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					 MUB1 Portable HiFi USB and Bluetooth DAC & Headphone Amp  | 
				
				
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					 Battery local pure power supply | 
					1100mW/ch high output power 
					Optional Super-high gain | NDCS shielding | Wurth inductor 
					Panasonic electrolytic capacitor | Femtosecond crystal | 
					BUF634*4 output  | 
				
				
				
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						Music listening, enjoyable and practical. 
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						Listening impressions from Clark: 
						MUB1*s general 
						sound design is consistent with QA361 and QA390LE. With 
						high sound density and a strong sense of structure, this 
						music is warm, sensitive, steady, and long-lasting to 
						listen to. It has excellent hierarchical details and 
						vertical spatial feeling. 
						 
						The PCB area and power supply of MUB1*s DAC&headphone 
						amplifier section are greater than those of QA361 since 
						it lacks a player part. MUB1 is an inch long and an inch 
						strong, and it has a few advantages over QA361 in terms 
						of sound quality. These advantages include a larger 
						sound field, a more complete sound structure, a sound 
						that is softer and more durable to listen to, greater 
						sound dynamics, and more solid mid- to low-frequency 
						reproduction. 
						 
						How could such lovely and sweet music not make you feel 
						something? Therefore, I believe that each enthusiast 
						needs at least one MUB1. 
					 
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					 Main design highlights  | 
				
				
				
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									1100mW@32 次 
									high power, more leisurely | 
								 
							 
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									Super-High Gain 
									4-speed gain selection | 
								 
							 
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									 CS43131*4 
									better sound quality  | 
								 
							 
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									BUF634*4 
									Amps big lineup | 
								 
							 
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									| 2500mAH, pure and abundant local power supply | 
								 
							 
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									 Stable and non-interference NDCS shielding design  | 
								 
							 
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									Wurth inductor 
									with a spacious and full sound | 
								 
							 
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									| Panasonic electrolytic capacitor with a good music atmosphere | 
								 
							 
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									 Selected femtosecond crystal oscillator with nominal jitter of 150fs  | 
								 
							 
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									Four level independent 
									HiFi architecture | 
								 
							 
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									| Powerful power supply system with 14 independent power sources | 
								 
							 
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									 24Bit / 96kHz  
									high-definition Bluetooth/tr>
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									Bluetooth specially optimized for 
									 
									abundant sound information | 
								 
							 
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									PCM 
									32Bit / 384kHz | 
								 
							 
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									 DSD256  | 
								 
							 
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									UAC1.0  
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									Lower distortion 
									0.0001%/tr>
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									 Signal to noise ratio 
									132dB  | 
								 
							 
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									Dynamic range  
									132dB | 
								 
							 
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									Noise almost 
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									 4.4mm, 3.5mm  
									headphone output & line output  | 
								 
							 
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									SPDIF  
									optical & coaxial output | 
								 
							 
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									Pentaconn  
									4.4 headphone socket | 
								 
							 
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									 Separation of charging and data 
									 
									(external power supply accessible)  | 
								 
							 
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									Start with the car ignition in 
									 
									CAR mode | 
								 
							 
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									Multi-platform 
									compatibility | 
								 
							 
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									 6-layer circuit board for 
									 
									digital analog separation  | 
								 
							 
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						Note: A patent application of FiiO has been submitted for the CAR mode, and FiiO has permission to utilize the CAR mode of this product. 
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					 Five major application scenarios  | 
				
				
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					 24Bit 96K high-definition Bluetooth  | 
				
				
				
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					 Receive mobile streaming input without bundling for convenient and good enough sound  | 
				
				
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					 Mobile phone connection DAC&Headphone amplifier  | 
				
				
				
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					 Pure and abundant local battery power supply 
						No anxiety of phone battery with excellent sound  | 
				
				
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					 Office desktop PC-HiFi  | 
				
				
				
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					 Desktop small DAC and Headphone amplifier all-in-one machine 
							Act discrete enough without discrete voice  | 
				
