Soulnote M-3X Mono Power Amplifier
SKU: 39594988922

Soulnote M-3X Mono Power Amplifier

Sale price$15750.00 Regular price$17500.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Soulnote M-3X Mono Power AmplifierM3X This is a current boosted version of the M 3 Monoblock Power Amplifier Premium Silver Premium Black. It doubles the current supply capacity without compromising the spatial expression and penetration power that are characteristic of single push amplifiers, successfully achieving both delicate expression and overwhelming driving power. Newly Developed Transistor Pairing Method: We've developed a new, precise pairing method that even aligns the hfe

M3X

This is a current-boosted version of the M-3 Monoblock Power Amplifier

Premium Silver/Premium Black.

It doubles the current supply capacity without compromising the spatial expression and penetration power that are characteristic of single-push amplifiers, successfully achieving both delicate expression and overwhelming driving power.

Newly Developed Transistor Pairing Method:

We've developed a new, precise pairing method that even aligns the hfe (current gain) fluctuation rate, which changes over time due to changes in transistor current during music playback. We input hfe measurement data for numerous transistors at various current values, calculate the Euclidean distance for all combinations, and select transistor pairs that fall within a reference value (a level that can be considered identical when measurement error is taken into account). This method achieves a "smooth parallel push-pull" that rivals single push-pull. The output stage employs a pair of industrial TO3 (metal can type) transistors, the same as used in the M-3. To easily drive the two TO3 transistors, a TO3P transistor is also used in the driver stage, resulting in a total of four-stage Darlington configuration.

Copper Plate Heatsink Doubles as Busbar

The main heatsink is a lightweight, compact copper plate heatsink, something unheard of in conventional high-output amplifiers. This heatsink also serves as the power busbar for the can-type transistors, whose terminals penetrate the busbar and are mounted directly to the PCB directly below. This eliminates the wiring that is a drawback of can-type transistors, eliminating instability caused by inductance components while also eliminating the degradation in sound quality that can be caused by damping the device with an insulating sheet. Furthermore, the heatsink's physical isolation from the chassis provides a sense of freedom and clarity, providing a tremendous effect on sound quality. This truly kills three birds with one stone. Furthermore, the elimination of the insulating sheet in the M-3X improves the thermal coupling of the transistors, eliminating the time axis bleeding caused by temperature differences.

The voltage amplification stage employs a non-feedback differential circuit (new Type-R circuit) redesigned specifically for power amplifiers. The gainless differential circuit, emitter follower, and full-swing voltage amplification are achieved by a single transistor. This transistor's load resistor is connected only to GND, creating a "single-stage, single-ended, non-feedback circuit to GND." This new Type-R circuit, consisting of only four bipolar transistors and ten resistors, is essentially the same as a vacuum tube single-ended amplifier, but delivers wideband, full-swing output in a more streamlined manner. It's an ideal non-feedback circuit, worthy of being called a reference.

Ultra-simple configuration

The M-3 was born from the discovery that a power amplifier handling large currents should be dedicated to a single function. It has only one set of input and speaker terminals. It is a single-function monoblock power amplifier, lacking not only a selector or attenuator, but also any other switching functions. The signal input from the XLR terminal is connected directly to the base of the first-stage transistor, amplified in a single stage, and output via a single push-pull. The only operation required is the power switch. Of course, there are no unnecessary circuits or components, such as a microcontroller

.

Ultra-low copper loss 1600VA non-impregnated toroidal power transformer

We have developed the largest power transformer allowed under the condition that it can be carried by one person.The huge power transformer is mounted vertically on the front panel so that the direction of leakage flux is parallel to the board, and is suspended by a titanium washer to prevent harmful vibrations from being transmitted to the chassis, and is grounded with a single spike directly below it.

The high-speed non-feedback power supply

rectifier capacitor uses a specially selected, high-voltage, small-capacity, low-magnification foil filter capacitor with a capacity of just 470uF. By optimizing the capacitance through the number of capacitors used and reducing the load on the power transformer, the effective regulation of the ultra-powerful power transformer is further improved. The rectifier diode also uses a new, latest-spec SiC diode with an increased allowable inrush current value. This is the most powerful and high-speed power supply configuration imaginable.

The amplifier container is completely separate from the main housing and supports itself with three spikes.

