Fame Audio Discovery 18AS DSP - User Manual

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ENGLISH

Important safety instructions! Please read before connection!

DANGER! (Electrical shock due to high voltages in the device)

The housing must not be removed! There are no parts to be maintained in the device.

Inside the unit there are components which are under high electrical voltage.

Before each use, check the device for damage or the absence of components, protective

devices or housing parts. If this is the case, the device must not be used!

Leave maintenance and repair work to a qualified service workshop or contact your

dealer. In the case of a malfunction of the device, operation must also be stopped

immediately until the device has been repaired by a specialist!

DANGER! (Electric shock due to short circuit)

Modifications to the power cord or plug are prohibited. If the power cord is damaged in any

way, it must be replaced immediately with an original spare part from the manufacturer.

Always make sure that the grounding of the device is maintained. Use only the supplied

power cords and always maintain the side grounded contacts. Make sure that the sockets

used have a properly functioning protective earth.

Failure to do so may result in fire or death due to electric shock!

DANGER! (For babies and children)

Dispose of or store any packaging material properly! Packaging material must be kept out

of the reach of babies and children due to the risk of suffocation.

Ensure that children never use the appliance unattended! In addition, make sure that

children do not remove (small) parts from the device, as they could suffocate by swallowing

parts!

DANGER! (Hearing damage)

Professional speaker systems are able to generate harmful sound levels. Even the influence

of seemingly harmless sound levels over a longer period of time can lead to permanent

damage to the hearing (from approx. 95 dBA SPL).

Therefore, always wear professional hearing protection (earplugs or capsule ear protectors)

during operation!

Hint! (Fire hazard due to overheating)

The maximum permissible ambient temperature of this device is 40°C.

Ensure that the unit is placed in a well-ventilated location away from direct heat sources,

naked flames, combustible materials, and liquids. A minimum distance of 1 m is required.

Do not tape or cover the ventilation slots of the unit, or insert objects into the unit.

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User Manual37 pages

Questions and Answers

J
Justin TorresAug 6, 2025
What to do if my Fame Audio Speakers have power but no sound?
- J
  James KempAug 6, 2025
  If your Fame Audio Speakers' power LED is on but there's no sound, the speaker or XLR cables might be faulty, so replacing them may solve the issue. Also, examine the cable connections at the inputs and outputs to ensure they are properly connected.

This document provides comprehensive instructions and warnings for the safe and effective use of the Fame Audio Discovery 15AS DSP/18AS DSP, an active subwoofer designed for music and speech signals. It emphasizes safety, proper installation, and maintenance to ensure optimal performance and longevity.

Function Description

The Fame Audio Discovery 15AS DSP/18AS DSP is an active subwoofer, meaning it has a built-in amplifier. It is specifically optimized for processing music and speech signals, delivering enhanced low-frequency sound. The device incorporates Digital Signal Processing (DSP) functions, allowing users to customize various audio parameters to suit different acoustic environments and preferences. These DSP functions include main volume level adjustment, mode selection (Normal, Cardioid, Endfire), location optimization, delay effects, polarity inversion, and crossover frequency settings. The subwoofer is designed to be integrated into a larger sound system, working in conjunction with active Discovery Series speakers.

Usage Features

The device offers a range of features for flexible and precise audio control:

Setup and Connections: Before operation, all connections should be made using high-quality, undamaged, and as short as possible cables. The audio input connector supports both XLR and 6.35mm combo jack sockets, accommodating balanced and unbalanced connections. The device includes two XLR outputs for connecting to other audio equipment.

