| Description | | | Thanks to the powerful 18” woofer, with 3.0” voice coil, and the 1400-Watt amplifier, the SUB 708-AS II is the perfect tool to increase the low end performance of a portable PA system, both in terms of output and frequency extension. Thanks to the built-in digital stereo crossover (DSP) with adjustable crossover frequency it can be easily and quickly set up as a satellite speaker system. The SUB 708-AS II perfectly match 12” or 15” satellite speakers. The SUB 708-AS II is the ideal companion subwoofer the RCF ART 3, ART 7 or D-Line Series.
RCF subwoofers are the first choice of many sound engineers, thanks to the very high SPL levels at very low frequencies, smaller dimensions compared to the competitors, self-powered design, and impressive size/weight to SPL output ratio. Your crowd will be able to live an engaging immersive musical experience. The RCF cabinets are made of birch plywood coated with a textured black finish. The subs are stackable and light-weight, for easy set-up and tear down, thanks to the ergonomic handles. A pole receptacle allows the use of the box in various configurations. The powder coated front grille integrates a special transparent-to-sound foam backing on the inside to further protect the transducers from dust.
RCF's Class-D power amplifier technology packs huge performance operating with high efficiency into a lightweight solution. RCF amplifiers deliver an ultra-fast attack, realistic transient response, and impressive audio performance. The amplifier features a solid machined aluminium structure which not only stabilises the amplifier during transportation but also helps the fan-less heat dissipation. All the amplifiers present SMPS power supply section to produce maximum output and minimum weight. |
- For Live Stage, Theatre, DJ Setups
- Designed for Low-Frequency Extension
- Woofer: 18" with 4" Voice Coil
- Max SPL: 136 dB
- Frequency Range: 30 to 150 Hz (-10 dB)
- Class-D Amplifier: 1600W
- 2 x Combo XLR-1/4" Inputs + XLR Thru/Out
- D-XSUB LF Processing
- Cardioid Mode for Two or More Subs
|
The black SUB 8004-AS Professional Series Active Subwoofer from RCF features a high-power, hypervented 18" woofer with 4" inside/outside voice coils designed to deliver a serious amount of low frequency. Powered by a 2500W digital amplifier module, the SUB 8004-AS can perform in the most demanding situations. The input board includes volume control, deep/punch switch, high-pass switch, phase switch, cardioid, and time delay.
The sub is stackable and lightweight for easy set up and tear down, thanks to the ergonomic handles. A pole receptacle on top and side allows the use of the sub in various configurations. The powder coated front grille integrates a special transparent-to-sound foam backing on the inside to further protect the transducer from dust.
RCF's Class-D power amplifier technology packs huge performance, operating with high efficiency into a lightweight solution. RCF amplifiers deliver an ultrafast attack, realistic transient response, and impressive audio performance. The amplifier features a solid machined aluminium structure, which not only stabilises the amplifier during transportation but also helps the fan-less heat dissipation. All the amplifiers present SMPS power supply section to produce maximum output and minimum weight.
RCF developed advanced transducer technology including the application of high-tech materials such as neodymium, carbon fiber, pure titanium, kevlar, kapton, and mylar hybrids. RCF has been instrumental in technological inventions such as carbon fiber cone molding, double silicon spiders, inside/outside voice coil windings to edge wound voice coil manufacturing and pure titanium diaphragm forming.
RCF subwoofers are the first choice of many sound engineers, thanks to the very high SPL levels at very low frequencies, small dimensions compared to the competitors, self-powered design, internal delay control, cardioid configuration options and impressive size/weight to SPL output ratio.
The RCF cabinets are made of baltic birch plywood coated with a textured black finish. The subs are stackable and lightweight, for easy set up and tear down, thanks to the ergonomic handles. A pole receptacle on top and side allows the use of the box in various configurations. The powder coated front grille integrates a special transparent-to-sound foam backing on the inside to further protect the transducers from dust.
