UltraCube 10 - Subwoofer Paradigm - Free user manual and instructions
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| Brand | Paradigm |
| Model | UltraCube 10 |
| Product Type | Amplified subwoofer |
| Category | Subwoofer |
| Speaker | 10 inches (25.4 cm) |
| Maximum Power | 300 W RMS (estimated) |
| Power Supply | 220-240 V, 50/60 Hz |
| Dimensions (approx.) | 36 x 36 x 32 cm (W x D x H) |
| Weight (approx.) | 16 kg |
| Inputs | Line level (RCA), speaker level (binding posts) |
| Outputs | None (active subwoofer) |
| Controls | Volume, crossover frequency, phase (0°/180°), auto standby |
| Special Features | Crossover bypass, USB port for Perfect Bass Kit (PBK) and updates |
| Enclosure Material | MDF (medium-density fiberboard) with vinyl finish |
| Maintenance and Cleaning | Clean with a soft damp cloth. Do not use abrasive detergents. Avoid excessive humidity. |
| Safety | Overload protection, fuse replaceable by qualified personnel. Do not expose to rain or moisture. |
| Warranty | 3 years (parts and labor) against defects in materials and workmanship for normal residential use. |
| Optional Accessories | Perfect Bass Kit (PBK) for room acoustic calibration |
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USER MANUAL UltraCube 10 Paradigm
Thank you for choosing Paradigm® Subwoofers and congratulations! You are about to hear the difference these high-performance subwoofers will make in your music and home theater system.
These subwoofers are the product of countless hours of comprehensive research and development and will reward you with superior high-end sound for many years.
To achieve all of the exceptional sound they are capable of providing requires care in installation and operation. Please take the time to read this manual and follow all instructions. If you have further questions, contact your Authorized Paradigm® Dealer or visit the Q&A page on our website at www.paradigm.com.
Safety Precautions 2
Important Safety Instructions ... 3
Subwoofer Placement and
Connection (Pictorial) 4
Your New Subwoofer.... 5
Power Requirements 5
Room Acoustics.... 5
Subwoofer Placement ..... 5
Subwoofer Connection.... 6
Fine Tuning 8
Limited Warranty ....
9
RECYCLING AND REUSE GUIDELINES FOR EUROPE
In accordance with the European Union WEEE (Waste Electrical and Electronic Equipment) directive effective August 13, 2005, we would like to notify you that this product may contain regulated materials which, upon disposal, according to the WEEE directive, require special reuse and recycling processing. For this reason Paradigm Electronics Inc. (manufacturers of Paradigm® speakers and Anthem® Electronics) has arranged with our distributors in European Union member nations to collect and recycle this product at no cost to you. To find your local distributor please contact the dealer from whom you purchased this product or go to our website at www.paradigm.com.
Please note that the product only falls under the WEEE directive. When disposing of packaging and other shipping material we encourage you to recycle through the normal channels.
SAFETY PRECAUTIONS
READ THIS SECTION CAREFULLY BEFORE PROCEEDING!
WARNING
RISK OF ELECTRIC SHOCK DO NOT OPEN
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The lightning flash with arrowpoint within an equilateral triangle warns of the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle warns users of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE, AND OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, SHOULD NOT BE PLACED ON THIS APPARATUS.
CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE THE FUSE ONLY WITH THE SAME AMPERAGE AND VOLTAGE TYPE. REFER REPLACEMENT TO QUALIFIED SERVICE PERSONNEL.
WARNING: UNIT MAY BECOME HOT. ALWAYS PROVIDE ADEQUATE VENTILATION TO ALLOW FOR COOLING. DO NOT PLACE NEAR A HEAT SOURCE, OR IN SPACES THAT CAN RESTRICT VENTILATION.
IMPORTANT SAFETY INSTRUCTIONS
- Read Instructions – All the safety and operating instructions should be read before the product is operated.
- Retain Instructions – The safety and operating instructions should be retained for future reference.
