LOTRONIC BST FIRST Series User manual

FIRST
SERIES
U s e r ’ s G u i d e
FIRST-SP08
FIRST-SP10
FIRST-SP12
FIRST-SP15
FIRST-SP215
FIRST-SP12S
FIRST-SP15S
FIRST-SP18S
FIRST-SA10DSP2
FIRST-SA12DSP2
FIRST-SA15DSP2
FIRST-SA215DSP2
FIRST-SA12SDSP2
FIRST-SA15SDSP2
FIRST-SA18SDSP2

FIRST-Series
www.bst-dj.com
©
Copyright LOTRONIC 2018
Page 1
ENGLISH
Thank you for having chosen our speaker system. For your own safety, please read this user manual
carefully before installing the device.
SAFETY INTRODUCTION
• If the device has been exposed to temperature changes due to environmental changes, do not switch it on
immediately. The arising condensation could damage the device. Leave the device switched off until it has
reached room temperature.
• It is essential that the device is earthed. A qualified person must carry out the electric connection.
• Make sure that the available voltage is not higher than stated at the end of this manual.
• Make sure the power cord is never crimped or damaged. If it is damaged, ask your dealer or authorized agent
to replace the power cord.
• Always disconnect from the mains, when the device is not in use or before cleaning it. Only handle the power
cord by plug. Never pull out the plug by tugging the power cord.
• DISCONNECT DEVICE: Where the MAINS plug or an appliance coupler is used as the disconnect
device, the disconnect device shall remain readily operable.
CAUTION:
1. Please be aware that damages caused by manual modifications to the device are not subject to
warranty. Keep away from children and non-professionals.
2. The light doesn’t include any spare parts for repair, please check if all the parts are well installed and screws
are fitted tightly before operating. Do not use the light when the cover is open.
GENERAL GUIDELINES
• This device is only allowed to be operated with an alternating current of max. 220-240VAC/50Hz and was
designed for indoor use only.
• Operate the device only after having familiarized yourself with its functions. Do not permit operation by person
not qualified for operating the device. Most damages are the result of unprofessional operation.
• Please use the original packaging if the device is to be transported.
• For safety reasons, please be aware that all modifications on the device are forbidden. Furthermore, any other
operation may lead to short-circuit, burns, electric shock, crash, etc. If this device will be operated in any way
different to the one described in this manual, the product may suffer damages and the guarantee becomes
void.

FIRST-Series
www.bst-dj.com
©
Copyright LOTRONIC 2018
Page 2
SPECIFICATIONS - PASSIVE
ITEM NO FIRST-SP08 FIRST-SP10 FIRST-SP12 FIRST-SP15 FIRST-SP215
TYPE 8'' 2-way full range
speaker, passive 10'' 2-
way full range
speaker, passive 12'' 2-
way full range
speaker, passive 15'' 2-
way full range
speaker, passive Dual 15'' 2-way full
range speaker,
passive
Freq.Response
(-10dB) 65Hz-20KHz 55Hz-20KHz 50Hz-20KHz 45Hz-20KHz 45Hz-20KHz
Sensitity
(1W@1M) 96dB 97dB 98dB 99dB 101dB
Power Handling
(RMS) 150 watts 200 watts 250 watts 300 watts 600 watts
Nominal
Impedence 8 ohms 8 ohms 8 ohms 8 ohms 4 ohms
Driver
LF 8'' woofer, 2'' VC,
30 OZ
LF 10'' woofer, 2''
VC, 30 OZ
LF 12'' woofer, 2.5''
VC, 50 OZ
LF 15'' woofer, 3''
VC, 60 OZ
LF 15'' woofer, 3''
VC, 60 OZ
HF 1'' compression
driver HF 1.35''
compression driver HF 1.35'' compression driver HF 1.75'' compression driver HF 1.75'' compression driver
Grille Steel grille with
acoustic fabric Steel grille with acoustic fabric Steel grille with acoustic fabric Steel grille with acoustic fabric Steel grille with acoustic fabric
Enclosure
15mm Plywood
15mm Plywood
15mm Plywood
15mm Plywood
15mm Plywood
Appearance Finish
Texture Painting Texture Painting Texture Painting Texture Painting Texture Painting
Dimensions
(W x H x D) 300x330x490mm 350x380x585mm 410x430x670mm 475x500x750mm 485x530x1180mm
Net Weight
9.70kg
13.60kg
18.50kg
23.50kg
37.20kg
ITEM NO FIRST-SP12S FIRST-SP15S FIRST-SP18S
TYPE 12'' Bass reflex subwoofer,
passive 15'' Bass reflex subwoofer, passive 18'' Bass reflex subwoofer, passive
Freq.Response (-10dB) 40Hz-160Hz 35Hz-160Hz 30Hz-160Hz
Sensitity (1W@1M)
100dB
102dB
102dB
Power Handling (RMS)
400 watts
500 watts
600 watts
Nominal Impedence
8 ohms
8 ohms
8 ohms
Driver LF 12'' subwoofer, 3'' VC, 80
OZ LF 15'' subwoofer, 4'' VC, 125 OZ LF 18'' subwoofer, 4'' VC, 125 OZ
Grille Steel grille with acoustic fabric Steel grille with acoustic fabric Steel grille with acoustic fabric
Enclosure
15mm Plywood
15mm Plywood
18mm Plywood
Appearance Finish
Texture Painting
Texture Painting
Texture Painting
Dimensions (W x H x D)
420x510x520mm
490x600x610mm
580x700x715mm
Net Weight
21.50kg
31.50kg
44.50kg

