When I use it in equalized mode there is no hum. But the output level
is too low.
So I switched mode and connected it to the phono input. Now the level
is right but there is a clear hum.

I checked the power line and nothing is plugged in backward.

Anyone have a fix?

Check to ensure that everything is grounded, especially with the phono
input. Remember that the phono input is a low level input as compared to the
others so you may be overdriving it.


"Cheesehead" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> When I use it in equalized mode there is no hum. But the output level
> is too low.
> So I switched mode and connected it to the phono input. Now the level
> is right but there is a clear hum.
>
> I checked the power line and nothing is plugged in backward.
>
> Anyone have a fix?

In article <(E-Mail Removed)>,
"Bob McDonald" <(E-Mail Removed)> wrote:

> Check to ensure that everything is grounded, especially with the phono
> input. Remember that the phono input is a low level input as compared to the
> others so you may be overdriving it.
>
>
> "Cheesehead" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
> > When I use it in equalized mode there is no hum. But the output level
> > is too low.
> > So I switched mode and connected it to the phono input. Now the level
> > is right but there is a clear hum.
> >
> > I checked the power line and nothing is plugged in backward.
> >
> > Anyone have a fix?

Also, if there is a separate ground wire from the turntable to the pre,
try with that both disconnected and connected. Some turntables are
grounded via the interconnects and a separate grounding can cause a
ground loop hum, some need the separate connection.

Greg

I've heard a number of complaints about that turntable and hum. I
believe it doesn't come with a grounding cord, but maybe somebody
could help you rig one up.

Alternatively, use the onboard equalizer, and turn up the volume. Or
perhaps try a different phono preamp, although there's no guarantee
that'll solve the problem.

bob

"Cheesehead" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)

> When I use it in equalized mode there is no hum. But the
> output level is too low.

Too low for what?

How much is it too low?

> So I switched mode and connected it to the phono input.
> Now the level is right but there is a clear hum.

The equalized output of this inexpensive turntable is not designed for
connection to a phono input.

Phono inputs are basically massive bass boosters, so of course any hum will
be magnified.

> I checked the power line and nothing is plugged in
> backward.

> Anyone have a fix?

You need something with a more sensitive, but unequalized input.

Check this source out, under "boosters"

http://www.phonopreamps.com/

On Mar 1, 9:50=A0pm, "Arny Krueger" <ar...@hotpop.com> wrote:
> "Cheesehead" <dplotusno...@yahoo.com> wrote in message
>
> news:(E-Mail Removed)
>
> > When I use it in equalized mode there is no hum. =A0But the
> > output level is too low.
>
> Too low for what?
>
> How much is it too low?
>
> > So I switched mode and connected it to the phono input.
> > Now the level is right but there is a clear hum.
>
> The equalized output of this inexpensive turntable =A0 is not designed fo=
r
> connection to a phono input.
>
> Phono inputs are basically massive bass boosters, so of course any hum wi=
ll
> be magnified.
>
> > I checked the power line and nothing is plugged in
> > backward.
> > Anyone have a fix?
>
> You need something with a more sensitive, but unequalized input.
>
> Check this source out, under "boosters"
>
> http://www.phonopreamps.com/

I guess I considered this a quality mid-range turntable rather than an
inexpensive unit. It's not like it's a BSR or BIC.

By the output level being "too low" I mean that it (a) mismatches
other components and therefore (b) does not allow a good CD burn on my
Philips CD unit.

I'm going to give it a look-over to see if there is a place where I
can find a place to attach a ground wire.

And thanks for the link. Perhaps a quality pre-amp is all I really
need.

On Mar 2, 9:13=A0am, Cheesehead <dplotusno...@yahoo.com> wrote:
> On Mar 1, 9:50=3DA0pm, "Arny Krueger" <ar...@hotpop.com> wrote:

> I guess I considered this a quality mid-range turntable rather than an
> inexpensive unit. =A0It's not like it's a BSR or BIC.

It's the next step up from the all-plastic $100 model with the fixed
cartridge that tracks at 4g. Probably equivalent to the so-called
entry-level turntables from Rega, Pro-Ject, Music Hall, etc.

> By the output level being "too low" I mean that it (a) mismatches
> other components and therefore (b) does not allow a good CD burn on my
> Philips CD unit.

But what does (a) mean, exactly? When you switch in the equalization
and connect it to a line input on your receiver/amp, can you not get
the volume level you want? Or is it just that you have to turn the
volume up higher than you do for other source components? If the
latter, that's normal.

As for (b), I presume your connection is:

turntable=3D>receiver/amp=3D>CD recorder

....and that you're connecting to the recorder through a Tape Out jack.
Does your receiver/amp also have a preamp out? If so, try using that
instead. That way, you can turn the volume up.

Otherwise, you might try either a phono preamp with higher gain, or a
booster, as Arny suggested.

bob

On Tue, 2 Mar 2010 06:13:26 -0800, Cheesehead wrote
(in article <(E-Mail Removed)>):

> On Mar 1, 9:50=A0pm, "Arny Krueger" <ar...@hotpop.com> wrote:
>> "Cheesehead" <dplotusno...@yahoo.com> wrote in message
>>
>> news:(E-Mail Removed)
>>
>>> When I use it in equalized mode there is no hum. =A0But the
>>> output level is too low.
>>
>> Too low for what?
>>
>> How much is it too low?
>>
>>> So I switched mode and connected it to the phono input.
>>> Now the level is right but there is a clear hum.
>>
>> The equalized output of this inexpensive turntable =A0 is not designed fo=
> r
>> connection to a phono input.
>>
>> Phono inputs are basically massive bass boosters, so of course any hum wi=
> ll
>> be magnified.
>>
>>> I checked the power line and nothing is plugged in
>>> backward.
>>> Anyone have a fix?
>>
>> You need something with a more sensitive, but unequalized input.
>>
>> Check this source out, under "boosters"
>>
>> http://www.phonopreamps.com/
>
> I guess I considered this a quality mid-range turntable rather than an
> inexpensive unit. It's not like it's a BSR or BIC.