- Heed Warnings – All warnings on the product and in the operating instructions should be adhered to.
- Follow Instructions – All operating and use instructions should be followed.
- Cleaning – Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp, soft cloth for cleaning.
- Water and Moisture – Do not use this product near water—for example, near a bath tub, wash bowl, kitchen sink, or laundry tub; in a wet basement; or near a swimming pool; and the like.
- Accessories – Do not place this product on an unstable cart, stand, tripod, bracket or table. The product may fall, causing serious injury to a child or adult, and serious damage to the product. Use only with a cart, stand, tripod, bracket or table recommended by the manufacturer, or sold with the product. Any mounting of the product should follow manufacturer's instructions and should use a mounting accessory recommended by the manufacturer.
- Ventilation - Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating, and these openings must not be blocked or covered. The openings should never be blocked by placing the product on a bed, sofa, rug, or other similar surface. This product should not be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer's instructions have been adhered to.
- Power Sources – This product should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply to your home, consult your product dealer or local power company. For products intended to operate from battery power, or other sources, refer to the operating instructions.
- Grounding and Polarization - This product may be equipped with a polarized alternating-current line plug (a plug having one blade wider than the other). This plug will fit into the power outlet only one way. This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug.
-
Power-Cord Protection - Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the product.
-
Lightning – For added protection for this product during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable systems. This will prevent damage to the product due to lightning and power-line surges.
- Overloading - Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of fire or electric shock.
- Object and Liquid Entry – Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock. Do not expose this apparatus to dripping or splashing, and ensure that no objects filled with water, such as vases, are placed on the apparatus.
- Servicing – Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
- Damage Requiring Service – Unplug this product from wall outlet and refer servicing to qualified personnel under the following conditions:
- When power supply cord or plug is damaged;
- If liquid has been spilled, or objects have fallen into product;
• If the product has been exposed to rain or water; - If the product does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in damage and will require extensive work by a qualified technician to restore the product to its normal operation;
- If the product has been dropped or damaged in any way;
- If the product exhibits a distinct change in performance—this indicates a need for service.
- Replacement Parts – When replacement parts are required, be sure the technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards.
- Safety Check – Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition.
- Wall or Ceiling Mounting – The product should be mounted to a wall or ceiling only as recommended by the manufacturer.
- Heat - The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat.
SUBWOOFER PLACEMENT AND CONNECTION (Pictorial)
natural_image
Simple 3D diagram of a rectangular plane with a small cube on top and shaded circular regions (no text or symbols)Fig. 1a
natural_image
3D diagram of a rectangular grid with a small cube on top, no text or symbols presentFig. 1b Fig. 2
natural_image
Simple 3D diagram of a room layout with a monitor, chairs, and two small boxes on the sides (no text or symbols)
flowchart
graph TD
A["RECEIVER/ PRE-AMP"] --> B["CABLE"]
C["L R"] --> B
D["PRE-OUT/ FRONT-OUT"] --> B
E["RECEIVER/ PRE-AMP"] --> F["MAIN-IN"]
G["L R"] --> F
H["SUBWOOFER"] --> I["RECEIVER/ PRE-AMP"]
J["LE R"] --> K["RECEIVER/ PRE-AMP"]
Fig. 3
flowchart
graph TD
A["LEFT SPEAKER"] --> B["SPEAKER LEVEL INPUT"]
B --> C["SUBWOOFER"]
C --> D["RIGHT SPEAKER"]
D --> E["RECEIVER/AMP"]
style A fill:#f9f,stroke:#333
style C fill:#ccf,stroke:#333
style D fill:#cfc,stroke:#333
style B fill:#ffc,stroke:#333
style E fill:#fcc,stroke:#333
Fig. 4
YOUR NEW SUBWOOFER
Break-In
Although your Paradigm® subwoofer will sound great “out of the carton” it will sound even better when broken in. Allow it to operate for several hours before you listen critically.
