DANLEY TH118T Tapped Horn Subwoofer Owner’s Manual

TH118T Tapped Horn Subwoofer
Owner’s Manual

TH118T Tapped Horn Subwoofer

The instructions on this page apply to Danley-powered units.

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Clean only with dry cloth.
6. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
7. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
8. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
9. The power plug at the wall must remain accessible to be able to disconnect power from the apparatus.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Unplug this apparatus during lightning storms or when unused for long periods of time.
13. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as a power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture does not operate normally or has been dropped.
14. This apparatus shall not be exposed to dripping or splashing, and no object filled with liquid, such as vases, shall be placed on the apparatus.
15. This apparatus has been designed with Class-I construction and must be connected to a main socket outlet with a protective grounding connection (the third grounding prong).
16. If the loudspeaker is exposed to changes in temperature and humidity, internal condensation may develop. If powered up with such condensation, electronic failure could result. When exposed to environmental changes, allow the loudspeaker at least 30 minutes to acclimate to a new temperature before connecting to the ac mains and operating.
17. Danley Sound Labs loudspeakers can produce sound levels capable of causing permanent hearing damage from prolonged exposure. The higher the sound level, the less exposure needed to cause such damage. Avoid prolonged exposure to the high sound levels from the loudspeaker.

Section

Your New Subwoofer

1.1 Unpacking
For most of the Danley Sound Labs line we recommend that it be unpacked by two or more people. Refer to the spec sheet for product weight. Remove tape and open top flaps. Lay the box on its side and slide the subwoofer out. Remove the packaging wrap.
1.2 Inspection
Check to make sure the product is not missing hardware of any kind. If any brackets or additional accessory hardware is missing, please don’t hesitate to contact Danley Sound Labs.
1.3 Shipping Damage
If your subwoofer appears to have been damaged in shipping, please take clear photographs and contact Danley Sound Labs immediately.

Section 2

Understanding the Difference

2.1 THE TAPPED HORN
The Danley Tapped Horn Subwoofer™ is a proprietary design that allows us to build physically small subs which are very efficient, especially at the low end of their range and are virtually linear in their passband. Subjectively the TH series produce very deep bass from generally very small boxes. They are unlike conventional horns in that combining multiple TH boxes together results in more output, but not significantly more extension.
2.2 THE DANLEY BASS HORN
The DBH subwoofer is a Danley take on a conventional design. The DBH subs feature a front-loaded, folded horn design. The DBH subs behave conventionally in that adding boxes together not only increases the output but extends the low-frequency response downward.

Section 3

Initial Set Up

3.1 What Size Amplifier to Use
Selecting the right amplifier for your subwoofer depends on a variety of factors and uses. The owner is ultimately responsible for choosing the best amplifier or amplifier for the application. We recommend choosing an amp that is rated no less than continuous and no higher than the program. Please note that “Continuous” does not mean “forever”! Most subwoofer manufacturers, including Danley Sound Labs, subscribe to the AES standards for subwoofer power ratings.
3.2 Connecting to the Tapped Horn
Your Danley subwoofer has two NL4 (“speak-on”) connectors located on a panel on the rear of the box. With the exception of the TH812, TH221, and TH412, all TH series subwoofers are wired as passive. The NL4 connectors are wired parallel.

Pinout: Passive
1+ Positive amp 1
1 – Negative amp 1
2+ Pass Through
2 – Pass Through

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3.3 Switch Modes for TH812, TH221, TH412, and DBH218
These subwoofers can be run two ways; Bi-amp or passive. In the passive mode, the connection is to pins +1 and -1. Pins +2 and -2 pass through from one NL4 to the other. In Bi-amp mode connect one amp channel to pins 1+ and 1- of the NL4 and the other channel to pins 2+ and 2-. If the four-conductor cable is not available, you may use two runs of two conductor cables.

3.4 Impedance
In the bi-amp mode, the average impedance of the woofers will be twice the passive mode.
3.5 Rigging
If you have to ask how you probably shouldn’t be doing it!
Safety Precautions
Before attempting to rig or suspend your Danley speakers, read and understand the following safety information.

IMPORTANT RIGGING SAFETY WARNING!

The information in this section has been assembled from recognized engineering data and is intended for informational purposes only. None of the information in this section should be used without first obtaining competent advice with respect to applicability to a given circumstance. None of the information presented herein is intended as a presentation or warranty on the part of Danley Sound Labs. Anyone making use of this information assumes all liability arising from such use.
All information presented herein is based upon materials and practices common to North America and may not directly apply to other countries because of different material dimensions, specifications, and/or local regulations. Users in other countries should consult with appropriate engineering and regulatory authorities for specific guidelines.
Correct use of all hardware is required for security system suspension. Careful calculations should always be performed to ensure that all components are used within their rated workload before the array is suspended. Never exceed maximum recommended load ratings.
Before suspending any speaker system always inspect all components (enclosure, rigging frames, pins, etc.) for cracks, deformations, corrosion, missing, loose or damaged parts that could reduce the strength and safety of the array. Do not suspend the speaker until the proper corrective action has been taken. Use only load-rated hardware when suspending Danley subwoofers.

Are You New to Rigging?
If you are new to rigging, you should do the following:
Know the Rules for Safe Rigging.
Attend a safe rigging seminar, such as that presented by professionals like Rigging Seminars or by Chain Motor Hoist manufacturers like Columbus McKinnon Corp. (manufacturers of the C/M Lodestar).
Meet and establish a relationship with a licensed mechanical or structural engineer. Get in the habit of asking them questions instead of guessing about their answers. Learn from what they tell you.
Meet and discuss this aspect of your business with your Insurance Agent.

