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Old 31 May 2021, 18:36   #1
Ulysses13
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Has anyone tried adding internal speakers to their Amiga?

With space at a premium, and the Amiga being a really compact machine, has anyone tried adding some internal speakers under the grille, to remove the need for another thing on the desktop, needing to be plugged in?
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Old 31 May 2021, 19:52   #2
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No reason why you couldn't, but surely it's much more straightforward to just use a monitor with speakers. The audio quality isn't the greatest, sure, but you can't exactly fit a HiFi set inside the case either
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Old 31 May 2021, 19:59   #3
Lord Aga
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It's a gimmick, sure, but I can see it being useful in a portable Amiga. The one you move around for meetings and parties.

In a home setup, I guess it would save some desk space. On the other hand, every Amiga deserves a HiFi noise maker
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Old 31 May 2021, 20:21   #4
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Not a good idea, speakers too close to the floppy drive could cause magnetic flux problems where the disk cant be read and actually corrupted, same if you have a CF card or hard drive inside.
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Old 31 May 2021, 20:33   #5
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Not a good idea, speakers too close to the floppy drive could cause magnetic flux problems where the disk cant be read and actually corrupted, same if you have a CF card or hard drive inside.
There are magnetically shielded speakers for that, or speakers with a second cancelation magnet.
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Old 31 May 2021, 21:38   #6
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Didn't all CRT TVs have magnetically shielded speakers?
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Old 31 May 2021, 21:41   #7
Galahad/FLT
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There are magnetically shielded speakers for that, or speakers with a second cancelation magnet.
Just how much room do you think is between the RF shielding and the outer case lol
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Old 01 June 2021, 14:05   #8
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Wouldn't it also require an amplifier since Amiga produces only 'line level' signal?
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Old 01 June 2021, 19:06   #9
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Fair enough, perhaps not the most realistic suggestion. Imagination got the better of me. Might be a nice to have, if they could be turned on and off.

I'm running my A1200 on an HDTV via HDMI in our living room when I can - so having a set of speakers out too, and needing to be powered etc is a pain. I don't have the space for a permanent desktop setup sadly.

The Indivision AGA Mk3 doesn't have good sound support via HDMI, which has been a disappointment as the sound (when I get it) through the TV is great, and that really would have been the one-stop minimal solution.

Might have to get a soundbar or something which could sit under the TV then.
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Old 01 June 2021, 21:03   #10
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Fair enough, perhaps not the most realistic suggestion. Imagination got the better of me. Might be a nice to have, if they could be turned on and off.
It IS realistic! Yes, you would need an amplifier but these are cheap and readily available. Also, there are plenty of small and thin speakers available.

Look here: https://www.soundimports.eu/nl/dayto...o-dma45-8.html

and here: https://www.tinytronics.nl/shop/nl/a...ume-control-v2

The speaker is a bit deep but magnetically shielded. There are also thinner examples but not shielded. So, these must be mounted further away from the floppy. Don't worry about compactflash or ssd devices, these are not sensitive for magnetic fields. The amplifier I linked runs straight from 5V and has a volume knob. This particular amplifier chip is also known to sound well.

Put some 3D printed volume behind the speaker... Some dampening stuff... Maybe a bass reflex port... Plenty of fun to be had...
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Old 01 June 2021, 21:20   #11
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An hdmi audio inserter would solve your issues: https://www.aliexpress.com/item/3298...35b61cdcHpPxnm (HDMI 4K2K AUDIO INSERTER).. I need one myself for easy recording and handy to have at hand anyway
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Old 01 June 2021, 22:48   #12
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Back i the day, I had an A600 motherboard built into a drawer in my desk for some room automation stuff. Part of that was to use it as an alarm clock, and I added a speaker to it. It would indeed need a small amplifier, but I built a simple one from an op-amp that was powered from the floppy port, and I'm sure you can buy similar ones for pennies. I did have a little more space, but you can always get smaller speakers - after all, laptops have speakers in them too...
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Old 01 June 2021, 23:22   #13
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Quote:
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The one you move around for meetings and parties.
I do not think this make sense. At parties you usually need powerful speakers.
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Old 02 June 2021, 00:37   #14
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I could see it being useful but any speakers small enough to mount internally would be pretty tinny and horrible.
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Old 02 June 2021, 09:06   #15
Ulysses13
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The HDMI Audio Inserter looks interesting. By the time I have another box plugged into the Amiga and powered separately though, I may as well have speakers.

I think I'll get a soundbar that will be subtle under the TV, and cross my fingers for the audio compatibility on the Indivision to improve with updates...
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Old 02 June 2021, 11:37   #16
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Originally Posted by Galahad/FLT View Post
Not a good idea, speakers too close to the floppy drive could cause magnetic flux problems where the disk cant be read and actually corrupted, same if you have a CF card or hard drive inside.
CF cards are not susceptible to magnetic fields for all I know. I agree that there could be problems with floppies or harddisks but I could imagine that the fields of small speakers won't be strong enough to do real damage.
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Old 02 June 2021, 19:36   #17
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I could see it being useful but any speakers small enough to mount internally would be pretty tinny and horrible.
I think a realistic target would be "can you get it to sound on par with built in speakers in 108x / 8833 monitors" not compare to proper external speakers.
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Old 03 June 2021, 11:23   #18
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I think its a great idea!
Stereo sound when i play Pinnball Dreams!

I think i will try these little speakers:
https://www.electrokit.com/en/produc...jst-connector/

They seem to be a good match to the little 3w amp mentioned earlier:
https://www.electrokit.com/en/produc...digital-3w-5v/
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Old 03 June 2021, 20:48   #19
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I think its a great idea!
Stereo sound when i play Pinnball Dreams!

I think i will try these little speakers:
https://www.electrokit.com/en/produc...jst-connector/

They seem to be a good match to the little 3w amp mentioned earlier:
https://www.electrokit.com/en/produc...digital-3w-5v/
Youtube demo when you're done?
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Old 12 June 2021, 22:19   #20
Ulysses13
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Quote:
Originally Posted by DanC View Post
I think its a great idea!
Stereo sound when i play Pinnball Dreams!

I think i will try these little speakers:
https://www.electrokit.com/en/produc...jst-connector/

They seem to be a good match to the little 3w amp mentioned earlier:
https://www.electrokit.com/en/produc...digital-3w-5v/
Let us know how you get on...
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