Origin-live PHONO STAGE User Manual download pdf (Page 2)

Page 2

to the rear panel binding post labelled with the earth symbol

as in the rear panel illustration. If your arm does not have a

separate ground wire, it may be advisable to run a separate wire

from a metallic point on the arm to this terminal. Cartridges

are very sensitive to hum and grounding can help lower this

- if you look at our web site under “support” then “technical

support” then “tonearms”, there is a lengthy section on how to

solve hum problems.

Connecting to your amplification

Both balanced (XLR) and unbalanced (RCA) outputs are

available and can be used either separately or together for a

dual feed if you like. Do not connect the phono outputs into a

phono input on your ampliﬁer or it will overload the amp and

can cause damage. Instead, connect the phono stage output

interconnects to any high level input on your amp, such as

CD, Tuner, aux, tape inputs etc.

Once the Phono Stage has been connected to both the

turntable and pre-amp or integrated ampliﬁer, reduce the

volume setting to zero and plug in the phono stage power

supply to the mains.

Changing the gain setting switch on the phono stage can send

thumps through the system, so it is best to always reduce your

amp volume setting to zero when changing this setting.

Depending on the type of cartridge you are using, moving

coil or moving magnet, set the gain and impedance settings as

follows.

Moving magnet cartridge settings

For all moving magnet cartridges and high output moving coils

set Resistance to 47K, Capacitance to 0, Gain to MM high. This

usually delivers best performance but occasionally gain set at “MM

low” can be used for ampliﬁers that are easily overloaded on their

inputs. Always reduce volume to zero when switching gain and then

re-adjust the volume.

Moving coil cartridge settings

For moving coil cartridges it is best to set the variable switches

by listening to the results of different settings - the following

comments should prove helpful

Resistance - Many moving coil cartridges sound best with

Resistance at 10 ohms however you should also try 33, 100 &

470. Increasing resistance can tend to give a harder sound and

increased sensitivity (i.e. volume).

Raising the resistance increases the high frequency output

of the coil. Many moving coil cartridges will sound bright

at the higher resistance settings and so require either a lower

resistance setting or careful adjustment of the VTA (vertical

tracking angle) of the turntable to reduce the brightness.

Lowering the base of the arm tends to produce a less bright

sound.

Capacitance - Most moving coil cartridges sound best with

capacitance at 47nF however you can try 100pF, 330pF &

1nF.

Gain - Moving coil cartridges have differing outputs - there

is no “right” setting for gain as it is a balancing act between

cartridge output and your amp quality. The optimum setting

will only be arrived at by listening. When doing comparisons

always make sure you adjust your amp volume such that

the speaker volume is the same in all listening comparisons.

You need to adjust this as the volume will increase as the

gain setting is increased towards the MC high setting. In

our estimation it is usually best to use the MC high setting

as this gives you the maximum beneﬁt of the high quality

ampliﬁcation in the phono stage.

If the sound is occasionally strained or distorted on loud peaks,

it is likely you have selected too much gain.

The bass setting switch

The bass gain can be adjusted slightly to cater for various room

acoustics. The zero setting gives a ﬂat output response from the

phono stage. The minus ﬁgures reduce bass output and the positive

ﬁgures increase it. The best setting for your room can be arrived at as

usual by careful listening at the various settings.

Once again, thank you for choosing Origin Live and we wish you

many hours of enjoyable listening.

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Origin-live PHONO STAGE User Manual Page 2

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