Schalltronik SCA-65 User manual

SCA-65
MODEL:
PUBLIC ADDRESS MIXER AMPLIFIER
AMPLIFIER
Warning:Before attempting to connect,operate or adjust this Amplier,
please read these instructions completely and carefully and save this Manual


Table of Contents
Introductions ----------------------------------------- 2
Features -----------------------------------------------3
Controls------------------------------------------------ 4
Setups --------------------------------------------------5
Operations-------------------------------------------- 9
Table of Contents
Block Diagram --------------------------------------11
Specifications --------------------------------------12
Wiring Guide ------------------------------------------5
Connections ------------------------------------------7
MOH---------------------------------------------------10

Welcome
Congratulation and thank you for the purchasing SCA-65, a multi-function commercial
amplier.These ampliers are designed to provide a big impact in sound reproduction
and to produce the best and highest quality audio at an affordable price. We wish you great
enjoyment and satisfaction when using your amplier, whether you are an installation, or
reinforcement engineer.
Although it is neither complicated to install nor difcult to operate your amplier, a few minutes
of your time is required to read this manual for a properly wired installation and becoming familiar
with its features and how to use them. Please take a great care may be needed when moving your
set and are required if it ever becomes necessary to return your set for service. Never place the
unit near radiator, in front of heating vents, to direct sun light, in excessive humid or dusty location
to avoid damages and to guaranty a long reliable use..
Unpacking and Installation
Connect your unit with the system components according to the description on the following pages.
Introductions
Introductions
SCA-65
Schalltronik.com
D-83367 Petting

* Three microphone and two line inputs with XLR,1/4” TRS jacks and RCA jacks.
* 65Watts rated power output.
The SCA-65 mixer ampliers are comprehensive, all-in-one mixer-amplier solutions
for commercial and industrial applications. These low-cost units provide all necessary
features in a simple building-block format.
* Acceptable wide range(up to 44dB) input level.
* Telephone paging input by Euro block terminal,with LEVEL &DUCKING DEPTH Controls.
* Two layer priority muting.
* Advanced protection system includes current limiting, over current and thermal protection.
* Desktop and 19-inches rack mountable type.
* Two bands tone controls.
* Low distortion and low noise level.
* Compact size and lightweight.
* Ideal commercial and industrial use.
Features
Features

FRONT PANEL
Controls
Controls
1.Input channel volumes.
[ Figure 1.1 Front panel diagram ]
2.Two bands tone controls ( 100Hz/10KHz ).
3.Master volume control.
4.Indicators ( Protection/Output level/Power ).
5.Power switch.
6.AUX INPUT
Rear Panel
[ Figure 1.2 Rear panel diagram ]
1.Power cable.
2.Speaker outputs connector ( COM,4-ohm, 8-ohm 70V,and 100V ).
3.MOH(Music On Hold) Terminal with LEVEL Control.
4.Gain controls for variable input level.
6.PHANTOM ON / OFF Switch
7.TALK OVER Switch.
8.TELE-PAGING Input with LEVEL,DUCKING DEPTH Control.
5.Signal input connectors.
SCA-65
Schalltronik.com
D-83367 Petting

Setups
Installation
CAUTION : Before you begin, make sure your mixer-amplier is disconnected from the power
source, with the power switch in the “OFF” position and all level controls turned completely
down (counterclockwise). You may stack mixer-ampliers without using a cabinet or you may
place a single mixer-amplier on a surface with 12-inches (about 30cm) of air space around
the unit for convection cooling.
We recommends using pre-built or professionally wired balanced line. 22 to 24 gauge cables.
Figure 2.1 shows connector pin assignments for wiring. The RCA input connections can also
be used for unbalanced inputs.
Setups
Wiring guide
Choose input wire and connectors
[ Figure 2.1 Input wire and connectors ]
BALANCED UNBALANCED
Unbalances 1/4” Connector Balances TRS 1/4” Connector
XLR Balanced Wiring Guide
For connection of balanced and unbalanced plugs,
ring and sleeve have to be bridged at the stereo plug
SOURCE TO DESTINATION
straln rellef clamp
sleeve
tip
sleeve
ground/shleld
tip
signal
straln rellef clamp
sleeve
tip
rlng
sleeve
ground/shleld
tip
hot
rlng
cold

