Cerwin-Vega CVHF-A21S Manual
Contents
1. lt gt F CERWIN VEGA CVHF POWERED SUBWOOFERS FOR HOME al User Manual Cerwin Vega CVHF Powered Subwoofers for Home CERWIN VEGA S LIMITED WARRANTY WELCOME TO THE FAMILY First off you have great taste in loudspeakers At Cerwin Vega deep bass and great highs are a way of life Nice to know there are a few people out there who share our passion for music You ll be glad to know that this company has been in business since 1953 And we consider you to be the newest member of the family We hope your speakers give you years of enjoyment Of course in the event of a problem make sure you familiarize yourself with this warranty We like to think that while you re sitting in front of your speakers we re standing behind them And now a few choice words from our lawyer Hey every family has one WHO S COVERED BY THIS WARRANTY Cerwin Vega s Limited Warranty on residential speakers extends only to the original purchaser as evidenced by the original Bill of Sale and only to the residential speakers purchased from authorized Cerwin Vega dealers Ten words of advice Retain the original bill of sale in a safe place WHAT S COVERED BY THIS WARRANTY Cerwin Vega warrants that all new residential speakers shall be free from defects in material and workmanship under normal and proper use Cerwin Vega agrees to repair o2. blades with one wider than the other A grounding type 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 your outlet consult a electrician for replacement of the obsolete outlet Protect the power cord from being pinched particularly at plugs convenience receptacles and the point where they exit Only use attachments accessories specified by the manufacturer Use only with a cart stand bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when a apparatus has been damaged in any way such as power 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 To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture The apparatus shall be connected to a main socket outlet with a protective connection a Mains plug is used as the disconnect device It shall remain readily operable and should not be obstructed during intended use b The apparatus shall not be exposed to dripping o
3. this unit beyond instructions contained in this manual Refer all servicing to a Cerwin Vega Stanton Authorized Service Center Servicing is required when the apparatus has been damaged in any way such as power supply input connector 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 Keep your Cerwin Vega subwoofer amplifier module away from sources of heat such as a radiator or oven Do not cover or surround your Cerwin Vega subwoofer amplifier module with material that may retain heat such as a blanket or curtain Be certain that the vents on the panel of the amplifier module are clear of all obstructions during operation Warning Shock Hazard To reduce risk of fire or electric shock do not expose this unit to rain or moisture Do not immerse your Cerwin Vega subwoofer amplifier module in any liquid Do not operate your Cerwin Vega subwoofer near a pool bathtub or other standing water Do not bypass or defeat the grounding or polarization means used on the Cerwin Vega subwoofer amplifier module Make sure all blades on the polarized power plug can be fully inserted into the receptacle or other outlet that will be used with the unit Your Cerwin Vega subwoofer amplifier module should be cleaned only with a dry cloth Take care of the power cord attached to your Cerwin Vega subwoofer amplifier mo
4. PASS O L R LINK OUT THRU Master GEO Slave ooo Gain Freq a PARAMETRIC EGUALIZER O lt CERWIN VEGAL CVHF A21S O Figure 2 1 Cerwin Vega CVHF Powered Subwoofers for Home 3 PLACING THE SUBWOOFER Figure 3 1 Proper placement of your subwoofer will result in the best musical and home theater experience Thankfully subwoofer placement is not difficult Subwoofers reproduce low frequency audio Low frequencies are not as directional as high frequency signals so unlike placing high frequency speakers subwoofers can usually be placed anywhere in the room When you put a subwoofer in a room the sound waves bounce back and forth between the parallel surfaces of the room When they combine it is possible to get a standing wave If they cancel each other out you can get a null If you listen in a location where standing waves peak you will likely hear boomy one note bass If you are sitting in a null you will hear less bass Moving a foot or two to either side of a null can cause the bass to magically reappear As you can see the subwoofer and your particular room work together It s not just the location of the subwoofer that matters where you place the sofa and chairs is just as important Here are a few tricks that will help you work around peaks and nulls and assist you in getting the best sound from your subwoofer If possible plac
