Page 2
Product Servicing the appliance. If your system fails to operate properly, please contact HTD Grounding or Polarization directly for further assistance, at 1-866-483-2834. Precautions should be taken so that the grounding or polariza- Additional information, including detailed specifications for each tion means of an appliance is not defeated.
UL Class 3 approved cable (marked “CL3”) for compliance with local building codes. Consider using HTD cable for all of your home theater and whole-house audio installations. HTD cable offers exceptional performance, and of course, is priced significantly lower than retail.
Product Features SDA-120 Features Level Knob Phase Switch Power Button Subwoofer Digital Amplifier SDA-120 80Hz 40Hz 120Hz CROSSOVER LEVEL Power Indicator Light Amplifier Protection Light Crossover Control Knob 5-way Binding Posts LEFT RIGHT SPEAKER POWER AUTO LFE IN LFE IN AC 120V~60Hz XO-ACTIVE XO-BYPASSED...
Page 5
“eye”. Rotate binding post clock-wise to tighten. Be sure to maintain polarity (Subwoofer + to Amplifier + , Subwoofer - to Amplifier -) HD-IWS10 Features 10” Reinforced Long-throw Alumi- Gold-plated Compression Terminals Sturdy Wooden Mounting Braces (included). num Driver Braces attach to existing studs.
Page 6
Quick Steps: Install HTD In-Wall Powered Subwoofer You will need the following tools: Drill (with phillips Pencil Optional: 1/2” foam tape head bit and Drywall Saw 1/8” drill bit) Step 1 After checking for stud locations and confirming there are no obstructions hidden behind the wall, position the cardboard template and trace along the inside edge.
Page 7
Step 4 Removing the grille from the in-wall powered sub- woofer is easy if you know a couple of tricks..Here they are: Brand new (un-installed) subwoofer: * Awl Method - Using an awl, insert the hook end of the awl into a hole of the grille (along the edge, not in the center).
Page 8
Step 6 Using a 1/8” drill bit, drill pilot holes into the wood brackets at the four previously marked locations. This prevents the wood from splitting when the screws are driven in. Step 7 If you have not already done so, run the 2-con- ductor speaker cable from the location of the SDA-120 Amplifier, to this wall-space where the Subwoofer will go.
Page 9
Step 9 Pick up the Subwoofer and hold it near the hole in the wall. Connect the speaker wires to the Subwoofer by pressing down on the gold-plated spring-loaded cable connectors on the back, top of the Subwoofer, and inserting one of the stripped ends into each one.
Page 10
The connection of the inwall subwoofer in this example is performed as such: the SDA-120 ampli- fier is connected to a receiver’s LFE or Subwoofer Out connector using a shielded subwoofer cable (available from HTD), and the SDA-120 and In-Wall Subwoofer are connected using standard 2-conductor 14-gauge speaker cable.
Page 11
XO-ACTIVE XO-BYPASSED This image above shows specifically how to connect the SDA-120 Amplifier to an HTD Whole-House Con- troller in order to use the In-wall Subwoofer in one Zone. The left side of this diagram shows use of RCA Y adapters to “split” the line-level signal coming from...
Auto-on capability with dual color LED indicator (amber:stand-by; blue:on) Warranty All HTD electronics carry a two-year parts and labor warranty. Details can be found at www.htd.com/info/warranty. Warranty registration occurred automatically at the time your order was placed. There is no need to complete or mail in additional paperwork.
Need help?
Do you have a question about the HD-IWS10 and is the answer not in the manual?
Questions and answers