Hello to you all.

I hope that one of you can help me here but what is the loudest battery
powered, non-Ipod docking, portable speaker system that you know of?

All of the ones I can find seem to level off at only 3 Watts per
channel like the PowerTraveller K2000.

Any suggestions?

Cheers,

J

In article .com,
The Fuzz wrote:
I hope that one of you can help me here but what is the loudest battery
powered, non-Ipod docking, portable speaker system that you know of?

All of the ones I can find seem to level off at only 3 Watts per
channel like the PowerTraveller K2000.

There are a variety of battery powered reasonably powerful amp/speakers
available in the pro market, but of course use many large capacity
re-chargeable cells so are pretty expensive, large and heavy.

--
*Great groups from little icons grow *

Dave Plowman London SW
To e-mail, change noise into sound.

Errr... thank you but

blimey.

Perhaps that may be a little extreme for my purposes. A halfway house
may be a better target.

I need to hear music over the sound of an 85hp outboard engine in an
open top boat but I'm also a soundman by proffession, so I'd rather my
ears not to be bleeding by the end of it too.

Any other suggestions?


J

On 10 Jul 2006 12:47:40 -0700, "The Fuzz"
wrote:

Errr... thank you but

blimey.

Perhaps that may be a little extreme for my purposes. A halfway house
may be a better target.

I need to hear music over the sound of an 85hp outboard engine in an
open top boat but I'm also a soundman by proffession, so I'd rather my
ears not to be bleeding by the end of it too.

Any other suggestions?


J

Etymotic ear buds - they'll stop the external noise very
comprehensively as well as letting you hear the music in high quality.

d

--
Pearce Consulting
http://www.pearce.uk.com

Don Pearce wrote:

Etymotic ear buds - they'll stop the external noise very
comprehensively as well as letting you hear the music in high quality.

He may have a need to stay aware of the sounds around him, depending on what
he uses his boat for - there's nautical stuff about maintaining a proper
watch, and water traffic often uses sound signals (and two-way radio). If
push came to shove, it would be...

10,000-ton ship: 1
Etymotic buds: 0


--
Wally
www.wally.myby.co.uk

The Fuzz wrote:

I need to hear music over the sound of an 85hp outboard engine in an
open top boat but I'm also a soundman by proffession, so I'd rather my
ears not to be bleeding by the end of it too.

Any other suggestions?

You don't need music in a boat. Did Masefield ask for an iPod?

I must down to the seas again, for the call of the running tide
Is a wild call and a clear call that may not be denied;
And all I ask is a windy day with the white clouds flying,
And the flung spray and the blown spume, and the sea-gulls crying.

--
Eiron.

"Eiron" wrote in message
...
The Fuzz wrote:

I need to hear music over the sound of an 85hp outboard engine in an
open top boat but I'm also a soundman by proffession, so I'd rather my
ears not to be bleeding by the end of it too.

Any other suggestions?

You don't need music in a boat. Did Masefield ask for an iPod?

I must down to the seas again, for the call of the running tide
Is a wild call and a clear call that may not be denied;
And all I ask is a windy day with the white clouds flying,
And the flung spray and the blown spume, and the sea-gulls crying.



I must go down to the sea again, to the lonely sea and the sky,

I left my shoes and socks there - I wonder if they're dry?

;-)

Although I am confounded to agree with you Eiron, I do not think that
Masefield was imagining my 85hp engine along with 'the winds song' when
he wrote Sea Fever.

I just need something with enough kick but easy enough to remove from
an otherwise easily nickable position e.g an open top speedboat. But
realistically also easy to lock down so that it doesn't go overboard.

Wally is quite correct about needing your wits about you though. Some
vessels announce their movements by tooting their horns in assorted
patterns so ears clear where possible. That said, I do own a pair of
the etymotics.

But back to the point in hand though. Is 3 watts per channel really
the measly best I can expect from a light battery operated speaker
pair? It doesn't seem credible. There has to be an arguement for that
kind of portability of system.

How are people supposed to really annoy each other on camp sites and
the beach if there are no brazenly loud but portable setups?

You did say you where a soundman didn't you ?

Not heard of watts equal v squared over r ?

eg an amp powered off 9v battery into an 8ohm spkr will give almost 10w
providing it can draw enough current and can drive rail to rail. Does your
outboard have a generator that can charge a car battery ? you could mount a
cheap car radio cd player that supports mp3's or even has an input for an
ipod which would be good for 20w/channel.

Pete

Pete Cross wrote:
You did say you where a soundman didn't you ?

Not heard of watts equal v squared over r ?

eg an amp powered off 9v battery into an 8ohm spkr will give almost 10w
providing it can draw enough current and can drive rail to rail. Does your
outboard have a generator that can charge a car battery ? you could mount a
cheap car radio cd player that supports mp3's or even has an input for an
ipod which would be good for 20w/channel.

Pete



Sounds like you have mistaken 9v DC for 9v AC. Quite a difference. An
amplifier running off a 9volt rail can output 8v p-p at best (2xVbe have
to be taken off the maximum rail voltage). 8v p-p is 2.83v rms which
into 8 ohms is 1W. There are techniques used involving DC-DC converters
which can increase the rail voltage, bridge connection and/or output
transformers which reduce the load impedance as seen by the amplifier,
but for a straight single-ended transistor amplifier driven from a 9v
rail, 1W is the best you'll get into 8 ohms.

S.