BST FI R ST- SP0 8 FI R ST- SP1 0 FI R ST- SP1 2 FI R ST- SP1 5 FI R ST- SP2 1 5 FI R ST- SP1 2S FI R ST- SP1 5S FI R ST- SP1 8S FI R ST- SA1 0 D SP2 FI R ST- SA1 2 D SP2 FI R ST- SA1 5 D SP2 FI R ST- SA2 1 5 D SP2 FI R ST- SA1 2S D SP2 FI R ST- SA1 5S D SP2 FI R ST- SA1 8S D SP2 User Manual

FIRST
U s e r ’ s G u i d e
SERIES
F I R S T- S P 2 1 5 F I R S T- S P 1 2 S F I R S T- S P 1 5 S F I R S T- S P 1 8 S
F I R S T- S A 1 0 D S P 2 F I R S T- S A 1 2 D S P 2 F I R S T- S A 1 5 D S P 2
F I R S T- S A 2 1 5 D S P 2 F I R S T- S A 1 2 S D S P 2 F I R S T- S A 1 5 S D S P 2 F I R S T- S A 1 8 S D S P 2
Copyright LOTRONIC 2018
F I R S T- S e r i e s

E N G L I S H

www.bst-dj.com
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.
©
Page 1
Copyright LOTRONIC 2018
way full range
way full range
way full range
LF 8'' woofer, 2'' VC,
LF 10'' woofer, 2''
LF 12'' woofer, 2.5''
LF 15'' woofer, 3''
LF 15'' woofer, 3'' 15mm Plywood
15mm Plywood
15mm Plywood
15mm Plywood
15mm Plywood
9.70kg
13.60kg
18.50kg
23.50kg
37.20kg
100dB
102dB
102dB
400 watts
500 watts
600 watts
8 ohms
8 ohms
8 ohms
15mm Plywood
15mm Plywood
18mm Plywood
Texture Painting
Texture Painting
Texture Painting
420x510x520mm
490x600x610mm
580x700x715mm
Net Weight
21.50kg
31.50kg
44.50kg
F I R S T- S e r i e s
www.bst-dj.com
S P E C I F I C AT I O N S - PA S S I V E
ITEM NO FIRST-SP08 FIRST-SP10 FIRST-SP12 FIRST-SP15 FIRST-SP215
TYPE
Freq.Response (-10dB)
Sensitity (1W@1M)
Power Handling (RMS)
Nominal Impedence
Driver
Grille Enclosure
Appearance Finish Dimensions
(W x H x D) Net Weight
8'' 2-way full range speaker, passive
65Hz-20KHz 55Hz-20KHz 50Hz-20KHz 45Hz-20KHz 45Hz-20KHz
96dB 97dB 98dB 99dB 101dB
150 watts 200 watts 250 watts 300 watts 600 watts
8 ohms 8 ohms 8 ohms 8 ohms 4 ohms
30 OZ HF 1'' compression
driver Steel grille with
acoustic fabric
Texture Painting Texture Painting Texture Painting Texture Painting Texture Painting 300x330x490mm 350x380x585mm 410x430x670mm 475x500x750mm 485x530x1180mm
10'' 2­speaker, passive
VC, 30 OZ HF 1.35''
compression driver Steel grille with
acoustic fabric
12'' 2­speaker, passive
VC, 50 OZ HF 1.35''
compression driver Steel grille with
acoustic fabric
15'' 2­speaker, passive
VC, 60 OZ HF 1.75''
compression driver Steel grille with
acoustic fabric
ITEM NO FIRST-SP12S FIRST-SP15S FIRST-SP18S
Dual 15'' 2-way full range speaker, passive
VC, 60 OZ HF 1.75''
compression driver Steel grille with
acoustic fabric
TYPE Freq.Response (-10dB)
Sensitity (1W@1M) Power Handling (RMS) Nominal Impedence
Driver Grille
Enclosure Appearance Finish Dimensions (W x H x D)
12'' Bass reflex subwoofer, passive
40Hz-160Hz 35Hz-160Hz 30Hz-160Hz
LF 12'' subwoofer, 3'' VC, 80 OZ
Steel grille with acoustic fabric Steel grille with acoustic fabric Steel grille with acoustic fabric
15'' Bass reflex subwoofer,
passive
LF 15'' subwoofer, 4'' VC, 125 OZ
18'' Bass reflex subwoofer,
passive
LF 18'' subwoofer, 4'' VC, 125 OZ
©
Page 2
Copyright LOTRONIC 2018
97dB
98dB
99dB
101dB
200 watts
250 watts
300 watts
600 watts
4 ohms
4 ohms
4 ohms
4 ohms
30
60
60
Steel grille with acoustic
Steel grille with acoustic
Steel grille with acoustic 15mm Plywood
15mm Plywood
15mm Plywood
15mm Plywood
Texture Painting
Texture Painting
Texture Painting
Texture Painting
14.50kg
20.00kg
25.00kg
39.00kg
Two-way BI-Amp
Two-way BI-Amp
Two-way BI-Amp
/
Yes
Yes
Yes
Yes
Yes
Combo Line/Mic in, RCA in, Bluetooth in, XLR Mix
controls, master volume
controls, master volume
On/off front LED switch
On/off front LED switch
On/off front LED switch
BT Status, Limit, Signal,
soft
soft
220-240VAC 50Hz
220-240VAC 50Hz
220-240VAC 50Hz
F I R S T- S e r i e s
www.bst-dj.com
S P E C I F I C AT I O N S - A C T I V E F U L L R A N G E
ITEM NO FIRST-SA10DSP2 FIRST-SA12DSP2 FIRST-SA15DSP2 FIRST-SA215DSP2
TYPE Freq.Response
(-10dB) Sensitivity (1W@1M) Power Handling (RMS) Nominal Impedance
Driver
