"Arfa Daily" wrote in message
...


"Gareth Magennis" wrote in message
...


"N_Cook" wrote in message
...
Bad input socket, is there a generic problem with these?
Of course I thought it was a PbF problem but it escaped that , leaded
solder
inside. Solder joints seem fine and no broken tag. Socket make not seen
,
not desoldered yet, maybe make underneath.
The jack centre line is off-centre of the socket centre line , the
sleeve
contact is a barrel which is chromed and only makes contact with the now
tarnished ground contact if the metal bush nut is tight and the 4
pointed
grounding tangs are not bent and are making good contact with chassis
metal.
So 2 ways of loosing ground contact. With no bush nut the chromed barrel
will rotate a few degrees and then just touching contact to the socket
ground terminal .
Of course I have the preamp out of the chassis now and so do not know
what
the initial state was other than the bush nut was not loose when
received.
All compounded by gallons of WD40 squirted everywhere that has certainly
lost the tip and ring bypass contacts to ground with no jack inserted.
I can see repeated tightening/ overtightening? of the metal bush nut
plenty of spanner/wrench force can be applied as metal nut and metal
bush)
will deform the 4 tangs/ dig deeper pits into the front panel metal,
until
eventually no contact.

An aside , why 2x 10 inch speakers for a bass amp?





Personal taste. Some people prefer the sound of 10's than 12's or 15's.
There are many many different styles of bass playing out there.

It is often said that 10's are more punchy - i.e. have faster dynamics
than 15's due to the smaller motor mass to be moved - but in my
experience, what many of us have believed for decades often turns out to
be an urban myth.



Gareth.



Slap bass and popping are much more 'percussive' than conventional
fingered bass playing, and I would guess that the stiffness and lower cone
mass of a pair of 10s over 12s, 15s or 18s, might better suit this style
of playing.

Arfa



I was kind of thinking that good quality 15's and 18's for bass guitar cabs
are often specifically designed for Bass Guitar. You wouldn't just stick a
PA speaker in there for instance, so maybe these are, or can be made, to be
just as punchy?

Dunno, I'm talking about something I don't know enough about.



Gareth.