 | PM |  | | Quote | | | Reply | | | Full Topic | |
| Joined: | Thu Feb 23rd, 2012 |
| Location: | London |
| Posts: | 5952 |
| Status: |
Offline
|
I checked out all the panel-mounted MP3-players I could find.
If you have a specific question on one you've looked at, I could probably answer it.
Broadly speaking, they either come WITH or WITHOUT built-in amplifiers.
Yours, which are kinda 'the car version', as you know, don't have built-in amplifiers.
The versions advertised as having 3W+3W amplifiers, all seem to be based around a pair of 8002B digital-amplifier chips.
They output 3 Watts @ <10% distortion, probably around 1 Watt @ <0.1% distortion.
Not too bad, all things considered.
If the built-in amplifier is not required, a 'normal' line-level output can be taken from Pin-4 of the chip (I think).
The 3 Watt 'digital-output' of these models, CAN NOT be fed into a regular sound-mixer, SMOKE will result.
This is due to the fact that the digital-amplifier output has no 'real earth' connection.
Taking a wire from Pin-4, for feeding into any regular line-level audio-gear, should work fine though.
I looked at all the options & took a punt at this one below.
Including remote-control & wiring-looms, inc. P&P, it cost me £2.02p !!
Further units, sans remote-control, could probably be haggled-down to maybe £1.50p each ??
I am thinking that >> THE REPLICANT << might well use 8 or more of these units.
What I liked about this one is :-
It has the 3W+3W built-in amplifier.
It has a very-small front-panel area, perfect for a cluster of 8 or more, in an A.B.S box.
All 'hidden' functions, without buttons, are accessible using the remote-control, ie. E.Q. settings, Repeat-mode, Track forward/backward, Volume up/down etc.
Since it doesn't have a built-in F.M-Radio, the screen for this, is not needed.
Access to the 1/2 dozen Tracks one might have on the SD-Card, is simply done 'screenless' using the remote-control.
More . . . s o o n . . .
Si.
____________________
' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1
' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
| Close Window | |