DATA SHEET
16dB
4dB
SPLITTER
MIXER
ROUTER
SRM 66
1 432
MIX INPUT HEADROOM
65
EXE
DATA
PWR
SHIFT
VIEWING
N
ANGLE
X
M
I
A
M
COPY
Out1: IN3IN2IN1
-9
+2
IN5IN4
-100 -6
MSTIN6
-20 0
LIM
+4
General Description
e SRM 66 provides a cost effective solution for systems
requiring any combination of zone distribution, room combining, and remote level control. Split, route, and mix functions are
implemented with a six input, six output matrix mixer. e SRM
66 allows independent routing and mix-level adjustment of any
Input to any Output.
Control consists of a backlit LCD, five buttons and a Data
wheel. All programming is accomplished using eleven easily accessible edit pages. Six pages control Output programming, four
for Group programming and one for Memory functions.
Inputs and Outputs are line-level balanced and equipped
with Euroblock connectors. Rear panel Gain switches on each
Input and Output allow -10 dBV or +4 dBu sensitivity. Front
panel Mix Input Headroom LEDs indicate the remaining headroom for each of the six inputs at 4 dB and 16 dB.
Programmable Output Limiters prevent mixer overload. If
Output level exceeds the Limit reshold, all six mix levels for
the given Output are reduced, maintaining the proper mix.
Each Output features an internally switchable 2nd-order 80
Hz Highpass filter. ese filters are useful in conjunction with
constant-voltage line transformers or small sound-reinforcement
speakers.
e SRM 66 uses Output Groups to “link” attenuation levels
and Limiter gain reduction of one or more Outputs. Outputs
may be assigned to one of six Output Groups. For example, a stereo Output pair would typically be assigned to the same Output
Group. is ensures that they limit together and are controlled
by a common Output Group attenuation or Remote. Output
Group Levels are the only parameters not affected by Memory
changes.
Outputs are assigned to any one of the six possible Output
Groups or none. Remotes are then assigned to any one of the
six possible Output Groups or to the Master Group. e Master
Group is configured by assigning any number of the six possible
Groups to the Master Remote. For example, you have a six zone
system and have a Remote assigned to control the level in each
SRM 66
SPLITTER ROUTER MIXER
zone. You can then assign any number of the Output Groups to
the Master Remote, allowing all zones to be controlled by one
Remote.
Mix configurations are saved in up to 24 non-volatile
Memories stored in EEPROM, requiring no batteries. Memories
may be recalled via the front panel LCD screen or the rear panel
Memory Recall Port (MRP). e MRP allows remote contact
closures to recall any of the 24 Memories. Advanced MRP users
can completely program the MRP closure-to-memory-mapping
functions via SRM Exchange software and the Rane DSC 1 accessory. e optional Rane MRS 4, RCP 3 and RCP 4 connect
to the MRP for easy room combining and memory recall.
e SRM 66 provides a Remote Interface Port (RIP) which
supports up to seven optional SR 1L “Smart” digital Remote
controls. Each Remote may be assigned to any one of the six
possible Output Groups or to the Master Group. e Remotes
control the level of a Output Group, not Output level. Each of
the Memories stored in the SRM 66 may have unique Output
Group assignments for Outputs and SR 1L Remotes. is allows flexible room combining and system reconfiguration. All
Remotes assigned to an Output Group display the level of the
Output Group. e Remote Interface Port is a powered, half
duplex, (RS-485) party line system using 5 wires, allowing any
combination of “star” and/or “chained” wiring. e SR 1L also
supports encoder lockout and Master/Slave functionality where
one remote controls Output Groups across multiple SRM 66s.
e FP Lock function locks out all front panel SRM 66 control except for Output Group Levels and Memory Recall. e SR
1L Remotes can still control Output Group Levels with the FP
Lock rear panel switch engaged. With FP Lock, all edit pages are
viewable but not changeable.
e SRM 66 and SR 1Ls can be controlled via AMX or
Crestron room controllers using the SRM 66’s (RS-485) Remote
Interface Port (see RaneNotes “Using a Control System with and
SRM 66” and “Using SR 1Ls with other Rane Products”). All
RaneNotes are available at www.rane.com.
