Audiobits Mains Noise Eliminator

If you do not like series noise filter, such as power regulator, isolation transformer, voltage regulator, mains filter, power distributor with filter, and etc, then you've come to the right place.

We are pre-launching the Audiobits Mains Noise Absorber (AMNE)! Audiobits Mains Noise Eliminator is a parallel noise eliminator device. Just plug it into any AC outlet, from 90Vac to 250Vac (universal), and it will automatically clean up the noise and free your HIFI system from noise.

Since HIFI equipment does not go through AMNE (Audiobits Mains Noise Eliminator), it will not restrict the dynamics of the system. 

Check out the video below to witness it yourself using a simple test.

Before AMNE is plugged in, we are measuring about 850mV of noise from the Line EMI Meter. Once AMNE is installed at the adjacent socket, the noise floor dropped to about 500mV. You can hear attenuated noise from the Line EMI meter too. Once the AMNE is removed, the noise floor is back to 850mV. 

The noise eliminated by Audiobits Mains Noise Eliminator (AMNE) is effective from DC till 100Mhz range. 

Applications* electrical and electronic equipment
* consumer goods, such as audio and video equipment
* machinery 
* household equipment
* various noisy environment/applications 

Connection methods
* connect to any power strips, extension blocks, extension cords
* connect to any outlets
* user can connect it near HIFI equipment or near noise sources, or both
* multiple-units can be used if noise are too severe 

Audiobits Mains Noise Eliminator introductory price U$99/unit (while stock last for 1st batch of production)+ shipping. 

Future RRP$199/unit. 

Units comes with 3 bare wires (LIVE, NEUTRAL, GROUND) for user to connect to any power plug. User can requests for UK/US/Europe/Japanese or any power plug at a small fee. 

Order now and reward yourself with better audio quality, darker background and less sibilance in your HIFI system. 

Audiobits
16/5/2020 

SMPS for audio

SMPS for audio use - now how often do you see a SMPS (switch mode power supply) that is meant for HIFI audio use? So called audiophile grade SMPS?

What are sold online are mostly SMPS mean for NON-audio usage, such as LED drivers, machine power supplies, and such. What we have here, are specifically designed to work with audio amplifiers, and they can accept HIGH CAPACITANCE LOADS!

For 800W version, for +/-70V version: 470,000UF is acceptable; for +/-35V version: 950,000UF is acceptable.
For 600W version,  for +/-70V version: 350,000UF is acceptable; for +/-35V version: 710,000UF is acceptable. 

Model: P800 SMPS U$150/pc
* Input: AC200-240V, or AC100-120V (please specify when ordering) 
* Output 1 (main): +/-70V5.5A (default)
* Output 2: +/-12V 0.5A
* Output 3: +12V 0.5A
* Acceptable output: +10V to +80V; +/-10V to +/-80V

* Regulation: main unloaded +10%, loaded +/-3%; secondary +/-20%, loaded +/-15% (under AC 220V, 400W load)
* Continuous power: 400W - 500W (25 degC ambient)
* Maximum power: 800W (25 degC ambient, can operate continuously ~5min) 
* Instantaneous power: 1200W (under dynamic music load, <100ms)
* Efficiency: <=95%
* Operating temp: -10 degC - 40 degC
* Storage temp: -30 degC - 85 degC
* Size: 80mm x 145mm x 45mm H

Model: P600 SMPS U$120/pc
* Input: AC200-240V
* Output 1 (main): +/-55V 5A
* Output 2: +/- 12V 0.5A
* Output 3: 12V 0.5A (can be customized) 
* Regulation: main unloaded +/-10%, loaded +/-3%; secondary +/-15%, loaded +/-15% (under AC 220V)
* Continuous power: 300W (25 degC ambient)
* Maximum power: 600W (25 degC ambient, can operate continuously ~5min) 
* Instantaneous power: 900W (under dynamic music load, <100ms)
* Efficiency: <=95%
* Operating temp: -10 degC - 40 degC
* Storage temp: -30 degC - 85 degC
* Size: 70mm x 140mm x 40mm H

Our SMPS employs LLC resonant half bridge switching, possessing high efficiency conversion rate, low interference, excellent dynamic response, stable output and etc. It has over-current, over-voltage, over-temperature, and short-circuit protection function - a perfect match for high end amplifiers. 