The M-3X has a total of six spikes: three on the main housing and three on the amplifier container. Even though the two housings are completely physically separated, the power supply line from the power transformer is kept as short as possible, eliminating the effects of transformer vibration and leakage. The overwhelming effect on sound quality achieved by this ideal construction can be experienced by removing and attaching the shipping screws. Of course, the top panel, AC adapter, speaker terminals, input terminals, and bottom panel are all left unattached for the sake of sound quality.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39594988922

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 697 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
Richard M
Los Angeles, US
★★★★★ 5
It will light up your life
Color: 26Inch Light White w/Wiring Harness
I only got to use them once before my jeep was totaled. They’re super bright. Great build quality. It survived taking a header down a mountain side and rolling 4 times. When the jeep was recovered, the light bar still worked!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
A
Verified Purchase
Adam
West Palm Beach, US
★★★★★ 5
Great light - very bright.
Color: 26Inch Light White
Installed on a Bronco. It wasn't designed for a Bronco, but I was able to mount it after a trip to hardware store and some minor modifications. The quality of the light itself seems good. Time will tell how long it lasts. It definitely lights up the road and is worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2025
J
Verified Purchase
Jordan Grimsrud
Alexandria, US
★★★★★ 5
Affordable and bright!
Color: 26Inch Light White, Color: 26Inch Light White
I wish I could've done more of a review, but the videos won't do it justice from my phone. I wanted more takedown light capabilities on my vehicle, so I attached it to my Setina bumper. It is pretty versatile in how it can be installed. The way I am showing it is actually upside down from how most people would mount it. On the roadway, the light does not disappoint. It provides adequate lighting both to the front of your vehicle and reaching out via floodlights. For the price of the light bar and wiring options, you really cannot beat Nilight as an entry into LED lighting. If you reading this review wanting to know if you should "pull the trigger" and buy it, then you should, you won't be disappointed. Now I have only just bought this light, and haven't had it very long. Winter is approaching, and with that, we shall see if it withstands the weather. However, if it doesn't, Nilight has a two-year warranty on their products, which is also good to have peace of mind about your lightbar. Again light I said, if you're like me and wondering which lightbar to get, Nilight is a fantastic option and you won't be let down. Thanks for taking the time to read my review.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2020
E
Verified Purchase
EternianUber
Waukegan, US
★★★★★ 5
Nice unit
Set name: 5.1 Receiver
I'm really happy with this receiver even though I don't have any speakers hooked up to it. Not using it for a speaker setup might sound like a waste of a product to some people but honestly I'm finding plenty of value in it with it's other features. The main reason I looked into getting a receiver was so I could have multiple hdmi devices hooked up to my monitor. I looked into hdmi hubs but there are a couple reasons why I've chosen a receiver instead. 1. Reliability and ease of use. Ok, so like I said I use a monitor in my room, not a tv. Monitors don't have remotes so anytime I want to change the volume or hdmi input I have to do it manually. It's a 32 inch monitor about 3 feet to the side of my bed and it's a nice arms stretch to do so. Not a big deal and while there are plenty of hdmi hubs that offer remote changing or automatic changing I worry about the reliability of those devices. There are plenty of reviews that state their hubs stop working after some months or the automatic hdmi switching starts changing inputs randomly or getting black screens and such. I just didn't want to hassle with things like that. 2. Bluetooth connectivity. This was another feature that I was looking into. Again, there are separate devices that offer this but just like hdmi hubs you will find plenty of reliability concerns. On top of that there's audio lag and previously when I bought a bluetooth transmitter I had to return it for that reason. Nice thing about this receiver is there is an adjustment for the audio to increase or decrease the audio timing but luckily it isn't an issue and the audio seems to be timed perfectly with my bluetooth headphones. It pairs up quickly too. I haven't tried the 4k upscaling with this receiver because I use a 1440p monitor but it's nice to know that it's there. Maybe in the future I will find a use for it. There's also some neat audio presets for things like movies, music and gaming. It's actually a pretty extensive list. I suppose I should also mention that each hdmi input can be named to your liking for a nice customization feel so when you flip through them you know exactly what's connected to that input. You can even use the hdmi ports when the unit is in standby mode but you won't be able to use the bluetooth connectivity. In the end I think this was a good purchase. It's priced reasonably and I'm getting good use out of it. Sound quality is great and the customizable features are a definite plus. More expensive than getting an hdmi hub and bluetooth transmitter but I think the reliability and extra features make up for this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 23, 2019
I
Verified Purchase
int_53185
Los Angeles, US
★★★★★ 5
Yamaha quality!
Set name: 5.1 Receiver
Excellent sound quality. Easy setup. Complicated audio menus take awhile to master, but once you do you'll be rewarded with amazing sound. Works flawless with my 4k projector and computer. 4 hdmi inputs handles all your audio and video. The auto labeling feature is amazing. I've been using it daily for two years and it performs perfectly. You'll need an external subwoofer amp which is a bit of a let down. I bought one of the small Fosi amps from Amazon that handles the bass flawlessly. Overall, an excellent receiver that will be the centerpiece of your audio and video system. Couldn't be happier. Buy it if you're on the edge of purchasing a new receiver!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025

recommand products