102.4 x 481.3 x 465.3 mm

What size room are the MOON 250i v2 and MOON 641 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 250i v2	MOON 641
Near-field	Average	Poor
Small Room	Good	Poor
Mid-size Room	Average	Good
Large Room	Poor	Good
Very Large Room	Bad	Average

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 250i v2 over MOON 641

MSRP Price(*)	2,400USD vs 11,000USD	costs less (*prices may change depending on the seller, location and time)
Total Analog Inputs	6 vs 5	More options for connecting Analog sources
PhonoInput	Yes vs No	Connect a turntable directly to your amp
Headphone Output	Yes vs No	Connect your headphone to the amplifier
Base Surface Area	1570.4cm²/ 243.4inch² vs 2239.5cm²/ 347.1inch²	takes less space in your room
Height	88mm vs 102mm	Easier to fit in smaller spaces

Reasons to choose MOON 641 over MOON 250i v2

Watts into 8-ohms	125 watts vs 50 watts	Delivers higher power into 8-ohms speakers
Watts into 4-ohms	250 watts vs 100 watts	Delivers higher power into 4-ohms speakers
Total Harmonic Distortion (THD)	0.003% vs 0.02%	Less Harmonic Distortion
Signal to Noise Ratio	109 dB vs 101 dB	Higher ratings results in cleaner sound

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 250i v2 and MOON 641 differs from each other.

MOON 250i v2 Inputs

Total Number of Analog Inputs: 6
Phono Input

MOON 641 Inputs

Total Number of Analog Inputs: 5
XLR Input Port

Outputs

Yes Headphone Output

Outputs