Choose output wire and connectors
For the amplier output connectors, We recommends using pre-built or professionally wired,
high-quality, and heavy gauge speaker wires. You may use EURO blocks for your output con-
nectors. To prevent the possibility of short-circuits, wrap or otherwise insulate exposed loud-
speaker cable connectors.
Using the guidelines below, select the appropriate size wire based on the distance from ampli-
er to speaker. The wire sizes apply to the 4-ohm tap.
NOTE : Custom wiring should only be performed by qualied personnel. Class 2 wiring is re-
quired.
CAUTION : Never use shielded cable for output power wiring.
Setups

70V
75Ω / 70V 154Ω / 100V
100V
70V
100V
SCA-65
Connections
INPUT : Connect microphones or balanced line-level sources to mixer-amplier balanced inputs.
Set Gain volume accordingly. Connect unbalanced line-level signals to RCA input connectors.
Connections
Choose input wire and connectors
OUTPUT : Maintain proper polarity on output connectors.
For each output channel, connect the output EURO block terminals to the loudspeaker loads.
Use terminals marked COM and 4Ω / 8Ω for a loudspeaker load, or use terminals marked 70V,
100V, COM for constant-voltage speaker loads.
Oconnect the COM terminal to speaker negative(-) lead; connect one of the other terminals to
speaker positive(+) lead.
The impedance and output voltage are same as following Table 2.1
[ Table 2.1 Output voltage and impedance ]
NOTE : Impedances indicated in the table 2.1 represent the total speaker system impedances.
Speaker connection is shown in Figure 2.2
[ Figure 2.2 How to connect speakers ]

70V
100V
Connections
CAUTION : Never use both the Low-Z(4Ω / 8Ω)and Hi-Z(70V, 100V) terminals at the same time
[ Figure 2.3 Wrong connection ]

Mixer-amplier can accept variable and wide range input signal with trim pot.
Adjusts the trim pot in a range of 44dB to accept variable external equipments.
Figure 3.2 shows detail input sensitivities.
Mixer-amplier has two layer priority mute function. When higher level source is acti-
vated, other input signals are muted automatically except same priority level source.
Priority Control
Signal input gain control
Operations
Telephone paging
Connect mixer-amplier TELE-PAGING connector to telephone interface unit/PBX like
telephone pager.
You can announce by telephone after dial up to telephone interface unit/PBX.
Operations
[ Figure 3.1 Telephone paging connecon ]
[ Telephone pager/PBX ]
[ Figure 3.2 Acceptable input sensitivity per each channels ]
CH2,CH3,AUX >CH1 > Telephone Paging.

For 2-Channel Broadcast below Example can be Performed When the Unit is used in conjunc-tion
with the Optional SCA-65.
MOH
MOH

Block diagram
Block diagram

Necessary modications are carried out without notice
Specifications
Specifications
100V 154Ω
22.8V
16V
Performance
Input Sensitivity for full output at maximum gain
Balanced Microphone Channels
Unbalanced AUX Channels
Tele-Paging
Frequency Response
at 1watt from speaker out tap, 80Hz ~18kHz
Tone Controls
Signal to Noise Ratio at rated power output
Crosstalk at all control maximum
Rated Output Power at THD 0.5%
Total Harmonic Distortion(THD) at 1kHz rated power
Power Band Width at 1kHz from speaker out tap
DC Output Offset
Operating Temperature/Humidity at non-condensing
Output Voltage and Impedance
Construction
Cooling Convection Cooled
Dimensions (Width/Height/Depth)
Net Weight
SCA-65
100Hz,10kHz
70V
4Ω
8Ω
75Ω
270 mm X 76 mm X 230 mm
3.59 kg
80Hz~18kHz with less than 0.5% THD
Less than ±3mV
0°~40°C at 95% humidity
Less than 0.5%
65 Watts
-50dB ± 3dB
-30dB ± 3dB
-21dB ± 3dB
+1.5/-3dB
±12dB±3dB
Less than 90dB
-70dB at 1kHz
Table of contents
Other Schalltronik Amplifier manuals
Popular Amplifier manuals by other brands

Conrad
Conrad XA 1000 operating instructions

Carol-Ann Custom Amplifiers
Carol-Ann Custom Amplifiers OD-2 Series Operation manual

Marantz
Marantz Model 30 owner's manual

Russco
Russco fidelity-pro fpmu user manual

VXI
VXI Passport Console-P features and benefits

Gentner
Gentner PA870 Installation & operation manual