Features
• 6 Inputs Split, Route and/or Mix to 6 Outputs
• Programmable Input Mix & Output Level Controls & Limiters
• Programmable Output & Remote Output Group Assignments
• Master Group Level Capability (remote optional)
• Up to Seven SR 1L Digital Remotes (optional)
• 24 Non-Volatile EEPROM Memories with Remote Recall
• Balanced Euroblock Input and Output Connectors
Applications
• Programmable Split, Route, Mix and/or Level control
· Via front panel, wired remote or RS-485 room controllers
• Room Combining; Stand alone or with room controllers
• Remote Level Control for multi-zone applications
· One to six remotes can control many fluctuating zones
• Pro & Consumer Voltage Friendly
Data Sheet-1
SRM 66
SPLITTER ROUTER MIXER
Parameter Specification Limit Units Conditions/Comments
Inputs: Type Active Balanced
..........Connectors Euroblock
..........Impedance 20k 1%
..........Maximum Level +14 1 dBu -10 dBV gain
+26 1 dBu +4 dBu gain
..........Mix Range +6 to -25 and Off dB 1 dB steps
Outputs: Type Active Balanced
..........Connectors Euroblock
..........Impedance 200 1%
..........Maximum Level +8
+20 1 dBu 2k Ω load, +4 dBu gain
..........Master Level Range +0 to -59 and Off dB 1 dB steps
Control Group Attenuation +0 to -29 and Off dB 1 dB steps
Limiter: reshold Range 0 (Max) to -28 dB relative to max. sig. level, 1 dB steps
..........Attack Time 150 ms 10 dB step
..........Release Time 500 ms 10 dB step
High Pass Filter (switchable) 80 3% Hz 2nd order, 12 dB/octave, Butterworth
RFI Filters Yes
Mix Input Headroom Meter +4 & +16
Frequency Response 10-25 kHz typ. dB -10 dBV gain
10-40 kHz typ. dB +4 dBu gain
THD+Noise <0.1% .05
Signal-to-Noise Ratio 20 kHz noise BW, unity gain, one Channel, re: +4 dBu
90
80 2 dB +4 dBu gain input & output
Off Isolation >80 min. dB @ 1 kHz, re: +4 dBu
Unit: Agency Listing
..........120 VAC model Class 2 equipment National Electrical Code
U.L. 813 Exempt Class 2 equipment
CSA Exempt Class 2 equipment
..........230 VAC model CE (EMC) EMC directive 89/336/EEC
CE (safety) Exempt Exempt per article 1, LVD 73/23/EEC
Power Supply: Agency Listing
..........120 VAC model UL File no. E88261
CSA File no. LR58948
..........230 VAC model CE-EMC EMC directive 89/336/EEC
CE-Safety LV directive 73/23/EEC
Power Supply Requirement 18 VAC w/center tap 10% Vrms
Maximum Current 300 mA RMS Current from Remote Supply
Unit: Construction All Steel "19"" 1U Rackmount"
..........Size 1.75" H x 19" W x 8.5" D (1U) (4.4 cm x 48.3 cm x 21.6 cm)
..........Weight 5 lb (w/o power supply) (2.3 kg)
Shipping: Size 4.25" x 20.3" x 13.75" (11 cm x 52 cm x 35 cm)
..........Weight 9 lb (4.1 kg)
Note: 0 dBu=0.775 Vrms
1 dBu 2k Ω load, -10 dBV gain
2 dB Headroom remaining before clip
2 dB -10 dBV gain input & output
Ω
Ω
% +4 dBu, 20-20 kHz (80 kHz BW)
Data Sheet-2
VCA
DAC
VCA
DAC
VCA
DAC
VCA
DAC
VCA
DAC
VCA
DAC
DAC
SHIFT REG.
