1. DL manuals
  2. JEFF ROWLAND
  3. Amplifier
  4. CONCERTO
  5. Owner's Manual

JEFF ROWLAND CONCERTO Owner's Manual

Manual is about: CONCERTO Stereo Preamplifie

Summary of CONCERTO

  • Page 1

    Ow n e r ’ s m a n ua l co n c e rto s t e r eo p r e a m p l i fi e r.

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . Ta b l e o f c o n t e n t s ow n e r ’ s m a n ua l co n c e rto s t e r eo p r e a m p l i fi e r introduction 2 product features 3 package contents 4 initial inspection 5 maintenance & cleaning 6-7 protection...

  • Page 3

    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 2 if you have any additional questions regarding the installation or operation of the con...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 3 • two pairs xlr input connectors for balanced system configurations. • three pairs rca input connectors for unbalanced system configurations. • two pairs of parallel, high-current, balanced line level preampli...

  • Page 5

    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 4 p a c k a g e c o n t e n t s ow n e r ’ s m a n ua l co n c e rto s t e r eo p r e a m...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 5 inspect the shipping container for damage. If any portion of the shipping container, packing material, preamplifier, or accessories are damaged or missing, notify your dealer and the shipper (if a claim is to ...

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    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 6 all jrdg products are designed to provide a lifetime of enjoyment and listening pleasur...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 7 p r ot e c t i o n s y s t e m s the concerto stereo preamplifier is equipped with internal fuses for pro tection against excessive ac current draw; however, since no protection circuitry or system can complet...

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    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 8 locate the preamplifier as close as possible to its final installation point. Allow acc...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 9 the jrdg concerto stereo preamplifier has been designed to operate at the highest level of efficiency and performance in any normal operating situation; however, there are a few impor- tant use and care princi...

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    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 10 input mute bal l bal r vol vol 1 2 3 4 6 5 the concerto stereo preamp lifier is equipp...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 11 (7) battery replacement: when the remote begins to become weak or will not function, it is likely necessary to replace the battery. Access to the battery is gained by removing the two phillips head screws tha...

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    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 12 1 2 6 4 5 7 3 (1) input indicators: inputs 1 through 5 have a small indicator light ab...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 13 if desired, the volume display can be config- ured to turn off 5 seconds after receiving any command from the front panel or the remote transmitter. Please contact your dealer about this function. The volume ...

  • Page 15

    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 14 (1) unbalanced inputs: if you are using unbalanced rca interconnects from your source ...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 15 (3) bypass inputs: if the concerto is installed in a home theater or surround sound system, the left front and right front output connections from the surround processor should be installed in the bypass inpu...

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    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 16 b a d c please strictly follow the following steps in order before operating your conc...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 17 power conditioning: ac power conditioners and ac mains power cables are a common accessory in many high performance audio and video systems and can be used to improve the quality of reproduction in certain in...

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    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 18 overall gain 20 db gain range 99.5 db, 199 equal increments gain resolution 0.5 db, +/...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 19 ow n e r ’ s m a n ua l co n c e rto s t e r eo p r e a m p l i fi e r 12.9 in. (328 mm) 3.2 in. (80 mm) 11.5 in. (29 2. Mm) 2.6 in. (6 7 mm) 17.3 in. (440 mm) d i m e n s i o n s.

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    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 20 figure 1: partial removal of ac receptacle is necessary to access the jumpers that are...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 21 figure 2: location of jumpers on back of the rear panel step 4: locate jumper j17 on the rear panel board of the unit. Using needle-nose pliers, move the jumper from between pins 2 and 3 to pins 1 and 2, disp...

  • Page 23

    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 22 ow n e r ’ s m a n ua l co n c e rto s t e r eo p r e a m p l i fi e r figure 4: locat...

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    © j e f f r ow l a n d d e s i g n g r o u p 2 0 07. A l l r i g h t s r e s e r v e d . 23 step 8: test the remote with the concerto stereo preamplifier to make sure that the units operate properly together. Step 9: after verifying proper operation, replace the remote housing and reinstall the two ...

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    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1 24 o p t i o n a l a d j u s t m e n t s ow n e r ’ s m a n ua l co n c e rto s t e r eo ...

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    P o b ox 7 2 3 1 , c o lo r a d o s p r i n g s , c o lo r a d o 8 0 9 3 3 u s a e - m a i l : j r d g @ j e f f r ow l a n d . C o m w w w. J e f f r ow l a n d . C o m t e l e p h o n e ( 7 1 9) 47 3 -1 1 8 1.