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BT-1A Bluetooth Receiver Module for Wireless Reception of Bluetooth Audio Signals

Brand:| Model: BT-1A
Overview
The BT-1A Bluetooth module adds a Bluetooth wireless audio receiver to nearly any device. Great for connecting the Bluetooth audio output of an iPad, tablet computer, or smartphone to your computer, receiver, or even your subwoofer, wirelessly.
Highlights
  • Add a Bluetooth audio receiver to nearly any amplifier
  • Class 2 range of up to 15 meters (49.2 feet)
  • 16-bit A2DP support for true stereo output
  • On-board power and audio jacks
  • Includes connection cables
  • Voice prompts for device pairing
  • Bluetooth v1.2 compliant
Part # 
320-353
Weight: 0.1 lbs.  
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Product Details

BT-1A Bluetooth Receiver Module for Wireless Reception of Bluetooth Audio Signals

The BT-1A module builds upon the success of the orignal BT-1 Bluetooth audio receiver, and improves upon it by moving the power and audio connections on-board (2.5 x 1 mm power jack and stereo 3.5 mm audio jack), reducing the overall size of the module, and adding voice prompts for pairing and connection instructions. 

The BT-1A is designed to integrate wireless Bluetooth audio from smartphones, tablets, or laptops into speakers and subwoofers, car audio applications, and remote wireless amplifiers. Additionally, this module may be used to create a wireless link between a Bluetooth source and a traditional amplifier, receiver, preamplifier, or mixer.

Features of this Bluetooth v1.2 compliant receiver module include a small form factor, a Class 2 range of up to 15 meters (49.2 feet), and 16-bit A2DP support for true stereo output. A USB A-Male to 2.5 x 1 mm power plug cable and a stereo 3.5 mm male plug to 3.5 mm jack extension cable are included with the module for quick connection and use. The USB A-Male plug is used as a power connection that uses 5 VDC off of the USB bus from a computer or powered USB hub.

Specifications: • Supply voltage: 3.3 to 5.0 VDC • Supply current: 50 mA • Operating frequency: 2.4 to 2.483 GHz • Bluetooth specification: v1.2 • Output power class: Class 2 • Receiver sensitivity: -80 dBm • Output level: 1V RMS • Output impedance: 1k ohm • Frequency response: 20-20,000 Hz (-3 dB) • Sampling: 44.1 kHz, 16-bit • Signal-to-noise ratio: 70 dB • THD: < 0.1% @ 1 kHz • Dynamic range: 85 dB • Channel separation: 65 dB • PCB dimensions: 3/4" W x 2-1/2" L • Includes 12" USB power cable and 18" stereo male to stereo female audio cable • Audio output cable length: 18".

Note: This device only receives stereo Bluetooth audio. The USB cable included is only for powering the BT-1A. This device does not transmit a Bluetooth signal, and does not convert the digital USB audio output to analog. Ground loops can occur when using a grounded (3-prong plug) computer as the power source. Please see the Related Items section for the Axxess 3.5 mm ground loop isolator to solve this issue if it occurs.



Product Specifications
  • Project Kit TypeAudio & Bluetooth
BT-1A Bluetooth Receiver Module for Wireless Reception of Bluetooth Audio Signals
  • BrandParts Express
  • ModelBT-1A
  • Part Number320-353
  • UPC844632006951
  • Product CategoryElectronic Project Kits
  • Unit of MeasureEA
  • Product Rating
    (32 Reviews)
  • Weight0.1 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

BT-1A Bluetooth Receiver Module for Wireless Reception of Bluetooth Audio Signals
BT-1A Bluetooth Receiver Module for Wireless Reception of Bluetooth Audio Signals is rated 4.1562 out of 5 by 32.
Rated 1 out of 5 by from RabbiBad fidelity. Spend more money for quality. OK for data, but not sound.
Date published: 2014-03-18
Rated 5 out of 5 by from Simple and EasyI purchased this receiver to put in a homemade boob box that I am currently making and it is just what I need for adding wireless connecting to transfer music. I hooked up the receiver, the LED light came on, and it showed up within a second on the Iphone "devices" list to be able to connect to then connected no problem. The module did not distort the music at all and I hope it lasts for a long time!
Date published: 2014-03-13
Rated 5 out of 5 by from Exactly what I needed!Was looking for a device that you didn't need to fuss with pressing a button every time you got in your car. And I found it on Parts Express! This allows me to get into my car and just go to my playlist or fave station on my phone and instant music!! No extra buttons to hold down for pairing, or on/off just automatic music. Now I just need someone to tell me exactly how to wire a steps own power supply to it from a 12v source so I can bypass my cigarette lighter I'd be golden!!!
Date published: 2014-03-06
Rated 5 out of 5 by from Works great but would like to see a newer version!First of all these modules work flawlessly, are compact and easy to integrate. The only downside is that I make Bluetooth speakers for techy people and on more than one occasion have been asked what version of Bluetooth and a techy doesn't want to hear "v1.2", he wants to hear "v3.0 or v4.0" whether it makes a difference in sound or options doesn't matter.So, long story short, a v3.0 would be nice. I've ordered a few from China but I would be willing to pa a few bucks more to get it from Parts Express.
Date published: 2014-01-26
Rated 5 out of 5 by from perfect pairing with dta-2I Bought this to put in a boombox build using some nd90's and the dta-2. After I figured out how to tap into the dta-2's switch so this little guy would turn on and off with the dta-2 I was in business. Aside from the aforementioned voice commands being slightly irritating its not too bad and perhaps that voice confirmation is a bit nice. I would suggest that the led be wired like on the dta-2 and instead of voice confirmation the led would turn from red to blue or something along those lines. There is an led on this unit but its a small one wired on the board so not practical to move. Afterall most people are gonna bury this inside a diy box. To see how I wired it to operate off the dta-2 pot switch... http://techtalk.parts-express.com/showthread.php?240924-Using-a-DTA-2-amp-potentiometer-to-Power-on-and-off-a-BT-1A-bluetooth-module
Date published: 2014-02-05
Rated 4 out of 5 by from Works great!Needed something to allow me to Bluetooth from my iPhone to our (older) Bose Radio. The BT-1A is a snap to set up and works just as described. This was my 1st purchase from Parts Express and I am very pleased with product, price and delivery.
Date published: 2014-01-22

