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What items are included in the SUBZERO KS25A package?
Please check all the items in your SUBZERO KS25A package:
The SUBZERO KS25A product (1 pcs)
USB cable (1 pcs)
User’s manual CD (1 pc)
What are the safety precautions I should follow when using the SUBZERO KS25A?
Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical shock, damage, fire or other hazards. These precautions include, but are not limited to, the following:
Read and understand all the instructions.
Always follow the instructions on the instrument.
Before cleaning the instrument, always remove the electric plug from the outlet as well as the USB cable. When cleaning, use a soft and dry cloth. Do not use gasoline, alcohol, acetone, turpentine or any other organic solutions; do not use liquid cleaner, spray cleaner or a wet cloth.
Do not use the instrument near water or moisture, in places such as a bathtub, washbasin, or washing sink in the kitchen.
Do not place the instrument on an unstable surface where it might accidentally fall over.
Do not jam sinks or holes of the instrument; these are used for air circulation to prevent the instrument from overheating. Do not place the instrument near any places with poor air circulation.
Do not place anything on the power cord. Make sure the power cord is set in a safe place, so nobody will step on it or trip over it.
Do not insert anything in the instrument which may cause fire or electrical shock. Do not splash any kind of liquid on the instrument.
Do not disassemble the instrument in case of accidental electrical shock.
Always take the instrument to a qualified service centre if in need of repair. You will endanger yourself if you open or remove the cover, and improper assembly may cause electrical shock in future use.
Unplug all the connectors and take the instrument to a qualified service centre if any of the below occurs: (1) The power cord or connector gets damaged or worn out. (2) Any liquid gets into the instrument. (3) The instrument is rained on or splashed. (4) The instrument does not work properly after following all the instructions. (5) The instrument falls down or gets broken. (6) The instrument functions poorly.
Do not use the instrument in thunder; otherwise the thunder may cause long-distance electrical shock.
When the power cord is connected to the AC outlet, do not touch the exposed part of the cord or the connector.
Keep the instrument away from dust, heat and vibration.
SubZero is not responsible for any damage or data loss caused by improper operation to the instrument.
All the pictures and the LED displays in the manual are used for demonstration; they may be different from the real instrument.
What are the functions of the front panel controls on the SUBZERO KS25A?
EDIT Button: Use this button to open/close keyboard multi-function.
DATA +/- Buttons: Assignable buttons, which could be assigned as 160 controllers. The initial setting is 154th controller: octave adjustment.
SWITCH Button: Use this button to switch function groups of dials R1~R4 and R5~R8.
SLIDER: An assignable fader that can be assigned as 148 controllers. The initial setting is 147th controller: master volume.
PITCH BEND Wheel: An assignable wheel that can be assigned as 148 controllers. The initial setting is 146th controller: pitch bend wheel.
MODULATION Wheel: An assignable wheel that can be assigned as 148 controllers. The initial setting is 1st controller: modulation wheel.
R1~R8 Dials: These are assignable dials with an independent channel distributed to each dial, and each dial can be assigned as 160 controllers. The initial channel of R1~R4 is 0, initial controller numbers are 152, 153, 156, 157, which controls program, channel, tempo and keyboard velocity curve respectively. The initial channels of R5~R8 are 0~3, initial controller number is 7, which controls the volume of channels 0~3 respectively. The function group of R1~R4 and R5~R8 is switched by the SWITCH button.
What do the indicators on the SUBZERO KS25A front panel signify?
EDIT Indicator: When the EDIT indicator is on, keyboard multi-function is on and vice versa.
OCTAVE/TRANSPOSE Indicator: When this indicator is on, it indicates that there’s upper/lower octave adjustment. When the indicator flickers slowly, it indicates that there’s upper/lower transpose adjustment. When the indicator flickers quickly, it indicates that there’s upper/lower octave and transpose adjustment at the same time; and when the indicator is off, it indicates that there’s no upper/lower octave nor transpose adjustment.
Dial Function Group Indicator: When the corresponding indicator of R1~R4 is on, the current dial function group is R1~R4; if the indicator of R5~R8 is on, the current dial function group is R5~R8.
LED: This LED displays the current number/status information.
How do I connect and power the SUBZERO KS25A?
The SUBZERO KS25A is connected to PC via a USB cable. This connection powers the keyboard and is used to transfer the MIDI data to PC. In addition, you can connect to other devices such as a sound module to send out MIDI data via the MIDI output port.
The SUBZERO KS25A can also be used when connected to an optional 9V DC power supply. In this case the MIDI data will only be sent out via the MIDI output port.
Rear Panel Connections:
MIDI OUT: MIDI output interface.
PEDAL A: Pedal A input interface, which can connect to pedals of both switching type and continuous type. It can be assigned as 152 controllers; the initial setting is soft pedal.
