Sound Town STCA Series Public Address Amplifier
User Manual
Important Safety Instructions
- Read all safety and operating instructions before using this product.
- Keep all safety and operating instructions for future reference.
- Read and understand all warnings listed on the operating instructions.
- Follow all operating instructions to operate this product.
- Do not use this product near water, e.g., bathtub, sink, swimming pool, or wet basement.
- Only use a dry cloth to clean this product.
- Do not block any ventilation openings; do not place it flat against a wall or in a built-in enclosure that impedes cooling air flow.
- Do not install near heat sources like radiators, heat registers, stoves, or other heat-producing apparatus (including amplifiers).
- Do not defeat the safety purpose of polarized or grounding-type plugs. If the provided plug does not fit your outlet, consult an electrician for replacement of the obsolete outlet.
- Protect the power cord from being walked on or pinched, especially at plugs, convenience receptacles, and the point where they exit the apparatus. Do not break the ground pin of the power supply cord.
- Only use attachments specified by the manufacturer.
- Use only the cart, stand, tripod, bracket, or table specified by the manufacturer or sold with the apparatus. Use caution when moving a cart/apparatus combination to avoid injury from tip-over.
- Unplug this apparatus during lightning storms or when unused for long periods.
- Take care that objects do not fall and liquids are not spilled into the unit through ventilation ports or other openings.
- Refer all servicing to qualified service personnel. Servicing is required when the apparatus is damaged in any way, such as a damaged power-supply cord or plug, spilled liquid, objects fallen into the apparatus, exposure to rain or moisture, abnormal operation, or if it has been dropped.
- WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
- When the MAINS plug or an appliance coupler is used as the disconnect device, it should remain readily operable.
- Protective Ground Terminal: The apparatus shall be connected to an AC main socket with a protective earth ground connection.
CAUTION: RISK OF ELECTRIC SHOCK. DO NOT OPEN. Refer servicing to qualified service personnel. Do not remove chassis. No user-serviceable parts inside.
AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.
Features
- 3 MIC Inputs (support 12V phantom power and 1 Priority MIC)
- 1 Optical Input (SPDIF) and 3 Line inputs (1 x RCA & 2 x 1/4")
- 1 RCA Line output
- BLUETOOTH, SD, USB, FM input with LCD display
- Treble / Bass control & effect (ECHO, DELAY)
- Over current, short circuit protection
- 70V/100V output
- Low impedance 4~16 ohm output
- 6 zone outputs with individual volume control
In the Package
- 1 STCA amplifier
- 1 User Manual
- 1 Power cable
- 1 Warranty Card
- 1 Remote control
Front Panel
1. MP3 PLAYER: Bluetooth, USB, FM and recorder (with LCD display)
2. MIC SOCKET: One 1/4" jack for microphone input (priority mic.)
3. MIC LEVEL CONTROL: Adjusts the level of priority mic 1 input signals.
4. LINE/MIC LEVEL CONTROL: Adjusts the level of 2 line/mic input signals from the back panel.
5. LINE LEVEL CONTROL: Adjusts the level of LINE3 & MP3 input signals.
6. SPDIF VOLUME: Adjusts the level of the optical (SPDIF) input signal.
7. TREBLE: Adjusts the high frequency of the input signal.
8. BASS: Adjusts the low frequency of the input signal.
9. ECHO: Adjusts the volume of the echo effect.
10. DELAY: Adjusts the delay depth.
11. INDICATOR:
- POWER LED: Illuminates when the amplifier is turned on.
- PROT LED: Flashes when fault is detected (e.g., short-circuit or overheat); turn off the amplifier immediately.
- 3-segment LED: Indicates the master output level.
- CLIP LED: Lights up when the amplifier is nearing clipping. Occasional flickering is acceptable; if it's continuously lit, adjust the level control and reduce the output volume to prevent premature speaker failure.
12. 6 ZONE VOLUME: Individual volume control for 6 zones, each adjustable in 5 steps.