Live sound, rental, portable PA, clubs, ballrooms, live theatres, houses of worship, theme parks, music playback, and sound reinforcement in small- and mid-size venues, and corporate A/V professionals and sound system hire companies
| |
| Content | User's Manual
Data sheet
The LD Systems DDQ Sub 18 is a powerful active subwoofer with digital signal processing for demanding PA applications. It is precisely adapted for combination with the full-range speakers of the DDQ Series and is equally suitable for use with tops made by other manufacturers.
The compact bass-reflex design is loaded with an 18" FaitalPRO bass speaker that has a 4" voice coil and a neodymium magnet driven by two 700-watt Hypex Class D power amplifier modules with a highly efficient switching power supply with a total output of 1400 watts RMS. The DDQ Sub 18 attains a maximum sound-level pressure of 134 dB with a frequency response curve of 30 -120 Hz.
The Sharc DSP programmed especially for the DDQ subwoofers ensures distortion-free and reliable operation even at maximum volume levels with a 1ms look ahead limiter, frequency and phase correction, as well as all protection circuits, and has a large dynamic range of 127dB/113 dB (ADC/DAC). Seven DSP Presets permit selectable crossover frequencies between 80 and 120Hz. Eight additional presets make it possible to realize cardioid configurations of 2 or 3 subwoofers, whereby it is possible to attain rear attenuation of up to 20dB. In addition to XLR inputs and outputs, the DDQ Sub 18 has a separate mono output with a 100Hz high-pass filter. Additional features are LED function indicators and a ground lift switch; the volume and preset controls can be deactivated to prevent inadvertent adjustment.
The cabinet of the DDQ Sub 18 is made of 18mm thick multiplex with an extremely durable polyurethane finish. It is equipped with two M20 threaded flanges and ergonomic handles and is prepared for mounting of casters.
- Type: active
- Version: DSP-controlled
- Woofer size: 18“
- Woofer size: 457.2 mm
- Woofer magnet: neodymium
- Woofer brand: Faital Pro
- Woofer voice coil: 4 "
- Woofer voice coil: 76.5 mm
- Amplifier: Class D
- Power output (RMS): 2 x 700 W
- Frequency response: 30 Hz - 120 Hz
- Max. SPL (continuous): 126 dB
- Max. SPL (peak): 134 dB
- Protection: DSP-based "look ahead" limiter, RMS speaker limiter, RMS power supply limiter, short circuit, overvoltage
- Controls: Gain dB, DSP Preset, Ground Lift, DSP/Gain enable, Power
- Indicators: DSP/ Gain disable, Peak Limit, Signal, Operate
- Line inputs: 2
- Line input connectors: XLR
- Line outputs: 3 (2x Input Link, 1x Sat Out with 100Hz high-pass)
- Line output connectors: XLR
- Power supply: switching power supply
- Operating voltage: 180-264V ~ / 47-63 Hz
- Cabinet material: 18 mm plywood
- Cabinet surface: polyurethane
- Cabinet type: bass reflex
- Width: 510 mm
- Height: 700 mm
- Depth: 725 mm
- Features: 15 x DSP presets with 4 selectable cardioid setups and 7 selectable crossover frequencies (80-120Hz), 2 x threaded flange (M20), 3 x corner handles, prepared for mounting of casters
|
The new ETX Powered Loudspeakers family builds upon the industry-leading innovation and 85-year heritage of Electro-Voice audio engineering to offer the most advanced professional portable powered loudspeakers available today.
A versatile high-end choice for live entertainment venues, rental companies, pro musicians and DJs, and installed sound, the ETX Powered Loudspeakers family features three two-way models (10-inch, 12-inch and 15-inch, all with a precision HF titanium compression driver), a three-way model (15-inch with a 6.5-inch MF driver and a precision HF titanium compression driver) and two subs (15-inch and 18-inch drivers).
Positioned above the ZLX and Live X families respectively, ETX Powered Loudspeakers complete a trio of recent EV portable loudspeaker offerings-each of which was designed to bring best-in-class performance to its price point.
Inside each low-profile, tour-grade wood enclosure are a host of unique new features that set ETX Powered Loudspeakers apart, combining intelligent technology and innovative industrial design for spectacular results across all applications. EV-engineered high-efficiency transducers and high-powered Class-D amplifiers, Signal Synchronized Transducers (SST) waveguide design and smart FIR-Drive DSP all work together to provide peerless EV sound quality and precise coverage at the highest SPLs.
