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Direct buttons 

Standby:

 When the preamplifier is in standby (off) mode, the LED in the middle of the button will be 

lit. Push the standby button on the touch panel to turn the unit on. When power is on, the LED in the 
middle of the button will go off and the volume indicator will illuminate. Push the button once more 
to turn the unit off. The light for the volume indicator will go out and the LED in the middle of the 
Standby button will light up. The Relentless Preamplifier defaults to Zone 1 and the Zone 1 LED will also 
illuminate upon initial turn on. 

Mute:

 The Mute control disables the preamplifier output temporarily. Press it once to mute, and again 

to restore the volume. When the sound is muted, the light in the volume indicator will flash. Mute is 
independent for each zone when Zone 2 is also active. 

Back:

 The Back button returns the remote to the previous menu screen.

Enter:

 The Enter button confirms a selection within the menu options.

Right and Left arrows:

 The arrow buttons move the cursor to the left or right within the menu or 

operating system.

Volume control:

 The red ring functions as the volume control on the remote control. Using a finger, 

circle around the ring clockwise to raise the volume and counterclockwise to lower it.

Remote Control only settings

Balance:

 The Balance control lets you shift the stereo balance to right or left. To activate it, navigate 

to the Balance button on the remote. The volume indicator on the face of the preamplifier will swing to 
show the current balance setting. Use the arrow keys or the volume ring to change the balance setting. 
If the needle points straight up, the balance is even between left and right. If the needle points to right 
or left, the balance is shifted to that side. To return the balance to the center, hold down the Balance 
button for two seconds. The meter backlight will flash to indicate the reset, and the needles will return 
to center.

Gain adjustment:

 The Relentless Preamplifier can be set for +8 dB or +14 dB gain. The extra volume 

provided by the latter setting may be needed to achieve sufficient output level with a power amplifier 
that has relatively low gain. The default setting is +8 dB. To switch to +14 dB gain, navigate to the more 
button and then the menu option that says gain and press enter. Use one of the arrow keys to toggle 
b8 and +14 dB. The numeric display will briefly show LO or HI when a gain adjustment is made.

Dark Mode: 

Dark Mode blanks out the volume control meters and LEDs after 15 seconds of 

illumination. To engage the Dark Mode, navigate to the more button, press enter and then navigate 
to the Dark Mode button. Select the desired option and press enter. The numeric display will briefly 
show DM when placed into this mode. 

Numeric display:

 The numeric volume display in the middle of the power supply chassis provides a 

precise display of volume shown in the meter displays. This display defaults to the illuminated mode. 
If desired, this display can be turned off. To change the setting, press the more button, navigate to the 
display button and select the setting to the desired option.

Network connection 

The Relentless Preamplifier needs to be connected to a router with internet connectivity using a 
wired or wireless connection to take advantage of all the features of the 

Dan D’Agostino Relentless 

Preamplifier app

. Through the app, access to your NAS-stored music files and streaming services 

including Spotify, Tidal, and Qobuz may be accessed. 

To link the Relentless Preamplifier to a network, connect the network cables from the router to the 
RJ45 connector on the back of the Relentless Preamplifier. The Dan D’Agostino App will now recognize 
the Relentless Preamplifier and provide access to all network-connected drives as well as the included 
online streaming services. We recommend using the hard-wired Ethernet connection, though it is 
not required.

For systems that do not have access to a wired connection, Wi-Fi operation is available. To connect, 
ensure the Wi-Fi antenna included in the Relentless Preamplifier shipping case is connected. 

Press and hold the Mute button on the front panel of the unit for 5 seconds or until the Relentless 
Preamplifier appears as a Wi-Fi network on your iOS device. Additionally, the numeric display will 
briefly show n, the abbreviation for network. Select this network—the 

password

 is password. Open 

the Relentless Preamplifier app and select device setup under the gear ( ) icon. Select the Relentless 
Preamplifier and then Wi-Fi Network Selection. Choose the home network, enter the password, and 
join the connected network. After entering the password for the home network, a message will appear 
on the screen, indicating pending connection to the home network. The Relentless Preamplifier will 
now appear on the Play To screen. Select the Relentless Preamplifier and music will now be sent to the 
Relentless Preamplifier for playback.

Note:

 The Network input must be selected on the Control Screen ( ) for streaming internet, cloud, 

or network music. The Relentless Preamplifier will automatically switch to the Network input when 
the play button is pressed on streaming, cloud, or network music.

Basic setup for use with Digital Streaming Module 

While you can use the Relentless Preamplifier on its own for use with analog sources, an iOS device 
is required to take advantage of the digital functionality. Download the free Dan D’Agostino app, 
Relentless Preamplifier from the Apple Store. Once the app is installed, you can launch it from the 
phone or tablet by tapping on the Dan D’Agostino Master Audio System’s icon. 

