HARMAN International
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Installation Guide for JBL models including: GSB12 In Ground Landscape Subwoofers, GSB12, In Ground Landscape Subwoofers, Landscape Subwoofers, Subwoofers
JBL GSB12 (Green) Weatherproof in-ground 12" subwoofer at Crutchfield
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DocumentDocumentInstallation Guide GSB8 & GSB12 In-Ground Landscape Subwoofers CAUTION: Installation must be done by qualified persons using safe installation standards. The installer is responsible for proper selection and use of hardware and to install the speakers in a safe and durable manner. PORT CAP PORT CABINET HANDLES (x2) CABLE BASE PLATE with 4 x EDGE TABS Wire Connection · CABLE-- The GSB speakers come with a captive multi-conductor 1-meter-long cable with bare-wire ends for connection via an external installer-provided weather-proof junction box. o Connection Method Use professional wire nuts or other safe, long-term connectors that are appropriate for the installation conditions and that are sized properly for wire gauge(s) and for the number of wires to be connected together in the connector. · Important: Cut off all unused wires in a way that ensures that none of them will short to any of the other wires. · Code Requirements -- Typical wiring entails protected connections inside installer-provided water- proof junction box, with cable entering junction box via water-tight fitting that is sized appropriately for wire jacket diameter (see below). However, always wire in accordance with code requirements. o Color Connection Code · Low-Impedance (6, for GSB8 and GSB12) · Black = Negative (-) and Red = Positive (+) · High-Impedance (70V or 100V distributed systems): Wiring Charts: GSB8 Cable Wire Color Blue For Low-Z Input (6) N/C Black From Amp (negative) Black with White Stripe N/C Gray N/C Green N/C Yellow N/C Red From Amp + (positive) N/C = No Connection. Cut, insulate and tie For High-Z (70V/100V) Connect Blue and Black in Parallel From Amp (negative) 25W @ 70V; 50W @100V 50W @ 70V; 100W @ 100V 100W @ 70V, N/C @ 100V N/C GSB12 Cable Wire Color Blue For Low-Z Input (6) N/C Black From Amp (negative) Black with White Stripe N/C Gray N/C Green N/C Yellow N/C Red From Amp + (positive) N/C = No Connection. Cut, insulate and tie For High-Z (70V/100V) Connect Blue and Black in Parallel From Amp (negative) 50W @ 70V; 100W @100V 100W @ 70V; 200W @ 100V 200W @ 70V, N/C @ 100V N/C Instructions: o o o o For high-impedance systems (70V/100V), tie together Blue and Black and insulate this connection. Common (negative from amplifier) = Black with white stripe GSB8 -- Positive (positive from amplifier): Gray = 25W @ 70V or 50W @ 100V Green = 50W @ 70V or 100W @100V Yellow = 100W @ 70V (N/C at 100V) GSB12 -- Positive (positive from amplifier): Gray = 50W @ 70V or 100W @ 100V Green = 100W @ 70V or 200W @100V Yellow = 200W @ 70V (N/C at 100V) o Wire Gauge The wire gauge is 14 AWG (approx. 1.6 mm2), UL1569. The cable jacket diameter is 11 mm (0.43 in.). BASE PLATE · The GSB subwoofer can be installed either with or without the included BASE PLATE. Even though the speaker typically gets installed into the ground, the BASE PLATE provides additional EDGE TABS that can provide added security and stability. The tabs make it more difficult to pull the subwoofer out of the ground. In addition, the 8.5 mm (0.32 in) diameter holes in each EDGE TAB can be used for bolts or stakes to further secure the subwoofer in place (for example, securing via bolts onto a concrete block that may get installed below the subwoofer). · Installation Onto a Deck While installation into the ground is the most typical installation method for this subwoofer, it can be mounted onto a deck or other horizontal surface by attaching the BASE PLATE to the bottom of the CABINET and using the holes in each EDGE TAB for securing hardware. · To attach the BASE, use the included 8 pcs of 4 mm x 20 mm flat-head Phillips-drive bolts (SUS304 material) through the base and into the 8 threaded inserts located on the bottom of the cabinet. 8 BOLTS: 4 mm x 20 mm Flat-Head Phillips Installation into the Ground E [Above-Ground Extension to Bottom of PORT CAP min 100 mm (4 in.)] D [Depth] W [Width] · Location -- Locate the subwoofer in an area that will not flood with standing water, and where there is good drainage. · Above Ground Extension Height [E] Plan for an Extension [E] above ground level (from ground to bottom of PORT CAP) a minimum of 10 cm (4 in.). Increase as needed for conditions (greater, for example, may be appropriate in areas where deep snow occurs). · Dig the Hole - The following guidelines provide approximately 76 mm (3 in.) clearance on sides and bottom of cabinet and are based on 100 mm (4 in.) of above-ground extension [E]. Adjust as required for any different desired clearance. o Hole for GSB8: Width [W] = 465 mm (18.3 in.) Depth [D] = 630 mm (24.8 in.) o Holes for GSB12: Width [W] = 560 mm (22.1 