FIRST-Series
www.bst-dj.com
©
Copyright LOTRONIC 2018
Page 3
SPECIFICATIONS - ACTIVE FULL RANGE
ITEM NO FIRST-SA10DSP2 FIRST-SA12DSP2 FIRST-SA15DSP2 FIRST-SA215DSP2
TYPE 10'' 2-way full range
speaker, active 12'' 2-way full range speaker, active 15'' 2-way full range speaker, active Dual 15'' 2-way full range speaker, active
Freq.Response
(-10dB) 55Hz-20KHz 50Hz-20KHz 45Hz-20KHz 45Hz-20KHz
Sensitivity (1W@1M)
97dB
98dB
99dB
101dB
Power Handling (RMS)
200 watts
250 watts
300 watts
600 watts
Nominal Impedance
4 ohms
4 ohms
4 ohms
4 ohms
Driver LF 10'' woofer, 2'' VC,
30
OZ LF 12'' woofer, 2.5'' VC,
50 OZ LF 15'' woofer, 3'' VC,
60
OZ LF 15'' woofer, 3'' VC,
60
OZ
HF 1.35'' compression
driver HF 1.35'' compression driver HF 1.75'' compression driver HF 1.75'' compression driver
Grille
Steel grille with acoustic
fabric Steel grille with acoustic
fabric
Steel grille with acoustic
fabric
Steel grille with acoustic
fabric
Enclosure
15mm Plywood
15mm Plywood
15mm Plywood
15mm Plywood
Appearance Finish
Texture Painting
Texture Painting
Texture Painting
Texture Painting
Dimensions
(W x H x D) 350x380x585mm 410x430x670mm 475x500x750mm 485x530x1180mm
Net Weight
14
.
50kg
20
.
00kg
25
.
00kg
39
.
00kg
TYPE
Two-way BI-Amp
Two-way BI-Amp
Two-way BI-Amp
Amp type Class D LF Class-D, HF Class AB LF Class-D, HF Class
AB
Output power LF175W+HF75W LF300W+HF60W LF500W+HF80W
DSP 24Bit, 96kHz sampling
frequency 24Bit, 96kHz sampling frequency 24Bit, 96kHz sampling frequency
DSP display screen
/
Yes
Yes
Modes PA, Monitor, Sub,
Speech Live, Music, Speech, DJ Live, Music, Speech, DJ
Bluetooth module
Yes
Yes
Yes
Connectors
Combo Line/Mic in, RCA
in, Bluetooth in, XLR Mix
out
2xCombo Line/Mic in, Bluetooth in, XLR Mix out 2xCombo Line/Mic in, Bluetooth in, XLR Mix
out
Controls Two input volume
controls, master volume
control
Two input volume controls, master volume
control/DSP function selector
Two input volume
controls, master volume
control/DSP function
selector
Front LED Switch
On/off front LED switch
On/off front LED switch
On/off front LED switch
Indicators
BT Status, Limit, Signal,
Power, DSP 4 Modes Limit, Signal, Power Limit, Signal, Power
Protection
Over temp, over load,
DC protect, over
voltage, low voltage,
soft
start
Over temp, over load, DC protect, over voltage,
low voltage, soft start
Over temp, over load,
DC protect, over
voltage, low voltage,
soft
start
Cooling Convection Convection Convection
Power Supply
220-240VAC 50Hz
220-240VAC 50Hz
220-240VAC 50Hz

