Classical Listening Room and Classic Cantonese Songs

Classical Listening Room and Classic Cantonese Songs

This is a classical listening room as Chinese style, and a classic Cantonese song call late love was playing...

Tube Buffer Preamplifier X10-D Music Fidelity 6N11 No Gain AC12V Sweet Natural Taste

The song Wang Bu Le Ni come from smartphone, and processed by X10-D Music Fidelity tube buffer preamplifier, which was launched in the mid-1990s in British, excellent sound effects, cute and unique appearance. It caused quite a stir when it hit market. Its role and advantages are, it can greatly reduce the digital taste and transistor sound when connected between VCD, CD, DVD, CD-ROM and other digital audio amplifier, so that the entire sound system has sweet natural tube taste. X10-D Music Fidelity, cleverly designed that output terminal with a deep negative feedback, reaches a high performance, distortion rate dropped to a surprising degree.

Its output terminal with a deep negative feedback, reaches a high performance, distortion rate dropped to a surprising degree. 

And, its designer took advantage of the feature of a very good linearity and working condition of tube 6N11 still when its screen voltage reduce to 50V.And when provide AC 12V low voltage power supply , and boost to ± 28V power supply , which can significantly prolong life and improve the signal to noise ratio of tube.

Also. adopt positive and negative DC power supply, eliminating the second stage amplification tube cathode resistor and capacitor, eliminating the negative impact brought by the cathode resistor and capacitor. And transistors can also be used, without using those expensive, bulky high-voltage components.

1st Generation IWISTAO Bluetooth Wireless Speaker

It is the first generation Bluetooth Wireless Speaker that is prototype sample, adopted Bluetooth 2.1 version CSR BC57E68. And its casing was made of ABS plastic by CNC, then painted with blue , after it finished, we take a demo video.

Playing Hotel California from a HTC smartphone.

A Suitable Three-proof Portable Bluetooth Speaker for Outdoor Sports

A Suitable Three-proof Portable Bluetooth Speaker for Outdoor Sports

Environment might be more complex and severe than our daily one we encountered when we conduct outdoor sports or field travel; therefore we specialize in making outdoor clothing and other general things that are specially crafted. For audios, a portable speaker is designed to allow people to be able to listen to and enjoy music anytime anywhere in fact; but in fact we are only take portable speaker to listen in certain time and occasions. It is a very good choice that to use portable speaker to listen music as outdoor.

We do not know, three-proof functions so called waterproof, dustproof, shockproof begins gradually integrated into design of many phones since when, in order to accommodate their needs of outdoor sports or field travel, such as MOTO three-proof smartphone for waterproof, dustproof, shockproof. Features of three-proof of smart phone is very simple with a slight dustproof, shockproof, waterproof phones, mainly for young users who love outdoor sports or professional users with special needs. As its professional waterproof, dustproof and excellent anti-wrestling, anti-rolling performance, it is competence to endure those extremely bad weather conditions and application of special occasions. Wireless Bluetooth speaker seems to have followed the trend, the three-proof function portable has added in wireless Bluetooth speaker. Here is this kind of wireless Bluetooth speaker designed for outdoor sports for young users or users with special professional needs.

It may be parity trouble that to take a wired connection to listen music at outdoors, this portable speaker with Bluetooth wireless connection adopt Bluetooth version 2.1,it can be used to connect with smart phones, tablets, and a stereo Bluetooth enabled digital devices to listen music, its application is more extensive. The wireless Bluetooth speakers adopt two units which designed for armored car specifically and the sound effect is very shocking. Meanwhile, it has been specially designed, equipped with internal damping and waterproof rubber, waterproof level reaches IPX5. According to IPX5 definition of Baidu Encyclopedia is defined as follows: it can be withstand water spray test without damage, use the 6.3mm diameter nozzle spout, make test samples be apart 2.5m ~ 3m from mouth water with 12. 5 L / min (750 L / h) of water flow speed, and testing time is at least 3 min according to sample shell’s surface area of per square meter of 1min (not including installation area); namely in the above experimental conditions, waterproof function of three-proof wireless Bluetooth speaker works fine to ensure that it does not leak.

