SKU: 12548908067

MUSE HiFi M5Ultra / M5 Ultra Bluetooth Portable DAC & AMP

Sale price$130.05 Regular price$144.50
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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For Your Every Summer RSVP, with Code: SUMMER15

Description

MUSE HiFi M5Ultra / M5 Ultra Bluetooth Portable DAC & AMPFeatures: >Hi Res Portable Bluetooth+USB DAC Amp. >Qualcomms Latest QCC5125 Bluetooth Chipset. >Clean and Sophisticated Display Screen. >Built in JAN6418 Vacuum Tubes for Rich, Sweet Sound. >Electron Tube Shock Absorber Technology. >Brand New Digital Audio Purification Circuit with Dual Independent Crystal Oscillators. >Premium Audio Circuitry Featuring 6418 Architecture. >Specially Customized ES9038Q2M Chipset Crafted Independently For 6418 Tubes.

Features:-

>Hi-Res Portable Bluetooth+USB DAC/Amp.

>Qualcomm’s Latest QCC5125 Bluetooth Chipset.

>Clean and Sophisticated Display Screen.

>Built-in JAN6418 Vacuum Tubes for Rich, Sweet Sound.

>Electron Tube Shock Absorber Technology.

>Brand-New Digital Audio Purification Circuit with Dual-Independent Crystal Oscillators.

>Premium Audio Circuitry Featuring 6418 Architecture.

>Specially Customized ES9038Q2M Chipset Crafted Independently For 6418 Tubes.

>Built-in Three-Level Gain Modes.

>Supports Seven Digital Filters.

>Tube and Transistor Dual Amplification Modes.

>Dual-Headphone Outputs(3.5mm+4.4mm).

>Large 3000mAh Battery With QC4.0+PD Fast-Charging Support.

MuseHiFi M5 Ultra is a brand new portable DAC/AMP with USB and Bluetooth functions. Developed with specially designed 6418 High-Res audio architecture, the M5 Ultra brings us the goodness of both transistor based as well as tube based amplification. It houses two American Raytheon JAN6419 military-grade pentode NOS vacuum tubes. The M5 Ultra has two output options, 3.5mm single-ended and 4.4mm balanced, and it supports Tube or Transistors both the modes on both the outputs. With the MuseHiFI M5 Ultra, elevate your portable listening experience and take it to new heights with its commendable performance!!

The Analog Nature of Tubes Or The Excitement of Transistor-Based Amplification:-

MuseHiFI M5 Ultra is a flagship-level portable DAC/AMP that packs the goodness of both the worlds, you can get the analog and organic character of vacuum tubes or the excitement and clean sound of transistor based amplifiers with this single device. It is equipped with two American RAYTHEON JAN6418 military-grade miniature direct-heated pentode NOS vacuum tubes. Users can switch between Vaccum Tube or normal transistor mode easily. The M5 Ultra provides both Vacuum as well as Transistor based amplification on both 3.5mm and 4.4mm output options.

The “6418 Hi-Res Architecture”:-

The most common issue with Tube-based amplifiers is the signal interference. They usually have electromagnetic interferences mostly around wireless devices. In order to solve this, Muse HiFi has worked closely with ESS factory to customize their “6418” version of the ES9038Q2M chips. This 6418 Architecture solves the interference caused by the Bluetooth signal transmission and ensures clean output signal free from any background and current noise interferences. So you are getting the goodness of a high-resolution ESS Sabre DAC chipset along with tube amplification on the M5 Ultra.

Tube Shock Absorber Technology:-

Muse HiFi has designed the M5 Ultra with a complete set of Shock absorber solution for the JAN6418 vacuum tubes. This includes customized rubber components and suspensions. This provides the tubes with all-round buffering and shock-absorption characteristics protecting them from any microphonic or stethoscopic issues during usage.

Strong, Stable Wireless Bluetooth connectivity:-

MuseHiFi M5 Ultra houses Qualcomm’s latest QCC5125 chipset. It has a dual DSP, dual-core CPU architecture that ensures a stable, lag-free Bluetooth connectivity while supporting high-resolution audio codec such as LDAC, AptX Adaptive, etc. simultaneously.

All-New Ultra-Low Jitter Audio Clock Architecture:-

MuseHiFi M5 Ultra adopts a new self-developed digital audio signal purification system. It is equipped with dual independent Accusilicon AS318B series 45.1584MHz/49.152MHz. high-precision ultra-low jitter clocks. It ensures clean and clear audio signal processing across the circuit and offer a high-quality audio signal processing architecture.

Simple and Clean Display Screen;-

MuseHiFi M5 Ultra features a built-in display screen. The device has a clean and simple UI depicting standard settings on to the screen such as active file bitrate, amplification mode, input mode, volume level, gain-level, digital filter, and battery status. Different settings and functions are accessible on this main default screen only and there’s no need to enter into complex menus at all.