Cleaning
Do not use a strong or abrasive cleaner on your subwoofer. Clean it with a damp soft cloth, but do not get it wet. Do not place wet objects, such as drinking glasses or potted plants, on top of it. If allowed to soak in, even a small amount of water may permanently damage the enclosure.
POWER REQUIREMENTS
The “Watts” (W) rating indicated on the rear panel of your subwoofer is the maximum AC power the unit will draw when producing its maximum power output. However, the actual wattage draw will vary with the bass content of the program material.
Although generally not required for typical music and movie program material, if the bass content of your program material is very loud and more continuous in nature, we recommend connecting subwoofers with higher wattage ratings (i.e. 1500 W) to dedicated AC circuits.
ROOM ACOUSTICS
You are about to experience the powerful and extremely accurate deep bass performance of Paradigm ^® subwoofers. These subwoofers offer incredible output with low distortion, exceptional extension and superb definition. It is important to note, however, that just as the amount of soft furnishings has a decided impact on mid and high frequencies, those frequencies below 150 Hz are dramatically affected by the room itself—its size, shape, as well as the physical boundaries of the room. The extra care you take in correctly positioning your subwoofer(s) will result in greater listening enjoyment. Keep the following guidelines in mind when deciding on best subwoofer placement:
- Concrete floors and walls tend to aggravate low-frequency standing wave problems and are less preferred.
- Rooms where height, width and length are similar should be avoided as they can exhibit significant low-frequency standing wave problems. This may result in reduced clarity. If no other room is possible, experiment with subwoofer placement to minimize acoustic problems.
SUBWOOFER PLACEMENT
To avoid personal injury, install subwoofer in a location where any rear amplifier parts such as panels and/or heatsinks, etc. cannot be accidentally touched.
Bass is less and less directional as it goes down in frequency. For best sonic integration, locating your subwoofer between your front speakers or beside one of them and close to the back wall will usually provide the best bass performance. If this location is not possible your subwoofer may be placed anywhere in the room without affecting the stereo image of your front speakers or the soundstage of your multichannel speaker system.
Fig. 1a and Fig. 1b, on page 4, highlight how bass output is generally affected by room placement. When seated in a typical listening area of your room, placing the subwoofer inside the "shaded" areas will typically result in bass performance as follows:
Fig. 1a: Corner placement provides the most bass, but sometimes at the expense of accuracy.
Fig. 1b: A subwoofer placed near a wall usually provides a good balance of quantity and accuracy.
Controls are provided to align your subwoofer's output to the other speakers in your system, see "Fine Tuning," page 8.
THE ADVANTAGES OF USING TWO SUBWOOFERS
Although a single Paradigm ^® subwoofer provides exceptional performance and substantial output, the quality (and quantity) of bass can be further improved with the use of two subwoofers (Fig. 2). This allows you to randomize the standing waves within your listening room so that bass will be distributed in a more uniform manner. Two subwoofers also provide even
lower distortion, especially at high output levels.
See Dealer for connection instructions using multiple subwoofers.
PLACING TWO SUBWOOFERS IN YOUR LISTENING ROOM
When using two subwoofers, placing one in the front of the room and the other in the rear of the room (as shown in Fig. 2) usually provides the best bass performance and sonic integration. Consult the fine tuning section of the Owner's Manual for more information on adjusting phase settings. If those locations are not possible or if you want to experiment with placement options using two subwoofers, the following procedure will be a helpful guide to achieving better bass performance. Refer to "Subwoofer Connection" then proceed as follows:
- Temporarily turn all speakers off (either by turning your amplifier off or disconnecting them);
-
Connect and place one subwoofer in the central area of your listening room. Follow directions for connection, as outlined in the following section;
-
At a moderately loud level, play music or a video soundtrack with extended bass that is repetitive or continuous;
- Walk around your room and note where the bass sounds louder and where it sounds quieter;
- Place the first subwoofer within a louder bass area of your room; then place the second subwoofer within a quieter bass area of your room;
- Connect both subwoofers and switch all speakers back on; and switch the amplifier on, or reconnect it;
- Follow "Fine Tuning" instructions on page 8, to optimize your system's overall bass performance.
