Product brief introduction

The A100 may be small in physical appearance but it will its got all the muscle you need to drive even the most demanding subwoofers to house thumping levels.
The A100 is a Class D 100 Watts subwoofer amplifier that when properly installed, runs cool under almost any load.
The A100 features a stereo/mono line level audio input that can receive full band audio from any audio amplifier, receiver or preamp or an LFE input from an appropriately featured device.
The adjustable crossover allows fine-tuning the A100 low frequency input setting to properly complement any full-range speakers or room conditions.
In addition the A100 features a phase adjustment that provides sub performance optimization given the subs placement relative to the main speakers.
Finally, if you just need more thump, there is a Boost switch that will provide a 6dB boost at 40Hz...just in case you want some extra kick.
The A100 is auto-sensing so anytime an audio signal hits the A100 inputs, the amp will instantly turn ON. The amp will also turn itself OFF after 15 minutes when no audio signal ispresent.

There is also a 12VDC Trigger that will turn the A100 ON when 12-24VDC is applied and turn the amp OFF when the voltage is removed.

Features of the 100W subwoofer amplifier
• Compact SUBWOOFER AMPLIFIER,Fits Almost Anywhere
• Cool, Efficient Digital Design
• Stereo Or Mono Audio Line Level Input (RCA)
• Adjustable Subwoofer Crossover Frequency
• Adjustable Phase Settings
• 40Hz 6dB Boost Switch
• Audio Sensing
• 12/24VDC On/Off Trigger Input
• 110/220V Switchable

Specification of the professional subwoofer amplifier

Operation guide for the A100 100W subwoofer audio power amplifier

Once installed and setup, the A100 doesn’t typically need a whole lot of attention. But just in case you need to tweak something, here’s what you’ll want to do...

ON/OFF
The A100 is auto-sensing, so typically once the system is installed and setup, the power will automatically turn ON with the presence of an audio signal on either of the L & R Line
Inputs. The amp will automatically turn OFF when no audio signal has been detected for 15 minutes.

TRIGGER - If you are using the Trigger IN, the amp will automatically turn ON when DC voltage is applied to the Trigger jack and turn OFF when DC voltage is removed..

POWER - If however you are a major control freak and just have to have the ability to turn the amp ON/OFF, toggle the Power ON/OFF button once to turn the amp ON/OFF.

VOLUME - Adjust the volume to the subwoofer until low frequency level has a smooth,natural sounding transition from the left and right speakers.

PHASE - The Phase setting allows compensation for subwoofer location relative to the main speakers. Adjust the Phase setting to the point of highest sub audio output.
RANGE: 0º to 180º of the subwoofer power amplifier.

CROSSOVER - The Crossover sets the frequency at which audio content will pass to the A100
Speaker Out. Adjust the crossover so there is a slight overlap with the low-midrange cutoff to produce a natural sounding transition to low frequencies.
RANGE: 40Hz to 160Hz.

BOOST- Set to 0dB for normal signal.

Set to 6dB for 6dB boost @ 40Hz.

Pictures of the class D mono power amplifier

Brief Introduction of Vistron Audio

We Vistron Audio with near 20 years of focusing on research-design-manufacturing-marketing and engineering service in the field of audio products.

We are professional factory with about bridle-wise around 200 workers, and 6000 square meters acreage.

Equipped with strong capabilities in R&D, qualified engineering teams with rich experience in audio products, SMT line, technical and mechanical backup, and we have strict QC standard (AP,LMS ,aging testing…) and experienced sales support.

Some learning of our team

-Electronic engineering.

The members in Vistron engineering team most have 10+ years of experience in audio electronics.

We design complete electronics products, knowledgeable processes for electronic engineering and comprehensive understanding of inter dependencies of these disciplines when implementing integrated hardware and software solutions.

- Acoustic engineering.

We are specializing in acoustic system development and transducer design experience over 20+ years. We are the inventor and always curious to developing new technologies, and we are capable to design and develop various acoustic solutions, such as HiFi speaker, Monitor speaker, Amplifier, WiFi products, Subwoofer, etc to meet different customers’ needs.

- Mechanical and industrial design.

We have 3 mechanical engineers who are skilled in 3D, 2D and graphic design software, familiar with features of different raw material, framework, tooling, package, etc. To maximize customer satisfaction of individual requirements, we provide constructive suggestions to customers in accordance with required quality standard.

-QC team.

We have full function quality control staffs with related experience; we know the quality is the most important to us and customers. We pay attention from raw material to in production and final completed goods.

-Sales support team.

We are professional audio amplifier manufacturer, and loudspeakers supplier. And we also are professional one-site audio products solution factory. Not only above, we also have so many export employees of foreign trade with many years' experience.

We can give you great support from first poposal stage, then to R&D follow up, MP, to final shipping.

At Vistron, we are committed to providing the highest level of customer service, competitive pricing, speedy delivery and a comprehensive, cutting-edge product offering.

Our ultimate goal is your satisfaction.

Words cannot express all, just trust us and we will be the right audio products supplier you need!

Products we provide:

-Power amplifier (Wireless audio amplifier, Hi-Fi amplifier, amplifier module, etc)

-Speakers (WiFi/Bluetooth speaker, Active/passive speaker, subwoofer speaker, sound bar)

-Wireless audio (DAB, WiFi amplifier, WiFi streamer, etc)

-The others (CD player, audio adapter kit, preamplifier, DAC/headphone Amp,etc)

-OEM is our main business line, we have OEM for over 100 brands all over the world.

-ODM is also one of our R&D business item too, we make the products according to your design and requirements.

Basic facilities

Just contact us for audio products, such as HIFI amplifier, loudspeakers, subwoofer, wireless audio products.

And any other audio related items, we have strong custom design ability.

Hope we have great cooperation from now!