There are hidden metal grids behind converters of wireless Bluetooth speaker. Because waterproof rubber connector of the side and back is covered by a thick layer of special material, not only can it withstand rain water also it work for some time even if it is completely soaked in water. Its external dimensions are 127mm × 83mm × 57mm, weighs is about 346 grams, adopt two same 3W speaker units and a passive subwoofer unit components; the back set up a 3.5 mm audio output hole, which is an interesting option, you can use a cable to connect two devices and use them as a stereo device or external stereo headphones, as the case of multiple speakers 3.5mm series to increase the volume. There is also a Micro-USB Interface (USB Adapter), for using with an external adapter or USB output interface device, and there is a charging and battery status indicator also.

It is powered by a 1400mAh internal rechargeable Li battery, and can provides 12 hours playback time after a full charge , also due to its built-in noise reduction microphone, thereby it provide speakerphone function, and call sound clarity.

Also there is similar products for Rainproof Dustproof Antiscratch Antishock Portable Bluetooth Speaker Bluetooth 2.1 Plus EDR Stereo Outdoor .

Functiions of Rainproof Dustproof Antiscratch Antishock Portable Bluetooth Speaker 

Details of Rainproof Dustproof Antiscratch Antishock Portable Bluetooth Speaker 

The link is http://www.aliexpress.com/store/product/Free-Shipping-Rainproof-Dustproof-Antiscratch-Antishock-Portable-Bluetooth-Speaker-Bluetooth-2-1-Plus-EDR-Stereo-Outdoor/725205_1453457954.html

The other is a Portable Waterproof Mini Bluetooth Speaker Bluetooth 3.0 EDR Bluetooth Hands free Bluetooth Waterproof IP4 Shower, 

the link is http://www.aliexpress.com/store/product/Free-Shipping-Portable-Waterproof-Mini-Bluetooth-Speaker-Bluetooth-3-0-EDR-Bluetooth-Hands-free-Bluetooth-Waterproof/725205_1459879256.html

Portable Waterproof Mini Bluetooth Speaker Bluetooth 3.0 EDR Bluetooth Hands free Bluetooth Waterproof IP4 Shower

Portable Waterproof Mini Bluetooth Speaker Bluetooth 3.0 EDR Bluetooth Hands free Bluetooth Waterproof IP4 Shower

Portable Waterproof Mini Bluetooth Speaker Bluetooth 3.0 EDR Bluetooth Hands free Bluetooth Waterproof IP4 Shower

Portable Waterproof Mini Bluetooth Speaker Bluetooth 3.0 EDR Bluetooth Hands free Bluetooth Waterproof IP4 Shower

Portable Waterproof Mini Bluetooth Speaker Bluetooth 3.0 EDR Bluetooth Hands free Bluetooth Waterproof IP4 Shower

Related posts:

IWISTAO Waterproof Bluetooth Hand-free Speaker (Model No:WBM2288)

Wistao Mini HIFI tube Bluetooth audio hit market

Wistao Mini HIFI tube Bluetooth audio hit market

In era of achieving simplified designing, it is increasingly simple that product appearance of design such as traditional product of iPhone design,but some necessary functions have been added to products to better facilitate consumers. Wistao Technology, adheres his belief of Convenience Life with Wireless, introduced a HIFI Vacuum Tube Bluetooth audio to markets.

This HIFI Vacuum Tube Bluetooth audio, adopted Hybrid designing with preamp 6N1 tubes, and amplifier using high-power integrated power amplifier IC. It combines mellow beautiful sound quality of tubes and high power output of the IC. Its maximum power is up to 2 x 28W, and it’s enough to meet your listening needs. Its High gloss panel design, tubes is gleaming under transparent protective shells, also mirrored to be ablaze by high gloss panel. Simply to design its switch also, you can choose to use Bluetooth signal input or RCA line input, and you adjust speaker volume through control right volume knob easily. Two kind colors of product are available, black and white. Rear of this tube amplifier had been set up two models of power supply switch, 100V/50Hz-60Hz and 230V/50Hz-60Hz available for switching, basically it can meet electrical environment around the world..Gold-plated output interface within the rare, coupled with HIFI copper wires, so you will not miss every detail of the music.

Not only is it suitable for enjoying classical music, but also for enjoying popular music. We selected a lossless audio of "Hotel California" to test this HIFI Vacuum Tube Bluetooth audio, its performance is also remarkable, motorized sound of a motor roar away from left to right to present accurate positioning of sound field, such as a motorcycle truly over from your sides, bass performance is its strength, sound of drums blow, clank to your ears, human voice is still clear ...

More detailed information about this model, please visit Wistao Technology website, http://www.wistao.com/en/products_show.html?740