What we really need to know about before anyone can be of much help is what
kind (brand and model) of phono cartridge you have. If it's a moving-magnet
type (MM) (or moving-iron) type, then you need to use the phono input because
these cartridges are purposely rather low output compared to the other,
so-called, "line-level" inputs designed for CD decks, tuners, tape players,
etc. If it's a crystal or ceramic cartridge (which I doubt-haven't seen one
of those for decades), then it would go into one of the line inputs and not
the phono input.
>
> By the output level being "too low" I mean that it (a) mismatches
> other components and therefore (b) does not allow a good CD burn on my
> Philips CD unit.

Magnetic cartridges have low outputs in relation to other components. That's
why the phono input is marked for phono only. When you plug the turntable
into the phono inputs on your amp/receiver, do you have to turn the volume up
real high in order to hear it? Is that when you get hum? IOW, does it hum
when you turn the volume to same setting on the control that gives you decent
volume and NO HUM with other components (FM, CD, Tape)?

If the answer is yes, you do have to turn the volume control up inordinately
high to get decent volume, then you might have a moving-coil (MC) cartridge.
If this is the case, your phono input probably doesn't have enough gain.
Telling us the make and model of the cartridge you are using, should give us
that information
>
> I'm going to give it a look-over to see if there is a place where I
> can find a place to attach a ground wire.
>
> And thanks for the link. Perhaps a quality pre-amp is all I really
> need..

It's possible, BUT, unless you happen to have a low-output moving-coil, it's
probably NOT your problem. With most MM or Variable Reluctance cartridges,
the built-in phono stage in your receiver or amplifier should be more than
sufficient. If you get plenty of output from your cartridge and sufficient
gain from your phono stage to give you decent volume at normal volume control
settings, then the problem you have is a grounding issue and most likely a
new phono stage would hum just as badly as the one you have now. In most
situations, you MUST have a grounding wire that goes from the tone-arm
mounting base itself to the grounding lug (usually that's a finger-screw)
located near the phono inputs on the back of your receiver/amplifier. That's
likely the problem with your hum. But really, I need more info before I can
say anything for sure.

On Mar 2, 4:20=A0pm, Audio Empire <audio_emp...@comcast.net> wrote:

> What we really need to know about before anyone can be of much help is wh=
at
> kind (brand and model) of phono cartridge you have. If it's a moving-magn=
et
> type (MM) (or moving-iron) type, then you need to use the phono input bec=
ause
> these cartridges are purposely rather low output compared to the other,
> so-called, "line-level" inputs designed for CD decks, tuners, tape player=
s,
> etc.

Perhaps you are unfamiliar with his turntable. It has a built-in
switchable phono stage, so he does NOT necessarily have to use the
phono input in his receiver. He gets a hum when he uses the receiver's
phono stage, but not when he uses the table's stage. But he's
complaining about low volume using the table's stage.

bob

On Mar 2, 4:20=A0pm, Audio Empire <audio_emp...@comcast.net> wrote:
> On Tue, 2 Mar 2010 06:13:26 -0800, Cheesehead wrote
> (in article <7v4ko6Flc...@mid.individual.net>):
>
>
>
> > On Mar 1, 9:50=3DA0pm, "Arny Krueger" <ar...@hotpop.com> wrote:
> >> "Cheesehead" <dplotusno...@yahoo.com> wrote in message
>
> >>news:(E-Mail Removed)
>
> >>> When I use it in equalized mode there is no hum. =3DA0But the
> >>> output level is too low.


[ Please trim your quotes. Excessive quotation snipped. -- dsr ]


> > And thanks for the link. =A0Perhaps a quality pre-amp is all I really
> > need..
>
> It's possible, BUT, unless you happen to have a low-output moving-coil, i=
t's
> probably NOT your problem. With most MM or Variable Reluctance cartridges=
,
> the built-in phono stage in your receiver or amplifier should be more tha=
n
> sufficient. If you get plenty of output from your cartridge and sufficien=
t
> gain from your phono stage to give you decent volume at normal volume con=
trol
> settings, then the problem you have is a grounding issue and most likely =
a
> new phono stage would hum just as badly as the one you have now. In most
> situations, you MUST have a grounding wire that goes from the tone-arm
> mounting base itself to the grounding lug (usually that's a finger-screw)
> located near the phono inputs on the back of your receiver/amplifier. Tha=
t's
> likely the problem with your hum. But really, I need more info before I c=
an
> say anything for sure.

It is a MM cartridge. It is the stock unit that came with the table.
Nothing special, but adequate.

I actually picked it up unused, at a local thrift shop for an amazing
$20.
It replaced my Dual 505-2. Though they seemed to have similar
performance,
the Denon fit my location better even though the Dual's wood was much
more attractive.
I realize it's not a Linn or similar grade, but is still much better
than the BICs
that I had in the 80s.

But I wonder if the equalization does not include the amplification
that I assume it ought.
(Or ate least ought at least by *my estimation*, anyway.)
In that case the problem can be resolved easily with a pre-amp, as
bob, et al, have noted.
But that still leaves the hum issue, though it now appears avoidable.