Install Bluetooth receiver in Hi Fi amplifier. We turn home acoustics in wireless: MPOW STREAMBOT (Bluetooth) VS

USB Bluetooth Audio Adapter will allow you to turn any amplifier in a wireless gadget to play sound. USB Bluetooth stereo adapter can be connected to auto tape recorder, music Center, to active acoustic system and reproduce sound from the phone, player, gaming console, laptop, etc.

Using USB Bluetooth Wireless stereo receiver you instantly get rid of unnecessary wires, Enjoy digital quality Stereo sound and all the delights of wireless control. Bluetooth adapter has a small size and is made in the form of a flash drive, which will allow you to take it anywhere.

Connection.

To connect, you must insert a Bluetooth adapter in any USB power supply. Then plug the audio cable to the AUX AUX input. All manipulations will take you no more than a minute. For power, you can use a separate power supply, say, from the same cell phone With USB output. AUX - Line input, now there is almost any device where there is a power amplifier, so it will not find it difficult. After connecting the adapter, the LED will flash with short intervals, meaning readiness for operation.

Conjugation.

In the device from which you want to broadcast music, search Bluetooth devices. In the found list, select "DMZMusic" if you try to connect the window the requesting password to appear, drive - "0000", after which the pairing will be performed (the LED on the Bluetooth receiver will flash with a large gap). Now you can play music through the amplifier columns.

Sound frequency power amplifiers (umzch) in electronics occupy a special place and used everywhere: in audio systems, TVs, CD, MP3 players, etc. Almost every radio amateler at least once on his radio practice, but collected Umzch and rejoiced that the board with the wires gives the sound. But now is not about it. Nowadays, despite the many finished designs, we still collect our audio systems themselves. And I was one of those who collect their audio system himself. For many years I have been using the RADIOTECHNIKA U-7111 amplifier for many years. Using this amplifier to listen to music, I was not satisfied with the fact that there were always many wires to connect an audio signal. This was especially not convenient when the phone is connected, which came across this to refine the amplifier.

The revision is to install the Bluetooth audio module (BAM) into the amplifier. Slightly searching for the Internet of various options, I stopped my gaze on the bass BK8000L. It is only $ 1-2 and is sold on Aliexpress. Photos of this module are presented in the figures below.

This module has such a functionality as:

• switching tracks;
• the ability to install the track pause;
• volume adjustment;
• microphone connection;
• aUX connection;
• sound indication of low battery charge;
• office S. personal computer (This functionality is available during the firmware of the module).

That's probably on it and stop. Going directly to the installation and connection of the BAM to the amplifier. And so in order.

Connection diagram BAM BK8000L

Connection scheme Take the standard from Datasheet (see Figure below), but with the condition that the additional functionality of the BAM will not be used. In this regard, the connection was simple and carried out according to the scheme below the right part of the pattern.

Connection diagram BAM BK8000L to amplifier

After thinking not much and deciding that the entrance from the pickup was never used, then instead it was decided to connect the BAM (when using this login, the BAM can be connected to another inefficient input (it is necessary to watch the electrical principle of this amplifier). Connection is carried out according to the scheme On the drawing below. To do this, you need to disappear Capacitors C8 and C9 from the output of the corrector amplifier on the diagram is marked with red crossbars and fall to the outputs of Audio_LP and Audio_RP BAM.

Connection diagram BK8000L bass to power supply

Having studied the information on this BAM came across such a problem. Almost everyone who uses this module complains of digital interference, which are very listening to the speakers when playing music. This problem It was possible to solve only the separation of the power of the amplifier and the BAM. To do this, we use such a connection scheme shown below.

1. The transformer is made from the stationary transformer wound over the section another winding, from which this BAM will be powered. To wind the additional winding on the transformer from the amplifier, it is necessary to remove the lid and the lower wall, thereby providing free access to the transformer (see Figures below).

After providing free access to the transformer, an additional winding winding with a wire from a twisted pair, having pre-dissolve it on the veins. Additional winding contains 40 turns of this wire, and its length is about 7 meters. Then the conclusions of the winding and the wire itself along the entire length fix the thermoclaim. Wire winding can be viewed on the figure below.

