Dan D'Agostino Momentum Manuale d'uso - Pagina 7

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Gain: This adjusts the amount of amplification the phonostage will apply for each input. Different

phono cartridges provide different output levels, and this control adjusts for those differences.

Usually, the gain provided at the phonostage's default setting will be fine for any one cartridge,

but if you are using multiple tonearms or turntables, you may wish to match their levels using this

control. Just reduce the gain for the input that sounds too loud until it matches the volume from

the other input(s).

To adjust gain, first select the desired input. Now press the left button under the display to

reduce the gain and the right button under the display to raise it. The adjustments are in 1 dB

increments, so "+5" raises the level by 5 dB. Maximum settings are +/-6 dB. The gain setting will be

memorized for each input, so when you change inputs, you may see the gain setting change.

Capacitive loading adjustment: This control affects only the MM inputs, because MC inputs do

not require capacitive loading. If the cartridge manufacturer recommends an optimum capacitive

loading setting (listed in picofarads, or pF), start with that one. If the cartridge manual or

specifications do not recommend a specific load capacitance, start at the lowest setting available

(18.75 pF). Raise the setting if you hear noise or interference from other electronic devices in your

home. You will notice that the capacitive loading setting will affect the sound. Let your ears be

your guide here—just experiment with the adjustment until you get the best result.

To adjust capacitive loading, press the left button under the display to reduce the capacitance

and the right button under the display to raise it.

EQ curve selector: Turn this knob to select the EQ curve appropriate for the vinyl record you

are playing. Almost all records pressed since the mid-1950s use the R.I.A.A curve, but some

records made before about 1960 use other curves, such as F.F.R.R., RCA Orthophonic, Columbia

and D.G.G. If you are playing a record pressed before 1960, check the sleeve to see what EQ

curve is recommended. If in doubt, use R.I.A.A.

Maintenance

The Momentum phonostage requires no user maintenance other than to keep it clean and ensure

that the vents remain unobstructed.

Like a piece of fine furniture, the Momentum phonostage has a fine, highly polished finish that can

be easily damaged. Do not rub or polish the finish, and do not allow objects to come in contact

with it. To clean the surface, spray a small amount of distilled water onto the supplied microfiber

cloth and gently wipe it along the direction of the metal grain, with light pressure only. Never use

a circular motion or heavy pressure, as this can permanently scratch the machined surfaces. Do

not rub the surface with the cloth, and do not spray any liquid directly onto the phonostage.

If dust or other contaminants or objects collect around the vents at the top and bottom of the

phonostage, remove small objects by hand and use a shop vacuum or hand vacuum to remove the

dust. Use a brush attachment on the vacuum to avoid scratching the phonostage's surface.

If you should need to transport or ship the phonostage, be sure to use the original packing

materials. Allow the phonostage, the power regulator base and the transformer to cool down for

at least six hours before you wrap or package them.

TROUBLESHOOTING

Power is not on

If the front displays are not illuminated, follow the procedure outlined below. If one step

succeeds in activating the power, stop there and ignore the other steps. Do not make any

adjustments to the DC power cables while the AC power is plugged into the wall.

Check at the back of the transformer to make sure the 15-amp IEC connector is

pushed all the way into the jack on the power supply, and that the AC cord is plugged

into the wall.

Check to make sure the DC power cable between the transformer and the power

regulator base is firmly connected. If it is not, disconnect the AC cord from the wall

socket, reconnect the DC power cable, and plug the AC cord back in.

Check to make sure the DC power cable between the power regulator base and the

phonostage main chassis is firmly connected. If it is not, disconnect the AC cord from

the wall socket, reconnect the DC power cable, and plug the AC cord back in.

Pull out the fuse connector at the back of the transformer, between the power switch

and the IEC power cord connector. Check to see if the fuse is blown. (The conductor

inside the fuse will be severed and you may see burn marks on the fuse.) Be sure to

replace the fuse with one of the proper value and type. Consult your dealer or

Dan D'Agostino Master Audio Systems.

Check your household electrical box to make sure the circuit breaker has not

been tripped. If it has, flip the breaker back on.

If all of these steps fail to return power to the Momentum phonostage, consult your

dealer for service.

Front displays are illuminated but you hear no sound

Follow these steps in order. If one step succeeds in restoring the sound, stop there and

ignore the other steps.

Make sure you have the correct input selected on the phonostage.

Make sure the tonearm is lowered and the record is spinning.

Make sure the volume is turned up on your preamp or integrated amp, and if you are

using a separate amplifier, make sure it is powered up.

Check the Single-Ended/Balance switch on the back of the phonostage. If you are using

XLR connections, the switch should be set to Balance. If you are using RCA connections,

the switch should be set to Single-Ended.

Switch to a different source on your preamp or integrated amp and start that source

playing. If you hear sound, it's possible the cables connecting the phonostage to the

other components have become disconnected. (If you don't hear sound, it's likely

something else is wrong with your system; check the connections between your preamp