RCF TT 808-AS Professional Active Subwoofer Owner’s Manual
- June 4, 2024
- RCF
Table of Contents
RCF TT 808-AS Professional Active Subwoofer
SAFETY PRECAUTIONS AND GENERAL INFORMATION
The symbols used in this document give notice of important operating instructions and warnings which must be strictly followed
IMPORTANT NOTES
This manual contains important information about the correct and safe use of
the device Before connecting and using this product, please read this
instruction manual carefully and keep it on hand for future reference The
manual is to be considered an integral part of this product and must accompany
it when it changes ownership as a reference for correct installation and use
as well as for the safety precautions RCF S.p.A. will not assume any
responsibility for the incorrect installation and / or use of this product
SAFETY PRECAUTIONS
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All the precautions, in particular the safety ones, must be read with special attention, as they provide important information.
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Power supply from mains
- The mains voltage is sufficiently high to involve a risk of electrocution; install and connect this product before plugging it in.
- Before powering up, make sure that all the connections have been made correctly and the voltage of your mains corresponds to the voltage shown on the rating plate on the unit, if not, please contact your RCF dealer.
- The metallic parts of the unit are earthed through the power cable. An apparatus with CLASS I construction shall be connected to a mains socket outlet with a protective earthing connection.
- Protect the power cable from damage; make sure it is positioned in a way that it cannot be stepped on or crushed by objects.
- To prevent the risk of electric shock, never open this product: there are no parts inside that the user needs to access.
- Be careful: in the case of a product supplied by manufacturer only with POWERCON connectors and without a power cord, jointly to POWERCON connectors type NAC3FCA (power-in) and NAC3FCB (power-out), the following power cords compliant to national standard shall be used:
- EU: cord type H05VV-F 3G 3×2.5 mm2 – Standard IEC 60227-1
- JP: cord type VCTF 3×2 mm2; 15Amp/120V~ – Standard JIS C3306
- US: cord type SJT/SJTO 3×14 AWG; 15Amp/125V~ – Standard ANSI/UL 62
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Make sure that no objects or liquids can get into this product, as this may cause
- short circuit. This apparatus shall not be exposed to dripping or splashing. No objects filled with liquid, such as vases, shall be placed on this apparatus. No naked sources (such as lighted candles) should be placed on this apparatus.
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Never attempt to carry out any operations, modifications or repairs that are not expressly described in this manual.
Contact your authorized service centre or qualified personnel should any of the following occur:- The product does not function (or functions in an anomalous way).
- The power cable has been damaged.
- Objects or liquids have got in the unit.
- The product has been subject to a heavy impact.
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If this product is not used for a long period, disconnect the power cable.
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If this product begins emitting any strange odours or smoke, switch it off immediately and disconnect the power cable.
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Do not connect this product to any equipment or accessories not foreseen. For suspended installation, only use the dedicated anchoring points and do not try to hang this product by using elements that are unsuitable or not specific for this purpose. Also check the suitability of the support surface to which the product is anchored (wall, ceiling, structure, etc.), and the components used for attachment (screw anchors, screws, brackets not supplied by RCF etc.), which must guarantee the security of the system / installation over time, also considering, for example, the mechanical vibrations normally generated by transducers. To prevent the risk of falling equipment, do not stack multiple units of this product unless this possibility is specified in the user manual.
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RCF S.p.A. strongly recommends this product is only installed by professional qualified installers (or specialised firms) who can ensure correct installation and certify it according to the regulations in force. The entire audio system must comply with the current standards and regulations regarding electrical systems.
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Supports, trolleys and carts. The equipment should be only used on supports, trolleys and carts, where necessary, that are recommended by the manufacturer. The equipment / support / trolley / cart assembly must be moved with extreme caution. Sudden stops, excessive pushing force and uneven floors may cause the assembly to overturn. Never tilt the assembly.
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There are numerous mechanical and electrical factors to be considered when installing a professional audio system (in addition to those which are strictly acoustic, such as sound pressure, angles of coverage, frequency response, etc.).