				
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					 Car HiFi audio source  | 
				
				
				
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					 Coaxial / optical input to DSP, or AUX to host 
								CAR mode with good sound, more convenient  | 
				
				
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					 Home speaker system  | 
				
				
				
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					 Expand high sound quality mobile streaming input function 
										Simple enough, practical enough, and good sound enough  | 
				
				
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					Three keys to good sound in MUB1  | 
				
				
					
					 
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					 2.75 
					times the power of QA361 dual high mode  | 
				
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						 Sufficient power margin 
						The sound is more easy and adaptable 
						MUB1 balance port output power up to 1100mW/ch 
						It is much greater than the output power of many 
						flagship players 
						Put fine timber to petty use
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					 Super-Hign gain is 3-4 times voltage amplification with high gain  | 
				
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					 Modern machines pursue testing parameters 
					The sound gets more flat and ordinary as the gain drops 
					MUB1 returns to traditional old machines with over 10 times 
					voltage amplification 
					Outstanding musical taste causes listeners to unconsciously 
					dance to the music 
					Realistic visuals set to vibrant, exuberant music that seems 
					just out of reach  | 
				
				
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					 HiFi performance needs to be ensured by the materials used  | 
				
				
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					 Use desktop HiFi materials 
					Make MUB1 sound more like a real HiFi device 
					Audio electrolytic capacitors are rarely used in portable 
					goods. 
					Panasonic electrolytic capacitor with rare sound dense sense 
					of space 
					The BUF634 provides a more scaled sound 
					Low internal resistance Wurth inductor with stable and 
					atmospheric sound  | 
				
				
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					 Sound created by power supply  | 
				
				
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					 Design of a power supply that is 
					broadband, low noise, high transient, and low in internal 
					resistance 
					Up to 14 power sources provide independent power supply for 
					each circuit part, ensuring purity and stability 
					This battery cable is combination of HiFi wires using 
					different materials, resulting in a noble sound. 
					Analog power supply voltage of up to 16V at Super-high gain, 
					with sound more open. 
					Design of a low noise power supply with analog and digital 
					separation, achieving seamless sound  | 
				
				
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					 Oscillator is the soul of sound  | 
				
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					 MUB1 selected femtosecond crystal 
					oscillator 
					High precision, with a nominal jitter of only 150fs 
					Good crystal oscillator with stable sound   | 
				
				
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					 Measurement based on APX555 audio analyzer  | 
				
				
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					 Sound quality on Bluetooth is already adequate  | 
				
				
				
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					 Bluetooth 5.0, CSR 8675 optimization 
					module with good sound 
					Supports 24Bit/96kHz high-definition Bluetooth 
					Specially optimized Bluetooth overall design 
					The information content and sound density are already very 
					close to USB connections 
					NDCS dead corner free circuit shielding technology 
					Stable connection without interference, pleasant to listen 
					to, and better to use  | 
				
				
				
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					 USB DAC&Headphone amp with full platform support  | 
				
				
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					 Support 32Bit / 384kHz, DSD256 
					Android, iPhone, and tablet ready to use 
					Local batteries are pure and plentiful. the sound quality is 
					higher 
					ASIO driver, compact PC HiFi all-in-one machine for Windows 
					desktop 
					Act discrete enough without discrete voice 
					UAC2.0, Linux, MacOS drive free, 
					The USB OTG output of HiFi player can also be used 
					Support UAC1.0  | 
				
				
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					 CAR mode that simplifies car audio upgrades  | 
				
				
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					 MUB1 has optical and coaxial outputs, and 
					Line out can also be set 
					One line connection to the car audio DSP is sufficient, 
					simple and convenient 
					Connect to the host Aux in through level setting Aux out 
					Both Apple and Android phones can increase the volume on the 
					phones, making it more convenient 
					In CAR mode, following USB power to automatically switch on 
					and off, more worry free  | 
				
				
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					 Four Cirrus Logic flagship DAC chips  | 
				
