Brief Introduction:

VISTRON AUDIO DA Series Class D subwoofer power amplifiers are equipped with the unique ability to operate continuously at full rated output—a performance attribute not shared by most home audio amp designs. The benefits of this remarkable reserve capacity include solid, punchy dynamic range and fewer "nuisance" shutdowns when operated at sustained high levels. This subwoofer amplifier technology was developed to offer extreme amounts of power without the wasted heat and energy of traditional amplifier designs .A bass boost option enables the 12 dB/octave low-pass crossover, perfect for sealed enclosures and even certain vented box alignments.

The amplifiers are also extremely compact, lightweight, and cool-running, allowing users to enjoy the advantages of compact system form factors and flexibility of placement. An internal peak limiting circuit prevents amplifier overload, and protection against internal and external faults is also provided. Input power requirements are user configurable to either 110 VAC or 230 VAC line voltage.

Room optimization and system integration are accomplished easily, thanks to the DSA Series amps' inclusion of fully variable level, crossover frequency, and phase controls. Signal input is connected via dual RCA-type jacks, including the means to accept the output of an A/V receiver's LFE output, and dual RCA jacks are also provided to facilitate line level loop-through. When in standby mode, the amp's full active operation is engaged by signal presence of less than 0.5 watt.

Technical Parameter:

Specifications of the audio speaker:

Features:

* DSA series subwoofer amplifier plate amplifier
* Different product range of different power output, 250W, 350W and 500W.
* Class D amplifier design
*Digital technology , Regional Module Design

* Switching power supply provides excellent efficiency

*Switchable 110/230V input voltage
* Capable of sustained, continuous output without thermal shutdown
* Built-in limiter circuit protection prevents peak overloads
* Manual and automatic on/off mode options

* Low-level, high-level, and LFE inputs for flexible interconnection 

* Large power with MCU signal processing ,good dynamic control, designed for home theater subwoofer

*Variable gain control  

*Variable 50Hz ~ 150Hz low pass filter

*Selectable 0° / 180° phase

 * Aluminum panel

*The subwoofer speaker with green 0.5-watt low standby power consumption

*RoHS compliant, lead-free construction, world-wide safety certifications
* OEM and ODM are welcome.

Except for above items, we also have many other items for your selection, such as active and passive speakers, bluetooth / wifi speakers, power amplifier, CD /DAB and DJ equipment . All products can be do customized design, just contact me for more details.

R&D

We are professional audio products manufacture for 10 years.

Our R&D team dedicated to the creation of new and innovative products,can fulfill our customers’ specialized OEM orders.

OEM and ODM

We have several experienced engineers to meet your demands,make your ideas to the real products!

1).Shells ----make different Logo,Color,Print,etc. for shells;

2).Solution ----make products with different functions;

3).Accessories ----make products with different language manual,port etc;

4).Other Requirements.Just Contact me.Skype:vistronaudio

QC

We pay attention to High Quality.

All raw materials and accessories must be tested before entering production facilities.

Mass production will begin only if the products have been tested and have passed inspection.

During mass production, personnel will periodically check products to ensure randomized testing.

Before shipping,our QC will check it again strictly to ensure the High Quality.

All products 100% QC before shipment.

Warranty & Return

We offer one-year warranty for our products.

As long as there's no man-made problem, usually we can just add some pieces in your next order.

Professional service

best production capability ,best quality control, Best Service .

What we can provide to you is not only  just the products,but also the satisfying service.

Well-trained and experienced staffs to answer all your questions in time.

Packing Including:

1 X Bluetooth audio amplifier

1 X Power cord

1 X User manual for the amplifier

1 X Remote control

1 X Cr2032 battery for the remote

1 X Giftbox

BTA-250 Bluetooth Audio Amplifier Packing info:

(1).One set bluetooth audio amplifier in a giftbox

(2).Gift box size: 314*225*77 mm

(3).Eight set audio amplifiers packed in a outer carton

(4).Carton size: 645*335*250 mm

(5).3640 pcs BT AMP loaded in a 20' container;

       7640 pcs Portable HIFI Amplifiers loaded in a 40' container.

Q:How to process an order? What about prices?

A: Please send an inquiry or contact with us online, after receiving your inquiry we will reply you with prices and information; Or catalog with full prices.

Q:If I can get a samples?

A: We are honored to offer you samples for testing before placing order.

Q:Can I have my logo printed on the products and packing?

A: Totally acceptable, OEM service grown up for many years, thank you.

Q:Could you produce the products as my idea?

A:Of course,we have experienced enigineers to design the expected items as you want,we have much experience at ODM.

Q:What is your payment terms?

 A:For sample:T/T, Paypal, west union;

For production: T/T, L/C,or negotiable terms.

Q:What would the delivery time be?

A: Regularly 30 days after order confirmed, or we can talk details case by case.

If there any other questions,just contact me!

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