Monolith™ THX® Subwoofer P/Ns 24456, 24457, 24458, 35141, 35142, 35143 User's Manual
CONTENTS SAFETY WARNINGS AND GUIDELINES ....................................................................................................................................... 3 CUSTOMER SERVICE.................................................................................................................................................................................... 4 PACKAGE CONTENTS ......................................................................................................................
SAFETY WARNINGS AND GUIDELINES Please read this entire manual before using this device, paying extra attention to these safety warnings and guidelines. Please keep this manual in a safe place for future reference. This device is intended for indoor use only. Do not expose this device to water or moisture of any kind. Do not place drinks or other containers with moisture on or near the device.
Disconnect the unit from the power source when replacing the fuse. Replace the fuse only with the same type. Unplug this device from the power source when not in use. Take care to prevent damage to the power cord. Do not allow it to become crimped, pinched, walked on, or become tangled with other cords. Ensure that the power cord does not present a tripping hazard. Never unplug the unit by pulling on the power cord. Always grasp the connector head or adapter body.
PACKAGE CONTENTS Please take an inventory of the package contents to ensure you have all the items listed below. If anything is missing or damaged, please contact Monoprice Customer Service for a replacement. 1x Monolith subwoofer 1x AC power cable PRODUCT OVERVIEW CROSSOVER: Use the CROSSOVER knob to adjust the upper limit of the subwoofer's frequency response from 40 to 160 Hz. The subwoofer will output only those frequencies below the set level.
change in mid-bass output. The correct position will have a higher amount of apparent mid-bass output. LEVEL: This control allows you to adjust the output level of the subwoofer to match the main speakers in your system. We recommend starting with the LEVEL knob set to the THX position and then calibrate your system with your AV receiver, surround preamp/processor, or SPL meter. The THX position corresponds roughly to a 0dB setting.
LFE & LINE UNBALANCED INPUTS: Use either of these RCA inputs to connect the LFE output on your amplifier or receiver. If your amplifier/receiver does not have an LFE output, connect the stereo preamplifier output on your amplifier/receiver to both the 1 and 2 inputs. XLR BALANCED INPUT: Use this XLR input to connect to a balanced audio source. XLR DIRECT PASS-THRU: This XLR output passes the original audio signal without modification of any kind.
Subwoofer Placement In most rooms, the optimum location for your subwoofer is in the closest solid front corner or somewhere along the front wall in line with your front speakers. This location typically offers optimal energy coupling with the room, front-speakers, and the deepest low frequency extension, with the best high impact bass. Try to avoid a location that is far away from walls or near the center of your room. Bass output is maximized when the subwoofer is tucked into a corner.
3. (Optional) Using another XLR cable, plug one end into the XLR BALANCED INPUT on another Monolith subwoofer, then plug the other end into the XLR DIRECT PASSTHRU jack on the subwoofer. 4. Plug one end of the included AC power cable into the FUSE/120 VAC connector on the subwoofer, then plug the other end into a nearby AC power outlet. Warning! Due to the power requirements of the Monolith subwoofer, do not connect to the accessory outlets on a receiver or processor.
Warning! Due to the power requirements of the Monolith subwoofer, do not connect to the accessory outlets on a receiver or processor. If using a power strip, ensure that it has rated to accommodate the subwoofer's power requirements. 5. Plug in and power on all connected equipment. 6. Set the POWER switch on the subwoofer to the AUTO ON/OFF or ALWAYS ON position, as desired. 7. Using the information in the PRODUCT OVERVIEW section, set the controls to the desired starting positions, then adjust as needed.
5. Plug in and power on all connected equipment. 6. Set the POWER switch on the subwoofer to the AUTO ON/OFF or ALWAYS ON position, as desired. 7. Using the information in the PRODUCT OVERVIEW section, set the controls to the desired starting positions, then adjust as needed. TECHNICAL SUPPORT Monoprice is pleased to provide free, live, online technical support to assist you with any questions you may have about installation, setup, troubleshooting, or product recommendations.
SPECIFICATIONS Model 24456 Woofer 10" cone Cone Material 2 layer long fiber pulp/glass fiber cone Voice Coil Surround Motor 60mm with high temperature aluminum wire and black anodized aluminum bobbin FEA optimized NBR (nitrile butadiene rubber) FEA optimized, 2 aluminum shorting rings, undercut T-pole focused field Magnet Ceramic Y35, 2 pcs total 144 oz.
Auto Turn Off 30 minutes Dimensions (H x W x D) 18.9" x 15" x 19.7" (480 x 380 x 500 mm) Weight 72.5 lbs. (32.9 kg) Model 24457 Woofer 12" cone Cone Material 2 layer long fiber pulp/glass fiber cone Voice Coil Surround Motor 60mm with high temperature aluminum wire and black anodized aluminum bobbin FEA optimized NBR (nitrile butadiene rubber) FEA optimized, 2 aluminum shorting rings, undercut Tpole focused field Magnet Ceramic Y35, 2 pcs total 144 oz.
Crossover Inline/Bypass variable 40-160Hz Inputs RCA (2), XLR Outputs XLR Signal Turn On Selectable always on/auto Auto Turn Off 30 minutes Dimensions (H x W x D) 22.8" x 16.7" x 23.6" (580 x 425 x 600 mm) Net Weight 98.5 lbs. (44.
Frequency Response (-6dB) Sealed Vented (2 ports) Vented (3 ports) Extended EQ 15-200Hz 14-200Hz 16-200Hz THX EQ 23-200Hz 19-200Hz 20-200Hz Harmonic Distortion <1% 20-100Hz (90dB @ 1m) Variable Level Control +15/-20dB Crossover Inline/Bypass variable 40-160Hz Inputs RCA (2), XLR Outputs XLR Signal Turn On Selectable always on/auto Auto Turn Off 30 minutes Dimensions (H x W x D) 26.8" x 17.7" x 27.6" (680 x 450 x 700 mm) Net Weight 128.5 lbs. (58.
Enclosure Sealed HDF cabinet with horizontal bracing Finish Black Ash PVC Amplifier Claridy DSP1000 1000Wrms with DSP control Frequency Response (-6dB) Sealed Extended EQ 16-200Hz THX EQ 20-200Hz Harmonic Distortion <3% 20-100Hz (90dB @ 1m) Variable Level Control +15/-20dB REF Level (100mV@40Hz) 89dB @ 1m Crossover Inline/Bypass variable 40-160Hz Variable Phase 0-180° Inputs RCA (2), XLR Outputs (direct passthrough) XLR Signal Turn On Selectable always on/auto Auto Turn Off 30 m
Surround Motor FEA optimized NBR (nitrile butadiene rubber) FEA optimized, 2 aluminum shorting rings, undercut Tpole focused field Magnet Ceramic Y35, 2 pcs total 144 oz.
Model 35143 Woofer 10" cone Cone Material 2 layer long fiber pulp/glass fiber cone Voice Coil Surround Motor 60mm with high temperature aluminum wire and black anodized aluminum bobbin FEA optimized NBR (nitrile butadiene rubber) FEA optimized, 2 aluminum shorting rings, undercut Tpole focused field Magnet Ceramic Y35, 2 pcs total 125 oz.
Dimensions (without grille) 16.3" x 12.6" x 15.2" (415 x 320 x 385 mm) Dimensions (with grille) 16.3" x 12.6" x 20.8" (415 x 320 x 528 mm) Weight 50.3 lbs. (22.8 kg) Monolith™ and the Monolith logo are trademarks of Monoprice Inc. THX® and the THX logo are trademarks of THX Ltd., registered in the U.S. and other countries.