Note: product outlook may change by batch to batch.  

Based on the measured waveforms, the primary operating voltage is sinusoidal, from 80kHz to 148kHz, with very standard and smooth sinusoidal waves.

Power supply ground versus mains ground, amplifier ground versus mains ground, both waveform are smooth, without obvious ringing and interference.The incoming mains are perfect and is not affected by the power supply.

FYI: The 50Hz wave are coupled from the Y-class capacitors.

Pin definitions:
L / NC / N: AC mains input, L-live, N-neutral, NC - not connected

V+: +70V
GND: output ground
V-: -70V

FV+: +12V
G: FV+/- common, not connected to main ground, floating
FV-: -12V

DV+ / DV-: floating +12V, potential to ground cannot be >+/-150V

Protect: protection circuit, floating input, potential to ground cannot be >+/-150V, effective at 3-15V, response time ~100ms, once triggered, SMPS will be switched off. Need to power-off 5 mins to resume normal operation.

Warming: these are mains rated SMPS, use with precaution, and at your own risk

Audiobits.

Power Filter

20A (Amp) Power Filter 

- dedicated for audio video, HIFI usage

- can be used for computer or general usage too 

- dual display, 0-250Vac, 0-20A

- fused or re-settable/trip function for safety

- imported power cable 

- all connections are soldered to for absolute safety and connection

- all new components

- filter uses CORCOM 20VDK1 

Few power filter options are available, let us know when you order. Refer to the last picture of this page to look at the actual output options.

Fused options

1. 2 universal outlets - U$120

2. 2 IEC/US outlets - U$130

3. 2 IEC/US outlet + 1 universal outlet - U$140

Re-settable/trip function

1. 2 universal outlets - U$125

2. 2 IEC/US outlets - U$135

3. 2 IEC/US outlet + 1 universal outlet - U$145

Re-settle/trip function - will trip when it is overloaded, and will resume working by a reset switch. It is more convenient to use compared to fuse option. 

Dual analog voltage and current meter will show you whether your input mains are actually clean or not by looking at the vibrations of the meter needle. It is hard to notice with digital meter. 

The filter will reduce the mains pollution and provides a cleaner supply to your audio video equipment. Audio is subjective but video is definitely visible to all eyes. The artifacts can be easily seen when you turn on your water heater, motor, air-conditioner, or computer and you find that your TV or adjacent displays are showing visual noise like vertical, slanted or horizontal lines, or even dots on the display.

You should use this ON your equipment generating those noises, and also the equipment you want to protect it from. It works both ways. 

Various options

25W Audiophile Power Supply

25W audiophile linear regulated power supply - 5V, 9V, 12V or 24V, customization available for your headphone amplifier or DAC power supply.

MOS output, linear regulated power supply, high current, stable, low noise and ripple - ideal power supply for your audiophile amplifiers. 

The audio visual gears and household electrical gears are getting more complex and requires better and better power supply to work better, or to ensure their longevity in life. A normal wall adapter, switch mode power supply or notebook brick supply will carry a lot of noise and therefore will not provide the best power delivery to the connected gears, especially for HIFI equipment that is very sensitive to power supply quality. 

Battery is the best noise free power supply but the battery upkeep will be troublesome and messy. Linear regulated power supply will be close, with better reliability and ease of use, and is perfect for audio usage. 

25W linear regulated audiophile power supply: U$149/unit
- DC 5V, 9V, 12V or 24V - 4 fixed settings
- Topology - AC filtered -> toroid transformer -> bridge rectification -> high speed high accuracy OPAMP calibrated MOSFET regulated output (high current high linearity, stable, low ripple)

Input: AC ~220V (Or 110V, please contact customer service, default is 220V. 240Vac input is usable)
Output: DC 5V 3.5A, DC 9V 2.5A, DC 12V 2A, DC 15V 1.5A, or DC 24V 1A (please contact customer service on what you need)
Output display: 3 digit digital display
Dimensions: 160mm x 110mm x 60mm (LWH)
Weight: 1120g net
Accessories: US IEC power cable, DC supply cable

AC noise filter - toroid noise filter, RIFA AC filter

Inductive filtered output filter, purple ELNA capacitors

 

WIMA snubbers for low noise operation, gold alphabets ELNA audiophile caps

Note: components may vary upon batches but will still be of high quality parts

Contact us and get a unit to enjoy!