Hi all,
during the renovation of my house, 21 ceilling speakers have been installed and centrally wired to implement a multi-room audio system (there will be a dedicated system for high quality audio). Now, I am planning the required 21 channel amp. I read a lot about different class D boards, especially of the 3116/18 family, but I am not an expert and I hope you can help me selecting a sufficient chip/board.
Current state is as follows:
- source of the amp will be a PC (i.e., raspberry) with three 8Ch external sound cards
- speakers will mainly be Magnat Interior IC 82 ceilling speakers (100/180 watts, 4-8 ohms), a few Visaton DL10 and Sonance VP52R UTL
A design goal is to keep the power consumption low. Therefore, I am looking for a solution based on class D amps that can be muted to further reduce the power consumption if the amp is not needed.
A few years ago, somebody was building such an amp using 3118D2 PBTL mono boards, e.g., . DC 8-26V TPA3118 PBTL Mono Digital Amplifier Board AMP Module 1*60W for Ard D9J3 191466823774 | eBay
Of course, these boards are quite cheap and they have a mute connector, but the caps are only 25V and the 3118 have no heatsink. Therefore, and because its now a few years later, I am trying to find out whether there are chips or boards that are better suited to my project.
Although I can replace a capacitor or remove a resistor, the board should not need major changes, since a have no experience in designing amps. Moreover, I neither need bluetooth nor a volume potentiometer.
Possible alternative amp boards I identified based on discussions here of this forum are:
- boards based on the design of Danzz, e.g., JINSHENGDA TPA3116D2 50Wx2 Offizielle Version Fertig Stereo Digital Power Verstarker Bord-in Verstarker aus Verbraucherelektronik bei AliExpress or Yuan Jing Audio - ON SALE! - TPA3116 Class-D 2.0 Stereo Amplifier Board [50W+50W] - USD $17.99 (which seem to have 25V capacitors, too?)
- boards based on the XH-M590 design, e.g., TPA3116D2 Digital Audio Amplifier Board 2-CH Large Power AMP DC 12-24V 2 * 100W | eBay
- HW-447 such as DC5-28V 120Wx2 TPA3116D2 High Power Digital HIFI Amplifier Board Module | eBay
Unfortunately, I could not find out whether these boards have a mute connector or not. What do you suggest? Is the PBTL mono board still the way to go, or are there better (newer) boards based on the 3116/18 family, or is the 3116D2 chip outdated and amp boards with better (more efficient, better audio quality, easier design) chips available in between?
Many thanks and best regards,
Crest
during the renovation of my house, 21 ceilling speakers have been installed and centrally wired to implement a multi-room audio system (there will be a dedicated system for high quality audio). Now, I am planning the required 21 channel amp. I read a lot about different class D boards, especially of the 3116/18 family, but I am not an expert and I hope you can help me selecting a sufficient chip/board.
Current state is as follows:
- source of the amp will be a PC (i.e., raspberry) with three 8Ch external sound cards
- speakers will mainly be Magnat Interior IC 82 ceilling speakers (100/180 watts, 4-8 ohms), a few Visaton DL10 and Sonance VP52R UTL
A design goal is to keep the power consumption low. Therefore, I am looking for a solution based on class D amps that can be muted to further reduce the power consumption if the amp is not needed.
A few years ago, somebody was building such an amp using 3118D2 PBTL mono boards, e.g., . DC 8-26V TPA3118 PBTL Mono Digital Amplifier Board AMP Module 1*60W for Ard D9J3 191466823774 | eBay
Of course, these boards are quite cheap and they have a mute connector, but the caps are only 25V and the 3118 have no heatsink. Therefore, and because its now a few years later, I am trying to find out whether there are chips or boards that are better suited to my project.
Although I can replace a capacitor or remove a resistor, the board should not need major changes, since a have no experience in designing amps. Moreover, I neither need bluetooth nor a volume potentiometer.
Possible alternative amp boards I identified based on discussions here of this forum are:
- boards based on the design of Danzz, e.g., JINSHENGDA TPA3116D2 50Wx2 Offizielle Version Fertig Stereo Digital Power Verstarker Bord-in Verstarker aus Verbraucherelektronik bei AliExpress or Yuan Jing Audio - ON SALE! - TPA3116 Class-D 2.0 Stereo Amplifier Board [50W+50W] - USD $17.99 (which seem to have 25V capacitors, too?)
- boards based on the XH-M590 design, e.g., TPA3116D2 Digital Audio Amplifier Board 2-CH Large Power AMP DC 12-24V 2 * 100W | eBay
- HW-447 such as DC5-28V 120Wx2 TPA3116D2 High Power Digital HIFI Amplifier Board Module | eBay
Unfortunately, I could not find out whether these boards have a mute connector or not. What do you suggest? Is the PBTL mono board still the way to go, or are there better (newer) boards based on the 3116/18 family, or is the 3116D2 chip outdated and amp boards with better (more efficient, better audio quality, easier design) chips available in between?
Many thanks and best regards,
Crest