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Hearing loss. Exposure to high sound levels can cause permanent hearing loss. The acoustic pressure level that leads to hearing loss is different from person to person and depends on the duration of exposure. To prevent potentially dangerous exposure to high levels of acoustic pressure, anyone who is exposed to these levels should use adequate protection devices. When a transducer capable of producing high sound levels is being used, it is therefore necessary to wear ear plugs or protective earphones. See the manual technical specifications to know the maximum sound pressure level.
OPERATING PRECAUTIONS
- Place this product far from any heat sources and always ensure an adequate air circulation around it.
- Do not overload this product for a long time.
- Never force the control elements (keys, knobs, etc.).
- Do not use solvents, alcohol, benzene or other volatile substances for cleaning the external parts of this product.
IMPORTANT NOTES
To prevent the occurrence of noise on line signal cables, use screened cables only and avoid putting them close to:
- Equipment that produces high-intensity electromagnetic fields
- Power cables
- Loudspeaker lines
WARNING! CAUTION! To prevent the risk of fire or electric shock, never
expose this product to rain or humidity.
WARNING! To prevent electric shock hazard, do not connect to mains power
supply while grille is removed
WARNING! to reduce the risk of electric shock, do not disassemble this
product unless you are qualified. Refer servicing to qualified service
personnel.
CORRECT DISPOSAL OF THIS PRODUCT
This product should be handed over to an authorized collection site for
recycling waste electrical and electronic equipment (EEE). Improper handling
of this type of waste could have a possible negative impact on the environment
and human health due to potentially hazardous substances that are generally
associated with EEE. At the same time, your cooperation in the correct
disposal of this product will contribute to the effective usage of natural
resources. For more information about where you can drop off your waste
equipment for recycling, please contact your local city office, waste
authority or your household waste disposal service.
CARE AND MAINTENANCE
To ensure a long-life service, this product should be used following these
advices:
- If the product is intended to be set up outdoors, be sure it is under cover and protected to rain and moisture.
- If the product needs to be used in a cold environment, slowly warm up the voice coils by sending a low-level signal for about 15 minutes before sending high-power signals.
- Always use a dry cloth to clean the exterior surfaces of the speaker and always do it when the power is turned off.
CAUTION: to avoid damaging the exterior finishes do not use cleaning solvents or abrasives.
WARNING! CAUTION! For powered speakers, do cleaning only when the power is turned off.
RCF S.p.A. reserves the right to make changes without prior notice to rectify any errors and / or omissions. Always refer to the latest version of the manual on www.rcf.it.
DESCRIPTION
TT 808-AS – PROFESSIONAL ACTIVE SUBWOOFER
- TT 808-AS is a compact low-profile high-performance active subwoofer. It features two vented-loaded 8” cone woofers powered by a 1000 Watts two-channel amplifier (one for each woofer) on a baltic birch plywood cabinet painted with black polyurea.
- Management and tuning are available via RDNet software or using the two preset buttons, a polarity button, and a variable delay accessible from the back panel. The cabinet features rubber feet on two sides and two threaded pole-mounts for horizontal and vertical placement.
- Two stabilizing brackets make the vertical placement stable and firm.
TT 808-AS can be used stand-alone, in subwoofer arrays, or as the low- frequency complement for TT 515-A speaker.
REAR PANEL FEATURES AND CONTROLS
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FEMALE XLR INPUTS (BAL/UNBAL) The system accepts XLR input connectors.
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MALE XLR SIGNAL OUTPUT The output XLR connector provides a loop through for speakers daisy chaining. The balanced connector is connected in parallel and can be used to send the audio signal to other amplified speakers, recorders or supplementary amplifiers.
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SYSTEM VOLUME KNOB
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SIGNAL / LIMITER LED The LED light is green when a signal is applied to the speaker. It turns RED when the speaker compressor activates.
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POWER LED This green led is ON when the speaker is connected to the main power supply.
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LINK LED This LED turns on when the speaker is connected to RDNet.
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ACTIVE LED This LED blinks when the speaker is transmitting data over RDNet.
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RDNET DATA INPUT AND DATA LINK The RDNET IN/OUT PLUG SECTION features etherCON connectors for the RCF RDNet protocol. This allows the user to completely control the speaker using the RDNet software.
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LP 90 Hz / TT 515-A When this button is released the subwoofer works with its standard subwoofer configuration (40 Hz – 90 Hz). When this button is pressed the subwoofer automatically sets its alignment with RCF TT 515-A; at the same time the button “FLAT / HIGH PASS“ on TT 515-A has to be pressed (on “HIGH PASS” mode).