The settings page is accessed via the upper left gear icon ( ). Network, cloud, and app setup are 
available in this area. In the upper right corner is a 3-slider icon ( ) which opens the control page to 
select source inputs and additional preamplifier functions. 

Press the gear button on the upper left to access the settings page. If using a Wi-Fi connection, it will 
only be necessary to select the network and enter a password. This step is not required if using a hard-
wired Ethernet connection.

DIGITAL STREAMING MODULE (DSM)

Содержание Relentless

Страница 1: ...RELENTLESS PREAMPLIFIER ...

Страница 2: ... is also the first D Agostino preamplifier to offer an optional Digital Streaming Module DSM housed in the power supply control chassis and completely isolated from the analog circuitry As a part of the digital streaming capabilities Tidal Qobuz and Spotify subscription services are available With appropriately encoded music files MQA decoding is standard Customized apps for iOS devices provide ea...

Страница 3: ...ed if care is not taken To maintain the preamplifier s pristine surface we strongly suggesting wearing the supplied white lifting gloves when handling to avoid abrasion fingerprints caused by oils from skin etc See Maintenance for instructions on cleaning Installation requirements The Relentless Preamplifier s three metal chassis makes it much heavier than the average preamplifier Make sure the su...

Страница 4: ...nd Power Supply rear 1 XLR input jacks 2 RS 232 control connector 3 Optional Digital Streaming Module 4 Access for preamplifier control programming 5 Access for DSM programming 6 12 volt trigger outputs 7 Zone 1 XLR output jacks 8 Zone 2 XLR output jack 9 Bluetooth antenna 10 IEC power cord connector 11 Main power switch 12 Power supply DC output x 2 for future products 6 6 7 8 1 2 3 4 5 1 2 3 4 5...

Страница 5: ...ne 1 outputs is for use with subwoofers Additionally each Relentless Preamplifier audio chassis includes a Zone 2 output Please see the Zone 2 operation section of this Owner s Manual AC cord The Relentless Preamplifier is supplied with a high quality AC cord tipped with a 15 amp IEC connector at the preamplifier end and a three conductor AC plug at the other end You may use a different power cord...

Страница 6: ...mplifier is in standby off mode the LED in the middle of the button will be lit Push the button to turn the unit on When power is on the LED in the middle of the button will go off and the volume indicator will illuminate Push the button once more to turn the unit off The light for the volume indicator will go out and the LED in the middle of the Standby button will light up The Relentless Preampl...

Страница 7: ...l button that corresponds to the desired source The LED in the middle of the front panel button red for Zone 1 green for Zone 2 for the active source will illuminate Theater Bypass Input Three can be set for use as a Theater Bypass input This feature makes it easy to include the Relentless Preamplifier in a multichannel home theater audio system To set Input Three for this operation press and hold...

Страница 8: ...ired this display can be turned off To change the setting press the more button navigate to the display button and select the setting to the desired option Network connection The Relentless Preamplifier needs to be connected to a router with internet connectivity using a wired or wireless connection to take advantage of all the features of the Dan D Agostino Relentless Preamplifier app Through the...

Страница 9: ...n Labs music player software subscription required and the digital module s Windows driver JRiver software is also a good option when using Windows PC Please visit the Relentless Preamplifier product page at www dandagostino com for additional information on connecting a Windows PC to the Relentless Preamplifier and to download the required Windows driver DIGITAL INPUT SELECTION FROM THE FRONT PAN...

Страница 10: ...id scratching the preamplifier s surface If you should need to transport or ship the preamplifier be sure to use the original packing materials Allow the preamplifier to cool down for at least one hour before you wrap and package it MAINTENANCE TROUBLESHOOTING Preamplifier will not power up If the front meters are not illuminated follow the procedure outlined below If one step succeeds in activati...

Страница 11: ...connections for the malfunctioning channel Reconnect any cables that may have become disconnected Inspect the cable to make sure it has not been damaged If it has been damaged replace it 4 If you are using monoblock amplifiers such as the Relentless Amplifier make sure both amplifiers are turned on 5 Swap the left channel interconnect cable from the preamplifier to the amplifier with the right cha...

Страница 12: ...an D Agostino Master Audio Systems LLC for service the customer must first obtain a Return Authorization RA number by calling Dan D Agostino Master Audio Systems LLC The RA number must be marked clearly on the side of the package 8 This warranty covers only defects in products made by Dan D Agostino Master Audio Systems LLC It does not cover incidental or consequential damages or damages to other ...

Страница 13: ...www dandagostino com 2021 DAN D AGOSTINO MASTER AUDIO SYSTEMS LLC ALL RIGHTS RESERVED Designed handmade and assembled in the USA using USA machinists vendors and parts procurement ...

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