 

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: 12548908067

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4.1 ★★★★★
Based on 9 reviews
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Product Reviews
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Verified Purchase
tim zaharson
Houston, US
★★★★★ 5
i would recommend these shoes
Size: 11, Color: Black White 05
great shoes for the price. very comfortable...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
A
Verified Purchase
Albert Alvarado
Massapequa, US
★★★★★ 5
Great Fit, Lightweight, and Totally Quiet
Size: 11, Color: New Black05
Great fit and very comfortable once you pick the right size. Lightweight, breathable, and completely silent on hard floors. No squeaks or “suction” sounds like some reviews claimed. Normal packaging, normal opening, no issues at all. Excellent value for the price.
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Reviewed in the United States on May 18, 2026
V
Verified Purchase
Vince Salvino
San Leandro, US
★★★★★ 5
Most comfortable shoes I've ever worn
Size: 11, Color: New Black05
First off, I was not expecting much buying a no-name shoe online, especially for the price. Boy was I in for a surprise... I've owned these for almost a full year, and can confidently say these are the most comfortable shoes I've ever worn. I normally wear a size 11 and these fit me perfectly. Prior to this the most comfortable shoes I had were some Cole Haans with the Nike air technology. These shoes are so lightweight, so comfortable, I can wear them all day long without feeling a thing. Whenever I (rarely) need to wear a different pair of shoes, I am immediately reminded of how much I used to hate wearing shoes and couldn't wait to take them off. Based on the price, I expected them to wear down quickly. However they are still going strong. Running, hiking, long walks, biking, worn to office / casual events. These shoes have been soaked in mud multiple times, but clean up easily by just throwing them in the washing machine and then the dryer. The soles and the insoles have both worn down a bit over the past year; at this rate I expect to get 1.5 to 2 years out of them before needing to be replaced. So far I must have put at least a thousand miles on these shoes based on how much I wear them. They look good too. I have the all-black pair, and they look decent with jeans and a button up shirt for a night out, but also look natural in an athletic setting with shorts and no socks. Very versatile and subtle. Now for the cons, which are minor. The pattern on the bottom of the sole is prone to some squeaking/suction sounds at first. However after about a month some of the ridges wore down just enough that it was no longer a problem. Second: they are not as breathable as I would have liked. For example, when running or biking, you don't feel any air on your feet. Wearing them out in the sun on a hot summer day, your feet will get a bit stuffy. In fact the fabric is woven tight enough that I wear them in the winter and in the rain, and don't get too cold or wet. So I do wish they made a more breathable version for summer time use. All that being said, these are still the best pair of shoes I've ever had. Ultra light weight, comfortable, and can be worn all day long without feeling any fatigue whatsoever. --- UPDATE: It's been 1 year and 9 months, and the soles on these shoes are fully worn out and ready for replacement. Considering I've put between 1,000-2,000 miles of walking in these, that's pretty good. If anyone from Feethit is reading this, here are my top suggestions to perfect this shoe: 1) Easy fix - change the tread pattern. The current pattern causes suction cup effect on hard floors until it starts to wear down. Simply add some gaps in the circle pattern in the tread and it will remedy that issue. 2) Most importantly, put a thin piece of durable rubber on the bottom of the sole. The sole does wear down after some time and lose traction, especially on smooth wet floors (e.g. in the rain, in a kitchen, etc.). A thin piece of durable rubber would add more traction and also extend the life of the cushion-like sole (which is fantastic, don't change it!). This would easily be worth an extra $5-$10 in the price.
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Reviewed in the United States on August 4, 2023
T
Verified Purchase
T. Archer
Lexington, US
★★★★★ 4
Nice shoes, despite the squeak and inconsistent sizing
Size: 12, Color: Black White 05
Excellent shoes at this price point. Quite comfortable. They do tend to have a nasty squeak on tile floors, sort of like a suction cup being engaged and disengaged. I bought the navy blue and went back and bought the black. I have to say that the size varied greatly. With the second pair, I have to be sure to wear thin socks and even then, I struggle to get them on, despite having an extremely narrow foot. I'm not sure that a person with an average width foot could wear them. Buyer beware. You may need to go up a size.
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Reviewed in the United States on February 13, 2026
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Verified Purchase
Bob AIM
Alexandria, US
★★★★★ 5
My second pair and what they look like after 2 years
Size: 10.5, Color: New Black05, Size: 10.5, Color: New Black05
I wanted to write a review on these shoes. This is my second purchase. I bought the first pair 2 years ago and the bottoms started wearing out, after all it was 2 years. I read reviews saying that they did not hold up well. My pictures show before and after. The reason I purchased again is because I am impressed with the quality and comfort for the money.
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Reviewed in the United States on May 9, 2026

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