				
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					 Start liking Cirrus Logic DAC due to the 
					good sound quality of CS4398 
					It has the uncommon natural, enjoyable, and smooth sound of 
					a contemporary DAC 
					The new generation CS43198 and 43131 have better designs 
					The sound is more precise and realistic thanks to the 
					special NOS option. 
					Using 4 CS43131, eight channel DAC designed as two channels 
					Each four channel DAC is for providing more detailed and 
					louder sound  | 
				
				
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					 MUB1 overall distortion is better than the 
					theoretical value of DAC chips  | 
				
				
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					 Flagship level dynamics  | 
				
				
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					 Compared to the USD $2000 flagship HiFi 
					player, it is not inferior  | 
				
				
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					 Measurement based on APX555 audio analyzer  | 
				
				
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				 Almost ※zero§ noise  | 
				
				
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					 MUB1, whether single ended or balanced, 
					the medium and low gain noise <2uVrms 
					50% of 4uVrms noise at low gain only for QA361 
					The signal-to-noise ratio is as high as 132dB 
					High sensitivity headphones also struggle to hear background 
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				 Key Interface Description  | 
				
				
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								A | 
								Display area | 
							 
							
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								B | 
								Power button: Long press to turn on/off, 
								short press to turn off/wake up the display 
								screen | 
							 
							
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								C | 
								Volume +: Short press to increase the volume 
								by 1, long press to continuously increase the 
								volume by 1 | 
							 
							
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								D | 
								Volume -: Short press to decrease the volume 
								by 1, long press to continuously decrease the 
								volume by 1 | 
							 
							
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								E | 
								setting key (M): Short press to enter the 
								setting interface, long press to pause/play, 
								short press to connect/hang up when calling, 
								long press to reject | 
							 
							
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								F | 
								Previous track (∥): Switch to playing the 
								previous track and adjust the parameters upwards 
								when setting the interface | 
							 
							
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								G | 
								Next track (∣): Switch to playing the next 
								track; Adjust parameters downwards when setting 
								the interface | 
							 
							
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								H | 
								Digital audio output port: 3.5 optical and 
								3.5 coaxial (pin definition is shown in the 
								figure below) | 
							 
							
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								I | 
								Type-C charging or external power input port | 
							 
							
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								J | 
								Type-C audio OTG input port | 
							 
							
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								K | 
								Microphone pickup hole | 
							 
							
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								L | 
								4.4 balanced headphone port, also used as a 
								balanced LO port | 
							 
							
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								M | 
								3.5 single ended headphone port, doubles as 
								LO/AUX output port | 
							 
						 
					 
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				 Description of 3.5 coaxial line foot position  | 
				
				
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					                                                 Signal / Signal +                GND / Signal 
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				 Product parameters  | 
				
				
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								 Item / model  | 
								
								 Balance port  | 
								
								 Single port  | 
							 
							
								| Body size | 
								
								 96*65*14.5mm  (L * W * H)  | 
							 
							
								| Host weight | 
								142g | 
							 
							
								| Input 
								interface | 
								Type-C USB data, 
								Type-C USB power supply&charging, wireless 
								Bluetooth | 
							 
							
								| Bluetooth 
								format | 
								Bluetooth 5.0, 
								LDAC, APTX, APTX-HD, ACC, SBC | 
							 
							
								| USB protocol | 
								UAC2.0 protocol / 
								UAC1.0 protocol, supporting Windows, Mac, 
								Android, iOS systems | 
							 
							
								| USB port DSD 
								sampling rate | 
								2.8224MHz 
								(DSD64), 5.6448MHz (DSD128), 11.2896MHz 
								(DSD256), Native or DoP | 
							 
							
								| USB port PCM 
								sampling rate | 
								16Bit ~ 32Bit, 
								44.1kHz ~ 384kHz | 
							 
							
								| Output 
								interface | 
								3.5 single ended 
								& 4.4 balanced headphones (can be set to Line 
								out/Aux out), 3.5 optical or coaxial SPDIF 
								digital output | 
							 
