Von Schweikert Audio VR-5 manuale d’uso

1 V V O O N N S S C C H H W W E E I I K K E E R R T T A A U U D D I I O O W W O O R R L L D D - - C C L L A A S S S S S S P P E E A A K K E E R R S S Y Y S S T T E E M M S S F F O O R R A A U U D D I I O O A A N N D D H H O O M M E E T T H H E E A A T T E E R R V V R R - - 5 5 A A N N N N I I V V E E R R S S A A R R Y Y I I N N S S T T R R U U C C [...]

2 TABLE OF CONTE NTS I MPORTANT NOTES........................................................................................................PAGE 3 BREAK-I N..........................................................................................................................PAGE 3 I NI TI AL SETUP................................................[...]

3 IMPORTANT NOTES : Please read the following instructions regarding setup, as i maging and bass response must be optimized to y our particular room. Since every listening room will have di fferent dimensional ratios and reflective/absorptive coefficients, ea ch setup will be different. A thorough bre ak-in must be conducted in order to realize the[...]

4 SETUP 1. P lease do not install the spikes until the proper placem ent has been determ ined . If you try to move the speakers around with the spi kes installed, you can damage your floor and/or rip out the spikes, so please be careful and install th e spikes only when you are confident that the speakers have been placed i n the proper position. Y[...]

5 the best image focus and widest s ound stage. However , sinc e y our tas te ma y var y , y ou may wel l pre fe r the extra depth achieved with no toe in; i.e., t he speakers parallel to the side walls. ON SHORT W ALL: Placing the speake rs on the sho rt wall and sit ting far back in the long end of the room may give y ou a concert hall experience[...]

6 CARPETED FLOORS : Install the spikes after break in – this is easily acco mpl ish ed with tw o peo ple , one t ipping the speaker back while the other ins talls the spikes. Be careful not to let the M/T unit f all off the woofer module! If on e person installs the spikes, remove the M/T modules before attempting to install the spikes. Make su r[...]

7 and capacitors generate a hi gh im pedance to bass frequencies -- it’s like pour in g wa te r on the side of a hill: the water will never travel uphill against gravity ! WOOFER MODULE BI NDING POSTS: The W BT P latinum Signature binding posts suppl ied on th e VR-5 Anniversary are t he finest quality available and can accept raw wire, sp ade lu[...]

8 HORIZ ONTAL BI -AMP I NG: I f two differ ent stere o a mps are ava ilable, one amp can drive the woofers and the other amp, perhaps of lower power, can drive the M/T’s. This works well with large solid state amps driving the woofe rs, with a smaller tube a mp driving the upper end. We have heard of sy stems with 200 watts per channel on t he wo[...]

9 crossover circuit, which achieves the desired phase-consistent sound field over a wide listening area. I f you must situate the speakers close t ogether, with a close lis tening position for near field applications (such as in a recording studi o), y ou may not need to toe the speakers in towards y ou, but y ou will nee d to sit with y our ears o[...]

10 pink noise “ball.” I f y our former speakers were placed clo se together to achieve center fill , try spreading the VR-5’s further apart. Their wide dispersion enables a larg er sound stage. *Note: if the speakers can not be separat ed more than a f ew feet due to room considerati ons, as in a video application , it may be necessary t o to[...]

11 BASS RES PONSE TUNING BACKGROUND INFORMATION: Sinc e en cl ose d ro oms will af fe c t the bass resp on se due to sta nd ing wave formation, a woofer tuning feature has been designed into the VR series of speakers. Deep bass in the 20 -40Hz range is highly desirable in a reference speaker design, since h all reverberation at low frequencies is a[...]

12 of the f ront wa ll, rear wa ll, side walls, and the f loor. These reflections both re inforce and cancel the original direct wave, de pending on the wave length vs. the path leng th. I f the path leng th is an even multiple of the direct wave at any one given frequency , the reflection will reinforce the first wave since it will be mathematical[...]

13 B). If t he frequency range between 20-30Hz sounds too powerful i n y our particular room, simply place a large handful of the Dacron i n each vent tub e; this will lower the efficiency of the vent tunin g . I f the bass is still t oo loud, place another handful in each vent. I f the l ow frequency range has come into proper balance , stop there[...]

TROUBLE SHOOTING Your VR dealer s hould have the necessary resources to investi gate any problem s y ou may expe ri en ce when sett ing up a world class reference system. However, if you find that y ou need specialized h elp, either in acoustical or electronic i nteractions not well understood by y our dea le r, plea se don’ t hes ita te to conta[...]

which are th e bou ndary surfaces halfway between the list ener and the speaker cabinets. This inc lu de s the ceiling, walls, and floor. Hard plaster ceilings will reflect treble energy back down towards the listener, and should be treated with acoustic ti les (the soft and porous type ) or dampi ng pads made from foam or fiberglass. The walls can[...]