ADD. DEC.
µP
RAM
MEMORY
1 OF 6 CHANNELS SHOWN
CH 1
CH
2
CH
3
CH
4
CH
5
CH
6
RECALL
PORT
ADC
MRP
+4 -10
+4 -10
+4 -10
+4 -10
+4 -10
ROM
MIX AMP
+4 dBu -10dBV
CH. 2 - 6
LMT 2 -
6
80 Hz HP
IN
OU
T
4dB
16dB
1 2 3 4 5 6
MIX INPUT HEADROOM
LEVEL DETECTOR
+4 dBu -10dBV
PEAK RESPONDING
RIP (REMOTE
INTERFAC
E
PORT
) TWISTED
WIRE PAIR
.
UP TO
6
OPTIONAL
SR 1L REMOTES.
LMT 1
Out[x]:[y] IN1 IN2 IN3 IN4 IN5 IN6 MST LIM
Copy +6 -3 +6 Off +6 -25 +0 Max
Page left/right buttons
select 1 of 10 edit pages:
Output 1
Output 2
Output 3
Output 4
Output 5
Output 6
Assign Outputs to Group
Assign Group to Master Remote
Group Levels
System Memory
Output
Page
,
where [x]
indicates
the Output
currently
being
edited.
Limiter gain reduction is
indicated in [y]dB when
the Limiter is active
.
Out[x]:[y] IN1 IN2 IN3 IN4 IN5 IN6 MST LIM
Copy +6 -3 +6 Off +6 -25 +0 Max
Sets the Input Level of Inputs 1-6
mix
ed at the Output. Range is
+6 dB to -25 dB and Off
.
Copy parameters of current page to clipboard.
Paste contents of clipboard to current page.
Recall[n] loads current page parameters from
Memory[n], where [n]=Memory
1-24.
The DATA wheel changes
the parameter underlined
by the cursor.
Cursor left/right
buttons move the
cursor along the
bottom row to select
the parameter to
edit.
The EXE button stores and recalls settings on the System Memory
page. Press SHIFT with the MAX button to set a parameter to
maximum, or SHIFT with the MIN button to set a parameter to
minimum. EXE also executes Copy, Paste and Recall[n] functions.
Sets the Master
Level for Output[x].
Range is 0 dB to
-59 dB and Off.
Sets the Limiter
Threshold to the
maximum mix level
allowed at Output
[x]. Range is Max (0)
to -28 dB.
SRM 66 Block Diagram
SRM 66 Output Page
Data Sheet-3
SRM 66
-10dBV
+4dB
u
GAIN GAIN GAIN GAIN GAIN GAIN
PORT (RIP)
REMOTE INTERFACE
MADE IN U.S.A.
MEMORY RECALL
PORT (MRP
)
N108
RANE CORP.
-
+
+4dBu
-10dBV
-
+
-
+
-
+
7 8 A B +V -V
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
LOCK
COM 1 2 3 4 5 6
CLASS 2 EQUIPMENT
COMPLIES WITH PART 15 OF THE FCC RULES FOR A CLASS 'B' COMPUTING DEVICE
GAIN GAIN GAIN GAIN GAIN GAIN
COM 1 2 3 4 5 6 7 8
FP
-VA B +V
SRM 66
12
INPUTS
4 352 1 6
OUTPUTS
4 356
750mA
POWER
LEVEL
DSC 1
DIGITAL
SERIAL
CONVERTER
INPUT
RS 232 D
ATA
INTERFACE
REMOTE
PORT (RIP
)
RANE CORP.
MADE IN U.S.A
.
1 2 3
RCP 3
PANEL
ROOM COMBINING
1 2 3
4
RCP 3
PANEL
ROOM COMBINING
SPLITTER ROUTER MIXER
Rear Panel
Architectural Specifications
e unit shall have six (6) mono inputs and six (6) mono
outputs. e unit shall be capable of simultaneously splitting,
routing and/or mixing any input to any output. Each output
shall have six input mix level controls with a range of +6 dB to
-25 dB, in 1 dB steps, or off. A master output mix level control
shall have a range of +0 dB to -59 dB, in 1 dB steps, or off.
