PA1 Generation II : USD 280 ; Product Introduction: Portable USB Signal and Power Supply Noise Eliminator

Portable PA1 II

•   Portable USB signal and power supply noise eliminator
• Second generation major upgrade
• More detailed and smooth sound
• Supports linear regulated electrical input
• Can charge mobile phones/PAD  

Product Features

• Patent regeneration technology
• Three working modes
• Reduce power noise by 3-5 times
• Add linear power input
• <5 milliohms power output internal resistance
• Support>1A reverse charging
• Regenerated power supply noise reduction of 100%
• Low noise clock
• Non inductive low power consumption
• 4.7uv linear voltage regulator
• Small size, low weight
• The sound has significantly increased with linear regulated power supply

Second generation low voltage

USB regeneration system

• The noise of the regenerative power supply has decreased by 100%
• More refined, smooth, and authentic sound
• More detailed and excellent regenerative noise reduction performance

Continuing all the advantages of the portable first generation PA1

• No change in volume, no increase in power consumption
• The weight remains almost unchanged
• Support all functions of the first generation

External linear regulated power supply interface

Further improve performance

If a non-linear power supply is provided, it is mainly for emergency charging purposes and can also significantly improve the output power performance. If a linear power supply is supplied, such as LP1s or Soundaware LP1 2025, it can significantly improve the power performance of noise cancellation and output.

Press the button to control reverse charging

Listen while charging for more freedom

Charging the device while playing without fear of power loss

When working on PA1 II, if there is an external power supply, the button controlled reverse charging function can be used for the phone or PAD, with a charging current greater than 1A, ensuring that the phone or PAD can still be charged during playback. It supports Apple and Android devices with Type-C interface.

Interface Description

• Input: Usually connected to USB output of mobile phone/PAD/PC
• Output: usually connected to small tail/large tail/USB decoder, etc
• Clean DC5V in: External power input interface (maximum support 5V2A input)
• Charge Reverse Charging Button: When connected to an external power source, press this button to turn the PA1 font on the panel red and reverse charge the phone or PAD (not supported by computers). The cable must support the charging protocol during reverse charging

Size description

• Size: 44.5mm * 22mm * 9.5mm
• Weight: 13g
• Voltage: 5V
• Maximum current: 2A
• Accessories: Customized pure copper double ended Type-C data cable * 1 

         Dual ended Type-C data cable with charging protocol and communication * 1

Q&A

1.How much improvement in sound compared to the previous generation portable PA1 without external power supply mode?

Due to a 100% reduction in power noise in the regeneration section, the output sound becomes smoother, more natural, with better details and realism, and is more durable. Testing on MDA3 revealed  an improvement in one ear.

2.How to make better sound when using external power supply?

The quality of the external power supply is crucial for the overall USB output power and signal quality, and is the core of the entire optimization. It is recommended to use at least LP1s level or higher linear regulated power supply, and the impact of external power supply cables and output cables is also significant. If reverse charging is not required, the input cable of the phone/PAD can also be replaced with a HIFI cable for better results.

3.How to use a linear power supply for external power supply while in motion?

Directly use a power bank to supply power to LP1s, and supply the linear power output of LP1s to the portable PA1 II.