in.) Depth [D] = 660 mm (26.0 in.) o May need extra width or depth if, for example, attaching to a concrete block located below the subwoofer or if extra width clearance is needed. · Plan for Running Cable Plan cable run and wire connection location to be in accordance with regulatory codes. Do not bend cable tightly where it exits the cabinet (at the gland nut) use a loose radius. In many regions, it is typical to dig a 100 to 150 mm (4 to 6 in.) deep trench for routing the speaker wire to installer-provided waterproof junction box, but code may require a different configuration, and areas with active landscaping activity may want to utilize a more robust damage-resistant method. · Bed Preparation -- Prepare a bed for the bottom of the subwoofer that is reasonably free of voids and has good drainage. Utilize garden drainage principles such as gravel below the subwoofer to eliminate excessive buildup of standing water. · Optional Liner While the subwoofer is highly water resistant, the installer is encouraged to install an additional waterproof liner, which can further protect the subwoofer cabinet from groundwater, if the installation location warrants. · Place Subwoofer into the Ground Two recessed HANDLES on the sides of the subwoofer cabinet can be used for lowering the subwoofer into the ground. Route the cable. · Adjust Depth -- Fine tune the enclosure depth as required so that the subwoofer is level and the bottom of the PORT CAP is a minimum of 100 mm (4 in) above the finished grade after backfill (higher if circumstances warrant). · Connect Wiring -- Make wiring connections per to Wire Connection section, above. · Backfill -- Backfill around the subwoofer. Ensure that optional liner (if utilized) does not rattle. It is often advisable to let the backfill settle for a few days and then re-tighten the backfill around the speaker. Ensure that subwoofer is physically stable. Ingress Protection (IP) Rating · Overall -- The overall Ingress Protection rating of the installed GSB subwoofer speaker (as described above) is IP66. · Bottom Cabinet The rating of the bottom cabinet portion of the GSB subwoofer up to the middle of the PORT is IP68. Applications Tips · GSF/GSB Ratios -- The GSB subwoofers can be utilized with a wide variety of full-range or mid-high satellite loudspeakers. When installed as subwoofer-satellite systems along with GSF satellite speakers, the following ratios tend to be well-balanced (based on utilizing each speaker at their top tap setting). Other ratios can work well, depending on circumstances. System tonal balance can be adjusted via changing tap settings (reducing the volume of the portions that are too loud), as well as via amplifier volume settings when driving the subwoofer and satellites from different amplifier channels. · Potential Frequency Overlap Bump -- The GSB speakers have a built-in low-pass filter, but most satellite speakers (especially full-range speakers) do not. Depending on the frequency response and sensitivity of the selected satellite speakers (and many other factors, including distances/spacing, ground material, acoustic boundaries and barriers, and other factors), there can be an undesirable overlap bump in the frequency response (where both the subwoofer and satellites are functioning, effectively increasing sensitivity in the overlap frequency range). If the 70 to 120 Hz frequency band ie, the most common potential overlap frequency band -- is too strong, it can cause the perception of too much or unpleasant high bass (instead of a nice, flat, high-fidelity extended bass response). When both the subwoofer and satellites are being driven from the same amplifier channel, any overlap bump needs to be reduced via equalization (EQ). When subwoofer and satellites are being driven from different amplifier channels, in addition to EQ, addition tools for reducing the bump may include crossover frequencies, crossover slopes, or the volume balanced between the amplifier channels (depending on the DSP functions that are available in the amplifier). CONTACT INFORMATION Harman Professional Headquarters 8500 Balboa Blvd. Northridge, CA 91329 USA +1 (800) 852-5776 www.jblpro.com Worldwide Customer Service Monday - Friday 8:00am - 5:00pm PCT +1 (800) 8JBLPRO (800-852-5776) support@jblpro.com www.JBLservice.com HARMAN USA Technical Support Monday - Friday 8:00am - 5:00pm +1 [844] 776-4899 hprotechsupportusa@harman.com www.harman.com Harman Professional London Harman Westside Hemel Hempstead, HP3 9TD London, UK +44 (0)1707 668034 www.harman.com Harman Professional Singapore 108 Pasir Panjang Road #02-08 Golden Agri Plaza Singapore 118535 +65 6870-5000 www.harman.com Harman Professional Shenzhen 20F, China Merchants Port Plaza, #1 Gongye 3rd Road, Shekou, Nanshan Dist. Shenzhen, 518067, China +86 755 8634 3702 www.harman.com Harman Professional India Prestige Technology Park Jupiter 2A Block, 4th Floor Marathahalli Ring Road Bangalore 560103, India +918049365905 www.harman.com