Grille Enclosure
Appearance Finish Dimensions
(W x H x D) Net Weight
TYPE Amp type Output power DSP DSP display screen Modes Bluetooth module
10'' 2-way full range speaker, active
55Hz-20KHz 50Hz-20KHz 45Hz-20KHz 45Hz-20KHz
LF 10'' woofer, 2'' VC, OZ
HF 1.35'' compression driver
fabric
350x380x585mm 410x430x670mm 475x500x750mm 485x530x1180mm
Class D LF Class -D, HF Class AB LF175W+HF75W LF300W+HF60W LF500W+HF80W
24Bit, 96kHz sampling frequency
PA, Monitor, Sub, Speech
12'' 2-way full range speaker, active
LF 12'' woofer, 2.5'' VC, 50 OZ
HF 1.35'' compression driver
Steel grille with acoustic fabric
24Bit, 96kHz sampling frequency
Live, Music, Speech, DJ
15'' 2-way full range speaker, active
LF 15'' woofer, 3'' VC, OZ
HF 1.75'' compression driver
fabric
Dual 15'' 2-way full range speaker, active
LF 15'' woofer, 3'' VC, OZ
HF 1.75'' compression driver
fabric
LF Class -D, HF Class AB
24Bit, 96kHz sampling frequency
Live, Music, Speech, DJ
Connectors
Controls
Front LED Switch Indicators
Protection
Cooling Power Supply
©
2xCombo Line/Mic in,
out
Two input volume control
Power, DSP 4 Modes Over temp, over load,
DC protect, over voltage, low voltage, start
Convection Convection Convection
2xCombo Line/Mic in, Bluetooth in, XLR Mix out
Two input volume controls, master volume
control/DSP function selector
Limit, Signal, Power Limit, Signal, Power
Over temp, over load, DC protect, over voltage,
low voltage, soft start
Bluetooth in, XLR Mix out
Two input volume control/DSP function
selector
Over temp, over load, DC protect, over voltage, low voltage, start
Page 3
Copyright LOTRONIC 2018
400 watts
500 watts
600 watts
4 ohms
4 ohms
4 ohms
Texture Painting
Texture Painting
Texture Painting
420x510x520mm
490x600x610mm
580x700x715mm
23.50kg
33.50kg
46.50kg
Yes
Yes
Yes
XLR Mix out
XLR Mix out
XLR Mix out
On/off front LED switch
On/off front LED switch
On/off front LED switch
Limit, Signal, Power
Limit, Signal, Power
Limit, Signal, Power
Convection
Convection
Convection
220-240VAC 50Hz
220-240VAC 50Hz
220-240VAC 50Hz
F I R S T- S e r i e s
www.bst-dj.com
S P E C I F I C AT I O N S - A C T I V E S U B W O O F E R
ITEM NO FIRST-SA12SDSP2 FIRST-SA15SDSP2 FIRST-SA18SDSP2
TYPE Freq. Response (-10dB)
Sensitivity (1W@1M) Power Handling (RMS) Nominal Impedance
Driver Grille
Enclosure Appearance Finish Dimensions (W x H x D) Net Weight
TYPE Amp type Output power
DSP DSP display screen
Modes Bluetooth module
Connectors
12'' Bass reflex subwoofer,
active 40Hz-160Hz 35Hz-160Hz 30Hz-160Hz 100dB 102dB 102dB
LF 12'' subwoofer, 3'' VC, 80 OZ
Steel grille with acoustic fabric Steel grille with acoustic fabric Steel grille with acoustic fabric 15mm Plywood 15mm Plywood 18mm Plywood
Active Sub Amp Active Sub Amp Active Sub Amp Class D Class D Class D 400W 500W 600W 24Bit, 96kHz sampling
frequency Yes Yes Yes Live, Music, DJ1, DJ2 Live, Music, DJ1, DJ2 Live, Music, DJ1, Dj2
2x Combo Line/Mic in,
15'' Bass reflex subwoofer, active
LF 15'' subwoofer, 4'' VC, 125 OZ
24Bit, 96kHz sampling frequency
2x Combo Line/Mic in,
18'' Bass reflex subwoofer,
active
LF 18'' subwoofer, 4'' VC, 125 OZ
24Bit, 96kHz sampling frequency
2x Combo Line/Mic in,
Controls Front LED Switch
Indicators
Protection
Cooling Power Supply
Master volume control/DSP functions selector
Over temp, over load, DC protect, over voltage, low voltage, soft start
Master volume control/DSP functions selector
Over temp, over load, DC protect, over voltage, low voltage, soft start
Master volume control/DSP functions selector
Over temp, over load, DC protect, over voltage, low voltage, soft start
©
Page 4
Copyright LOTRONIC 2018
11
F I R S T- S e r i e s
www.bst-dj.com
A M P L I F I E R I N P U T C O N F I G U R AT I O N
Full-Range Models
14
1 2
4 5 7
13 6
8
15
16
3
9
10
11 12
1
4 5 6
3
7
11
4 5 6
1
12
7
3
FIRST-SA10DSP2
9
10 8
9
10 8
FIRST-SA12DSP2
FIRST-SA215DSP2
FIRST-SA15DSP2
Subwoofer Models
1.