FIRST-Series
www.bst-dj.com
©
Copyright LOTRONIC 2018
Page 4
SPECIFICATIONS - ACTIVE SUBWOOFER
ITEM NO FIRST-SA12SDSP2 FIRST-SA15SDSP2 FIRST-SA18SDSP2
TYPE 12'' Bass reflex subwoofer,
active 15'' Bass reflex subwoofer, active 18'' Bass reflex subwoofer, active
Freq. Response (-10dB) 40Hz-160Hz 35Hz-160Hz 30Hz-160Hz
Sensitivity (1W@1M) 100dB 102dB 102dB
Power Handling (RMS)
400 watts
500 watts
600 watts
Nominal Impedance
4 ohms
4 ohms
4 ohms
Driver LF 12'' subwoofer, 3'' VC, 80
OZ LF 15'' subwoofer, 4'' VC, 125 OZ LF 18'' subwoofer, 4'' VC, 125 OZ
Grille Steel grille with acoustic fabric
Steel grille with acoustic fabric Steel grille with acoustic fabric
Enclosure 15mm Plywood 15mm Plywood 18mm Plywood
Appearance Finish
Texture Painting
Texture Painting
Texture Painting
Dimensions (W x H x D)
420x510x520mm
490x600x610mm
580x700x715mm
Net Weight
23.50kg
33.50kg
46.50kg
TYPE Active Sub Amp Active Sub Amp Active Sub Amp
Amp type Class D Class D Class D
Output power 400W 500W 600W
DSP 24Bit, 96kHz sampling
frequency 24Bit, 96kHz sampling frequency 24Bit, 96kHz sampling frequency
DSP display screen Yes Yes Yes
Modes Live, Music, DJ1, DJ2 Live, Music, DJ1, DJ2 Live, Music, DJ1, Dj2
Bluetooth module
Yes
Yes
Yes
Connectors 2x Combo Line/Mic in,
XLR Mix out
2x Combo Line/Mic in,
XLR Mix out
2x Combo Line/Mic in,
XLR Mix out
Controls Master volume control/DSP
functions selector Master volume control/DSP functions selector Master volume control/DSP functions selector
Front LED Switch
On/off front LED switch
On/off front LED switch
On/off front LED switch
Indicators
Limit, Signal, Power
Limit, Signal, Power
Limit, Signal, Power
Protection Over temp, over load, DC
protect, over voltage, low
voltage, soft start
Over temp, over load, DC
protect, over voltage, low
voltage, soft start
Over temp, over load, DC
protect, over voltage, low
voltage, soft start
Cooling
Convection
Convection
Convection
Power Supply
220-240VAC 50Hz
220-240VAC 50Hz
220-240VAC 50Hz

FIRST-Series
www.bst-dj.com
©
Copyright LOTRONIC 2018
Page 5
AMPLIFIER INPUT CONFIGURATION
Full-Range Models
14 4
5 7
13 6
15
1 2 16
3
11 12
4
5 7
1 6
3
11 12
4
5 7
1 6
3
9
8 10
FIRST-SA10DSP2 9
10 8
9
10 8
FIRST-SA12DSP2
FIRST-SA15DSP2 FIRST-SA215DSP2
Subwoofer Models
1. LINE / MIC IN
Balanced input for the connection of signal sources like mixing
12 consoles, instruments or microphones. Connections can be
established using 1/4 inch TRS or XLRconnectors.
4 Volume control for adjusting the individual inputs’ level. The 12 o'clock
5 position is unity gain (no gain or attenuation), the range to the left of
1 3 6 zero (0) is for adjusting line level sources, and the range to the right of
Zero (0) is for adjusting microphone levels. LINE and mic input level
7 controls are available for both INPUT 1 and INPUT 2.
2. AUX/BT Input
A CD, IPhone or Bluetooth signal for AUX/BT in or Input 2 channel
input.
3. MIX OUT
XLR output sends the mix of both input signals to another loudspeaker or
subwoofer. INPUT LEVEL controls the signal level to OUTPUT. The
MASTER VOL or DSP control setting does not affect OUTPUT.
4. LIMIT(Automatic amplitude limiter):
Automatic amplitude “LIMIT” LED; when the audio signal reaches the
dangerous threshold for the transducers, this circuit will automatically
intervene by reducing the amount of signal in order to protect the
9 speaker, avoid losing roue and despicking distortion as well; the
10 8
FIRST-SA12SDSP2
FIRST-SA15SDSP2
FIRST-SA18SDSP2
activation of these protections is recognized via the “CUP” Leds
Lighting up.
5. SIGNAL
LED signal to indicate the input signal to “IN XLR SOCKET”. Adjusts
the volume of the main mix.
11