PEDAL B: Pedal B input interface, which can connect to pedals of both switching type and continuous type. It can be assigned as 152 controllers; the initial setting is sustain pedal.
USB: USB interface.
DC9V: 9V power input interface.
OFF/ON: Power Off/On.
How do I assign controllers on the SUBZERO KS25A?
Press the EDIT button to enter keyboard multi-function mode. Press the ASSIGN button to enter controller assignment mode.
The LED shows CHO, reminding the user to choose the controller that needs to be assigned.
Operate the required controller to select it (For example, if you want to assign SLIDER, slide the Slider to select).
The LED shows the controller number of the selected controller.
Input the desired assignable parameter value with the numeric pad, and press ENTER to confirm (for example, if Slider is selected, input 147 and the Slider is assigned as Master Volume Controller).
How do I adjust the pedal resistance curve on the SUBZERO KS25A?
You can adjust the pedal resistance curve to better work with pedals of different specifications and resistance values.
Estimate resistance curve value: Value of PA Curve or PB Curve= (128*pedal resistance value) / (10K+pedal resistance value). For instance, if the pedal resistance value is 10K, the value of PA Curve or PB Curve is: 128*10K/ (10K+10K) =64.
For pedal resistance value, please refer to the technical specifications provided by pedal manufacturer.
The resistance curve estimation does not need to be very accurate, or you could simply adjust it without calculation, as long as the travel and succession of the pedal satisfy your needs.
The initial value of the resistance curve is 64, adaptable to most pedals in the market.
When you use a switching type pedal, the recommended resistance curve value is 64.
When DATA +/- is assigned as PA CURVE or PB CURVE, DATA +/- can be used to adjust resistance curve values. Press the two buttons of DATA +/- at the same time to set the resistance curve value to initial 64.
When the dials (R1~R4 or R5~R8) are assigned as PA CURVE or PB CURVE, they can be used to adjust pedal resistance value.
How can I adjust the Tempo on the SUBZERO KS25A?
When DATA +/- is assigned as TEMPO, it can be used to adjust tempo. Press DATA +/- at the same time to set the tempo to initial 100.
When the dials (R1~R4 or R5~R8) are assigned as TEMPO, they (R1~R4 or R5~R8) can be used to adjust tempo.
How do I change the Program on the SUBZERO KS25A?
When DATA +/- is assigned as PROGRAM, DATA +/- can be used to adjust program. Press DATA +/- at the same time to set the program number to initial 0.
When the dials (R1~R4 or R5~R8) are assigned as PROGRAM, they (R1~R4 or R5~R8) can be used to adjust program.
Press EDIT button to enter keyboard multi-function mode, press PROGRAM button to enter program adjustment mode, then input the program number with numeric pad and press ENTER to confirm.
How do I adjust the MIDI Channel on the SUBZERO KS25A?
When DATA +/- is assigned as CHANNEL, use DATA +/- to adjust general MIDI channel. Press DATA +/- buttons at the same time to set general MIDI channel to initial 0.
When dial R1~R4 or R5~R8 are assigned as CHANNEL, use dial R1~R4 or R5~R8 to adjust general MIDI channel.
Press EDIT button to enter keyboard multi-function mode, and then press CHANNEL to enter channel adjustment mode, and then use numeric pad to enter general MIDI channel number and press ENTER to confirm.
Press EDIT button to enter keyboard multi-function mode, and then press CHANNEL to enter channel adjustment mode. Operate the desired dial from R1~R4 or R5~R8 to select that dial, and then use numeric pad to enter the channel number of that dial in current group, and press ENTER to confirm.
How do I use the Transpose function on the SUBZERO KS25A?
When DATA +/- is assigned as TRANSPOSE, use DATA +/- to adjust transpose. Adjustment range is +/- 12 semitones. Press DATA +/- buttons at the same time to set transpose to initial 0.
Hold EDIT and use DATA +/- to adjust transpose. Adjustment range is +/- 12 semitones. Hold EDIT and DATA +/- at the same time to set transpose to initial 0.
When dial R1~R4 or R5~R8 are assigned as TRANSPOSE, use dial R1~R4 or R5~R8 to adjust transpose. Adjustment range is +/- 12 semitones.
How do I adjust the Octave on the SUBZERO KS25A?
When DATA +/- is assigned as OCTAVE, use DATA +/- to adjust octave. Adjustment range is +/- 3 octaves. Press DATA +/- buttons at the same time to set octave to initial 0.
When dial R1~R4 or R5~R8 are assigned as OCTAVE, use dial R1~R4 or R5~R8 to adjust octave. Adjustment range is +/- 3 octaves.
How do I use the Dual function on the SUBZERO KS25A?
Press EDIT button to enter keyboard multi-function mode, and then press DUAL to open/close dual function.