2. Rectifier / filter We produce from any existing diode bridge and electrolytic capacitor 470-1000 μF by 16 volts. Installation is carried out in a free place near the transformer (see Figure below).

3. A decreasing converter using the factory version of the HM-MINI-360 (see Figure below). After connecting it to the rectifier / filter and setting the voltage at the yield of 4.2 volts. Installing the converter, also carry out in free space near the transformer (see figure above).

4. BK8000L BAM Install the amplifier front under a plastic cover near the volume controller (see Figure below). This installation site will increase the radius of its action due to the lack of shielding with a metal case.

The pictures below present a photo of this alteration of the amplifier.

List of radio elements

Designation	A type	Nominal	number	Note	Score	My notebook
	Diode bridge	2W10	1			In notebook
	Electrolytic condenser	1000MKF.	1	16V.

As an umzch used stereo unch for 20 watts on the channel, which costs $ 20 on eBay. It is necessary to disassemble it and inspect the insides of the case to understand where to take the power of the module and where it, in fact, is placed. When everyone unscrewed, the amplifier looks like this.

Now about the bluetooth audio file. It is bought ready.

All together - the adapter and stabilizer, costs less than $ 8.

Bluetooth Audio receiver in disassembled form is shown in the photo. Connect 3 wires to the audio connector.

Shutter now the wires from the USB cigarette lighter - the charger.

They are both designed for food from 12 V. If the amplifier works even from 24 V - it's still suitable. But if the amplifier works from a higher voltage or feeds directly from the 220 V network, you will have to take a USB charger separately, or to search for low stabilized power on the board of the UMP itself. In general, you will figure it out.

Now connect it to the Bluetooth receiver, respectively, power on the board is 5 volts. Both modules are attached to the aluminum radiator as the most massive element of the circuit.

Logs input directly soldered to Line Audio out amplifier, but if you want to add active subwoofer Or connect anything like that, you need to drill a separate yield of 3.5 mm in the rear panel. The Bluetooth receiver itself with a thermoclaus thoroughly secure on a suitable place.

MP3862BT - built-in Bluetooth Module. For the amplifier, active speakers or radio tape recorders with Hands Free mode to buy in the whale master. Driver, Programs, Scheme, Reviews, Instructions, DIY, DIY

You can buy Master Whale MP3862BT - Built-in Bluetooth Module for amplifier, Active speakers or Magnitols with Hands FREE mode: Price, Photo, DIY, do it yourself, specifications and equipment, reviews, review, instruction, driver, programs, scheme

Master Whale, MP3862BT, built-in Bluetooth Module for amplifier, active speakers or magnets with mode Hands Free, price, description, photo, buy, diy, doodie, reviews, review, instruction, delivery, driver, program, scheme

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MP3862BT.
Built-in Bluetooth Module for amplifier, active speakers or radio tape recorders with Hands FREE mode

Let the second life of the old radio or active column.

Are available

Buy wholesale

Allows you to receive without wires to play audio files of MP3, WMA, OGG, etc. from the phone or smartphones and PCs using Bluetooth technology.

The device implements the Hands Free feature. Thanks to this feature, the plug-ins can be used as a wireless headset. Using this module, you can improve the old audio system or radio tape recorder to a modern level. After such a refinement, she will serve you for many years. The board installed regulators to compensate for the volume. The module does not require use pre-amplifier. The module is built on the XS-3868 chip.

Specifications

Contents of delivery

• Module assembly - 1 pc.
• Instruction - 1 pc.

Preparation for exploitation

• Connect the headphones or the input of the amplifier to the output of the module.
• Serve 12V power, observing polarity.
• Turn on the phone and add a new Bluetooth device "POR 1007BT".
• Turn on the musical composition. Using trimmed elements, install the required maximum volume and balance level.
• Check completed pleasant operation.

Operating conditions

• Temperature - -15c ... + 50c pcs.
• Relative humidity - up to 95% without condensate formation pcs.

Precautions

• Do not exceed the maximum allowable supply voltage of the module.
• No compliance this requirement will lead to the failure of the device.