5. dule Avoid situations where your cord might be stretched pinched or otherwise abused Route it to avoid foot traffic Pay special attention to the cord connector and attachment points Cerwin Vega CVHF Powered Subwoofers for Home 2 OVERVIEW OF CONTROLS Figure 2 1 INDICATORS Illumination of LED indicates status of amplifier Power electric current is live and present in the system Limit the system is being driven to its maximum capacity clipping Protect the built in amplifier has shut down to protect itself Signal a line level signal is present in the system IN L amp R inputs Electronically balanced XLR and RCA connectors accept input signal from line level sources INL amp R also routes to THRU L amp R outputs LEVEL Controls the master volume at the pre amp stage HIGH PASS FILTER When sending a full range signal through the subwoofer to top cabinet the HPF blocks LF signals below indicated frequencies from reaching the top cabinet VARIABLE LOW PASS FILTER When sending a full range signal to the subwoofer the variable LPF blocks HF signals above indicated frequencies from reaching the subwoofer In the fully count THRU L amp R outputs Provide a loop thru of the signals coming in on the L and R inputs The High Pass filter is active on these outputs These outputs and the High Pass filter area always active regardless of whether the unit is in master or slave mode Typically these outp
6. e failure of the repairs within 30 days after they were completed HOW DO YOU GET WARRANTY SERVICE In order to obtain warranty service contact your original dealer or distributor or an Authorized Cerwin Vega Service Center If for some reason you have trouble locating a service representative contact Cerwin Vega s Customer Service Department for assistance Cerwin Vega Customer Service Dept 772 S Military Trail Deerfield Beach FL 33442 1 954 949 9601 service cerwin vega com In some cases the Customer Service Department can solve a service problem without any return of equipment thereby avoiding transit delays For more information visit http www cerwin vega com service_support php WHAT IF THE PRODUCT MUST BE RETURNED If the Customer Service Department determines that the equipment must be returned to Cerwin Vega for service a Return Authorization will be issued by mail and the defective merchandise may be shipped directly to the above address freight prepaid along with a copy of both the Return Authorization and the original Bill of Sale The product will be replaced or repaired at our option and returned to the original purchaser Only the return postage will be paid by Cerwin Vega Cerwin Vega will not be responsible for damage occurring in shipment from the original purchaser or due to improper packing materials Remember to pack all equipment carefully and in the original carton if possible Additiona
7. e the subwoofer on the same horizontal plane as your main speakers i e in line with them Corners and walls reinforce bass frequencies If possible place the subwoofer in the corner of a room or next to a wall and then use the subwoofer s level control to dial in the right amount of bass The worst place for a subwoofer is in the middle of a room There are no walls to reinforce the bass energy there If there is too much bass buildup in one area try moving furniture around to dissipate or diffuse this buildup Careful subwoofer and furniture placement will help to more evenly distribute the bass frequencies throughout the room A second subwoofer can also be used to more evenly distribute bass frequencies though is usually not necessary The most difficult room shape is square so if you have the flexibility to choose which room you ll use for home theater or you are building a new home and designating a space for home theater avoid rooms with equal dimensions The closer you sit to a wall the more pressure your ear will pick up and the greater the bass intensity will be Avoid rooms with concrete floors and walls Walls where the wallboard flexes are more absorptive and produce fewer problems with bass boom If you can t avoid concrete walls add studs and one layer of wallboard to the walls of the room to further aid absorption Approximately equal distances Figure 3 1 Cerwin Vega CVHF Powered S
