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record player problem, please help
 

offline napoleon from littleton on 2004-06-07 16:07 [#01227791]
Points: 75 Status: Regular



so i finally got this turntable i had purchased on ebay
today. hooked everything up (the red and white phono cables;
it's going into the back of a panasonic mini system, and
this very thin wiry cable that goes into the back of the
system and says "GND" and soem symbol. i don't know what the
last one does). the problem? i can only hear sound (and even
then it sounds rough quality) if i turn the stereo up all
the way to the max; which if it was playing a cd at would
probably explode. am i doing something wrong? i was told
that because the stereo has the phono plugs and everything i
shouldn't have a problem. thanks very much for your help


 

offline oscillik from the fires of orc on 2004-06-07 16:08 [#01227792]
Points: 7746 Status: Regular | Followup to napoleon: #01227791



sounds like you may need a preamp?


 

offline napoleon from littleton on 2004-06-07 16:11 [#01227797]
Points: 75 Status: Regular



my dad's friend is an avid record collector. he told me that
i wouldn't need one as long as i bought a record player that
connected to it via phono plugs


 

offline oscillik from the fires of orc on 2004-06-07 16:15 [#01227801]
Points: 7746 Status: Regular | Followup to napoleon: #01227797



it depends on if your panasonic mini-system has a decent amp
in it

i'm only guessing though - i don't own turntables, but my
friend does. he tried to get his turntables going off of his
mini-stereo but if i remember correctly, it wouldn't have
it.

he eventually bought a separate amp and got himself a decent
2 channel mixer


 

offline napoleon from littleton on 2004-06-07 16:16 [#01227804]
Points: 75 Status: Regular



found this on a site, it could be the problem:

"I think I know your problem. Did you by chance connect you
turntables to the AUX? If so, you need to either connect
them to the PHONO line or buy a PHONO to AUX converter. This
is because the PHONO line boosts the sound in by 20 decibles
for the turntables so anything going into the PHONO line is
really loud. This also means that if you plug a turntable
into another line, it's going to be quiet, hence your
problem."

they are going into an AUX port on mine.


 

offline oscillik from the fires of orc on 2004-06-07 16:21 [#01227807]
Points: 7746 Status: Regular | Followup to napoleon: #01227804



yeah but the only way that a PHONO line could boost the
signal going into the line is if that line was amplified at
some point - either before the signal entering the system or
after it's entered. you'd still need some way of amplifying
the signal, right?

i'm sorry that i can't be of more help. i'm sure that
someone more knowledgeable will be able to assist

i hope that you get it sorted :)


 

offline earthleakage from tell the world you're winning on 2004-06-07 16:21 [#01227808]
Points: 27795 Status: Regular



mine has a pre-amp built in that you can switch on and off
at your own convenience. the switch is hidden under the
slipmatt and can be accessed if you line up the switch with
the hole in the turntable.

i rule.


 

offline earthleakage from tell the world you're winning on 2004-06-07 16:22 [#01227810]
Points: 27795 Status: Regular



did i say slipmatt? :)

DJS TAKE CONTROL!!!


 

offline k_maty on 2004-06-07 16:22 [#01227811]
Points: 2362 Status: Regular



GND is just a ground wire, if its not plugged in you'll hear
a hum.


 

offline napoleon from littleton on 2004-06-07 16:27 [#01227821]
Points: 75 Status: Regular



yeah, i took the ground wire out and it made no difference.
no luck with looking for the preamp switch.

thanks for your help oscilik. i'm completely in the dark, so
i have no idea if you or what that other guy said is
true...

if it helps, it's a Technics SL-DD33


 

offline napoleon from littleton on 2004-06-07 16:42 [#01227843]
Points: 75 Status: Regular



is this what we're potentially talking about?

magnetic cartridge stereo preamp


 

offline DeadEight from vancouver (Canada) on 2004-06-07 16:51 [#01227853]
Points: 5437 Status: Regular



what that other dude said is absolutely correct... if you
have your turntable hooked into an aux channel you will get
shitty, quiet sound... if the receiver has phono input it
would work fine... if not, buy yourself a preamp... if the
preamp costs more than like 100$ just buy yourself a
mixer...


 

offline napoleon from littleton on 2004-06-07 16:54 [#01227860]
Points: 75 Status: Regular



the receiver doesn't have a phono input. can i buy a
Phono-AUX convertor like he said or do i need to buy a
preamp?

thanks for everyone's help


 

offline Refund from Melbourne (Australia) on 2004-06-07 17:26 [#01227979]
Points: 7824 Status: Lurker



you can use an old stereo with a working aux port as a
preamp, just turn that stereo up full ball and plug it into
the main stereo

the difference between phono and aux (although I call it
'mic in' and 'line in') is the impedance, if you run the
output from a mic in it's going to be louder but sound
dodgier, the BEST solution is a pre-amp, so, like I said, if
you have an old stereo system use taht would be my best
advice, I got old equipment up to the whazoo all running
through preamps into a $33 mixer, which didn't even have
power for a month, (meaning only mic in would even work, so
I quickly learnt the difference) so I can safely assume that
I know my shit


 

offline Refund from Melbourne (Australia) on 2004-06-07 17:29 [#01227989]
Points: 7824 Status: Lurker | Followup to napoleon: #01227860



yeah, it's got two rca's one side and a small mic port on
the other


 

offline Refund from Melbourne (Australia) on 2004-06-07 17:35 [#01228014]
Points: 7824 Status: Lurker



also, for better sound quality you always want the volume
closest to the end of the line at it's highest, so for
instance, if you were running through a mixer you should do
as follows

source (record player)
Lowest possible volume
preamp
Lowest possible volume
mixer
(put up full ball and adjust previous two volumes until you
have it at the maximum volume you would ever need)
output (stereo system)
Highest possible volume

the reason for this is so that at no point are you
overdriving the system, otherwise quality loss ensures, keep
this in mind when installing any system with multiple run
outs

(for instance) most people who run music out of their
computer also make the mistake of settting their computer
volume right up and leading it out to their stereo which is
turned rather quiet, when they should be turning their
stereo up and their computer down


 

offline napoleon from littleton on 2004-06-07 18:15 [#01228153]
Points: 75 Status: Regular



you lost me right from the start:

"you can use an old stereo with a working aux port as a
preamp, just turn that stereo up full ball and plug it into
the main stereo"

- don't understand. i don't have a stereo and a 'main
stereo'? i just have a record player and a panasonic mini
system.



 

offline Refund from Melbourne (Australia) on 2004-06-07 18:23 [#01228175]
Points: 7824 Status: Lurker



ok here's what I meant

lets assume that you don't want to buy a pre-amp

if you have an old stereo system around that you don't use
(maybe the cd player in it stopped working or you have no
speakers for it etc... most people have at least one around
their house somewhere)

you can plug the line out from the record player into the
system's auxillery port, plug it in and turn it up to the
volume you want, and lead it out into your "panasonic mini
system" via mic port,

the old stereo would be effectively doing exactly what a
pre-amp would, and as long as you have one lying around you
don't have to go out and buy a preamp


 

offline napoleon from littleton on 2004-06-08 02:01 [#01228485]
Points: 75 Status: Regular



ohh ok i see. thanks for the explanation. sorry i'm a bit
slow.


 


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