Questions and answers

• Hello! Will this module be disabled to memorize a conjugate device when the power is turned off, so that when you do not need a re-conjugation?
  • Alexander, this module remembers the conjugate device, the re-conjugation will not be required.
• Good day. Tell me please, maybe you make the remote control buttons to this module? Maybe you can offer some option? I need buttons to the car, it is possible to glue the buttons on the smooth surface of the spirit of a third-party tape. I will be grateful to you in advance.
  • Sergey, we do not supply separately buttons. Look at their assortment of our partner Electronshik.ru
• Good day, why do not you buy this product on your site?
  • Add the Hands FREE function to the device. We expect to enter the finished product to the middle of the summer.
• Will an improved model appear this device. Instructs for example support for new codecs. Now new processors have already appeared and almost every smartphone supports them, and the old port is sold by the old port. Whether a complete linear output will appear, for example, it is very necessary for me, since the volume of the module is significantly lower than the FM receiver in the car magnetol.
  • We expect the appearance of this module by mid-summer. The module will support all known codecs and will support Hands FREE mode.

MPOW Streambot Box is well for sale that in Chinese online stores, which has quite good reviews there. And with the support of A2DP profile and AAC / APTX ® codecs, it is perfect for my tasks. Regarding codecs and profiles, I will not go into details, but on a good introductory material on this topic.

Equipment and appearance

Comes srteambot in a small box of dense cardboard. Included only wire 2 x mini-jack 3.5 mm, RCA-MINI-Jack 3.5 mm and USB-microUSB power wire.

A high-quality power supply is suggested to the standard package. In the absence of a USB-output on acoustics, you will have to buy a separate power source. Connecting to a spear bp is fraught with a tangible hum and other interference in the sound of the final system.

This kind of properties were manifested with me when connecting the receiver to with built-in USB ports, and when connected such problems did not occur.

Connecting a BT receiver takes countdown. After powering, pressing the single key will make the device visible on the network. It remains only to select "StreamBot Box" in the appropriate menu on the client device.

Everything, the receiver is ready to use. At the same time, you can connect 2 clients to it, for this we turn off the Bluetooth on the first client and repeat the pairing procedure with the second.

As for sound, everything is not so unequivocal. My laptop supports APTX ® codec therefore a tangible difference in sound on Microlab Pro 2, and even more Logitech X-240 I do not hear. But here the Android smartphone should not boast such a functionality and there is a decrease in bitrate on both speakers. The sound on the volume above average wants to call "piercing", the lack of high frequencies is also felt.

With a short inaction (10-15 minutes, the turnout) MPOW Streambot turns off and, accordingly, breaks existing connections. For further playback, you need to activate the receiver by pressing the button. This approach is absolutely unacceptable for a stationary device, so for my goals from using StreamBot Box I had to refuse.

Well, finally, the radius of action. If, within the same room, everything is fine, then leaving the phone to the kitchen or a balcony that are behind the bearing wall, the connection was often broken.

What is inside?

The device is disassembled by unscrewing the four screws under the rubber legs on the bottom of the device. Inside us is waiting for a tiny board and a piece of metal, which explains the weight purity of this device.

The heart of Streambot is a popular module based on CSR8645 chip. The price of such boards on Aliexpress varies within a piece. Why popular? Because cheap and used in a set wireless speakers, headphones and headsets produced in China.

For power amplification sound signal A separate microcircuit is used.

What did you like

• Ease of connecting and use
• No replay delay

What did not like

• Avtovascular with inaction
• Radius of action

Wi-Fi audio severity Airtry

Cost:

Airtry I found after the acquisition of the BT receiver in the Era-In-Ear online store catalog and acquired it. This device allows you to broadcast audio via Wi-Fi using Apple AirPlay and DLNA / UPNP protocols. It is noteworthy that it also is manufactured in Korea, as evidenced by the inscriptions both on the box and on the device itself.

Equipment and appearance

The standard delivery package includes: 2 audio cables (2 x mini-jack 3.5 mm, mini-jack 3.5 mm - RCA), USB power supply unit (5 b, 0.7 a), wire for connecting to BP and illustrated instructions in English Language.
The device itself is sealed in a plastic white case, the upper part of which is glossy, and the bottom is made of conventional rough plastic. All connectors are concentrated on one face: audio input, output and microUSB for power supply. The two connections under the mini-jack imply a pass-through device connection.
Unlike MPOW Sreambot, this device has no weightlifiers and weighs only 40 grams, and its soft non-rubberized legs "contribute" to moving the box even with light contact with the wire.