8. erating and maintenance servicing instructions in the literature accompanying the product The lightning flash with the arrowhead symbol within an equilateral triangle is to alert the user to the presence of insulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to humans CAUTION TO REDUCE THE RISK OF ELECTRONIC SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL ATTENTION POUR EVITER LES RISQUES DE CHOC ELECTRIQUE NE PAS ENLEVER LE COUVERCLE AUCUN ENTRETIEN DE PIECES INTERIEURES PAR LUSAGER CONFIER L ENTRETIEN AU PERSONNEL QUALFIE AVIS POUR EVITER LES RISQUES D INCENDIE OU D ELECTROCUTION NEXPOSEZ PAS CET ARTICLE A LA PLUIE OU A LHUMIDITE The IEC fuse symbol pictured at the left represents an approved user replaceable fuse When replacing a fuse make sure to replace with only the correct type and rating Important Safety Instructions a 2 10 11 12 13 14 Read and keep these instructions Heed all warnings and follow instructions Do not use this apparatus near water Clean only with a dry cloth Do not block any ventilation openings Do not install near any heat sources such as radiators heat registers stoves or other apparatus that produce heat Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two
9. inch 25 7 inch x 21 1 inch x 23 7 inch 803 mm x 610 mm x 592 mm 653 mm x 534 mm x 602 mm Net Weight 194 5 Ib 88 3 kg 125 5 Ib 57 kg All information included in this User Manual is subject to change without notice Cerwin Vega Powered Subwoofers for Home NOTES S CERWIN VEGA 772 S Military Trail e Deerfield Beach FL 33442 Phone 1 954 949 9601 Fax 1 954 949 9590 E mail info cerwin vega com www cerwin vega com LITHOOO17 10 30 2009
10. l charges may be added if new packing materials are required for return shipment Save your original packing materials WHAT ARE OTHER REMEDIES UNDER THE LAW The exercise of any of the provisions under the Limited Warranty does not affect the protections or remedies of the original purchaser under other laws If you have additional questions about service write or call the Customer Service Department This Limited Warranty applies to all residential speakers and supersedes all previous warranty statements Cerwin Vega reserves the right to make changes in product design and specifications at any time EXCEPT AS PROVIDED HEREIN AND BY APPLICABLE LAW CERWIN VEGA MAKES NO ADDITIONAL REPRESENTATION OR WARRANTY OF ANY NATURE WHATSOEVER EXPRESSED OR IMPLIED AS TO THE EQUIPMENT INCLUDING BUT NOT LIMITED TO THE MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE DESIGN CONDITION OR WORKMANSHIP OF THE EQUIPMENT OR THE QUALITY OF THE MATERIAL INCLUDED THEREIN THIS LIMITED WARRANTY CONSTITUTES THE SOLE AND ENTIRE AGREEMENT BETWEEN CERWIN VEGA AND THE ORIGINAL PURCHASER IMPORTANT SYMBOLS AND SAFETY INSTRUCTIONS Explanation of Graphic Symbols CAUTION FISK OF ELECTRIC SHOCK DONOTOPEN DO NOT EXPOSE TO RAIN ORMOISTURE CAUTION FISK OF ELECTRIC SHOCK DO NOT OPEN DO NOT EXPOSE TO RAIN ORMOISTURE H The exclamation point within an equilateral triangle is intended to alert the users to the presence of important op
11. ls Causes Amplifier is at maximum output Receiver tone controls are set too high Defective receiver or preamplifier or shorted speaker wires Dynamic soundirack e g explosions Connecting wires with power on causes transient signal spikes Grounding problem or ground loop Amplifier s thermal protection has been temporarily activated Solutions Lower volume or receiver level control Set bass flat use tone controls sparingly Repair defective receiver preamplifier or replace speaker wires Turn down volume control to lower overall range Connect wires only when system power is Off Check receiver or preamplifier manual for help in eliminating a ground loop Lower subwoofer volume and allow amplifier to cool down sound should resume automatically Cerwin Vega Powered Subwoofers for Home 6 SPECIFICATIONS Crossover Variable LPF 65 Hz to 130 Hz Variable LPF 65 Hz to 130 Hz HPF 25 Hz HPF 25 Hz Controls HPF 65 Hz 85 Hz 130 Hz HPF 65 Hz 85 Hz 130 Hz Variable LPF 65 Hz 130 Hz Polarity Switch 0 180 Polarity Switch 0 180 Parametric Equalizer Gain Frequency Q ONA O LF Driver 21 Paper cone double roll cast 18 Paper cone double roll cast frame woofer frame woofer Input Connectors L amp R XLR RCA In and Through L amp R XLR RCA In and Through XLR RCA Link Out XLR RCA Link Out Dimensions H x W x D 31 7 inch x 24 1 inch x 23 3
12. r replace at our option all such defective parts at no charge for labor or materials WHAT S NOT COVERED BY THIS WARRANTY This Limited Warranty does not apply to defective equipment that has been altered or repaired by other than factory approved procedures has been subjected to negligence misuse or accidenthas been damaged by improper line voltage had its serial number or any part of it altered defaced or removed has been used for other than home entertainment purposes or has been used in a way that is contrary to Cerwin Vega s written instructions Except as provided by statute this Limited Warranty does not cover losses consequential or otherwise resulting from the improper use of or inability to operate any Cerwin Vega product HOW LONG DOES THE WARRANTY EXTEND Cerwin Vega s Limited Warranty extends for a period of 2 years for all system speaker components two 2 years for all associated electronics components including amplifier and controller devices and one 1 year for speaker stands and wall mount brackets from the date of purchase as shown on the original Bill of Sale The warranty period will be extended if the warranty repairs have not been performed due to delays caused by Cerwin Vega or a representative of Cerwin Vegal or if the warranty repairs did not remedy the defect and the original purchaser notifies Cerwin Vega or the original dealer or an Authorized Cerwin Vega Service Center of th