LINE / MIC IN

12
4 5
1 3
6
7
9
10 8
FIRST-SA12SDSP2 FIRST-SA15SDSP2 FIRST-SA18SDSP2
Balanced input for the connection of signal sources like mixing consoles, in str umen ts or microphones. Connections can be established using 1/4 inch TRS or XLR connectors. Volume control for adjusting the individual inputs’ level. The 12 o'clock
position is unity gain (no gain or attenuation), the range to the left of 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 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
speaker, avoid losing roue and despicking distortion as well; the 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.
©
Page 5
Copyright LOTRONIC 2018
F I R S T- S e r i e s
www.bst-dj.com

A M P L I F I E R I N P U T C O N F I G U R AT I O N

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 Blueto ot h dev ice:
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 connect ion. 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 OU T 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.
©
Page 6
Copyright LOTRONIC 2018
F I R S T- S e r i e s
www.bst-dj.com

D S P C O N T R O L

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 DSP menu.
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.
©
Page 7
Copyright LOTRONIC 2018
MUSIC
SPEECH
DJ
LOACTION
TRIPOD (default)
MONITOR
SUB
OFF(default)
80Hz
100Hz
120Hz
MID
0dB (default)
-12dB–+12dB
BASS
0dB (default)
-12dB–+12dB
LCD DIM
ON (default)
OFF
BRIGHT
5 (default)
1-10 adjust
INFO
Brand Product Name
Firmware Version
EXIT
F I R S T- S e r i e s
www.bst-dj.com

D S P C O N T R O L O F F U L L R A N G E

The full-range loudspeaker DSP control menu selections are available for the 12" and 15'' loudspeakers.
Mode LIVE (default)
WALL SUPEND
150Hz
TREBLE 0dB (default)
-12dB–+12dB
DELAY 0-116m BTH VOL OFF (default)
Bluetooth Connected
RESET NO (default)
ARE YOU SURE? YES OR NO

* 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 music playback.
SPEECH - is used for spoken word applications.
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 oor.
©
Page 8
Copyright LOTRONIC 2018
F I R S T- S e r i e s
www.bst-dj.com

D S P C O N T R O L O F F U L L R A N G E

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 SUSPEND mode.
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 ashing 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.

©
Page 9
Copyright LOTRONIC 2018
MUSIC
Dj1 Dj2
Low Pass
OFF(default)
80Hz
150Hz
12" 15"
DELAY
OFF(default)
LCD DIM
ON(default)
OFF
BRIGHT
5(default)
1-10 adjust
INFO
Brand Prouduct Name
Firmware Version
EXIT
F I R S T- S e r i e s
www.bst-dj.com

D S P C O N T R O L O F S U B W O O F E R

The subwoofer DSP control menu selections are availa ble fo r the 12", 15'' and 18'’ subw oofers.
Mode LIVE(default)
100Hz 120Hz
0-30ms
POLARITY POL+(default)
POL
RESET ON(default)
ARE YOU SURE? YES OR NO

* 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 subwoofer delivers.
Available options for this selection are: MUSIC, LIVE, and CLUB.
LIVE - is used for recorded music playback and EDM applications. (Default)
MUSIC - is used for live sound applications.
DJ1- is used for recorded electronic music playback.
DJ2 - is used for recorded electronic music playback.

LOW PASS Menu

The LOW PASS menu is used to select low pass frequency for proper summation with a full-range loudspeaker. Available
options for this selection are: 80Hz, 100Hz, 120Hz, 150Hz, 12", 15". The low passes are 24dB / octave Linkwitz / Riley slopes.
The 80Hz, 100Hz, 120Hz, and 150 Hz selections are generic low pass settings for use with other full-range loudspeaker
systems. 12", 15" settings are specifically optimized for full-range loudspeakers for best summation. The default is OFF.

POLARITY Menu

The POLARITY Menu is used to adjust the loudspeaker polarity. The default is Polarity+.

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.
©
Page 10
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