# How to connect speakers to Adafruit Audio FX Sound Board? 🔊

**URL:** <https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651>\
**Category:** Adafruit\
**Created:** [1 October 2021 14:38 UTC](https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651 "2021-10-01T14:38:14Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![teena175334](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/teena175334/32/5191_2.png) [@teena175334](https://forum.core-electronics.com.au/u/teena175334)\
**Post date:** [1 October 2021 14:38 UTC](https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651/1 "2021-10-01T14:38:14Z")

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Hey all,

How do you connect the speaker wires in this image ([Adafruit Learning System](https://learn.adafruit.com/assets/20583)) to the blue things on the right?

Do you need to solder them?

Thank you!

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**Author:** ![Jeff105671](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/jeff105671/32/3729_2.png) [@Jeff105671](https://forum.core-electronics.com.au/u/Jeff105671)\
**Post date:** [1 October 2021 21:09 UTC](https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651/2 "2021-10-01T21:09:59Z")

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> [@teena175334](#):
>
> Do you need to solder them?

No. The bare end of the speaker wire is clamped into the terminal using the screw that is visible in the image. There is more detail here:

> **[Screw Terminal Block: 2-Pin, 5 mm Pitch, Side Entry (4-Pack)](https://core-electronics.com.au/screw-terminal-block-2-pin-5-mm-pitch-side-entry-4-pack.html)**
>
> These side-entry screw terminal blocks have a pitch of 5 mm (0.197″). Each block has two terminals for the stripped ends of 22 – 14 AWG wires, and units can slide together to make longer strips. They are rated for 250 V, 16 A (UL) and ship in packs...

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**Author:** ![teena175334](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/teena175334/32/5191_2.png) [@teena175334](https://forum.core-electronics.com.au/u/teena175334)\
**Post date:** [2 October 2021 02:06 UTC](https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651/3 "2021-10-02T02:06:31Z")

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Thank you so much Jeff!

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**Author:** ![BryceT](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/brycet/32/5449_2.png) [@BryceT](https://forum.core-electronics.com.au/u/BryceT)\
**Post date:** [3 October 2021 02:15 UTC](https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651/4 "2021-10-03T02:15:52Z")

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> [@teena175334](#):
>
> Do you need to solder them?

Hey Teena,

Bob’s right, the screw terminals mean that you don’t need to solder the speakers directly to your board. However, just to clarify, it is worth noting that most of the versions you buy at Core Electronics (and from most other suppliers too) will require you to solder the blocks and pins to your board initially:

> **[Adafruit Audio FX Sound Board + 2x2W Amp - WAV/OGG Trigger -16MB](https://core-electronics.com.au/adafruit-audio-fx-sound-board-2x2w-amp-wav-ogg-trigger-16mb.html)**
>
> This is a simple, low-cost audio effects trigger that is easy to use and does not require any programming!

 ![image](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/1/11d674271c42fc0ae0b6b4199384ea27a2b31ef7.jpeg)

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**Author:** ![teena175334](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/teena175334/32/5191_2.png) [@teena175334](https://forum.core-electronics.com.au/u/teena175334)\
**Post date:** [3 October 2021 02:46 UTC](https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651/5 "2021-10-03T02:46:14Z")

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Thank you Bryce!

I completely forgot about the soldering part, so I’m super glad you flagged it.

Time for a trip to Bunnings 🚗

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**Author:** ![Liam120347](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/liam120347/32/5003_2.png) [@Liam120347](https://forum.core-electronics.com.au/u/Liam120347)\
**Post date:** [3 October 2021 03:58 UTC](https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651/6 "2021-10-03T03:58:04Z")

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Hey Teena,

Just before you jump into grabbing some solder from Bunnings there is a difference between the stuff used in plumbing/glass work and electronics, there was a good discussion here: [Feather M4 Express and NEOPXL8 M4 Featherwing problems - #4 by Phillip128696](https://forum.core-electronics.com.au/t/feather-m4-express-and-neopxl8-m4-featherwing-problems/10323/4)

In short it would be better to grab some solder such as this (Also my personal favorite): [1mm Lead Free 250g Roll Solder Australia](https://core-electronics.com.au/1mm-lead-free-250g-roll-solder.html)  
Some of the irons there look pretty decent, I’m keen to see how you go!

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**Author:** ![teena175334](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/teena175334/32/5191_2.png) [@teena175334](https://forum.core-electronics.com.au/u/teena175334)\
**Post date:** [3 October 2021 04:33 UTC](https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651/7 "2021-10-03T04:33:44Z")

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Thank you Liam! 😃

I read through the thread and I think the takeaway is that I need to use the right soldering material (where it has a non-corrosive flux)? Hopefully I interpreted it correctly.

May I ask what made you recommend this? [1mm Lead Free 250g Roll Solder Australia](https://core-electronics.com.au/1mm-lead-free-250g-roll-solder.html). Is it safer because it’s lead free?

@Robert93820 from the Featherwing thread recommended Resin Core Solder where the flux is in 5 cores in the solder. Is the lead free solder you recommended the same type?

I also got too excited and went ahead and bought this soldering iron before seeing your comment: [1mm Lead Free 250g Roll Solder Australia](https://core-electronics.com.au/1mm-lead-free-250g-roll-solder.html) I like the cool spiral stand. Do you think this iron will be ok?

Thank you Liam for all your help!

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**Author:** ![Robert93820](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@Robert93820](https://forum.core-electronics.com.au/u/Robert93820)\
**Post date:** [3 October 2021 05:08 UTC](https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651/8 "2021-10-03T05:08:35Z")

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Hi all at Core  
That link

> [@teena175334](#):
>
> [1mm Lead Free 250g Roll Solder Australia](https://core-electronics.com.au/1mm-lead-free-250g-roll-solder.html)

Says 1mm solder. The pic says on the roll 0.5mm. Which is it and how many cores. The spec sheet says Rosin but does not specify number of cores.

There is a vast difference in using 1mm and 0.5mm and 1 and 5 core solders.  
Cheers Bob

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**Author:** ![Robert93820](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@Robert93820](https://forum.core-electronics.com.au/u/Robert93820)\
**Post date:** [4 October 2021 07:46 UTC](https://forum.core-electronics.com.au/t/how-to-connect-speakers-to-adafruit-audio-fx-sound-board/11651/9 "2021-10-04T07:46:11Z")

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> [@teena175334](#):
>
> @Robert93820 from the Featherwing thread recommended Resin Core Solder where the flux is in 5 cores in the solder. Is the lead free solder you recommended the same type?

Don’t recollect doing anything like that.  
Don’t even know what a Featherwing is.  
I think you are mixing me up with someone else.  
Cheers Bob
