Don't know how I missed this Peter, by the way I really enjoyed hearing the music! Anyhow, what a great idea! When I was a lad in the late 1970s, I had an old Heathkit HW-101 and I used an old WW2 set of headphones - imagine the noise ! My old man was teaching me Morse code, so I needed to find a speaker, I had an old small 2" speaker from an old receiver, but some men were putting a new ceiling in a local grocery store and I noticed large PA speakers that the men removed from the ceiling approximately 10" I asked if I could buy one and the project engineer gave me one of them. My dad and I built a cabinet for it. My Elmer at the time helped me check the impedance and it was close enough for my old tube or valve radio would handle. We made a lovely looking speaker ( just so my dad could help me with the code) we were totally amazed by the large-diameter speaker made by reducing the white noise. Sort of the same principle that you are demonstrating here. That speaker was special somehow,seemed to amplify voice frequency in some way, I still use large studio speakers on my station radios, but I never seem to find one that matches that old speaker. ( Wishing I still had it now) it would be great to try on my DSP rigs. Thanks for the video and igniting my interest with my quest for a better speaker. 73 OM ..
A much more effective (and simpler) way to boost bass is with a large book set over the speaker with one end propped up slightly -- with, say a pencil or a small stack of coins stuck under one end. You can adjust that for less bass by propping it up higher.
Interesting video I use black round downpipe 92.5 Degree offset bend just cut off 2" on both ends on my Icom 7300 and cut down tennis ball peel the yellow cloth off work fantastic on yaesu 300 it makes a big difference.
I had thought about doing this quite by accident when I cupped my hand behind the top firing speaker on my Xiegu G90. It made an appreciable difference in sound quality and volume. Now, I know I’m going to do it… lol.
Thanks for another interesting video, Peter. (I still reckon that the easiest way to improve audio quality is just to plug in a decent pair of headphones though - even if they do cost a bit of money!). Thanks too for the reference to the old Marconi factory in Chelmsford, without which I wouldn't even be here - because it's where my parents first met, when they were both working there ;-) Chris, M0JZD
The title got my attention! A good while ago I had done exactly the same thing - until I could afford to get one of those speakers with the high and low cut-off and filters and such. 👍 KD8EFQ/73
Simply effective idea, brilliant ! Worth spraying the box black perhaps if you are really keen !
Another trick with a cardboard box - - put an empty box on the floor, and before too long, there will be a cat sitting in it!
Placing a box on the transceiver... will also result in a cat appearing.
That trick even works on public sidewalks sometimes.
Careful! Covering the vent holes for the rig looks like it restricts heat flow.
Nice keyboaed@
Don't know how I missed this Peter, by the way I really enjoyed hearing the music! Anyhow, what a great idea! When I was a lad in the late 1970s, I had an old Heathkit HW-101 and I used an old WW2 set of headphones - imagine the noise ! My old man was teaching me Morse code, so I needed to find a speaker, I had an old small 2" speaker from an old receiver, but some men were putting a new ceiling in a local grocery store and I noticed large PA speakers that the men removed from the ceiling approximately 10" I asked if I could buy one and the project engineer gave me one of them. My dad and I built a cabinet for it. My Elmer at the time helped me check the impedance and it was close enough for my old tube or valve radio would handle. We made a lovely looking speaker ( just so my dad could help me with the code) we were totally amazed by the large-diameter speaker made by reducing the white noise. Sort of the same principle that you are demonstrating here. That speaker was special somehow,seemed to amplify voice frequency in some way, I still use large studio speakers on my station radios, but I never seem to find one that matches that old speaker. ( Wishing I still had it now) it would be great to try on my DSP rigs. Thanks for the video and igniting my interest with my quest for a better speaker. 73 OM ..
So simple, but so effective. Thanks for another tip, Peter.
Nice trick! Better than “cupping “ my ear
A much more effective (and simpler) way to boost bass is with a large book set over the speaker with one end propped up slightly -- with, say a pencil or a small stack of coins stuck under one end. You can adjust that for less bass by propping it up higher.
Good video. Some people probably don't realise the science that goes into woofer speaker box internal construction!
Interesting video I use black round downpipe 92.5 Degree offset bend just cut off 2" on both ends on my Icom 7300 and cut down tennis ball peel the yellow cloth off work fantastic on yaesu 300 it makes a big difference.
Wonderful music PW. Thanks for the trick. Best free ham accessory I've seen in a while.
That would have been awesome for field day outdoors!
Tennis ball works well also.
great job..if you get 2 and connect them with string you could work some dx lol
I had thought about doing this quite by accident when I cupped my hand behind the top firing speaker on my Xiegu G90. It made an appreciable difference in sound quality and volume. Now, I know I’m going to do it… lol.
Cool trick! A PVC Elbow works, too. 73 DE W8LV BILL
These magic boxes are available from Waters & Stanton. Lol nice to see some corrugated plastic ones being made available.
Thanks for another interesting video, Peter. (I still reckon that the easiest way to improve audio quality is just to plug in a decent pair of headphones though - even if they do cost a bit of money!).
Thanks too for the reference to the old Marconi factory in Chelmsford, without which I wouldn't even be here - because it's where my parents first met, when they were both working there ;-)
Chris, M0JZD
Hi there. V interesting bit of history. 73 Peter
Peter ,I use flexible pipe, off a tumble dryer it passes behind all the workshop test equipment, works well
Nice one - you could almost tune it!
Nice cheap trick LOL!
Looks like the display off the 7300 has a defekt, mine has it on the same display line :(
Yes . . . . . but it still works! 73 Peter
You can kill two birds with one stone, if you buy your music in the "box set". 😆 N3......
All that engineering and money and they fit a half dollar speaker...
Umm ok ! Thanks but no thanks, headphones every time, although I might make a pair of headphones out of boxes hi hi. Cheers mate.
The title got my attention!
A good while ago I had done exactly the same thing - until I could afford to get one of those speakers with the high and low cut-off and filters and such. 👍
KD8EFQ/73
Thanks for sharing. 73 Peter
This why I always use a good quality external speaker.
Jim WB4JAB