HDS-16 & HRM-16 Manual.indd - Furman Sound

HDS-16HRM-16HDS-16/HRM-16 HEADPHONE DISTRIBUTION SYSTEMHEADPHONE/AUDIO DISTRIBUTIONAND REMOTE MIXING SYSTEMMONITORINGSERIES

HDS-16/HRM-16 HEADPHONE DISTRIBUTION SYSTEMINTRODUCTIONThe HDS-16/HRM-16 Headphone/AudioDistribution System is the latest additionto the Furman Sound headphone/audiodistribution product line. The HDS-16distribution device sends signals toone or more HRM-16 remote mixers;the HDS-16 and HRM-16 are soldseparately. This new system, althoughsimilar to our HDS-6/HR-6 system,offers more channels and severalen hanced features that better meet thedemands of both studio and live stagemonitoring situations.FEATURESThe HDS-16 accepts eight mono and fourstereo inputs from a mixing console and routesthem to each HRM-16 via a 50-pin Centronicscable. This cable also transports the DCpower to each HRM-16 so they do not requirea power cable or “wall wart.” Each HDS-16has six Centronics outputs on the rear panel,and additional HRM-16’s can be daisy-chainedtogether. A maximum of eight HRM-16’s can bedriven from a single HDS-16. Since each HRM-16 can drive two headphone outputs, sixteenmusicians can be supplied with eight differentmixes from one HDS-16.The HRM-16 is a 16-channel mixer with apowerful headphone amplifi er. It also featuresa built-in microphone and talkback system thatallows communication between each musicianand the mix engineer in two modes:■ The Live/Stage Mode (default) allows theHDS-16 to communicate with all HRM-16’s. AllHRM-16’s with their TALK buttons depressedcan communicate with the HDS-16 but not withother HRM-16s.■ The Studio Mode establishes communicationamong all HRM-16’s and the HDS-16 muchlike an intercom system. The HRM-16 userpresses their TALK button to speak to all otherHRM-16’s and the HDS-16. This mode enablesdiscussion between the musicians andmix engineer between takes. Turn to page 5 tosee how to change modes.A solo system allows the engineer to auto-1

HDS-16/HRM-16 HEADPHONE DISTRIBUTION SYSTEMFigure 3: Changing the talkback mode inside the HDS-164

HDS-16/HRM-16 HEADPHONE DISTRIBUTION SYSTEMCHANGING THE TALKBACK MODEA jumper located inside the HDS-16 selectsbetween two talkback modes.1. Use a a Phillips screwdriver to unscrew themiddle two screws located near the top of thefront panel and all screws on the top.Figure 4: Detail of HDS-16 front panel:¼-inch inputs and Solo interface2. Remove the top cover. You will see the leftfrontcorner of the main PCB.3. Lift the jumper from the J-2 two-pin header andmove it to J-1 to change the talkback modefrom Live/Stage to Studio mode.SOLOThis feature allows musicians at the HRM-16sto hear rough and fi nal mixes or soloed tracksfrom the recording console without exiting tocontrol room or manually altering the HRM-16’slevel controls. The HDS-16 solo feature requirespatching the mix console’s main or mixoutput to the HDS-16’s channel D input.Note: After using the solo feature to listen tothe main console mix between takes, turn thechannel D level control off (to 0) on all HRM-16sbefore resuming recording. It is easy to forget toturn down channel D because you will still hearthe intended channel mix but the main consolemix will also be present.Figure 4 shows the solo interface, labeledCHANNEL D LEFT & RIGHT ONLY becauseall HRM-16 outputs are muted when the SOLObutton is depressed except Channel D. Aswitch can be plugged into the ¼-inch SOLOREMOTE SWITCH connector to turn the solofunction on/off. The SOLO ON LED indicatorlights when the solo function is active.Figure 5: HDS-16 rear panel5

HDS-16/HRM-16 HEADPHONE DISTRIBUTION SYSTEMNote: The remote and front panel switchesare wired in parallel. Although either switchcan activate the SOLO function, both mustbe in the off position to deactivate it.REAR PANELThe HDS-16 rear panel has six, 50-pin, Centronicsoutput connectors for the HRM-16s,AC-power, and ground switches (Figure 5).While male-to-male Centronics cables areavailable from computer re tail ers, Furmanmanufactures superior quality cables withtwisted pair con struction to optimize soundquality and reject cross-talk interference. Wehighly recommend using the 25 twisted pair,shielded, 25-ft cable supplied with each HRM-16. Contact Furman for other cable lengths andlinking adapt ers.Note: The maximum recommended cable runis 200 ft. See Table 1 on page 8 for informationabout cable losses beyond 100 ft.Push the AC-power switch up to the ON positionto power the HDS-16.The GROUND lift switch has two positions:LIFT: Signal ground is separate from chassisground. Earth ground (AC line cord) is connectedto the chassis only.GROUNDED: Signal ground is connected tochassis ground; use this setting unless there ishum or noise present.Note: Be sure all units are turned off before connectingan HDS-16 to one or more HRM-16’s.Figure 6: HRM-16 top panel6