							
								| Optical/ 
								coaxial output | 
								16Bit ~ 24Bit, 
								44.1kHz ~ 192kHz PCM, DoP64 | 
							 
							
								| DAC chip | 
								CS43131 * 4 
								pieces, QFN large package | 
							 
							
								| OP | 
								Selected 2 OP* 
								pieces with excellent texture and musical appeal
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								| Headphone 
								amplifier chip | 
								BUF634A * 4 | 
							 
							
								| Gain control | 
								Low / Mid / High 
								/ Super-High | 
							 
							
								| Volume control | 
								This device has a 
								volume level of 100, which can be independently 
								adjusted from the phone volume | 
							 
							
								| Frequency 
								response | 
								20Hz ~ 20kHz  
								㊣0.5db | 
							 
							
								THD+N 
								 (AES17 (20kHz), 
								A-weighted, unloaded, medium gain) | 
								0.0001% | 
								0.00015% | 
							 
							
								SINAD 
 (AES17 (20kHz), unweighted, unloaded, medium 
								gain) | 
								120db | 
								116db | 
							 
							
								SNR 
								 (A-weighted, 
								medium gain) | 
								132db | 
								126db | 
							 
							
								Dynamic range 
								 (A-weighted, 
								medium gain) | 
								132db | 
								124db | 
							 
							
								Crosstalk 
 (unloaded, medium gain) | 
								-140db | 
								-137db | 
							 
							
								Crosstalk 
 (32次, medium gain) | 
								-95db | 
								-73db | 
							 
							
								
								Output power 
 (THD+N<0.01%, S-gain) | 
								1100mW + 1100mW @32次 | 
								410mW + 410mW @32次 | 
							 
							
								| 250mW + 250mW @300次 | 
								65mW + 65mW @300次 | 
							 
							
								
								Noise floor 
 (A-weighted) | 
								1.2uVrms @G = L | 
								1.8uVrms @G = L | 
							 
							
								| 1.2uVrms @G = M | 
								1.8uVrms @G = M | 
							 
							
								| 2.5uVrms @G = H | 
								2.5uVrms @G = H | 
							 
							
								| 8.3uVrms @G = S | 
								5.8uVrms @G = S | 
							 
							
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								Reference: High 
								sensitivity headphones are also difficult to 
								hear to the noise floor. When QA361 has low 
								gain, the noise floor is 4uV. | 
							 
							
								| Battery life | 
								8~10 hours | 
							 
							
								| Charging time | 
								2~3 hours | 
							 
							
								| Charger | 
								Type-C charger 
								(user provided), DC 5V, ≡2A | 
							 
							
								| External power 
								input | 
								Input from 
								charging port Type-C, DC 5V, ≡2A | 
							 
							
								| Microphone 
								function | 
								Support Bluetooth 
								calls with built-in omnidirectional microphone | 
							 
						 
					 
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						Note: The above audio parameter measurements 
						are based on the APX555 audio analyzer, with the 
						internal battery fully charged and F0 filtering mode, 
						tested in the qianlongsheng Laboratory environment. 
					 
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				Note: The leather case in the picture is an optional 
				item and needs to be purchased separately. Price:US 
				$30.00 
			 
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				Note: 
				1. All components in the picture that are not included in the 
				MUB1 product list, such as headphones, computers, speakers, and 
				cars, are shown as shooting props and are not included in the 
				product. 
				2. The internal drawings of the product are for reference only, 
				and are subject to modification without prior notice. 
				3. The product pictures are for reference only, and everything 
				is subject to the actual product. 
			 
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				 Product List  | 
				
				
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				MUB1 machine, USB A to C adapter, Manual, TPU 
				For free: One Type-C, one Lightning connection cable, and one 
				USB charging cable each. 
			 
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				Price: MUB1 USB and Bluetooth DAC&Headphone Amp US $499.99 
				  (Not included 
				shipping) 
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