Input headroom meters shall be provided for each of the six
inputs by means of front panel LEDs.
Programming shall be accomplished via the front panel
backlit LCD display and five (5) momentary buttons with a data
Accessories
SR 1L Smart Digital Remote
e Rane SR 1L provides remote level control for one Output Group of an SRM 66. e
SR 1L’s 31 LEDs indicate the Output Group’s
current setting of 0 to 29 dB of attenuation (in
1 dB steps) and OFF. It fits in a standard U.S.
electrical box, and can be covered with a standard Decora™ plate cover. Up to seven SR 1Ls
can be connected to a single SRM 66. See the
SR 1L Data Sheet.
wheel. An adjustment for LCD viewing angle shall be provided.
Limiters shall be provided on each output. e limit threshold shall be adjustable in 1 dB steps from 0 dBr (Max) to -28 dB
re: clip.
An 80 Hz high-pass filter shall be provided on each output.
is filter shall be bypassable with an internal switch.
Provisions to link attenuation level and limiter gain reduction
of output combinations shall be provided in the form of Output
Groups.
MRS 4 Memory Recall Switch
e MRS 4 provides a simple solution to
recalling SRM 66 Memories from a remote loca
tion via the Memory Recall Port. It fits in a standard U.S. electrical box, and can be covered with
a standard Decora™ plate cover. If connected in
normal mode, up to 4 Memories can be recalled.
See the MRS 4 Data Sheet.
-
A Remote Interface Port shall be provided permitting the
use of up to seven (7) SR 1L Smart digital Remote controls for
the purpose of adjusting Output Groups from a remote location.
Each SR 1L remote shall install into a standard US electrical box
at least 2¼ inches deep.
A memory recall port shall be provided to recall any memory
via contact closure.
e inputs and outputs shall be line-level, active balanced
designs terminated with Euroblock connectors. RFI filters shall
be provided.
e unit shall be exempt from agency safety requirements
DSC 1 Digital Serial Converter
e DSC 1 provides a bridge to connect a
PC’s RS-232 port and the Remote Interface Port
of the SRM 66. Coupled with the included SRM
Exchange™ software, the DSC 1 allows an exchange
of settings between an SRM 66
and the PC. Once the settings
are obtained by the PC they can be manipulated,
stored in a file, printed for future reference or sent
to another SRM 66. See the DSC 1 Data Sheet.
and powered from a UL listed / cUL certified remote power supply (120 VAC), or meeting CE requirements (230 VAC).
e unit chassis shall be constructed entirely from cold-rolled
steel, and mount into a standard 1U EIA rack.
e unit shall be a Rane Corporation SRM 66 Splitter Router
Mixer.
RCP 3 Room Combining Panel
RCP 4 Room Combining Panel
e RCP 3 (three-room combining panel) and
RCP 4 (four-room combining panel) connect to the SRM 66’s
Memory Recall Port to create a “room combining system” using
preset Memories in updated SRM 66’s.
Additional Reading
1. RaneNote, “Using a Control System with
e RCP 3 and RCP 4 panels mount in a standard 19” rack
and utilize a single rack space. See the RCP Data Sheet.
an SRM 66”
2. RaneNote, “Using SR 1L’s with other
Rane Products”
3. RaneNote, “Advanced Applications of the
Ingenious SRM 66 and SR 1L”
RaneNotes are at www.rane.com.
Decora is a registered trademark of Leviton.All features & specifications subject to change without notice. DOC 105146
©Rane Corp orat ion 10802 47th Ave. W., Mukilteo WA 9827 5-509 8 TEL 425-3 55-6000 FAX 42 5-347 -7757 WEB www.rane.co m
Data Sheet-4
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