Dual and keyboard split functions cannot be used simultaneously. Open dual will turn off keyboard split function.
How do I use MTC and Mute functions on the SUBZERO KS25A?
MTC: Press EDIT button to enter keyboard multi-function mode, and then press MTC to open/close sending MTC message (F8).
MUTE: Press EDIT button to enter keyboard multi-function mode, and then press MUTE to open/close mute function. No message will be transmitted under Mute mode.
What is the Snap Shot function on the SUBZERO KS25A?
Press EDIT button to enter keyboard multi-function mode, and then press SNAP SHORT, DATA +/-, SLIDER, WHEEL, PEDAL, R1~R4 and R5~R8 and etc all together to transmit those data at one time.
How do I upload and download parameters between the SUBZERO KS25A and a computer using Cubase?
You can upload or download user parameters using the USB port. The transmit messages are system exclusive messages (F0~F7).
From SUBZERO KS25A to computer (UPLOAD):
1. Use USB cable to connect computer and SUBZERO KS25A.
2. Set SUBZERO KS25A parameters.
3. Open a new MIDI project in Cubase.
4. Select SUBZERO KS25A as MIDI input and neglect output.
5. Uncheck the box – SYSEX in RECORD to validate system message. (FILE-> PREFERENCES-> MIDI-> MIDI FILTER).
6. Cubase starts to record.
7. Press EDIT button to enter keyboard multi-function mode, and then press UPLOAD, SUBZERO KS25A enters into system message upload mode. LED displays SEu. After upload completes, LED displays don.
8. Cubase stops recording.
9. In Cubase, select MIDI->OPEN LIST EDITOR to find received system message; press COMMENT to open system message window and use EXPORT to save the message in *.SYS format.
From computer to SUBZERO KS25A (DOWNLOAD):
1. Use USB cable to connect computer and SUBZERO KS25A.
2. Open a new MIDI project in Cubase.
3. Select SUBZERO KS25A as MIDI output.
4. Export saved system message file (*.SYS) into Cubase.
5. Press EDIT button to enter keyboard multi-function mode, and then press DOWNLOAD, SUBZERO KS25A enters into system message download mode. LED displays SEd.
6. Cubase starts to playback and transmit system message to SUBZERO KS25A.
7. LED displays don after SUBZERO KS25A finishes receiving correct system message.
8. Use SNAP SHOT function together to transmit download setting message to sequent device.
How do I upload and download parameters between the SUBZERO KS25A and a computer using Cakewalk?
From SUBZERO KS25A to computer (UPLOAD):
1. Use USB cable to connect computer and SUBZERO KS25A.
2. Set SUBZERO KS25A parameters.
3. Open a new MIDI project in Cakewalk.
4. Select SUBZERO KS25A as MIDI input and neglect output.
5. Open system message window: VIEW->SYSX; select a BANK and decrease; select YOU START DUMP ON INSTRUMENT and then Cakewalk enters into system message receive mode.
6. Press EDIT button to enter keyboard multi-function mode, and then press UPLOAD, SUBZERO KS25A enters into system message upload mode. LED displays SEu. After upload completes, LED displays don.
7. Use SAVE in Cakewalk to save received message in *.SYS format.
From computer to SUBZERO KS25A (DOWNLOAD):
1. Use USB cable to connect computer and SUBZERO KS25A.
2. Open a new MIDI project in Cakewalk.
3. Select SUBZERO KS25A as MIDI output.
4. Open system message window: VIEW->SYSX; select a BANK and import saved system message file.
5. Press EDIT button to enter keyboard multi-function mode, and then press DOWNLOAD, SUBZERO KS25A enters into system message download mode. LED displays SEd.
6. Use Cakewalk system message send function to send system message to SUBZERO KS25A.
7. LED displays don after SUBZERO KS25A finishes receiving correct system message.
8. Use SNAP SHOT function together to transmit download setting message to sequent device.
How do I switch dial function groups on the SUBZERO KS25A?
Press SWITCH to shift dial function group between R1~R4 or R5~R8.
How do I use the All Note Off and All Sound Off functions on the SUBZERO KS25A?
ALL NOTE OFF: Press EDIT button to enter keyboard multi-function mode, and then press ALL NOTE OFF to transmit all notes off message (Controller #123), in case of abnormal constant sound from system or external sound module.
ALL SOUND OFF: Press EDIT button to enter keyboard multi-function mode, and then press ALL SOUND OFF to transmit all sound off MIDI message (Controller #120), in case of abnormal constant sound from system or external sound module.
How do I reset controllers or initialize GM/GS/XG on the SUBZERO KS25A?
RESET ALL CONTROLLERS: Press EDIT button to enter keyboard multi-function mode, and then press RESET ALL CONTROLLER to transmit all reset all controllers message (Controller #121).