FIRST-Series
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©
Copyright LOTRONIC 2018
Page 6
AMPLIFIER INPUT CONFIGURATION
6. POWER
LED signal to indicate the switching on of the system.
7. FRONT LED
Turn on/off front logo LED.
8. POWER SWITCH
This power switch turns on the system. Remember to adjust the volume level to the lowest setting before turn on the power
switch.
9. AC INPUT CONNECTOR
Connect the included power cord to the AC input connector before push on the power switch.
10. Fuse
Only replace the fuse when the device is disconnected from mains. Only use fuses of the same rating and power. The correct
fuse value is specified on the rear panel.
11. LCD
DSP control and monitoring interface.
12. MASTER VOLUME
Adjusts the sound level.
DSP: Scroll through the menu and select the available choices. Push the MASTER VOL knob to enter the DSP menu.
13. SPEAKER MODE:
PA: This is the default setting for the loudspeakers. Use this setting when your loudspeaker is being used either on a speaker
stand and facing towards your audience.
DJ: Use this setting when your loudspeaker is being used for DJ only or play DJ music application and is facing towards
the audience.
Monitor: Use this setting when your loudspeaker is being used as a stage monitor facing towards you.
Speech: Use this setting when your loudspeaker is being used for Speech only or Spoken Word only applications and is facing
towards the audience.
14. BLUETOOTH:
To pair the speaker with your Bluetooth device:
A: With the loudspeaker powered on, press the pair button for two seconds, the Bluetooth on. The paired LED will flash.
B: On your Bluetooth device's settings page, enable Bluetooth and select BST-FIRST as the device. When paired
successfully, the paired LED is light steadily.
C: Turn your Bluetooth device's volume to its lowest setting.
D: On your Bluetooth device, play music. Then we recommend setting the Bluetooth device's volume at its maximum.
E: Once your device's is paired with the speaker, the speaker will remember the device. To reconnect it, go to your device's
Bluetooth settings page and select “Connect" to re-establish the connection.
F: When the device's connected Bluetooth is playing, press the Pair button for fast play and pause operation, when you
press the pair button for 2 seconds, the device is disconnected, and the Bluetooth power off.
15. BLUETOOTH VOLUME
Turn this knob to adjust the input volume of you paired Bluetooth device.
16. MIX OUT SELECTOR
When disengaged (Ch1), the MIX OUT level will be unaffected by the INPUT VOLUME controls.
When engaged (MIX), the MIX OUT level can be adjusted by the INPUT VOLUME controls.

FIRST-Series
www.bst-dj.com
©
Copyright LOTRONIC 2018
Page 7
DSP CONTROL
An integrated DSP controls menu allows the user to select multiple DSP system settings on the loudspeaker.
To access the DSP control menus, do the following;
1. Push the Master Vol Knob, the DSP Control menu appears.
2. Using the Master Vol Knob, scroll through the menu items.
3. Push the Master Vol Knob to select the menu item you want to modify. The focus moves to the parameters on the
right side of the DSPmenu.
4. Using the Master Vol knob, scroll through the parameters.
5. Push the Master Vol Knob to confirm the selected parameter.
The setting is saved. The focus returns to the menu items on the left side of the DSP menu.
6. Repeat steps 2 through 5 to modify additional DSP and system settings.
7. Select EXIT to return to the home screen.

