Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

Mono amplifier with bluetooth integrated
Mono amplifier with bluetooth integrated
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 22nd January 2019, 11:00 AM   #1
Sjoon is offline Sjoon  Netherlands
diyAudio Member
 
Join Date: Jan 2019
Location: Rotterdam
Default Mono amplifier with bluetooth integrated

Hi All,

I have been looking into this forum for some time now. What an amazing amount of information can be found here to get my project going. However as my knowledge is not yet sufficient enough to build my first project I want to ask for advice.

There was a YouTube video which shows a bluetooth speaker lamp (YouTube). I would like to build one myself. The guy in the video uses a separate amplifier and bluetooth module but I would like to use a MONO amplifier board with bluetooth integrated. I understand from reading the forum that one of the most used is with the TPA3118 chip. However I couldn't find a board that also supplies bluetooth as bluetooth is stereo by default. What is the smartest solution in my case?
  Reply With Quote
Old 22nd January 2019, 08:05 PM   #2
FauxFrench is offline FauxFrench  France
diyAudio Member
 
Join Date: Dec 2017
Location: The mountains, calm and quiet.
Hoi Sjoon,

Also I will recommend you a separate Bluetooth receiver and a stand-alone mono amplifier TPA3118 is a good choice: huge supply voltage range, low quiescent current, good sound and little heating losses. Many of the amplifier boards with Bluetooth onboard have the disadvantage that an Asian voice, often in poor English, tell you when Bluetooth is connected or not - really irritating. Next, you cannot choose the quality of the Bluetooth yourself. Last, as you already know, mono-boards do not include Bluetooth.
From a separate Bluetooth module you simply do a resistive summing of the two channels to get your mono signal.
  Reply With Quote
Old 23rd January 2019, 03:29 AM   #3
avtech23 is offline avtech23  Australia
Certifiably addicted to DIY.
diyAudio Member
 
avtech23's Avatar
 
Join Date: Dec 2017
Location: South 'straya
Mono amplifier with bluetooth integrated
I have also found that the integrated boards often come with a 'turn on chime' but because the signal travels directly from BT->Amp, there isn't an easy way to modify the volume. The last board I used has the chime volume hard coded to full volume.. so every turn on is excruciating.

With a seperate BT module, you can not only pass the BT output to a volume potentiometer if desired, but some also allow a bypass input which lets you add a 3.5mm jack as an input.

You also get the flexibility of the best amp and best BT for your particular application, rather than relying on a compromise.
__________________
The ever growing project list.. :NAP140 Clone, NAD 3020i & 3225PE, JLH1969, TDA2050, Fender 5F2A Princeton, NE5532 Preamp | : VSQC Phunk Style, Retro 50W | Filmosound 601 | SHPA | : Apex AX-14 | TGM-10 | TDA7265 | LM4780 (Last in line)...maybe
  Reply With Quote
Old 24th January 2019, 10:28 AM   #4
Sjoon is offline Sjoon  Netherlands
diyAudio Member
 
Join Date: Jan 2019
Location: Rotterdam
Thank you for the advice. I will go for a separate bluetooth and amp module. Decided to still go for a mono speaker so will lead stereo to mono on the bluetooth module.

Once bought I will post some pics on my project progress. Will need to see how it all fits in the smallest version possible to keep the speaker as lean as possible
  Reply With Quote

Reply


Mono amplifier with bluetooth integratedHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
12v mono w/ bluetooth help nlcj Car Audio 1 31st July 2018 01:28 PM
Why not just use mono for boomboxes or portable bluetooth? keithostertag Multi-Way 13 17th May 2018 04:52 PM
100W Mono Bluetooth Receiver/Amplifier? MitchMev Everything Else 0 4th January 2017 06:54 PM
FS: Primare 301 Dual Mono Integrated Amplifier Boban Swap Meet 0 15th November 2009 02:41 AM
Bell Sound Mono Integrated Amplifier Dr. Photon Tubes / Valves 2 15th July 2005 03:35 PM


New To Site? Need Help?

All times are GMT. The time now is 05:43 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki