Instruction/ maintenance manual of the product 286 Harman
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286 U s e r Ma n u a l M ic P re a mp/ Pro ce ss o r Professional A udio Equipment ®.
286 IMPOR T ANT SAFET Y INFORMA TION W ARNING FOR Y OUR PRO TECTION READ THE FOLLO WING: KEEP THESE INSTR UCTIONS HEED ALL W ARNINGS FOLLO W ALL INSTR UCTIONS THE APP ARA TUS SHALL NO T BE EXPOSED T O DRIPPING OR SPLASHING LIQUID AND NO OBJECT FILLED WITHI LIQUID , SUCH AS V ASES, SHALL BE PLACED ON THE APP ARA TUS.
286 DecLara tIon of conforMIty Manufacturer’ s Name: dbx Professional Products Manufacturer’ s Address: 8760 S. Sandy Parkway Sandy , Utah 84070, USA declares that the product: Product name: dbx 286s Note: Product name may be suffixed by the EU.
286 Section 1 - Introduction ........................................1 1.1 Service Con tact Inf o ...................................... 2 1.2 W arr anty ...................................................... 3 Section 2- Operating Controls ..........
286 Section 1 - Introduction Congr atulati ons on ch oosin g th e dbx 286s Mic Pr eamp/Pr ocessor . The 286s is a powerful, user-frien dly unit, pr ovidin g con cise an d intuitive con tr ols for all .
286 1 .1 Service Contact Info If you requir e techni cal support, contact dbx Custom er Servi ce . Be pr epar ed to accurately describe th e pr oblem. Know th e seri al n umber of your unit - this is prin ted on a sti ck er attached to th e bottom pan el.
286 1 .2 W arranty This warran ty is vali d only for th e ori gin al purchaser an d only in th e United States . 1. The warr an ty registr ati on car d that accompanies this pr od uct m ust be m ailed within 30 days after pur chase d ate to valid ate this warr an ty .
286 2.1 Rear Panel s s s s s MIC INPUT Jack The 286s MI C INPUT jack supports pr ofessi on al an d hom e stu dio mi cr oph ones by acceptin g either balan ced or unbalan ced sign al thr ough an XLR conn ector . Pins 2 an d 3 ar e symmetri cally balan ced and floatin g; th us , either can be used as “H O T” without difficulty .
286 T o use the INSERT jack to MUL T the preamp out (i.e ., to provid e an output with a buffer ed version o f th e sign al after th e Mi c Preamp cir cuitry , but before th e Pr ocessing Secti on), in sert a Mon o 1/4” plug fully in to the INSERT jack, th en pull th e plug out on e click.
286 of th e mi c sign al an d ad dition al gain e xceeds th e cir cuit’s capabiliti es; red u ce gain vi a the MIC G AIN con trol. Set th e MI C G AIN contr ol so that th e CLIP LED never li gh ts . The LEVEL LEDs can also be used to ch eck th e stren gth o f th e input sign al.
286 Compr essor DRIVE Control The DRIVE con tr ol determin es th e over all amoun t o f gain red u cti on by setting th e si gnal level goin g in to the gain con tr ol cir cuitry . T urnin g DRIVE clockwise will incr ease th e input sign al, an d ther ef or e incr ease th e amoun t o f appli ed gain red u ction.
286 Enhancer Note: The low an d high fr equen cy enhancers ar e o ff wh en their r espective DET AIL controls are set to OFF . LF DET AIL Control The 286s Low Fr equen cy enhancem en t sim ultaneously appli es an 80Hz boost an d 250Hz cut to the pr ogr am.
286 Readjust as need ed to gate out n oise -- extern al, as well as hiss fr om th e unit. The 286s other pr ocessin g can add substan ti al gain to a si gnal, especi ally at hi gher settin gs , th ereby incr easin g the n oise floor . Output GAIN (dB) Control and CLIP LED The OUTPUT G AIN con trol sets th e level at th e lin e output.
286 10 Section 3 - Basic Operation 3.1 Connecting the 2 8 6s to Y our S ystem The 286s can be used with an y low-level mi croph on e si gnal (vi a th e MI C INPUT) or any line-level d evi ce (via th e LINE INPUT).
286 Section 3 Basic Operation 11 286s Press th e HI GHP ASS button In to cut signals below 80Hz by 18dB/octave , effectively filtering out mic pr o ximity effects, h um, rumble , wind and oth er low frequen cy “un d esirables .” Use th e MI C GAIN con tr ol to achi eve the best d efiniti on and char acter possible fr om your micr oph one .
286 Section 3 Basic Operation 12 by blowing air thr ough a con stricted (n arr ow) m outh opening or acr oss th e edg e o f th e teeth, as in the “s” an d “sh” in “sash.
286 Section 3 Basic Operation 13 286s to pass. If th e input si gnal is below th e thr esh old, th e gate “ closes” and the input si gnal is attenu ated . With suffici en t atten uati on, it effectively cuts that si gnal o ff. On th e 286s , the amoun t o f attenu ati on is set with th e EXP ANSION RA TIO con tr ol.
286 Section 3 Basic Operation 14 slow the compr essor’s r elease time , set the DENSITY contr ol to 0. Set the De-Esser fr equen cy contr ol to 4kHz (12:00 positi on). Adjust th e De-Esser THRESH OLD contr ol to r ed uce th e vocalist’s sibilan ce .
286 Section 3 Basic Operation 15 286s Enhancer Note: The Hi gh and Low Fr equen cy Enhan cers are OFF wh en th eir respective DET AIL contr ols are set to th e “o ff” position.
286 Section 4 Problems, Possible Causes, Solutions 16 Section 4 - Problems, Possible Causes, Solutions Always verify that the pr oblem is n ot in the sour ce m ateri al being fed in to th e 286s , or in the oth er parts o f the system. If you still have problem s wh en using th e 286s , con sid er th e followin g r emedi es .
286 Section 4 Problems, Possible Causes, Solutions 17 286s that the r ed (-) THRESH OLD LED (located to the ri gh t o f the EXP ANSION RA TIO con trol) d oes not li gh t until th e r equir ed sign al is finish ed.
286 Section 5 T echnical Support and Factory Service 18 Section 5 - T echnical Support and Factory Service The 286s is an all-soli d-state pr odu ct with compon en ts chosen f or hi gh perf orman ce an d ex cellen t reli ability .
286 19 286s MIC INPUT Floating balan ced , Pin 2 Hot Impedance ~ 4.2k Ω Balanced Maximum Level 0.25Vrms , Gain=30dB Gain Adjustmen t Rang e +0dB ... +60dB Phantom P ower +48VDC, applied to XLR pin s 2 an d 3 through 6.
286 Section 6 T echnical Specifications 20 ENHANCER HF Detail Characteristi c Progr am-con trolled sh elvin g equ alizer , appro xim ately 15dB maxim um HF boost LF detail Char acteristi c Bell-shaped boost @ 80Hz, bell-shaped cut @250Hz, rati o is appr o ximately 2:1 EXP ANDER/GA TE Threshold Ran ge OFF .
286 21 286s Section 7 - Block Diagram.
286 22 286s.
286 23 286s.
286 8760 South Sand y P arkway • Sand y , U tah 84070 Ph on e: (801) 568-7660 • Fax (801) 568-7662 In t’l Fax: (801) 568-7583 Visit us onlin e at www .
An important point after buying a device Harman 286 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Harman 286 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Harman 286 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Harman 286 you will learn all the available features of the product, as well as information on its operation. The information that you get Harman 286 will certainly help you make a decision on the purchase.
If you already are a holder of Harman 286, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Harman 286.
However, one of the most important roles played by the user manual is to help in solving problems with Harman 286. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Harman 286 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