Professional Contacts, Outside the USA: Contact the JBL Professional Distributor in your area. A complete list of JBL Professional international distributors is provided at our U.S.A. website: www.jblpro.com JBL Professional 8500 Balboa Blvd. Northridge, CA 91329 GSB Guide, Rev A 12-2022 GSB12 12" In-Ground Subwoofer HIGHLIGHTS 6 The JBL GSB12 in-ground 12-inch landscape subwoofer augments the lowfrequency performance of JBL GSF full-range landscape speakers to provide rich, full-range sound in lawn and garden areas of hospitality, corporate and retail spaces. The GSB12 focuses on fidelity, with true subwoofer extension down to 30 Hz and a steep, multiple-slope lowpass filter for superior sound. Its premiumgrade, 200-watt subwoofer-band transformer allows use in 70V/100V systems or can be connected for low-impedance direct operation. This sleek, ultra-low-profile speaker--winner of international design awards for industrial design excellence and installs underground, with only the audio port visible. It's designed to withstand the elements: Its chamber is oriented directly below the audio port to prevent accidental damage from landscaping, which can be a problem with side-located chambers. Grab handles allow easy installation and tabs secure the subwoofer to blocks or anchors. Add the GSB12 to landscape areas of hotels, shopping complexes, restaurants, public spaces, theme parks or any application that demands legendary JBL sound with deep, rich, powerful bass. FEATURES 6 Transducer: 305 mm (12") polypropylene driver, 50mm (1.5") voice coil on Kapton former True subwoofer performance down to 30 Hz 450 W Power Handling (continuous pink noise, 2 hrs) Built-in steep, multiple-slope lowpass filter Low-impedance direct operation, plus premium-grade subwoofer-band transformer for use in 70V/100V systems Forms a complete system with JBL GSF full-range landscape speakers Chamber oriented directly below opening to prevent accidental damage from landscaping Grab handles allow easy installation Anchor points for securing cabinet to block or anchors Available in Hunter Green or Tan finishes to fit a wide variety of landscapes Dimensions: 402 x 866 mm (16 x 34 in) (Diameter x H) www.jblpro.com SPECIFICATIONS 6 SYSTEM Frequency Range1 (-10 dB): Frequency Response1 (±3 dB): Power Rating2: Maximum Input Voltage: Sensitivity3: Nominal Coverage Angle: Rated Maximum SPL4: Nominal Impedance: Minimum Impedance: Transformer Taps: Insertion Loss: Thru Setting: Crossover Type: Recommended Protective High-Pass: TRANSDUCER Driver: PHYSICAL Enclosure Material: Grille: Environmental: Agency Ratings: Terminals: Dimension (H X D): Net Weight: Shipping Weight: Included Accessories: Colors: 30 Hz 120 Hz 39 Hz 107 Hz 900 W Continuous Program (2 hrs) 450 W (1800 W Peak), Continuous Pink Noise (2 hrs) 300 W (1200 W Peak), Continuous Pink Noise (100 hrs) 45 V (based on 2 hr Continuous Pink Noise rating) 85.5 dB (ave. 40 Hz 105 Hz) 360° horizontal, 160° vertical (primary listening 10° to 50° up from ground). 118 dB peak (112 dB continuous, 2 hr) @ 1m 6 (at 6 tap) 4.8 at 43Hz 70V: 200 W, 100 W, 50 W 100V: 200 W, 100 W <0.5 dB at any tap setting 6 nominal 2nd order 27 Hz for 6 operation and for all tap settings, 24 dB/oct 305 mm (12-inch) driver, polypropylene injection cone, thermoplastic vulcanizate surround, 50 mm (2-inch voice coil on KaptonTM former). LDPE Polyethylene plastic, 6 mm minimum wall thickness, color throughout. Aluminum IP-66 rating per IEC529 (dust protected and protected against strong jets of water). Exceeds MilSpec 810 for humidity, salt spray, temperature, & UV. Passes Mil-Std-202F for salt spray. Transformer UL Recognized per UL1876, ROHS compliant. Bare wire with dielectric-gel-filled wire nuts (1 meter single jacked cable 7 wires with 14 AWG) 842 x 400 mm (33.2 x 15.8 in) 16.2 kg (35.7 lbs) 19.5 kg [43.0 lbs) per carton (1 speaker per carton] (7) wire nuts Pine Green RAL 6028, or Beige Grey RAL 7006 1 Half-space, 2 loading (in-ground recessed). 2 Continuous Pink Noise rating is IEC spectrum, with 6 dB crest factor. Continuous program power is defined as 3 dB above the Continuous Pink Noise Rating. In 6 ohm mode. 3 Half-space, 2 loading (in-ground recessed), 360° horizontal, vertical averaged 10 to 50 degrees from ground. 4 6 ohm mode, calculated from sensitivity and power handling, exclusive of power compression. JBL continually engages in research related to product improvement. Some materials, production methods, and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated. GSB12 12" In-Ground Subwoofer Frequency Response: In half-space (2, in-ground). Impedance: Dimensional Drawing: 400mm [15.8in] 400mm [15.8in] 842mm [33.2 in] 155mm [6.1in] 452mm [17.8in] 236mm [9.3in] HARMAN Professional 8500 Balboa Blvd. Northridge, CA 91329 USA © 2023 HARMAN International Industries, Incorporated. All rights reserved. Features, specifications and appearance are subject to change without notice. www.jblpro.com Issued: 7/2023