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MAKING CONNECTIONS TO

THE MOMENTUM PHONOSTAGE

Analog interconnect cables

We recommend the use of high-quality balanced XLR audio interconnect cables between your

turntable and the Momentum phonostage. However, we do recognize that many turntables do not

offer XLR output, so we have also provided RCA jacks for each input. Use high-quality balanced

XLR cables between the Momentum phonostage and your preamplifier or integrated amplifier.

If your preamp or integrated amp does not offer XLR input, please contact your D'Agostino

Master Audio Systems dealer to acquire the proper adapters.

Connect each XLR cable to the appropriate XLR jack by pushing the plug into the jack. To release

the plug, push on the small tab atop the jack or on the plug, and gently pull the plug loose. For

RCA connections, hold each plug by the barrel and push it firmly onto the connector. To remove a

plug, grasp it by the barrel and gently pull it loose. Never grasp an interconnect cable by the cable

itself—you could damage the cable. Be sure to connect left channel to left input, right channel to

right input.

Begin by connecting the turntable or tonearm to the appropriate input. If you are using a moving

coil (MC) cartridge, be sure to use one of the two MC inputs on the phonostage. If you are using a

moving magnet (MM) cartridge, use one of the two MM inputs on the phonostage. Repeat this for

any additional tonearms or turntables you are using. You can use either XLR or RCA connections,

not both. Set the switch on the back for Single-Ended if you use RCA connections, or Balance if

using XLR connections.

Connect a ground cable from each turntable or tonearm to the white binding post on the rear of

the phonostage. Many purpose-built phono cables include a ground cable. If your cables do not,

use a spare piece of speaker cable instead. As with any phono preamp, using a ground connection

between the turntable/tonearm and the phono preamp is usually beneficial, but may induce hum.

If you hear hum in your system, try disconnecting the ground connection from the turntable or

tonearm currently in use.

Now connect the phonostage's XLR outputs to any unused input on your preamp or

integrated amp.

DC cables for power supply

The Momentum phonostage is supplied with a two multiconductor DC cables. One connects the

transformer to the power regulator base, and the other connects the power regulator base to

the phonostage main chassis. Be sure to hook up both DC cables before you connect the power

supply to the AC outlet, and disconnect the AC before you remove the DC cables.

The shortest of the two DC cables is a mini-DIN type that connects the power regulator base to

the phonostage main chassis. To connect this cable, align the connections on the plug with the

pins on the chassis connector and push it gently in until it locks. To remove it, pull back on the

metal collar surrounding the plug and gently pull the plug loose.

The longer of the two cables connects the transformer (which generally sits on the floor a

few feet from the phonostage) with the power regulator base. This cable uses five-pin XLR

connectors. To connect this cable, align the holes on the plug with the pins on the chassis

connector and push it gently in until it locks. To remove the cable, press the tab on the plug and

gently pull the cable out.

AC cord

The transformer includes a high-quality AC cord tipped with a 15-amp IEC connector at the power

supply end and a three-conductor AC plug at the other end. You may use a different power cord if

you wish, as long as it is tipped with a 15-amp IEC connector and a three-conductor AC plug. After

all of the system components are connected, the phonostage transformer is connected to the

power regulator base, and the power regulator base is connected to the phonostage main chassis,

push the IEC connector on the power cord into the IEC jack on the transformer and plug the other

end into the AC socket. Do not plug the Momentum phonostage or any other Dan D'Agostino

Master Audio Systems product into a power strip or power conditioner.

OPERATION

Initial power-up

Once the connections between the transformer and the power regulator base, and between

the power regulator base and the main chassis have been made, plug the transformer into a

wall socket and flip the power switch on the transformer. The displays on the front panel of the

phonostage will illuminate.

The Momentum phonostage is designed to be left on all the time, so it is always warmed up and

will always deliver maximum performance. The phonostage will sound excellent even on a cold

start, but the sound quality will improve as it warms up, much as the flavor of a fine red wine

improves if it is allowed to breathe for a few minutes. We suggest you give it at least 30 minutes to

warm up before you do any serious listening.

Basic operation

Input selector: Turn this knob to select among inputs MC1, MC2, MM1 and MM2.

MC/MM loading adjustment: This adjusts the impedance of each input to optimize it for the

cartridge. The correct setting should be listed in the specifications for the phono cartridge, which

you can usually find on the cartridge manufacturer's website or in the manual for the cartridge.

You can also experiment with different settings; sometimes better sound can be achieved this

way. The Momentum phonostage was designed to make experimenting easy. Just change the

setting, listen and repeat until you find the one you like for that cartridge.

A separate display and controls are provided for each input. To adjust loading, press the left

button under the display to reduce the load impedance and the right button under the display to

raise it. The display will show you the load impedance in ohms. A "K" appearing after a number

on the display means "1,000," so "31K" equals 31,000 ohms. Different ranges of adjustment are

provided for MC and MM cartridges, with the ranges optimized for each type of cartridge.