Initial power-up of the amplifier
Make sure the main power switch on the back of the amplifier is in the up position. The power meter
will be illuminated in red. The standby/power button is located on the front underside edge of the
amplifier, right of the meter. Pressing the button will power up the amplifier, and the power meter
will change to green. After power is switched on, the Relentless amplifier requires approximately
30 minutes to reach optimal operating temperature. Although the amplifier will sound excellent upon
initial listening, 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.
During operation
The Relentless amplifier requires no adjustments during normal operation. If there is no sound or the
sound quality is in some way impaired, consult the “Troubleshooting” section in this manual.
Power meter setting
The Display Low/Off/Hi switch on the back of the amplifier adjusts the illumination of the meter.
Move it to the left (when looking at the amp from the rear) for low brightness and to the right for high
brightness. If the switch is in the center position, the meter light will be turned off. The Relentless
amplifier’s power meter has self-adjusting sensitivity, so it will automatically provide a setting that
delivers the most useful response for any given power level.
Maintenance
The Relentless amplifier requires no user maintenance other than to keep it clean and ensure that the
vents remain unobstructed.
To clean the amplifier, first disconnect the AC plug. Spray a small amount of distilled water onto the
supplied microfiber cloth and gently wipe the amplifier’s surface. Do not apply the water directly onto
the amplifier.
OPERATION
TROUBLESHOOTING
If you experience any issues with the operation of your Relentless monoblock amplifier,
please contact your dealer or Dan D’Agostino Master Audio Systems at
or
480.575.3069
.
RELENTLESS MONOBLOCK AMPLIFIER
LIMITED WARRANTY
Dan D’Agostino Master Audio Systems LLC warrants the Relentless monoblock amplifier against
manufacturing defects and defects in materials for five years from the date of purchase from an
authorized Dan D’Agostino Master Audio Systems dealer, subject to the conditions listed below:
1. The warranty covers only new products purchased from an authorized Dan D’Agostino
Master Audio Systems LLC dealer.
2. The warranty is non-transferable and is valid only for the original purchaser.
3. The warranty is valid only if the product has been used according to the instructions in
the owner’s manual. Damage due to accidents or owner abuse or neglect is not covered
under this warranty.
4. All service must be performed by an authorized Dan D’Agostino Master Audio Systems
dealer. Damage resulting from service by other parties is not covered under this warranty.
5. All products returned for service must be packaged in the original container and must
include a photocopy of the original purchase receipt. If the original container has been lost
or discarded, contact Dan D’Agostino Master Audio Systems LLC for a replacement.
6. If the product must be shipped back to Dan D’Agostino Master Audio Systems LLC for
warranty service, the customer shall pay shipping costs. Dan D’Agostino Master Audio
Systems LLC will pay for return shipping.
7. Before shipping the product to Dan 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
products resulting from defects in Dan D’Agostino Master Audio Systems LLC products.
9. U.S. residents: Depending on which state you live in, you may have other rights not
elaborated in this document. For further information, contact Dan D’Agostino Master
Audio Systems LLC.
10. Residents of other countries: Your authorized importer or dealer bears the direct
responsibility for warranty coverage of your amplifier. Please contact your importer
or dealer with requests for service under warranty. Dan D’Agostino Master Audio
Systems LLC will work with your importer or dealer to assure that the terms of the
warranty are fulfilled.