13. r splashing and that no objects filled with liquids such as vases shall be placed near on the apparatus Cerwin Vega CVHF Powered Subwoofers for Home CONTENTS Ri ese Uile AA AE EE RE EE EE OT AE EE AR EL OE 1 1 1 Before You RE RE ER a k k 1a e d n R a dad dk l W n bA d k N BRA b k EE OE d han 1 25 Overview of COMtrOlS Prr r r r a aep a i rrr 2 3 Placing the SUDWOOTER EE Ei ER UNE w EE EN 3 4 Wiring the SUBWOOTER OR ER RE EO OE OR EE 4 5s Troubleshooting seis EA AT N ete es ee EE 6 6 Sp cifications emen ER eee RE KAY K AA 7 1 INTRODUCTION Congratulations Welcome to the Cerwin Vega family You ve joined a growing group of audio enthusiasts who ve turned to Cerwin Vega for the most advanced audio reproduction systems available All Cerwin Vega systems are thoroughly tested to insure that they meet or exceed our performance specifications Backed by the best service in the industry Cerwin Vega is dedicated to quality and reliability For a complete overview of Cerwin Vega products and services please visit our website at www cerwin vega com 1 1 BEFORE YOU BEGIN Cerwin Vega subwoofers are easily capable of generating sound pressure levels SPL sufficient to cause permanent hearing damage to performers production crew and audience members Caution should be taken to avoid prolonged exposure to SPL in excess of 90 dB Built in Amplifier Precautions Do not attempt to service
14. ubwoofers for Home 4 WIRING THE SUBWOOFER Option 1 LFE Figure 4 1 From AV Receiver to Speakers From Amp LFE Out to Left Line Level Input 65 Hz 85 Hz 0 Me 30Hz go 65 Q Hz HIGH PASS POLAIRITY VARIABLE TOTHRU LOW PASS L R UNK OUT Master Slave D Figure 4 1 Option 2 Line Level Input no LFE Figure 4 2 65 Hz 85 Hz Me 30 Hz 180 65 Hz G 130 Hz HIGH PASS POLAIRITY VARIABLE TOTHRU LOW PASS 0 From Amp Line Level Out L R to Sub Line Level Input LINK OUT Master Slave Z O Amplifier or Powered Speaker Amplifier or Powered Speaker Figure 4 2 Cerwin Vega CVHF Powered Subwoofers for Home Option 3 Adding and additional sub Figure 4 3 65 Hz 85 Hz 0 BYPASS Q 130 Hz 180 65 Hz 130 Hz HIGH PASS POLAIRITY VARIABLE TOTHRU LOW PASS 65 Hz 85 Hz 0 BYPASS Q 130 Hz 180 65Hz 130 Hz HIGH PASS POLAIRITY VARIABLE TOTHRU LOW PASS Connect Link Out to Left Input L R LINK OUT Master THRU o Master i e Slave gt Figure 4 3 Note XLR connections can be used in place of the RCA Cerwin Vega CVHF Powered Subwoofers for Home 5 TROUBLESHOOTING Symptoms Bass sounds distorted Distortion with volume control near minimum Distortion on music peaks or sound effects Buzz hum or crackle when connecting wires Buzz or hum when system is On No sound after listening at high leve
15. uts are used for top cabinets POLARITY SWITCH Changes the polarity of the subwoofer also referred to as the phase Listen and adjust for maximum bass MASTER SLAVE This mode is used to provide the ability to adjust multiple sub units from the master sub When switched to MASTER all sub controls are functional and both L and R inputs are operational The LINK OUT connector sums the input signals from both L and R inputs and is used to send a signal to a sub in SLAVE mode When set to SLAVE mode only the L input connector is active and the LEVEL POLARITY and LOW PASS FILTER are inactive To attach more subs set them to SLAVE mode use the LINK OUT of the previous sub and send this signal to the L IN on the SLAVE LINK OUT Used to send a signal to a sub set to SLAVE mode When the sub is set to SLAVE mode the LINK OUT provides a summed signal of the L and R inputs See MASTER SLAVE for more information PARAMETRIC EQUALIZER CVHF A21S only One band full parametric equalizer with adjustment of the Gain Frequency and Q The higher the setting the narrower the frequency range becomes that is being affected POWER SWITCH Turns the AC power of the unit On and Off AC INPUT Input for attachment of the IEC power cord Ma O A 2 na o G fo L R ho ay Roy My o C gt o OD O O OO IN i s Q a BE LEVEL 65 Hz 85 Hz 0 O Q Q BYPASS 130 Hz 180 65Hz 130 Hz HIGH PASS POLAIRITY VARIABLE TOTHRU LOW
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