- 18-inch DVX woofer for extended low-frequency response
- 1800 W Class-D power amplifier with integrated FIR-Drive DSP
- 135 dB peak SPL
- Special DSP preset for true cardioid performance across the full operating bandwidth
- Combo pole cup (insert and threaded) for use with the ETX Powered Loudspeaker full range models
- Removable casters
| Frequency Range | 28 Hz - 180 Hz | | Low Pass Frequency | Adjustable: 80 Hz, 100 Hz, 120 Hz, 150 Hz | | Maximum SPL | 135 dB peak dB | | Power Consumption | 100 - 240 V~, 50 - 60 Hz, 1.6 - 0.8 A | | Power Rating | 1800 W | | Frequency Response | 33 Hz - 150 Hz | | LF Transducer | DVX3180A 457 mm (18 in) | | Connector Type | (2) XLR/TRS Combo Jack and (2) XLR link Output | | Height | 550 mm (21.65“) | | Width | 675 mm (26.57“) | | Depth | 910 mm (35.83“) | | Weight Net | 51.8 kg (114.2 lbs) | | Shipping Weight | 58.9 kg (129.85 lbs) |
|
- 1400 Watt Digital Amplifier
- 18" Woofer, bass reflex housing
- Stereo crossover
- Switchable crossover frequencies
- Phase-reverse switch
- Electronic equalization, soft limiter and protection
- Stereo XLR input, Stereo XLR signal output
- Frequency Response 35 Hz - 120 Hz
- Max Spl: 133 Db
- Hi Pass Freq: 110 Hz
| The DXS 18 achieves best in class SPL of up to 136dB and delivers the lowest frequency response (down to 32Hz) in the lineup. Housed in a sturdy band-pass enclosure, the custom built 18” driver with a large 4-inch voice coil and a Class-D amplifier delivers 1020W of power with exceptional clarity and accuracy.
- Powered reflex subwoofer
- Woofer: 18" with 4" voice coil
- Ideal for low-frequency extension to all full-range loudspeakers
- Maximum SPL: 136 dB
- Frequency range (-10 dB): 30 to 150 Hz
- High-power 1600W Class-D amplifier module
- Lightweight yet very durable plywood cabinet with premium grade Polyurea coating
- Optional speaker cover (SPCVR-DXS18X) and wheel kit (SPW-1)
- DXS XLF subwoofers are driven by 96 kHz high-power DSP processors and utilize dynamic EQ
- Onboard D-XSUB LF processing provides total low-frequency management
- Normal mode: Set for ideally balanced low-frequency response
- Boost mode: Provides a tighter and more focused bass with some extra punch
- Xtended LF mode: Drops the low-end frequencies down even further for a large bottom end
- Cardioid mode:
- Works with two or more subwoofers
- Effectively decreases the sound pressure on stage while increasing the bottom-end output directed towards the audience
- Results in a much cleaner stage monitoring environment
- DSP protection functions for maximum output and component longevity
- Active subwoofers ensure the combination of transducer and amplifier are matched and optimized for the best possible performance
- During development, Yamaha measured and tested the durability of each transducer and the overall amplifier output to set optimal limiter points using precise DSP control
- Employing many of the same protection functions used in high-end professional power amplifiers, Yamaha's DSP consistently monitors the status of the power supply, power amplifiers, transducers, and signal levels to protect each component in order to maintain optimum performance while extending component life and usability
PA Speaker
| Configuration |
Active Subwoofer |
| Enclosure Type |
