Table of contents Table of contents General notes............................... 4 Safety notes..............................7 Features............................... 13 Installation and operation........................14 4.1 Pin assignment..........................14 4.2 Screw terminal strips........................17 Connectors and controls........................20 Technical data............................27 Protecting the environment......................29 SA 125 CD...
General notes General notes This user manual contains important information on safe operation of the device. Read and follow all safety notes and all instructions. Save this manual for future reference. Make sure that it is available to all persons using this device. If you sell the device to other users, be sure that they also receive this manual.
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General notes Signal word Meaning DANGER! This combination of symbol and signal word indicates an immediate dangerous situation that will result in death or serious injury if it is not avoided. CAUTION! This combination of symbol and signal word indicates a possible dangerous situation that can result in minor injury if it is not avoided.
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General notes Warning signs Type of danger Warning – danger zone. mixer amplifier...
Safety notes Safety notes Intended use This device is intended to be used for amplification, mixing and playback of signals from musical instruments and microphones. Use the device only as described in this user manual. Any other use or use under other operating conditions is considered to be improper and may result in personal injury or property damage.
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Safety notes Safety DANGER! Danger for children Ensure that plastic bags, packaging, etc. are disposed of properly and are not within reach of babies and young children. Choking hazard! Ensure that children do not detach any small parts (e.g. knobs or the like) from the unit.
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Safety notes DANGER! Electric shock caused by high voltages at the power amplifier output The output voltages of modern high-performance amplifiers may result in death or serious injury. Never touch the bare ends of loudspeaker cables when the amplifier is on. DANGER! Electric shock caused by short-circuit Always use proper ready-made insulated mains cabling (power cord) with a pro‐...
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Safety notes CAUTION! Possible hearing damage With loudspeakers or headphones connected, the device can produce volume levels that may cause temporary or permanent hearing impairment. Do not operate the device permanently at a high volume level. Decrease the volume level immediately if you experience ringing in your ears or hearing impairment.
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Safety notes NOTICE! Operating conditions This device has been designed for indoor use only. To prevent damage, never expose the device to any liquid or moisture. Avoid direct sunlight, heavy dirt, and strong vibrations. NOTICE! Power supply Before connecting the device, ensure that the input voltage (AC outlet) matches the voltage rating of the device and that the AC outlet is protected by a residual current circuit breaker.
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Safety notes NOTICE! Possible damages by using an external battery Improper handling may cause an arc or short circuit between the bare ends of a live power cable to an external battery. This can destroy the battery and there is a fire hazard! If you use an external battery for power supply, connect the power cord to the screw terminal on the rear panel first.
Features Features Built-in CD player 4 microphone/line inputs 24 V phantom powering Priority function AUX input, LINE output Input for external pre-amplifier Output for external power amplifier Screw terminals for loudspeakers, telephone system and mains-independent voltage supply SA 125 CD...
Installation and operation Installation and operation Unpack and check carefully there is no transportation damage before using the unit. Keep the equipment packaging. To fully protect the device against vibration, dust and moisture during transportation or storage use the original packaging or your own packaging material suitable for transport or storage, respectively.
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Installation and operation XLR connectors for signal inputs Balanced female XLR panel connectors are used for the signal inputs. The figures and tables show the XLR pin assignment. Balanced pinout: Ground, shielding Positive signal (+) Negative signal (–) Unbalanced pinout: Ground, shielding Signal Jumpered with pin 1...
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Installation and operation Jack plugs for signal inputs The figures and tables show the pin assignments of the ¼ inch (6.35 mm) jack plugs. Unbalanced pinout of mono jack plug: Signal Ground, shielding Unbalanced pinout of stereo jack plug: Signal 2, 3 Ground, shielding mixer amplifier...
Installation and operation Balanced pinout of stereo jack plug: Positive signal (+) Negative signal (–) Ground, shielding 4.2 Screw terminal strips All loudspeaker units as well as the telephone system and the battery for mains-independent voltage supply are connected via two screw terminal strips on the rear side of the device. First detach the covers of the screw terminal strips using a suitable screwdriver.
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Installation and operation Left screw terminal strip for connecting a battery for mains-independent voltage supply and loudspeaker units: mixer amplifier...
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Installation and operation Right screw terminal strip for connecting loudspeaker units or monitors and a telephone system: Finally check all cable connections for tightness and reattach the terminal screw strip covers to the device. SA 125 CD...
Connectors and controls Connectors and controls Front panel mixer amplifier...
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Connectors and controls 1 CD drive. 2 “Stop” button for stopping playback. 3 “Back” button for jumping to the previous track. 4 “Forward” button for jumping to the next track. 5 “Volume +” button. 6 “Eject CD” button. 7 USB port for external audio equipment. 8 + 9 LCD display with track and time information.
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Connectors and controls 14 Power on/off button for CD drive. 15 INPUT 1 – 4 Volume controls for inputs 1 to 4. 16 AUX Volume control for the AUX input. 17 BASS Control for boosting/cutting the low frequencies. Starting from the neutral position, turn the control knob in clock‐ wise or counterclockwise direction to boost or cut the bass frequencies by up to ±...
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Connectors and controls 20 OUTPUT LED bar graph: The lowermost LED is permenently lit as long as the device is switched on. The upper LEDs indicate the strength of the output signal, depending on the position of the MASTER control. 21 Mains switch to turn the device on/off.
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Connectors and controls Rear panel mixer amplifier...
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Connectors and controls 22 Selector switch for the supply voltage of the device (115 V or 230 V, factory-set value). 23 Plug for mains cable with fuse holder. 24 INPUT 1 – 4 Signal inputs 1 to 4 (lockable combo XLR/jack sockets) with pertinent selector switches for input sensitivity (line / microphone) and phantom powering.
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Connectors and controls 29 AUX RCA input jack for connecting an external audio device. 30 LINE OUT RCA output jack for connecting an external recording device. 31 PRE OUT / AMP IN These two RCA jacks are by default connected directly to each other with a jumper. If desired, they can be used for looping in an external equalizer or compressor or for controlling another power amplifier.
Technical data Technical data Output power 120 W (RMS) Frequency range 80 Hz … 16 kHz (±3 dB) Input sensitivity AUX: –6 dBV (unbalanced) Phantom: –52 dBV / 24 V (balanced) Mic: –52 dBV (balanced) Line: –10 dBV (unbalanced) AMP IN: –0 dBV (unbalanced) TEL: –10 dBV (balanced) Total harmonic distortion (THD) £1 %...
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Technical data Signal-to-noise ratio (SNR) AUX: ³ 80 dB Phantom: ³ 65 dB Mic: ³ 65 dB Line: ³ 75 dB Output impedance COM, 4 Ω Output voltage 25 V, 70 V, 100 V Mains power supply 115/230 V (AC), 50/60 Hz 24 V (DC) Power consumption...
Protecting the environment Protecting the environment Disposal of the packaging mate‐ rial For the transport and protective packaging, environmentally friendly materials have been chosen that can be supplied to normal recycling. Ensure that plastic bags, packaging, etc. are properly disposed of. Do not just dispose of these materials with your normal household waste, but make sure that they are collected for recycling.
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