DSP Functions:

Main Volume Level: This function allows users to adjust the subwoofer's volume from MUTE to +10dB, appearing upon initialization.
Mode Selection: Users can choose from presets to optimize the subwoofer's performance based on its placement relative to the main sound system. "Normal" is for individual subwoofer use, while "Enforce" is for specific configurations before the sound system.
Location Optimization: This menu allows for optimizing subwoofer feedback when used alone or in groups. Options include:
- Normal: For individual subwoofer use.
- Cardioid: For a cardioid effect when subwoofers are used in group mode, helping to control sound dispersion.
- Endfire: For configurations with two subwoofers placed longitudinally behind each other, enhancing directional bass.
Delay Effects: A delay can be added to the subwoofer, measured in meters, to synchronize its output with other speakers in the system.
Polarity Inversion: This feature allows users to invert the polarity of the input signals, which can be crucial for phase alignment with other speakers.
X-Over (Crossover Frequency): This menu sets the upper limit of the subwoofer's frequency range. Optimal settings match the minimum frequency correctly reproduced by the active speakers, with available values including presets for Discovery Series speakers (TR15, TR12, TR10) and specific frequencies (150Hz, 120Hz, 100Hz, 80Hz, 60Hz).
Delay Unit: Users can select the unit of measurement for delay (meters or feet).
LED Settings: The front panel LED behavior can be configured:
- OFF: The LED never lights up.
- ON: The LED is constantly lit in blue.
- LIMIT: The LED lights up blue during normal operation and red when the limit is reached, indicating potential overload.
Reset: The system can be reset to factory default settings.
Info: Provides information about the current firmware version.
Exit: Returns to the main volume level setting.

Controls: The device features an LCD display for navigating DSP functions, a control dial/button for activation and selection, and a power switch. It also includes a fuse holder and a power outlet.

Portability: The subwoofer is equipped with carrying handles for easier transport and an M20 screwed flange for secure mounting.

Maintenance Features

General Maintenance:

Regular Cleaning: Ventilation grilles must be cleaned regularly to prevent dust and dirt accumulation. The unit should be switched off and disconnected from the mains supply before cleaning. Use a lint-free, damp cloth; avoid alcohol or solvents.
No User-Serviceable Parts: The device does not contain any assemblies or components that can be replaced or maintained by the user. Opening the device is prohibited due to high electrical voltage inside.
Professional Repair: All maintenance and repair work must be performed by a qualified service workshop or specialist. In case of malfunction or damage (e.g., liquid penetration, abnormal operation, physical damage), operation must cease immediately, and the device must be repaired by a specialist.
Fuse Replacement: Fuses must only be replaced with IEC127 type (5x20mm) and the correct rating by qualified personnel. Short-circuited fuses or bridging the fuse holder is forbidden.
Power Cord: Damaged power cords or plugs must be replaced immediately with original spare parts from the manufacturer. Modifications are prohibited.

Safety Checks:

Pre-Use Inspection: Before each use, check the device for damage, missing components, protective devices, or housing parts. Do not use if any issues are found.
Grounding: Always ensure the device's grounding is maintained. Use only supplied power cords and maintain side-grounded contacts. Sockets must have a properly functioning protective earth.
Environmental Conditions:
- Temperature: The maximum permissible ambient temperature is 40°C.
- Ventilation: Ensure the unit is placed in a well-ventilated location, away from direct heat sources, naked flames, combustible materials, and liquids. Maintain a minimum distance of 1m. Do not tape or cover ventilation slots or insert objects into the unit.
- Moisture: Never expose the device to direct rain, moisture, or liquids.
- Vibrations, Dust, Sunlight: Avoid exposure to these conditions as they can cause damage.
Installation Inspection: After installation, check the secure fastening of the system (bracket and loudspeaker). Operators of loudspeaker systems (stationary or mobile) are obliged to regularly inspect all system components or have them inspected according to national regulations, repairing any damage immediately. Detailed documentation of inspection measures is strongly recommended.

Storage: When not in use, store the product in its original packaging or suitable transport/storage packaging to protect it from dust and moisture.

Disposal:

Packaging: Dispose of or store packaging material properly, keeping it out of reach of babies and children due to suffocation risk. Recycle paper and plastic materials separately according to disposal instructions.
Batteries: Do not dispose of batteries with household waste. Use official collection points or disposal stations.
Device: Do not dispose of the device with household waste. It is subject to the WEEE Directive and must be disposed of by an approved waste disposal company or local waste disposal office, following country-specific regulations.