Hi deserter, the speakers are from some hi-fi speakers I no longer use, so are quite efficient. You'll find car speakers work but will not be as loud for a given input signal.
Anything with over 95db 1w/1m is very good. A typical car speaker would be around 87db 1w/1m (each +3db is a doubling of output) eg a 90db 1w/1m speaker will be twice as loud as a 87db 1w/1m for any given input power.
There is an amplifier yes, mobile phones, mp3 players ect will not power normal speakers to a level above a whisper, so amplification is necessary.
The battery that powers the amplifier is good for 20-30 hours playtime at near maximum volume. It is a 7ah SLA.
The boxes are ported to increase bass response of the speakers which in turn means a more compact box. The standard approach for most loudspeakers on the market today.
It all sounds more complicated than it actually is I think.
Quote: Originally posted by valkrider on 17/7/2014Dan, you cannot argue with £55 for a functional trailer, nice job.
My trailer wasn't just one for me, I actually started it as a business.
My trailer was the first prototype, I had another prototype which was slightly different, which I sold.
Due to a number of setbacks I had to stop the business. The website someone designed for me would very rarely pass on messages through the contact form.
After I stopped I had an email from the hosting site saying my inbox was full but there was no way I could access the inbox.
In the end I spent £30k on trying to get the business up and running before running out of money.
These trailers would still cost over £500 to make not including my labour.
Here's the other one.
Thanks Valkrider. Its a real shame that you were not able to continue the busisness after such finiacial and personal investment especially as you obviusly had a product that was in demand.
Here's mine and OH's newest project, for "Giraffen", my 40 year old retro tent:
LED- light strip, running from 10 AA batteries. The strip is mounted on a strip of wood that fits into the plastic hooks I can clip to the tent pole:
...and a crocheted holder for the battery pack, retro stile:
------------- Proud owner of a 1987 Sprite Alpine 370 EK, a cheap popup tent and a beloved retro Trio frame tent from the early seventies, called Giraffen.
Keep in coming Pingvin, I am astounded at your ingenuity, industriousness and imagination. Love Giraffen's curtains, no wonder you gave it that name
Sarahir - beautiful cushion as before. I'm resting on my laurels too much and need to exercise some creative skills I feel: carry bag for the Hago stand perhaps... you're re-inspiring me.
------------- Camping - emotional resilience in action, a triumph of hope over adversity and antidote to virtual reality.
This is our home made chuck box in situ this summer. It's from the plans by Blue Sky Kitchens, and works like a dream. Extra provisions storage, shelving, hanging and worktop space, that folds down into the stand and is easy to transport.
Edited to add - sorry...forget it. I can't figure out how to get photos on this forum.
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets
Topic: Home made? Pics please!
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