HDS-16/HRM-16 HEADPHONE DISTRIBUTION SYSTEMHRM-16REMOTE MIXERThe HRM-16s receive their input signals andpower supply entirely through the Centronicscable from the HDS-16. Eight mono and fourstereo channels can be mixed and monitoredwith head phones or sent to a monitor system.The eight mono channels may be routed tothe EFFECTS SEND output on the rear panel.The effected signal is returned to the HRM-16through the stereo effect returns on the rearpanel and blended into the mix with the EF-FECTS RETURN level control. The HRM-16can be easily mount ed on a microphone standwith the thumb screws and clip provided, orplaced on a table or shelf.TOP PANELThe top panel provides:■ Level controls for four STEREO SOURCES;■ EFFECTS SEND, L/R pan, and level controlsfor each of eight mono channels;■ MASTER volume control;■ HI and LO shelving EQ controls with 12 dBboost and cut;■ TALKBACK VOLUME control, TALK button,and built-in microphone;■ EFFECTS RETURN level control.TALKBACKPress the TALK button and speak in the directionof the built-in microphone above the button(three small holes in the shape of a triangle).The microphone will pick up voices from up tosix ft away so you do not need to speak directlyinto it. Use the TALKBACK VOLUME control toalter the level of incoming talkback information.See page 4 for a complete description of thetalkback functions.REAR PANELThe HDS-16/HRM-16 system can be connectedin parallel or series without compromisingsound quality or power as long as no morethan four HRM-16s are connected in seriesfrom a single HDS-16 output.■ Parallel: Each HRM-16 is connected directly tothe HDS-16 in a star con fi g u ra tion.■ Series: One HRM-16 is connected directly tothe HDS-16 with additional HRM-16’s connected together in a daisy chain.Two, 50-pin, Centronics connectors are locatedon the right of the HRM-16’s rear panel:Figure 7: HRM-16 rear panel7

HDS-16/HRM-16 HEADPHONE DISTRIBUTION SYSTEMINPUT FROM HDS-16This connector delivers the input signals andpower supply from the HDS-16 (parallel) orfrom another HRM-16’s OUTPUT TO ADDI-TIONAL HRM-16’s connector (series).The remaining rear panel inputs and outputsare ¼-inch TRS connectors.■ EFFECTS SEND: Connect this mono output toan effects processor.■ EFFECTS RETURN: Use the L input for amono return (panned center) or L and R inputsfor stereo effects.■ LINE OUT: Use this mono, line-level output toroute the HRM-16 to a monitor system. TheLINE OUT and headphone signals are bothaffected by the MASTER VOLUME and HI/LOEQ controls.■ TALKBACK SWITCH REMOTE: Plug a momentaryswitch into this jack to use instead of(or in ad di tion to) the TALK button.OUTPUT TO ADDITIONALHRM-16’SThis connector carries the same signal sentto the INPUT FROM HDS-16 connector. Connectthis output to another HRM-16’s INPUTFROM HDS-16 connector to achieve a seriescon nec tion. An output that simply replicates theinput is often called input through because thesignal is sent out before being processed inthe device. As a result, the HRM-16’s top panelcontrols do not affect the OUTPUT TO ADDI-TIONAL HRM-16’s signal.HDS-16 AND HRM-16PRO TEC TION CIR CUITSHeadphoneImpedance32100 600Power Loss per100 feet of Cable-0.34 dB693 mW vs. 750 mW-0.16 dB746 mW vs. 770 mW-0.34 dB257 mW vs. 260 mWTable 1: Centronics cable losses per 100 feetHRM-16The head phone driver and power supply regulatorsare protected against over-temperatureand current overloads. The regulated powerdelivered from the HDS-16 to the HRM-16 isprotected against over-current by PolySwitchresettable fuses inside each HRM-16. Thesefuses prevent a defective HRM-16 from shuttingdown the HDS-16 or attached HRM-16s.Both devices reset au to mat i cal ly after clearingthe fault and removing power to the circuit.HDS-16The regulated power delivered from the HDS-16 to the HRM-16 is protected against shortedcables by an over-current crowbar circuit. Theaffected power supply turns off in responseto an over-current condition. Restore normaloperation by removing the defective cable orHRM-16 and turn off the power to the HDS-16for at least 30 seconds.The AC-line fuse is a 1-Amp Slo-Blo. Replaceit only with a fuse of the same type and rating.8