• Research and understand the codes, practices, and requirements in the venues where you intend to operate your sound system.

General Hardware Information

All Danley subwoofers which are intended to be flown are provided with ⅜ inch – #16 hardware. Any hardware used in an overhead suspension application must be load rated for the intended use. Generally, this type of hardware is available only from rigging supply houses; industrial supply catalogs, and specialized rigging distributors. Local hardware stores do not usually stock these products.

Attachment to Structures
A licensed Professional Engineer must approve placement and method of attachment to structures prior to installation of any overhead object. The following performance standards should be provided to the Professional Engineer for design purposes: Uniform Building Code as applicable, Municipal Building Code as applicable, Seismic Code as applicable. Installation of hardware and method of attachment must be carried out in the manner specified by the Professional Engineer. Improper installation may result in damage, injury or death.

Rigging Hardware Inspection & Maintenance
Suspension systems are comprised of mechanical devices and, as such, they require regular inspection and routine maintenance to ensure proper function ability. Danley subwoofers must be inspected for fatigue at least annually. The inspection shall include a visual survey of all corners and load-bearing surfaces for signs of cracking, water damage, de-lamination, or any other condition that may decrease the strength of the subwoofer enclosure. Accessory rigging hardware provided with or for Danley subwoofers
must be inspected for fatigue at least annually. The inspection shall include a visual material survey for signs of corrosion, bending or any other condition that may decrease the strength of the fastener. For other fittings used, refer to the manufacturer’s inspection and maintenance guidelines for the process.
Danley Sound Labs is not responsible for the application of its products for any purpose or the misuse of this information for any purpose. Furthermore, Danley Sound Labs is not responsible for the abuse of its products caused by avoiding compliance with inspection and maintenance procedures or any other abuse. Prior to suspending the system, an expert, trained and experienced in flying subwoofer systems should inspect all rigging parts and components.

SECTION 4

Operation

4.1 Acoustic Level Warning
Danley Sound Labs subwoofers can produce sound levels capable of causing permanent hearing damage from prolonged exposure. The higher the sound level, the less exposure is needed to cause such damage. Avoid prolonged exposure to the high sound levels from the subwoofer. Some Tapped Horns are capable of levels in excess of 140 dBSPL! Levels this high can cause permanent hearing loss! When operating at these high sound pressure levels the user is strongly encouraged to use hearing protection. Danley Sound Labs accepts no liability for hearing damage from using our subwoofers!

4.2 Operator Responsibility
It is the responsibility of the operator to maintain safe operating levels and to insure that the audience is not harmed by excessive levels. This is a chart of the recommended exposure limits set by OSHA.

4.3 Aqua Tight Coating
Aqua Tight Coating includes a full two-layer fiberglass finish for maximum moisture resistance as well as a special polyurea coat bonded to the fiberglass exterior & two topcoat layers of UV-resistant color stabilizer. It also includes all stainless steel exterior fasteners, an acoustically transparent moisture barrier to the grille, waterproofing of the driver cones, and sealant for the input plate, handles or cabinet fixtures. The finish also includes a powder-coated stainless steel grille, sealed, waterproof cable leads (12’ length standard), and fully caulked all external joints (except for the “weep” opening at the bottom of the grille). If a repair is to be made on a loudspeaker with an “AT” finish, a few steps must be taken to insure the speaker remains water resistant in future usage. The caulking must be removed to free the grill and driver access panels. Once the repair is finalized, the bolts must be coated with silicon and the caulk must be replaced on all panels that have been removed.

Section 5:

Warranty on Danley Commercial Audio Products

Danley offers the following Warranty which covers products directly purchased from dealers in the 50 US States and Canada and only applies when a product has been installed and operated under normally accepted standards. Warranty Covers Product Against Defects in Material or Workmanship for 5 Years. The warranty period starts on the date of purchase from an authorized Danley dealer.

Coverage: Danley will repair or replace the product and or defective portion of said product by this warranty if it becomes defective, malfunctions, or otherwise fails to perform under normal use and service during the term of this warranty without charge for labor or materials. Repairs may be performed using new or refurbished parts that meet or exceed Danley’s specifications for new parts. If Danley elects to replace the product, the replacement may be a reconditioned unit. The buyer will be responsible for any removal or reinstallation charges and for any shipping charges if the product must be shipped for warranty service. However, Danley will pay the return shipping charges provided the destination is within the warranted area. This warranty does not cover damage, deterioration (due to corrosive environment), or malfunction resulting from accident, negligence, misuse, abuse, improper installation or operation, repair, or attempted repair by someone other than an authorized Danley service tech, any product with altered serial number, damage due to power line surge or related electrical abnormalities, improper grounding, lightning damage or acts of God, damage during shipment (claims must be presented to the carrier). This warranty only covers original end-user purchasers.

To Obtain Warranty Service: please contact your authorized dealer or sound contractor for instructions for warranty claims or contact Danley directly at
  info@danleysoundlabs.com. Products requiring shipping should be packed securely and include an explanation of the problem along with a copy of the original bill of sale. No products shipped will be accepted unless prepaid or prior agreement with Danley has been arranged. All returns must be accompanied by a Return Authorization Number. If any returned product is found ineligible, the cost of repairs will be forwarded to the owner, and the product repaired and returned to the buyer upon payment received by Danley.

Section 6:

Contact Information

Danley products are represented & sold through a network of key representatives & approved dealers in the US/Canada/ & Mexico. International sales and services are handled through our corporate office.

Danley Sound Labs – Corporate Office
2196 Hilton Drive, Suite G, Gainesville, GA. 30501
Phone (770)535 ‐0204 or (877)419 ‐5805
Fax (678)928 ‐4010
Email: info@danleysoundlabs.com

References

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