Product Q&A

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who own this product or have experience with it.
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please email tech@parts-expresss.com  for a prompt reply.
BT-1A Bluetooth Receiver Module for Wireless Reception of Bluetooth Audio Signals

Powering this as a freestanding unit?

I would like to build this into an amplifier I'm building as an input. Unfortunately, the low voltage source that I'm using to power the amp is 12 volts.Any suggestions as to a cheap power supply I can add into the project to power this board? And any idea how clean it needs to be? I can always add my own filtering if needed.
Asked by: OU812
I'd use a voltage regulator like a 7805 to step 12v down to 5v. It normally gets power from USB, which I would guess has some noise, so I bet you'd be fine grabbing 12v from whatever's powering your amp.
Answered by: bassguy51
Date published: 2014-01-25

Range?

How is the range with this thing? I have the old version of this receiver (the BT-1: http://www.parts-express.com/pe/pshowdetl.cfm?&Partnumber=320-352), and got very poor range -- max of about 20 feet line of sight, and about 10 feet or less if someone walked between the receiver the and Bluetooth device. Would anyone be able to do a direct comparison between these 2 versions of this receiver? Both of them claim the same thing in their specs: "Class 2 range of up to 15 meters (49.2 feet)", so I'm guessing the range would be similar or the same.
Asked by: eboyer
Mine is installed in a small radio shack project enclosure, within a pelican 1400 case, and I was able to walk approximately 175 ft down the hall with it never losing connection(complete LOS), however when the buddy walked in to his room next door, it lost connection momentarily until he was IN his room, then it continued playing. I think the range is great on the BT-1A but obviously can't compare much more then that to the BT-1. Hope this helps you in your decision. Cheers.
Answered by: EvilFate
Date published: 2013-03-21

Does either the power cord or audio cord help in BT signal reception?

I plan to put this into a small boom box that I am making (3/8" Baltic Birch). I am concerned if mounting inside the case will diminish or interfere with the BT signal reception strength. And if it does, will increasing the length of either the power or audio cord help?I've also got a 25W amp powering the whole thing, so would the proximity of the BT receiver to the amp cause any interference? If so, should I put a shielding around the receiver or increase the distance from the amp? Thanks for any help or suggestions in advance!
Asked by: BMan63
The BT antenna appears to be a trace on the daughterboard of the BT-1A module. I doubt any wiring attached to it would affect the reception either way. I would not put the antenna inside a shield, though. You may want to use shielded cable for hookup and maybe shield SOME of the BT-1A, letting the antenna end stick out, but I bet there would be no problem if you kept it away from the power supply.
Answered by: bassguy51
Date published: 2013-07-11

How would I connect this into a car stereo without an AUX in? Car stereo does have a cassette in dash and a CD changer in the trunk.

Trying to add this to a car stereo so I can pair it with my iPhone. Car stereo (factory) is descent and I'm trying to delay buying a new head unit with iPhone or BT controls. Thanks
Asked by: Shrank
There are two ways you can wire this to a factory radio without AUX or bluetooth capability. You can use a cassette adapter, or an FM transmitter. I would recommend a cassette adapter for better quality and less hassle.
Answered by: MattP
Date published: 2013-02-11

Why is it cutting out

hi i bought 2 bt-1a bluetooth input adapters I hooked the usb up to an iphone 110v to 5v 1amp usb and the aux to an aux input on my stereoit will randomly cut out allot , even with the phone stationary 3 feet away it seems to to it with both bt1a's i have. they will some times comeback on  some times i have to disconnect power and delete and reconnect tried it on iphone 5 ipad 2 MacBook pro
Asked by: Hessdawg
Both of mine have had no such issues, however they both run off of a hi capacity battery and thus have more then sufficient current available. When you are charging a battery, the exact current level is not as important to maintain as when running IC's. It may also be related to the signal your devices are broadcasting to it, or the quality of the audio transmission being broadcasted over the bluetooth signal. Try a dedicated power source such as a battery and try altering your equalizer settings on your apple devices(the only common between them) and see if the issues goes away with reduced bass etc. Best of luck.
Answered by: EvilFate
Date published: 2013-03-21

Will it stay on

Will this go into a sleep mode or auto shut off mode or does it stay on? I am thinking of putting this is an enclosure mounted up high and will be plugged in to an AC outlet all the time. How do you pair with this? Is it a code so that I can easily use another device to pair with it?
Asked by: VinnyNH
Yes this device stays on as long as there is power going to it. This pairs with any bluetooth compatible transmitter just like any other bluetooth device.
Answered by: MattP
Date published: 2014-01-25

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