Connection, Setup and Operation

Airtry Music Receiver can perform the client in Wi-Fi network or a full-fledged access point in the range of 2.4 GHz (G / N). The last mode, judging by the instructions, is intended for use in the car. After powering is supplied, the receiver creates an open access point with the name Airtry_mp_ap. Connect to it and go to 10.10.10.254 to the settings page.
After connecting to the home Wi-Fi network, the device will reboot, compensates for the indicator LED, which I forgot to mention in the previous section, and will be ready to work as soon as the LED will stop flashing (after 30 seconds).

The receiver is immediately detected in iTunes, and a laptop is connected without problems. Unfortunately, the first tests testified to the unsuitability of this device for use in Setepa of my home theater because of a high delay during playback. For music, 2-3 seconds do not play any role.

After updating the firmware to version 1.2.0 and re-configure the surveillance of audio and video, it seems, it has become less common, but a delay of 1-2 seconds from pressing the Play button to start playback still remained in everyday use, such behavior is somewhat annoying. Last version Firmware can always be found, installed through the receiver admin panel, access to which can be obtained only after reset.

Mac OS AirTry can be installed by default output device. IOS also does not arise any problems.

The range of work depends on the Wi-Fi coverage area in your apartment. easily copes with one-room in panel houseSo the receiver works in the kitchen and on the balcony. As for the quality of the sound, then I did not notice the difference between the wired connection and transmission of audio via Wi-Fi.

What is inside?

Airtry also disassembled, like Streambot. Under two legs on the bottom there are screws that need to be unscrewed. Further the mediator is declining all the latches and the case is disassembled.

The power amplifier integrated into the DAC is significantly inferior to a discrete solution in the BT-receiver overlooking. Thus, in StreamBot Box, with a load resistance in 16 ohms, "issues" 132 MW, while the DAC from Wolfson is capable of only 18 MW at a similar resistance.

What did you like

• Possibility of through connection
• Extensibility system
• Quality of sound

What did not like

• Delay when playing
• Restriction when working with Android

Bonus: Apple TV of the first generation

Cost: 325 hryvnia / 13 dollars

An everyday day at leaving the product has noticed enough impressive sizes of the SECOND HAND style. I do not go to buy clothes in such places, because For adequate money there you can find very good things, so I went on occasion. At the entrance, there were two baskets meters for two with various used technicians and among them, to my surprise, turned out to be. This weighty box is more reminiscent of modern Mac Mini. was released in 2007 (9 years ago!) and based on single-core intel processor Pentium x86 architecture.

Unfortunately, Apple TV got me without a remote, and I still did not bother to purchase a new one to this day, but by connecting the media player through an Ethernet wire in home network, iTunes without problems recognized it and could be broadcasting music. The delay in the feeling of less than Airtry, but everything is also irritable.

It is worth noting that the first generation Apple. TV is a full optical exit, along with the usual analog, so that for good acoustics, this option will be even preferable.

In general, for $ 13, this box is a whole storehouse of high-quality components. What is an excellent power supply to 36 watts (5 V, 7.2 A), Wi-Fi Mini-PCI card with support for B / G / N standards and two antennas, IDD HDD by 40 GB. Despite the outdated technical characteristics of the media player by adding a modern hardware decoder instead of a Wi-Fi module and replacing an old HDD on Flash memory.

Benefits

• Extensibility system
• Minimum replay during playback
• Sound quality, optical output

disadvantages

• Power consumption (~ 20 W)
• Inability to install system device output

RESULTS

The transformation is still possible, in the current setup in the end-to-end mode, Airtry was implemented, which is used to play music from various mobile devices. To play a video in the composition of the DC, a wired connection is still used.

For convenient switch, I applied the switch, which came down from the official representative office of FIO in 2014. In theory, it was intended to compare sound sources, in fact, the role of a switch of acoustic systems. :)

All this is a temporary solution, since it still wants to get rid of the wires. Now I look after Apple TV 3rd generation. True, from using MacBook I'm not going to leave, but what to do with Android smartphones, which I would also like to implement in home System - unclear. Can you get?

Links on the topic

. At my site I duplicate your own publications from all the Internet, so too. Thanks for attention!