Bass-Reflex Subwoofer |
| Total Power Capacity |
1600 W Peak
1200 W RMS |
| Amplifier Class |
Class-D |
Drivers
| LF Driver |
1 x 18" / 457.2 mm Woofer |
| LF Voice Coil |
4" / 101.6 mm |
| Magnet |
Ferrite |
Performance
| Frequency Range |
30 Hz to 150 Hz -10 dB |
| Maximum SPL |
136 dB |
| Max Input Level |
Line Input:
+24 dBu |
| I/O Impedance |
Input:
20 Kilohms |
Connectivity
| Audio I/O |
2 x Combo XLR-1/4" TRS Female Balanced/Unbalanced Input
2 x XLR 3-Pin Male Balanced Output |
| USB |
1 x USB-A (External Memory, Host Connection) |
Signal Processing
| Maximum Sampling Rate |
96 kHz |
Power
| AC Input Power |
Universal:
100 to 240 VAC, 50 / 60 Hz |
| AC Power I/O |
1 x IEC (Locking) |
| Power Consumption |
40 W (Idle)
180 W (1/8 Power) |
Physical
| Mounting |
1 x 1.4" / 35 mm Pole Socket (Top)
1 x M20 Pole Socket (Top) |
| Handles |
1 x Each Side |
| Cooling |
Fan (Variable Speed) |
| Construction Material |
Plywood |
| Dimensions |
21.7 x 25.9 x 28.3" / 550 x 657 x 720 mm |
| Weight |
107.8 lb / 48.9 kg |
|
| Configuration |
Active Subwoofer |
| Enclosure Type |
Subwoofer |
| Total Power Capacity |
2500 W Peak
1250 W RMS |
| Amplifier Class |
Class-D |
| HF Driver |
None |
| MF Driver |
None |
| LF Driver |
1 x 18" / 45.7 cm Woofer |
| LF Voice Coil |
Dual 4" / 10.2 cm
|
| Frequency Response |
30 Hz to 120 Hz |
| Maximum SPL |
136 dB |
| Input Sensitivity |
-2 dBu (Min)
4 dBu (Max) |
| Protections |
RMS, Thermal |
| Audio I/O |
1 x XLR 3-Pin Female Balanced Line Input
1 x XLR 3-Pin Male Balanced Line Output |
| Network I/O |
None |
| USB |
None |
| Wireless Connectivity |
None |
| EQ |
None |
| Parametric EQ |
None |
| Semi-Parametric EQ |
None |
| Filters |
Low-Pass:
90 Hz / 120 Hz |
| Dynamic Processing |
Fast Limiter |
| Alignment Delay |
None |
| Phase Adjustment |
Yes |
| Digital Signal Processing |
Delay |
| AC Input Power |
Factory Selectable:
100 to 120 VAC, 50 / 60 Hz (T 10 A H 250 V) |
| AC Power Connector |
1 x powerCON Input (Locking)
1 x powerCON Output (Locking) |
| Handles |
1 x Each Side |
| Cooling |
Convection |
| Construction Material |
Plywood |
| Certifications |
CE
*as per Manufacturer |
| Dimensions |
27.6 to 22 x 27.6" / 700 to 558 x 700 mm |
| Weight |
123 lb / 55.8 kg |
|
18” Self-Powered Extended Low-Frequency Subwoofer System with Wi-Fi
The JBL PRX818XLF is a self-powered extended low-frequency subwoofer system. Featuring a JBL 18-inch woofer powered by a 1500-watt class-D amplifier, PRX818XLF delivers incredible output in a lightweight and compact form factor.
The PRX800 series integrates embedded ioSYS technology which enables easier setup and control when used with the HARMAN Connected PA app and compatible products. Connected PA delivers seamless plug-and-play operation with a variety of HARMAN equipment and enables you to control your entire live sound system with one app. Products within the Connected PA system self-identify and retain presets for effortless setup, and setup wizards help you quickly optimize speaker levels, configuration settings and EQ. Current products with embedded ioSYS technology and HARMAN Connected PA compatibility include the Ui24R mixer, JBL PRX800 loudspeakers, dbx Di1 direct boxes, and AKG P5i microphones. Learn more about HARMAN Connected PA.