HDS-16/HRM-16 HEADPHONE DISTRIBUTION SYSTEMTHREE YEARLIMITED WARRANTYFurman Sound, Inc., having its principal placeof business at 1997 South McDowell Blvd.,Petaluma, CA 94954 (“Manufacturer”) warrantsits HDS-16/HR-16 (the “Product”) as follows:Manufacturer warrants to the original Purchaserof the Product that the Product soldhereunder will be free from defects in materialand workmanship for a period of three yearsfrom the date of purchase. The Purchaser ofthe product is allowed fifteen days from thedate of purchase to complete warranty registrationby mail or on-line at the Furman website.If the Product does not conform to this LimitedWarranty during the warranty period (as hereinabove specified), Purchaser shall notify Manufacturerin writing of the claimed defects. If thedefects are of such type and nature as to becovered by this warranty, Manufacturer shallauthorize Purchaser to return the Product tothe Furman factory or to an authorized Furmanrepair location. Warranty claims should be accompaniedby a copy of the original purchaseinvoice showing the purchase date; this is notnecessary if the Warranty Registration wascompleted either via the mailed in warrantycard or on-line website registration. Shippingcharges to the Furman factory or to an authorizedrepair location must be prepaid by thePurchaser of the product. Manufacturer shall, atits own expense, furnish a replacement Productor, at Manufacturer’s option, repair the defectiveProduct. Return shipping charges back to Purchaserwill be paid by Manufacturer.THE FOREGOING IS IN LIEU OF ALL OTH-ER WARRANTIES, EXPRESS OR IMPLIED,INCLUDING BUT NOT LIMITED TO THE IM-PLIED WARRANTIES OF MERCHANTABILITYAND FITNESS FOR A PARTICULAR PUR-POSE. Manufacturer does not warrant againstdamages or defects arising out of improperor abnormal use of handling of the Product;against defects or damages arising from improperinstallation, against defects in productsor components not manufactured by Manufacturer,or against damages resulting from suchnon-Manufacturer made products or components.This warranty shall be cancelable byManufacturer at its sole discretion if the productis modified in any way without written authorizationfrom Furman Sound. This warranty alsodoes not apply to Products upon which repairshave been affected or attempted by personsother than pursuant to written authorization byManufacturer.THIS WARRANTY IS EXCLUSIVE. The soleand exclusive obligation of Manufacturer shallbe to repair or replace the defective Product inthe manner and for the period provided above.Manufacturer shall not have any other obligationwith respect to the Products or any partthereof, whether based on contract, tort, strictliability or otherwise. Under no circumstances,whether based on this Limited Warranty orotherwise, shall Manufacturer be liable for incidental,special, or consequential damages.Manufacturer’s employees or representatives’ORAL OR OTHER WRITTEN STATEMENTSDO NOT CONSTITUTE WARRANTIES, shallnot be relied upon by Purchaser, and are not apart of the contract for sale or this limited warranty.This Limited Warranty states the entireobligation of Manufacturer with respect to theProduct. If any part of this Limited Warranty isdetermined to be void or illegal, the remaindershall remain in full force and effect.9

HDS-16/HRM-16 HEADPHONE DISTRIBUTION SYSTEMSERVICEBefore returning any equipment for repair,please be sure that it is adequately packedand cushioned against damage in shipment,and that it is insured. We suggest that yousave the original packaging and use it to shipthe product for servicing. Also, please enclosea note giving your name, address, phonenumber, e-mail address (if applicable), and adescription of the problem.All equipment being returned for repair musthave a Return Authorization (R/A) Number.To get a R/A number, please call the FurmanService Department at (707) 763-1010 ext.120 or 121, between 8 a.m. and 5 p.m., U.S.Pacifi c Time. Please display your R/A Numberprominently on the front of all packages.HDS-16 SPECIFICATIONSINPUTSBalanced, 50 kΩ, 90 dB CMRRINPUT IMPEDANCE50 kΩLINE OUTPUTSBalanced or singled ended, 50 Ω, 68 dB OCMRSINGLE CHANNEL GAIN21 dB; +4 dBu for maximum outputREMOTE SWITCHConnect tip to ring to mute all outputs except channel D(solo function)SIZE3.5” H x 19.0” W x 8.0” DWEIGHT9.4 lb (4.27 kg)HRM-16 SPECIFICATIONSLINE OUTPUTSBalanced or single ended, 50 Ω, 68 dB OCMRPOWER OUTPUT750 mW at 32 Ω, 770 mW at 100 Ω , 260 mW at 600 ΩREMOTE SWITCHConnect tip to ring to activate the talkback microphoneSIZE2.9” H x 11.0” W x 7.0” DWEIGHT3.5 lb (1.59 kg)HDS-16 AND HRM-16SYSTEM SPECIFICATIONSDISTORTION AND NOISE< 0.002% THD+Noise, 20 Hz - 20 kHz at full rated powerDYNAMIC RANGE> 105 dBFREQUENCY RESPONSE+0/-1 dB 13 Hz - 32 kHzPOWER REQUIREMENTSHDS-16: 120 VAC, 60 Hz, 82 W; HDS-16E: 230 VAC, 50Hz, 82 WCROSSTALK< -95 dB at 10 kHz10

Furman Sound, Inc.1997 South McDowell Blvd.Petaluma, California 94954-6919 USAPhone: 707-763-1010Fax: 707-763-1310Web: www.furmansound.comE-mail: info@furmansound.comMade in China0014 960138-2743 B