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BYPASS / LOCAL SETUP When pressed, the setup is loaded from the internal memory that only RDNet can write. Every time the speaker is turned on, the last stored configuration is applied. When the button is released, the speaker uses its local setup and will not remember its last RDNet setup when turned on again.
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AC POWER INPUT Powercon locking 3-pole AC mains.
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AC OUTPUT LINK Sends the AC power to another speaker. Power link: 100-120V~16 A MAX 1600W l 200-240V~16 A MAX 3500W.
WARNING! CAUTION!- Loudspeaker connections should be only made by qualified and experienced personnel having the technical know-how or enough specific instructions (to ensure that connections are made correctly) in order to prevent any electrical danger.
- To prevent any risk of electric shock, do not connect loudspeakers when the amplifier is switched on.
- Before turning the system on, check all connections and make sure there are no accidental short circuits.
- The entire sound system shall be designed and installed in compliance with the current local laws and regulations regarding electrical systems.
CONNECTIONS
The connectors must be wired according to the standards specified by the AES (Audio Engineering Society).
BEFORE CONNECTING THE SPEAKER
- On the rear panel you will find all the controls, signal and power inputs. At first verify the voltage label applied to the rear panel (115 Volt or 230 Volt). The label indicates the right voltage. If you read a wrong voltage on the label or if you can’t find the label at all, please call your vendor or authorized RCF SERVICE CENTRE before connecting the speaker. This fast check will avoid any damage.
- In case of need of changing the voltage please call your vendor or authorized RCF SERVICE CENTRE. This operation requires the replacement of the fuse value and is reserved to an RCF SERVICE CENTRE.
BEFORE TURNING ON THE SPEAKER
You can now connect the power supply cable and the signal cable. Before
turning on the speaker make sure the volume control is at the minimum level
(even on the mixer output). It is important that the mixer is already ON
before turning on the speaker. This will avoid damages to the speaker and
noisy “bumps” due to turning on parts on the audio chain. It is a good
practice to always turn on the speakers at last and turning them off
immediately after their use. You can now turn ON the speaker and adjust the
volume control to a proper level.
PROTECTIONS
ART Series active speakers are equipped with a complete system of protection
circuits. The circuit is acting very gently on audio signal, controlling level
and maintaining distortion at acceptable level.
VOLTAGE SETUP (RESERVED TO THE RCF SERVICE CENTRE)
- 200-240 Volt, 50 Hz SETUP: FUSE VALUE T 3.15 A L 250V
- 100-120 Volt, 60 Hz SETUP: FUSE VALUE T6.3 A L 250V
INSTALLATION
The Subowoofer RCF TT 808-AS can be used either in horizontal or vertical position.
When TT 808-AS is used together with TT 515-A remeber to press both the following buttons
FLYING POINTS
TT 808-AS can be hanged horizontally or vertically; 4 x M10 flying points are
available on two sides (two each side).
Using the specific preset on RdNet, TT 808-AS can be used in cardioid configuration, either in horizontal and vertical position.
TROUBLESHOOTING
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THE SPEAKER DOESN’T TURN ON
Make sure the speaker is switched on and connected to an active AC power -
THE SPEAKER IS CONNECTED TO AN ACTIVE AC POWER BUT DOESN’T TURN ON
Make sure the power cable is intact and connected correctly. -
THE SPEAKER IS ON BUT DOESN’T MAKE ANY SOUND
Check if the signal source is sending correctly and if the signal cables are not damaged. -
THE SOUND IS DISTORTED AND THE OVERLOAD LED BLINKS FREQUENTLY
Turn down the output level of the mixer. -
THE SOUND IS VERY LOW AND HISSING
The source gain or the output level of the mixer might be too low. -
THE SOUND IS HISSING EVEN AT PROPER GAIN AND VOLUME
The source might send a low quality or noisy signal -
HUMMING OR BUZZING NOISE
Check out the AC grounding and all the equipments connected to the mixer input including cables and connectors.
WARNING! to reduce the risk of electric shock, do not disassemble this product unless you are qualified. Refer servicing to qualified service personnel.