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Summary of Contents for Monoprice Monolith
- Page 1 Monolith™ by Monoprice Desktop Headphone Amplifier and DAC with THX® AAA Technology (Dual AKM 4493 DACs & Dual AAA-788 Modules) P/N 24459 User's Manual...
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Page 2: Table Of Contents
CONTENTS SAFETY WARNINGS AND GUIDELINES ............................3 FEATURES ..........................................4 CUSTOMER SERVICE ....................................5 PACKAGE CONTENTS ....................................5 PRODUCT OVERVIEW ....................................6 Front Panel ........................................6 Rear Panel ........................................6 Display ..........................................7 CONNECTIONS........................................7 Headphones Output ..................................... 7 Pre-Amplifier Output .................................... 8 Analog RCA Input .................................... -
Page 3: Safety Warnings And Guidelines
DIRAC SENSAROUND® ..................................... 18 SETTINGS ..........................................19 USAGE NOTES ........................................ 20 SPECIFICATIONS ......................................21 TECHNICAL SUPPORT ....................................22 SAFETY WARNINGS AND GUIDELINES Please read this entire manual before using this device, paying extra attention to these safety warnings and guidelines. Please keep this manual in a safe place for future reference. ... -
Page 4: Features
Unplug this device from the power source when not in use. Take care to prevent damage to the power cord. Do not allow it to become crimped, pinched, walked on, or become tangled with other cords. Ensure that the power cord does not present a tripping hazard. -
Page 5: Customer Service
If you have any problem with your order, please give us an opportunity to make it right. You can contact a Monoprice Customer Service representative through the Live Chat link on our website www.monoprice.com during normal business hours (Mon-Fri: 5am-7pm PT, Sat-Sun: 9am-... -
Page 6: Product Overview
PRODUCT OVERVIEW Front Panel 1. XLR Balanced Headphone Output 4. Menu Button 2. 1/4" (6.35mm) Unbalanced 5. Value Knob Headphone Output 6. Enter Button 3. Display Rear Panel 1. DC Power Jack 6. XLR Balanced Right Channel Analog Audio Input 2. -
Page 7: Display
1/4" (6.35mm) TRS plug or a balanced 4-pin XLR connector. If your headphones use a 3.5mm TRS plug, you will need a 3.5mm-to-1/4" adapter, such as the Monoprice 7139 adapter (available separately). You cannot use both the balanced XLR and unbalanced 1/4" TRS headphone outputs at the same time. -
Page 8: Pre-Amplifier Output
The following diagram shows the pin-out assignment for the Balanced Headphone Output. Note that pins 2 (L-) and 4 (R-) are individual signal pins and cannot be tied together as the ground pin for a single-ended headphone. Never use any adapter to connect the Balanced Headphone Output to a single-ended headphone. -
Page 9: Analog Rca Input
Analog RCA Input You can connect an analog audio source device to the RCA Unbalanced Analog Audio Input using a pair of RCA cables (available separately). Digital Coaxial Input You can connect a digital audio source device to the Coaxial Digital Audio Input using a digital coaxial cable (available separately). -
Page 10: Digital Optical Input
Digital Optical Input You can connect a digital audio source device to the Optical Digital Audio Input using an optical cable, also known as a TOSLINK® cable (available separately). The digital signal will be converted by the internal DAC and sent to the analog headphone and pre-amplifier outputs. -
Page 11: Digital Usb Input
Power Momentarily press the Menu Button on the front panel to turn the amplifier on. While the unit is powering on, the Monolith™ logo will display. When it is fully ready for use, the Home Screen will display. Press and hold the Menu Button until the display scrolls off to turn the amplifier off. -
Page 12: Volume Control
3. Once the desired input is displayed, momentarily press the Enter Button to select it. The Display will revert back to the Home Screen with the selected input visible in the top right corner. The input options include RCA LINE, XLR LINE, OPTICAL, COAXIAL, AES3, and USB. -
Page 13: Eq Menu
EQ MENU The EQ Menu allows you to set the parameters for the Shelf EQ and up to five Parametric EQs (PEQs). Shelf EQ The Shelf EQ is the equivalent of the Bass and Treble controls on a conventional amplifier, but with more control over the amount of gain and the specific frequencies. -
Page 14: Peq
11. Momentarily press the Enter Button. The Display will cycle back to show SHELF EQ [1/4] with the pointer to the left of the LF GAIN label. 12. Momentarily press the Menu Button three times to return to the Home Screen. Alternatively, wait about 30 seconds and the Display will automatically return to the Home Screen. - Page 15 6. Momentarily press the Enter Button. The Display will show PEQ 1 [2/4] with the pointer to the left of the FREQ label. 7. Rotate the Value Knob clockwise or counterclockwise to increase or decrease the FREQ value in the range 50Hz to 15kHz. The FREQ value can be adjusted in 1Hz increments above 50Hz, 10Hz increments above 100Hz, and 0.1kHz increments above 1kHz.
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Page 16: Drc
Dynamic Range Compensation is used to reduce the amount of difference between the quietest and loudest portions of the audio signal. This is generally perceived negatively by audiophiles and, because Monolith™ by Monoprice products are true audiophile products, the feature is disabled by default. - Page 17 5. Momentarily press the Enter Button. The Display will show DRC [2/4] with the pointer to the left of the THRESHOLD label. 6. Rotate the Value Knob clockwise or counterclockwise to increase or decrease the THRESHOLD value from -32dB to -2dB in 1.0dB increments. 7.
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Page 18: Dirac Sensaround
DIRAC SENSAROUND® Music is usually mixed with loudspeakers in mind, not headphones. As a result, headphone listening is often plagued by a distorted soundstage—instruments and voices may seem incorrectly placed and trapped inside your head, causing an unnatural listening experience that can result in listener fatigue. -
Page 19: Settings
SETTINGS The Settings Menu allows you to control various aspects of the Desktop Headphone Amplifier's performance. You can control the following factors. EQ Disable: Rather than adjust your individual EQ settings, you can globally enable or disable all EQ values with this setting. The possible options are ON (EQ disabled) or OFF (EQ enabled). -
Page 20: Usage Notes
5. Momentarily press the Enter Button. The Display will show OUTPUT MODE [2/6]. 6. Rotate the Value Knob clockwise or counterclockwise to set the OUTPUT MODE value to LINE or HP (headphones). 7. Momentarily press the Enter Button. The Display will show DAC FILTER [3/6]. 8. -
Page 21: Specifications
SPECIFICATIONS Model 24459 Analog Inputs 1x unbalanced RCA, 1x unbalanced XLR Digital Inputs 1x Optical, 1x Coaxial, 1x AES/EBU, 1x USB Playable Frequency Response 1Hz ~ 40kHz ±0.5dB (96kHz input) Signal-to-Noise Ratio (A-Weighted) > 120dB Dynamic Range > 120dB Total Harmonic Distortion <... -
Page 22: Technical Support
TECHNICAL SUPPORT Monoprice is pleased to provide free, live, online technical support to assist you with any questions you may have about installation, setup, troubleshooting, or product recommendations. If you ever need assistance with your new product, please come online to talk to one of our friendly and knowledgeable Tech Support Associates.
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