Russound SS-4.2 Manuel utilisateur
SS-4.2 / SS-6.2
Instruction Manual
Impedance Matching
Speaker Selector
Introduction
Thank you for purchasing a quality Russound product. The Russound SS-4.2 and
SS-6.2 speaker selectors permit either four or six pair of speakers to be turned
on and off through individual switches on the front panel. Multiple pairs may be
engaged simultaneously if desired. When multiple pairs are engaged, impedance
matching protection must be employed to protect the amplifier from damage.
The SS-4.2 and SS-6.2 have this impedance matching protection built in, when
selected by the Impedance switch on the rear panel. They also have built-in cir-
cuit overload protection that disengages the amplifier signal if it exceeds the
limits of the selector. After being tripped, the amplifier must be shut off before
the SS-4.2 or SS-6.2 will automatically reset itself. If this occurs, check all sys-
tem components for proper connections and use.
Features
•Designed for quality audio performance and long-term reliability
•Impedance matching and automatic overload protection compatible with high-
powered amplifiers
•Bypass mode for higher efficiency when using remote impedance-matching
volume controls
•Isolated inputs provide safe connection to bridge or floating type amplifiers
•Spring-loaded speaker terminals accommodate up to 12-gauge wire
•Designed for use with 8 ohm speakers
Modes of Operation
The SS-4.2 and SS-6.2 may be used in one of two modes of impedance match-
ing: (Please note: impedance matching is required, but only once in the system.)
With internal impedance matching (Impedance switch set to “IN”)
This method of impedance matching uses the SS-4.2/6.2’s internal high-pow-
ered resistors to eliminate the need for external impedance matching devices.
With external impedance matching (Impedance switch set to “BYPASS”)
This method requires the use of external impedance matching devices such as
the Russound LPTx or ALTx volume controls, as the selector’s overload protec-
tion and impedance matching will be bypassed. In this mode, using external
impedance matching volume controls will allow higher system efficiency and a
configurable level of impedance matching for specific amplifier needs beyond
the scope of the selector alone.
Speaker Requirements
All speakers should be 8 ohms minimum.
2
Amplifier Requirements
With internal impedance matching (switch set to “IN”)
A 4-ohm stable amplifier is required.
With external impedance matching volume controls (switch set to “BYPASS”)
A 4 to 8-ohm stable amplifier may be used.
(Note: overdriving your amplifier will potentially cause damage to the amplifier,
selector, and volume controls, as overload protection is bypassed.)
Amplifier Connection
Note: use ONLY the amplifier’s A or Speaker 1 output. Do not use the B or
Speaker 2 output.
Using 4-conductor speaker wire (16-12 gauge), connect the A or Speaker 1 out-
put of an audio amplifier to the amplifier input connection on the SS-4.2/6.2.
Strip off 1/4” of insulation from the wire and tightly twist the copper conductor
to eliminate loose or frayed ends. Press down the spring terminal tab on the
SS-4.2/6.2 and insert the wire, being careful to keep channel identity and polari-
ty consistent.
Speaker Connection
With internal impedance matching
Using 4-conductor speaker wire (16-12 gauge), connect the first pair of speak-
ers to the Speaker 1 inputs on the SS-4.2/6.2. Strip off 1/4” of insulation from
the wire and tightly twist the copper conductor to eliminate loose or frayed
ends. Press down the spring terminal tab of the SS-4.2/6.2 speaker 1 output
and insert the wire. Connect the other end of the wire to each speaker, being
careful to keep channel identity and polarity consistent.
Repeat the procedure for each pair of speakers that will be connected to the
SS-4.2/6.2.
With external impedance matching volume controls
Note: The recommended volume controls for the SS-4.2/6.2 are the Russound
series LPTx and ALTx. Consult the instruction manual of the impedance match-
ing volume control to determine the correct impedance matching settings to
employ for the specific amplifier and speakers.
Using 4-conductor speaker wire (16-12 gauge) connect one end of the wire to
the speaker output of the SS-4.2/6.2. Connect the other end of the wire to the
input connector of the impedance matching volume control. Using a section of
2-conductor (16-12 gauge) speaker wire, connect the wire from the output of
the volume control to each speaker.
3
Speakers
L+
INPUT
L- R- R+
L+ L- R- R+
OUTPUT
SS-6
L
R
SPEAKER 2
~120VAC
~60Hz
12A
THIS UNIT MUST BE
EARTH GROUNDED
FOR HOME OR OFFICE USE
Tested to Comply
with FCC Standards
Conforms to
UL 6500
Certified to
CSA C22.2 No1-94
68835
+ - - +
+ - - +
R
L
SPEAKER 1
AMPLIFIER
5
6
3
4
1
2
L+R+
L-R-L+R+
L-R-L+R+
L-R-L+R+
L-R-
S
P
E
A
K
E
R
S
S
P
E
A
K
E
R
S
NEWMARKET, NH, U.S.A.