NOTE: The preceding is only a guideline. You may want to use a bass test disc and SPL meter to more accurately determine the bass characteristics of your listening room (see Dealer for more information).
Remember that room acoustics vary so it may take some experimenting with placement to achieve the best subwoofer performance.
SUBWOOFER CONNECTION
SAFETY PRECAUTION: Before proceeding with this section be sure to read and follow all safety precaution and instruction notices at the beginning of this manual.
Turn all components OFF before connecting the subwoofer.
We recommend the use of high-quality cables and connectors when hooking up your subwoofer (see Dealer).
IMPORTANT: It is important that you become familiar with your powered subwoofer's Input/Output Facilities and Control Facilities. Before connecting your subwoofer, read the following sections.
Facilities vary by model. Inspect your subwoofer's rear panel and check mark the facilities that apply to your model.
INPUT/OUTPUT FACILITIES
□ Line-Level Input
Allows connection from the Sub/LFE Output of an A/V receiver, processor, Paradigm® X-Series subwoofer control unit (optional) or other suitable low-level source.
☐ Speaker-Level Input
Allows easy connection from the speaker output terminals of an amplifier or receiver or from the front speakers' hook-up terminals.
SUBWOOFER CONNECTION (continued)
CONTROL FACILITIES
☐ Auto-On/Standby or Auto-On/Off
If your subwoofer has this feature, it will turn on when it receives an input signal—eliminating the need for a power switch. If no signal is sensed for a period of time, the subwoofer will automatically switch off (or switch to standby, depending on the model).
□ Always-On
When the toggle switch is in the Always-On position, the subwoofer will remain continuously "on."
Subwoofer Level
Balances the subwoofer output level to your speakers.
For instructions on setting the Subwoofer Controls once your subwoofer has been connected refer to the section on "Fine Tuning," page 8.
☐ Subwoofer Cut-Off Frequency and Bypass Option (on models where applicable)
Controls the subwoofer's upper-frequency cut-off. This can be set to match the low-frequency roll-off characteristics of your front speakers. For example, if your front speakers play to approximately 80 Hz, you can set the subwoofer cut-off frequency to 80 Hz.
Bypass Option allows you to bypass the subwoofer's built-in cut-off control to let your preamp/processor's or receiver's internal bass management system provide the crossover function.
☐ Subwoofer/Satellite Phase Alignment
The sound from your subwoofer may arrive at the listening position out of phase with the front speakers. This control synchronizes the subwoofer and the front speakers through their frequency overlap region.
NOTE: For models without phase alignment controls, the (+) and (−) connections can be reversed to change relative phase.
THE USB PORT
On the rear of selected subwoofer models, allows for:
- Connection of optional Paradigm Perfect Bass Kit (PBK ^™ );
- Future upgrades to the software installed in your subwoofer.
PARADIGM'S PERFECT BASS KIT (PBK™)
Even when the world's finest speakers are perfectly positioned, the room can still have a dramatic impact on performance. Room dimensions, dead spots, archways, furniture placement and countless other factors can turn a room into an additional instrument, playing alongside musicians or movie scores with unwanted contributions of coloration and resonance.
Although the Control Facilities included on your Paradigm ^® subwoofer allow you to fine tune for optimal bass performance in your room, Paradigm's Perfect Bass Kit (PBK ^™ ) (sold separately, see Dealer) allows you to correct for the effects of your room's boundaries.
SUBWOOFER CONNECTION OPTIONS
Before connecting your subwoofer, please read this entire section to determine which setup option best suits your needs. (See Dealer if you require additional information.)
NOTE: Connection options vary by model. Review your check marks to determine hook-up methods available.
- Line-Level Input From Sub/LFE Output (Fig. 3) – For use with a receiver, processor or subwoofer control unit that has a Sub-Out/LFE-Out jack.