FIRST-Series
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©
Copyright LOTRONIC 2018
Page 8
DSP CONTROL OF FULL RANGE
The full-range loudspeaker DSP control menu selections are available for the 12" and 15'' loudspeakers.
Mode LIVE (default)
MUSIC
SPEECH
DJ
LOACTION
TRIPOD (default)
MONITOR
WALL
SUPEND
SUB
OFF(default)
80Hz
100Hz
120Hz
150Hz
TREBLE 0dB (default)
-12dB–+12dB
MID
0dB (default)
-12dB–+12dB
BASS
0dB (default)
-12dB–+12dB
DELAY 0-116m
BTH VOL OFF (default)
Bluetooth Connected
LCD DIM
ON (default)
OFF
BRIGHT
5 (default)
1-10 adjust
RESET NO (default)
ARE YOU SURE?
YES OR NO
INFO
Brand Product Name
Firmware Version
EXIT
* Notice !
The display returns to the home screen after twenty second of inactivity.
Mode Menu
The Mode menu is used to configure the type of sound the loudspeaker delivers.
Available options for this selection are: LIVE, MUSIC, SPEECH and DJ.
• LIVE - is used for live sound applications (Default).
• MUSIC - is used for recorded musicplayback.
• SPEECH - is used for spoken wordapplications.
• DJ - is used for recorded electronic music playback.
LOCATION Menu
• The Location menu is used to optimize the loudspeaker for different boundaries
• Available options for this selection are: TRIPOD, MONITOR, WALL, and SUSPEND.
• TRIPOD - is used when the loudspeaker is placed on a tripod stand or placed on a pole.(Default)
• MONITOR - is used when the loudspeaker is placed on the angled monitor panel in monitor position. This setting
compensates for the amount of low frequency boost created by placing the speaker close to the floor.

FIRST-Series
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Copyright LOTRONIC 2018
Page 9
DSP CONTROL OF FULL RANGE
• WALL - is used when the loudspeaker is mounted to the wall using the mounting bracket. This setting compensates
for the amount of low frequency boost created by placing the loudspeaker close to the wall. If used on a column, it is
recommended to use the SUSPENDmode.
• SUSPEND - is used when the loudspeaker is suspended in a 3-point suspension by eye bolts.
SUB Menu
The Sub menu is used to select a high pass frequency for use with a subwoofer or a matched subwoofer. Available options for
this selection are: OFF, 80Hz, 100Hz, 120Hz, 150Hz, 15"/18". The high passes are 24dB / octave Linkwitz/Riley crossovers.
The 80 Hz, 100 Hz, 120 Hz, and 150 Hz choices are generic high pass settings for use with other subwoofers. The 15 Sub/18
Sub settings are specifically optimized for subwoofers by including delay for best summation. The default is OFF.
TREBLE Menu
The Treble menu is used to adjust the high frequency performance of the loudspeaker for different applications or personal
preference. The parameter controls a high shelving filter that is centered on 6 kHz. The range is-12 dB to+ 6 dB. The default is
zero (0).
MID Menu
The Mid menu is used to adjust the midrange frequency performance of the loudspeaker for different applications or
personal preference. The parameter controls a parametric EQ that is centered on 1.2 kHz. The range is -12dB to
+6dB. The default is zero (0).
BASS Menu
The Bass menu is used to adjust the low frequency performance of the loudspeaker for different applications or personal
preference. The parameter controls a parametric EQ filter that is centered on 80 Hz. The default is zero (0).
DELAY Menu
The DELAY menu is used to adjust the delay time, The range is 0-30ms.
BTH VOL Menu
The Bluetooth menu on the DSP is used to match and connect to the Bluetooth on the mobile devices. Enter the menu and
adjust the Volume to the range of 0-16. At the same time start a Bluetooth search. The Bluetooth symbol is flashing on the
LCD. Then open the Bluetooth on the mobile device to match with the Bluetooth in the loudspeaker. The Bluetooth symbol
stops flashing when the Bluetooth has been paired successfully. At this time you can play music on the speaker via mobile
devices, and the range of 0-16 is to control the loudspeaker Bluetooth volume. The loudspeaker Bluetooth is closed when the
volume is adjusted to 0.
LCD DIM Menu
The LCD Dim menu is used to dim the display when the display is idle for twenty seconds. Available options for this
selection are: ON or OFF. The default is ON.
BRIGHT Menu
The Bright menu is used to determine the brightness of the LCD. The range is 1 to 10. The default is 5.
CONTRAST Menu
The Contrast menu is used to determine the contrast on the LCD. The range is 1 to 10. The default is 5.
RESET Menu
The Reset menu is used to reset the loudspeaker to original factory settings. Available options for this selection are: NO or
YES. The default selection is NO. To reset the system to original factory settings, do the following:
1. From the DSP menu, select RESET. The
reset Confirm Reset message appears
2. Select YES.
The loudspeaker restarts and resets the system to the original factor settings.
INFO Menu
The Information menu is used to display the Brand, product name and firmware version.