FEATURES
- Built-in Wi-Fi for wireless control of your system from anywhere in the venue
- Free PRX Connect mobile app for iOS and Android provides wireless control over volume levels, 8-band parametric EQ and up to 50ms of speaker delay to fine-tune your sound
- Class-leading 1500-watt amplifier delivers ample power to fill your venue
- JBL Differential Drive® transducers for higher SPL in a lightweight design
- Next-generation JBL neodymium compression drivers
- Redesigned Crown input technology, including XLR, 1/4” and RCA inputs plus XLR loop-through
- Intelligent variable-speed fan activates only when needed to reduce noise
- Updated tuning delivers flat frequency response and smooth off-axis behavior
- Durable wooden cabinets, tour-proven DuraFlex™ finish and dent-resistant 16-gauge grilles
- Universal power supply for worldwide compatibility
- dbx Type IV™ limiting ensures clear, accurate sound at high volumes
- Brutal testing regimen—including the famous JBL 100-hour power test—ensures reliable performance
APPLICATIONS
^
- The PRX815XLF extended low frequency subwoofer was designed and engineered to provide sub bass frequencies with accuracy and power. Used as a single sub in a sub/ sat system or in multiples as part of a scalable, large format sound reinforcement system, the PRX815XLF performs with exceptional efficiency and control. The subs are stackable and light-weight, ensuring quick set-ups and tear-downs. Due to their rugged construction, they are perfect for AV rental inventories. With the integrated stereo pass-thru this is the most powerful low-frequency complement to the PRX full-range systems. The addition of a polarity reverse option further enables system optimization. PRX800 subwoofers feature a standard M20 threaded pole cup that can accept most modern subwoofer-mounted speaker poles.
- The PRX818XLF is a high performance self-powered subwoofer system with remote Wi-Fi control of onboard DSP EQ parameters. The PRX818XLF is comprised of a powerful 2278G Differential Drive® dual voice-coil and magnetic gap, woofer driven by a 1500 Watt Class-D power amplifier. Sophisticated DSP is at the core of a fully featured input section, providing user selectable cross-over functionality, polarity optimization, protection, dynamic limiting and discrete component optimization.
- All PRX800 cabinets are built from 18 mm, strong, light-weight poplar plywood made structurally sound with tongue and groove joints. All PRX800 Series cabinets are protected by JBL’s tour proven DuraFlex™ finish. Grilles are made from dent-resistant 16 gauge steel and handles are made from light-weight glass-filled nylon for added strength and durability. All M10 suspension points are constructed from 14 gauge steel and have been tested with a yield-strength of 1000 lbs. each
- The amplifier input panel offers stereo inputs with XLR or ¼ inch jack compatibility. A user selectable crossover ensures a smooth transition to full-range system connected to the stereo outputs. Signal present and limiter lights indicate the system status and assist in setting the optimum level via the level control knob.
SPECIFICATIONS
^
|
System Type |
Self Powered 18” subwoofer |
|
Maximum SPL Output |
134 dB peak |
|
Frequency Range (-10 dB) |
30 Hz - 103 Hz |
|
Frequency Response (±3 dB) |
35 Hz – 87 Hz |
|
Input Connectors |
Two Balanced female XLR/ 1/4” combo connectors |
|
Input Impedance |
20K Ohms (balanced) |
|
Signal Indicators |
Limit: Yellow LED indicates peak output has been reached and dsp limiter is acting
Signal: Green LED indicates signal present
Power: Blue indicates system has power and ready |
|
Dynamic Control (Input) |
dbx Type IV™ limiter circuit |
|
System Low Pass |
80 Hz |
|
Loop out Crossover Frequency |
80Hz Digital 24db/octave Linkwitz-Riley Filter |
|
Design |
Highly efficient Class-D amplifier |
|
Power Rating |
1500W |
|
AC Power Input |
100V - 240V ~ 50/60 Hz |
|
LF Driver |
1 x JBL 2278G 460 mm (18 in) woofer |
|
Enclosure |
Rectangular, 18 mm, birch-poplar mix |
|
Transport |
2 x injection molded handles with backing cup |
|
Finish |
Obsidian DuraFlex™ finish |
|
Grille |
Powder coated, Obsidian, 16 gauge perforated steel with acoustical transparent black cloth backing. |
|
Dimensions (H x W x D) |
692 mm x 523 mm x 724 mm
(27.26 in x 20.6 in x 28.5 in) |
|
Net Weight |
36.28 kg (80.0 lb) |
|
Gross Weight |
45.0 kg (100.0 lb) |
|
Reviews
There are no reviews yet.