13. CHIME: Push button for a chime (alarm).
14. POWER SWITCH: Turns the amplifier on/off.
MP3 PLAYER WITH BLUETOOTH AND RECORDER
- A. MODE: Press to switch signal source (BLUETOOTH/USB/FM).
- B. PLAY/PAUSE: Play or pause the current track.
- C. PREV: Short press to jump to the previous song; press and hold to rewind.
- D. NEXT: Short press to jump to the next song; press and hold to fast forward.
- E. RECORD: Short press once to start recording, press again to end recording.
- F. MIC: Internal microphone for recording.
- G. IR: Infrared sensor for remote control.
- H. USB input socket.
Rear Panel
15. MIC/ LINE INPUTS: 2 x 1/4" jack & XLR combo sockets for mic/line signal inputs. Use 1/4" for line level and XLR for mic level.
16. PHANTOM: Supports 12V phantom powered microphone inputs. Push the 'PHANTOM' button when using phantom powered mics.
17. SPDIF INPUT: One SPDIF socket for optical input. The green LED lights up when a signal is detected.
18. LINE INPUT: One RCA socket for line level signal input.
19. LINE OUT: One RCA socket for signal output (mixed out).
20. COM OUTPUT SOCKET: Common post for 70V/100V/4~16ohm connections. Connect negative ends to this post.
21. LOW IMPEDANCE OUTPUT BINDING POST: For 4~16 ohm speakers. Connect positive ends to the '4~16 ohm' red post and negative ends to the 'COM' post.
22. 70V OUTPUT BINDING POST: For speakers with 70V transformers. Connect positive ends to the '70V' red post and negative ends to the 'COM' post.
23. 100V OUTPUT BINDING POST: For speakers with 100V transformers. Connect positive ends to the '100V' red post and negative ends to the 'COM' post.
24. 6 ZONE OUTPUT BINDING POST: For 70V voltage output divided into 6 zones.
25. Voltage selection: Switch to select between 110V (U.S.) and 230V (European) power. Ensure the correct voltage is selected for your region.
26. AC INPUT: Receptacle for the included IEC power cable. Ensure the correct AC line voltage is supplied. Do not connect to intermittent or faulty power.
Specifications
| MODEL | STCA180-6Z | STCA360-6Z | STCA600-6Z |
|---|---|---|---|
| OUTPUT POWER | 180W RMS | 360W RMS | 600W RMS |
| OUTPUT TYPE | 70V/100V/4~16Ω | 70V/100V/4~16Ω | 70V/100V/4~16Ω |
| MIC INPUT | 3mV, 600Ω | 3mV, 600Ω | 3mV, 600Ω |
| LINE INPUT | 200mV, 10KΩ | 200mV, 10KΩ | 200mV, 10KΩ |
| FREQ. RANGE | 50Hz~20kHz | 50Hz~20kHz | 50Hz~20kHz |
| DISTORTION | 0.5% (1kHz) | 0.5% (1kHz) | 0.5% (1kHz) |
| S/N | 88 dB | 88 dB | 88 dB |
| AUX RATIO MIC | 116 dB | 116 dB | 116 dB |
| VOLTAGE | AC110V~230V | AC110V~230V | AC110V~230V |
| DIMENSION | 19" x 15.3" x 3.5" (2U) | 19" x 15.3" x 3.5" (2U) | 19" x 15.3" x 3.5" (2U) |
| PACKING SIZE | 21" x 18.3" x 7.5" | 21" x 18.3" x 7.5" | 21" x 18.3" x 7.5" |
| N.W. | 22 Lbs | 26 Lbs | 33 Lbs |
| G.W. | 24 Lbs | 28 Lbs | 35 Lbs |
How can we help you?
CONTACT OUR US-BASED SUPPORT TEAM
For service, support, or more information, please contact the Sound Town support team:
Email: support@soundtown.com