IMPEDANCE
BYPASS IN
ALTx
Impedance Matching
Volume Control
SS-6.2
4 - 8-ohm Stable Amplifier
Speaker wire
Speaker wire
Speaker wire
L+
INPUT
L- R- R+
L+ L- R- R+
OUTPUT
IMPEDANCE
BYPASS IN
Typical connections with external impedance matching
(Impedance switch set to BYPASS)
Impedance matching volume controls are connected between the SS-6.2 and
the speakers, providing external impedance matching. Impedance matching
devices are required for all speakers regardless of ohm rating.
4
Speakers
SS-6
L
R
SPEAKER 2
~120VAC
~60Hz
12A
THIS UNIT MUST BE
EARTH GROUNDED
FOR HOME OR OFFICE USE
Tested to Comply
with FCC Standards
Conforms to
UL 6500
Certified to
CSA C22.2 No1-94
68835
+ - - +
+ - - +
R
L
SPEAKER 1
AMPLIFIER
5
6
3
4
1
2
L+R+
L-R-L+R+
L-R-L+R+
L-R-L+R+
L-R-
S
P
E
A
K
E
R
S
S
P
E
A
K
E
R
S
NEWMARKET, NH, U.S.A.
IMPEDANCE
BYPASS IN
SS-6.2
4-ohm Stable Amplifier
Speaker wire
Speaker wire
IMPEDANCE
BYPASS IN
Typical connections with internal impedance matching
(Impedance switch set to IN)
With internal impedance matching (impedance switch set to IN, speakers are
connected directly to the SS-6.2 with no need for additional impedance
matching volume controls.
5
Room Labels
Choose the appropriate room label from the included label sheet and place it
above the appropriate switch on the front panel of the SS-4.2/6.2. The labels
are non-adhesive and slide into a groove machined into the aluminum front
panel. This allows for easy re-assignment.
Technical Specifications
Power Handling: SS-4.2 200 W/CH peak, 100 W/CH RMS
SS-6.2 200 W/CH peak, 70 W/CH RMS
Frequency Response: +/- 0dB 20Hz to 20kHz
Wire: 16 AWG to 12 AWG standard speaker wire
Dimensions: SS-4.2 8.5"W X 1.80"H X 6.25"D
(216 x 45 x 159 mm)
SS-6.2 11.5"W X 1.80"H X 6.25"D
(292 x 45 x 159 mm)
Weight: SS-4.2 2.75 lb.(1.2 kg)
SS-6.2 3.5 lb. (1.6 kg)
Warranty
The Russound SS-4.2 and SS-6.2 are fully guaranteed against all defects in
materials and workmanship for Ten (10) years from the date of purchase. During
this period, Russound will replace any defective parts and correct any defect in
workmanship without charge for either parts or labor.
For this warranty to apply, the unit must be installed and used according to its
written instructions. If service is necessary, it must be performed by Russound.
The unit must be returned to Russound at the owner's expense and with prior
written permission. Accidental damage and shipping damage are not considered
defects, nor is damage resulting from abuse or from servicing by an agency or
person not specifically authorized in writing by Russound.
This Warranty does not cover:
• Damage caused by abuse, accident, misuse, negligence,
or improper installation or operation
•Power surges and lightning strikes
•Normal wear and maintenance
•Products that have been altered or modified
•Any product whose identifying number, decal, serial number, etc.
has been altered, defaced or removed
6
Russound sells products only through authorized Dealers and Distributors to
ensure that customers obtain proper support and service. Any Russound prod-
uct purchased from an unauthorized dealer or other source, including retailers,
mail order sellers and online sellers will not be honored or serviced under
existing Russound warranty policy. Any sale of products by an unauthorized
source or other manner not authorized by Russound shall void the warranty on
the applicable product.
Damage to or destruction of components due to application of excessive power
voids the warranty on those parts. In these cases, repairs will be made on the
basis of the retail value of the parts and labor. To return for repairs, the unit
must be shipped to Russound at the owner's expense, along with a note explain-
ing the nature of service required. Be sure to pack the unit in a corrugated con-
tainer with at least three (3) inches of resilient material to protect the unit from
damage in transit.
Before returning a unit for repair, call Russound at (603) 659-5170 for a Return
Authorization number. Write this number on the shipping label and ship to:
Russound
ATTN: Service
5 Forbes Road
Newmarket, NH 03857
Due to continual efforts to improve product quality as new technology and tech-
niques become available, Russound/FMP, Inc. reserves the right to revise
system specifications without notice.
7
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