Using an RCA-to-RCA interconnect cable connect the subwoofer as shown. If your subwoofer has two low-level input jacks use the right (mono) input.
2. Speaker-Level Input (Fig. 4) – For use with a receiver or amplifier that has no Sub-Out/LFE-Out or Pre-Out/Front-Out facilities.
Using high-quality speaker cable connect your subwoofer, as shown.
For convenience, you can also connect your front speakers to these terminals (also shown in Fig. 4).
USING YOUR SUBWOOFER WITH HIGH-SENSITIVITY SPEAKERS
When the subwoofer is used with high-sensitivity speakers more volume gain may be required. If your subwoofer has two (L/R) low-level input jacks you can obtain 6 dB more gain by using a "Y" cable and plugging into both
input jacks (not shown).
FINE TUNING
Once you have the rest of your speakers positioned in the room and have set speaker distances and calibrated speaker levels with your Processor or A/V Receiver, it's time for a little fine tuning of the subwoofer(s).
Subwoofer Controls
When setting the subwoofer controls use music and video soundtracks that you know well. They should contain selections with extended bass that is continuous and repetitive. When you are adjusting your subwoofer,
remember: Bass should not be overbearing—the subwoofer should not draw attention to itself—but sound shouldn't be "thin" or difficult to hear. Certain subwoofer placement may result in bass frequency cancellations—this occurs when your front speakers and subwoofer are "out-of-phase", in other words, they work against each other through the crossover region. This will result in bass being reduced. If bass sounds weak or dislocated adjust the phase according to the instructions that apply to your subwoofer in the setup procedures that follow.
SETTING SUBWOOFER CONTROLS
For Subwoofers that have a Sub./Sat. Phase Alignment Control
Set tone or equalizer controls on your receiver or preamplifier to flat (or 0°) and switch any loudness controls off.
- Turn the Subwoofer Level control completely counter-clockwise to its minimum;
- Turn the Subwoofer Cut-Off Frequency control to 150 Hz;
- Turn the Sub./Sat. Phase Alignment control to 0^ (completely counter-clockwise);
- While you listen to a selection in your primary listening area, have an assistant turn up the Subwoofer Level control until the subwoofer can be clearly heard;
-
Have your assistant slowly rotate the Sub./Sat. Phase Alignment control until you hear the most bass. Your subwoofer and front speakers are now "in phase." Do not change phase alignment again unless you move your subwoofer or front speakers;
-
Turn the Subwoofer Level control completely counter-clockwise to its minimum;
- Turn the Subwoofer Cut-Off Frequency control completely counterclockwise to 50 Hz;
- Slowly rotate the Subwoofer Level control until you match the subwoofer output level with the level of your front speakers. Bass should be clearly audible, but not intrusive;
- Slowly rotate the Subwoofer Cut-Off Frequency control until you hear the best subwoofer/main speaker blend. If the sound is too "thin," you have not set the frequency high enough; if the sound becomes "boomy" you have set the frequency too high. Adjust until you find the most natural balance.
SETTING SUBWOOFER CONTROLS
For Subwoofers that have a Sub/Sat Phase Switch
Set tone or equalizer controls on your receiver or preamplifier to flat (or 0^ ) and switch any loudness controls off. If your subwoofer is positioned in the front of the room, the optimal position for the Phase Switch is typically at the 0^ position; if your subwoofer is positioned in the rear of the room, the switch should be set to the 180^ position.
- Turn the Subwoofer Level control completely counter-clockwise to its minimum;
- Turn the Subwoofer Cut-Off Frequency control completely counterclockwise to 50 Hz;
-
Slowly rotate the Subwoofer Level control until you match the subwoofer output level with the level of your front speakers. Bass should be clearly audible, but not intrusive;
-
Slowly rotate the Subwoofer Cut-Off Frequency control until you hear the best subwoofer/front speaker blend. If the sound is too "thin," you have not set the frequency high enough; if the sound becomes "boomy" you have set the frequency too high. Adjust until you find the most natural balance.
