Rolls Matchbox DB25 Bruksanvisning

Rolls Inte kategoriserad Matchbox DB25

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DB25
MATCHBOX
Direct Box
Owners Manual
LIMITED WARRANTY
This product is warranted to the original consumer purchaser to be free
from defects in materials and workmanship under normal installation, use and
service for a period of one (1) year from the date of purchase as shown on the
purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be limited
to repair or replacement (at our option), during the warranty period of any part
which proves defective in material or workmanship under normal installation,
use and service, provided the product is returned to Rolls Corporation, TRANS-
PORTATION CHARGES PREPAID. Products returned to us or to an authorized
Service Center must be accompanied by a copy of the purchase receipt. In the
absence of such purchase receipt, the warranty period shall be one (1) year from
the date of manufacture.
This warranty shall be invalid if the product is damaged as a result of
defacement, misuse, abuse, neglect, accident, destruction or alteration of the
serial number, improper electrical voltages or currents, repair, alteration or
maintenance by any person or party other than our own service facility or an
authorized Service Center, or any use violative of instructions furnished by us.
This one-year warranty is in lieu of all expressed warranties, obligations
or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILI-
TIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
SHALL BE LIMITED IN DURATION TO THE ONE YEAR DURATION OF
THIS WRITTEN LIMITED WARRANTY. Some states do not allow limitations
on how long an implied warranty lasts, so the above limitation may not apply to
you.
Salt Lake City,
Utah 8/99
IN NO EVENT SHALL
WE BE LIABLE FOR ANY
SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES
FOR BREACH OF THIS OR
ANY OTHER WARRANTY,
EXPRESSED OR IMPLIED,
WHATSOEVER. Some states do
not allow the exclusion or
limitation of special, incidental or
consequential damages so the
above limitation or exclusion
may not apply to you. This
warranty gives you specific legal
rights, and you may also have
other rights which vary from state
to state.
DB25 Matchbox
• Converts high-impedance to low-
impedance & vice-versa
• Ground Lift for "hum" reduction
• Attenuator switch for connection
to line level or speaker level
signals
The DB25 is a passive direct box
for converting a high impedance
signal such as a direct out from a
bass amplifier, to a low impedance
signal such as a snake input and a
mixer's microphone input. The
Ground Lift is provided to reduce
possible ground hum or buzz.
0 dB
-20 dB
-40 dB
ATTENUATOR
MATCHBOX
DB25
GROUND LIFT
GND LIFT
IN
OUT
INTRODUCTION
Thank you for your purchase of the DB 25 MATCHBOX, a
passive direct box designed to take high impedance signals
and convert them to low impedance. The unit features an
Attenuator switch for padding the input signal by either 20 or
40 dB, and a Ground Lift switch which may reduce unwanted
hum caused by "ground loops".
DESCRIPTION
Input Jacks: 1/4" unbalanced jacks for receiving line or in-
strument level signals.
Attenuator switch: Reduces the input signal by the amount
indicated.
Ground Lift Switch: In the "Lift" position, the ground connec-
tion of the XLR jack is disconnected from the chassis.
Output Jack: XLR balanced jack for connection to a mixing
board or other balanced input device.
SPECIFICATIONS
Frequency Response: 50 - 15kHz +/- 3 dB
Output Impedance: 600 Ω
Input Impedance: 50K Ω
Max Output Level: +4 dBm
EXAMPLE APPLICATIONS
J1
J1
J1
J1J1
PHONE 1/4
PHONE 1/4
PHONE 1/4
PHONE 1/4PHONE 1/4
1
1
1
11
2
2
2
22
3
3
3
3 3
J3
J3
J3
J3J3
XLR M PC
XLR M PC
XLR M PC
XLR M PCXLR M PC
T1
T1
T1
T1T1
50K - 600 CT
50K - 600 CT
50K - 600 CT
50K - 600 CT50K - 600 CT
8
8
8
8 8
7
7
7
7 7
5
5
5
5 5
6
6
6
66
SW1B
SW1B
SW1B
SW1BSW1B
ALPHASW
ALPHASW
ALPHASW
ALPHASWALPHASW
-20
-20
-20
-20-20
R1
R1
R1
R1R1 10K
10K
10K
10K10K
1
1
1
11
2
2
2
22
4
4
4
44
3
3
3
3 3
SW1A
SW1A
SW1A
SW1ASW1A
ALPHASW
ALPHASW
ALPHASW
ALPHASWALPHASW
0 Db
0 Db
0 Db
0 Db0 Db
J2
J2
J2
J2J2
PHONE 1/4
PHONE 1/4
PHONE 1/4
PHONE 1/4PHONE 1/4
-40
-40
-40
-40-40
R2
R2
R2
R2R2 100K
100K
100K
100K100K
R3
R3
R3
R3R3
1K
1K
1K
1K1K
1
1
1
1 1
2
2
2
22
3
3
3
3 3
SW2A
SW2A
SW2A
SW2ASW2A
DPDT
DPDT
DPDT
DPDTDPDT
LIFT
LIFT
LIFT
LIFTLIFT
Date:
Date:
Date:
Date:Date: December 22, 1992
December 22, 1992
December 22, 1992
December 22, 1992 December 22, 1992 Sheet
Sheet
Sheet
SheetSheet of
of
of
ofof
Siz e
Siz e
Siz e
Siz eSiz e Document Number
Document Number
Document Number
Document NumberDocument Number REV
REV
REV
REVREV
A
A
A
AA DB25.SCH
DB25.SCH
DB25.SCH
DB25.SCHDB25.SCH
Title
Title
Title
TitleTit le
DB25 MATCHBOX
DB25 MATCHBOX
DB25 MATCHBOX
DB25 MATCHBOXDB25 MATCHBOX
ROLLS CORPORATION
ROLLS CORPORATION
ROLLS CORPORATION
ROLLS CORPORATIONROLLS CORPORATION
0 dB
-20 dB
-40 dB
ATT ENUATOR
MATCHBOX
DB25
GROUND LIFT
GND L IFT
IN
OUT
AMPLIFIER
MIXING BOARD
0 dB Setting
BASS GUITAR
0 dB
-20 dB
-40 dB
ATT ENUATOR
MATCHBOX
DB25
GROUND LIFT
GND L IFT
IN
OUT
-40 dB Setting
SPEAKER OUTPUT
0 dB
-20 dB
-40 dB
ATTENUATOR
MATCHBOX
DB25
GROUND LIFT
GND LIFT
IN
OUT

Produktspecifikationer

Varumärke: Rolls
Kategori: Inte kategoriserad
Modell: Matchbox DB25

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