NOTE: If bass sounds weak or dislocated, you may have a phase alignment problem. Simply flip the Phase switch to the opposite position and listen to see which switch position gives you the most bass energy in the room. To further enhance performance, you can also experiment with the subwoofer's location in the room to find an area that yields the best overall bass balance and fidelity.
LIMITED WARRANTY
Paradigm ^® subwoofers covered in this manual are warranted to be and remain free of manufacturing and/or material defects for a period of three (3) years from the date of the original retail purchase.
Within the time period specified, repair, replacement or adjustment of parts for manufacturing and/or material defects will be free of charge to the original owner.
Thermal or mechanical abuse/misuse is not covered under warranty.
Limitations:
- Warranty begins on date of original retail purchase from an Authorized Paradigm® Dealer only. It is not transferable;
- Warranty applies to product in normal home use only. If the product is subjected to any of the conditions outlined in the next section, warranty is void;
- Warranty does not apply if the product is used in professional or commercial applications.
Warranty is Void if:
- The product has been abused (intentionally or accidentally);
- The product has been used in conjunction with unsuitable or faulty equipment;
- The product has been subjected to damaging signals, derangement in transport, mechanical damage or any abnormal conditions;
- The product (including cabinet) has been tampered with or damaged by an unauthorized service facility;
- The serial number has been removed or defaced.
Owner Responsibilities:
- Provide normal/reasonable operating care and maintenance;
- Provide or pay for transportation charges for product to service facility;
- Provide proof of purchase (your sales receipt given at time of purchase from your Authorized Paradigm ^® Dealer).
Should servicing be required, contact your nearest Authorized Paradigm® Dealer, Paradigm Electronics Inc., or Import Distributor (outside the U.S. and Canada) to arrange, bring in or ship prepaid any defective unit. Visit our website at www.paradigm.com for more information.
Paradigm Electronics Inc. reserves the right to improve the design of any product without assuming any obligation to modify any product previously manufactured.
This warranty is in lieu of all other warranties expressed or implied, of merchantability, fitness for any particular purpose and may not be extended or enlarged by anyone. In no event shall Paradigm Electronics Inc., their agents, or representatives be responsible for any incidental or consequential damages. Some jurisdictions do not allow limitation of incidental or consequential damages, so this exclusion may not apply to you.
Retain this manual and your sales receipt for proof of warranty term and proof of purchase.
Paradigm ^MD
LE SUMMUM EN QUALITÉ SONORE POUR LA MUSIQUE ET LE CINÉMA MAISON™
P R Ê T
PBK
MODE D' EMPLOI
OM-105
CAISSONS DE SOUS-GRAVES PARADIGM
natural_image
Simple 3D diagram of a rectangular plane with a small cube on top and shaded circular regions (no text or symbols)Fig. 1a
natural_image
3D diagram of a rectangular grid with a small cube on top (no text or symbols)Fig. 1b Fig. 2
natural_image
Simple 3D diagram of a rectangular area with a central monitor and two small cubes on both sides (no text or symbols)
flowchart
graph TD
A["RECEIVER/ PRE-AMP"] --> B["L"]
C["PRE-OUT/ FRONT-OUT"] --> D["R"]
E["CABLE"] --> F["Y"]
G["RECEIVER/ PRE-AMP"] --> H["L"]
I["MAIN-IN"] --> J["R"]
K["SUBWOOFER"] --> L["L"]
M["SUBWOOFER"] --> N["R"]
Fig. 3
flowchart
graph TD
A["LEFT SPEAKER"] --> B["SPEAKER LEVEL INPUT"]
B --> C["SUBWOOFER"]
C --> D["RIGHT SPEAKER"]
D --> E["RECEIVER/AMP"]
style A fill:#f9f,stroke:#333
style B fill:#ccf,stroke:#333
style C fill:#cfc,stroke:#333
style D fill:#fcc,stroke:#333
style E fill:#ffc,stroke:#333
Fig. 4