GM/GS/XG ON: Press EDIT button to enter keyboard multi-function mode, and then press GM/GS/XG ON to transmit GM initialization message (F0 7E 7F 09 01 F7), GS initialization message (F0 41 10 42 12 40 00 7F 00 41 F7), and XG initialization message (F0 43 10 4C 00 00 7E 00 F7).
PRESET: Press EDIT button to enter keyboard multi-function mode, and then press PRESET to return to factory preset.
What are the Assignable Controller Parameter Lists for the SUBZERO KS25A?
| NO. | ITEM | INITIAL CHANNEL | PARAMETER RANGE | INITIAL PARAMETER | INITIAL PARAMETER VALUE |
|---|---|---|---|---|---|
| 1 | Data +/- | 0 | 0~159 | 154 | 0 |
| 2 | Slider | 0 | 0~147 | 147 | 0 |
| 3 | Wheel P | 0 | 0~147 | 146 | 64 |
| 4 | Wheel M | 0 | 0~147 | 1 | 0 |
| 5 | Pedal A | 0 | 0~151 | 64 | 0 |
| 6 | Pedal B | 0 | 0~151 | 67 | 0 |
| 7 | R1 | 0 | 0~159 | 152 | 0 |
| 8 | R2 | 0 | 0~159 | 153 | 0 |
| 9 | R3 | 0 | 0~159 | 156 | 100 |
| 10 | R4 | 0 | 0~159 | 157 | 0 |
| 11 | R5 | 0 | 0~159 | 7 | 100 |
| 12 | R6 | 1 | 0~159 | 7 | 100 |
| 13 | R7 | 2 | 0~159 | 7 | 100 |
| 14 | R8 | 3 | 0~159 | 7 | 100 |
What do the LED Status codes mean on the SUBZERO KS25A?
| NO. | STATUS | DEFINITION |
|---|---|---|
| 1 | xxx | 3 Digit Display |
| 2 | xx | Upper Transpose Value |
| 3 | -xx | Lower Transpose Value |
| 4 | x | Upper Octave Value |
| 5 | -x | Lower Octave Value |
| 6 | CHO | (1) Under Assign Mode: indicate the controller to be assign. (2) Under Split Point Mode: indicate keyboard Split point. |
| 7 | ON/OFF | Certain function On/Off, or pedal polarity positive/negative. |
| 8 | don | Certain function done. |
| 9 | Err | Operation error. |
| 10 | SEu | Parameters upload. |
| 11 | SEd | Parameters download. |
What are the technical specifications of the SUBZERO KS25A?
| ITEM | SPECIFICATIONS |
|---|---|
| Keyboard | 25 Keys, C2-C4, Initial Touch. |
| Function | MIDI Data: Program Select, Bank Select, Sequencer Control, MTC, Controller Change, GM, GS, XG System Reset and etc. Controllable Parameters: Transpose, Octave, MIDI Transmit Channel, Velocity Curve Adjust, Keyboard Split Point and etc. |
| Panel & Indicator | 4xAssignable Dials. 1xDial Group Function Shift Button (incl. 2 Indicators.) 2xAssignable Data +/- Buttons (incl. 2 Indicators.) 1xEdit Button (incl. 1 Indicator.) |
| Display | 8 Segments, 3 Digits LED. |
| Input & Output | 1xMIDI Out. 1xUSB Port. 1xPedal Input (KS25A). 1xDC Input. 1xPower Switch. |
| Power Supply | 9V DC. USB Power. |
What is the Assignable Controller Parameter List detailing Controller Numbers and Definitions for the SUBZERO KS25A?
| CONTROLLER NO. | DEFINITION | INITIAL VALUE | VALUE RANGE |
|---|---|---|---|
| 0 | Bank Select MSB | 0 | 0-127 |
| 1 | Modulation MSB | 0 | 0-127 |
| 2 | Breath MSB | 127 | 0-127 |
| 3 | Controller | 0 | 0-127 |
| 4 | Foot Controller MSB | 127 | 0-127 |
| 5 | Portamento time MSB | 0 | 0-127 |
| 6 | Data Entry MSB | 2 | 0-127 |
| 7 | Channel Volume MSB | 100 | 0-127 |
| 8 | Balance MSB | 64 | 0-127 |
| 9 | Controller | 0 | 0-127 |
| 10 | Panpot MSB | 64 | 0-127 |
| 11 | Expression MSB | 127 | 0-127 |
| 12 | Effect Control 1 MSB | 0 | 0-127 |
| 13 | Effect Control 2 MSB | 0 | 0-127 |
| 14-31 | Controller | 0 | 0-127 |
| 32 | Bank Select LSB | 0 | 0-127 |
| 33 | Modulation LSB | 0 | 0-127 |
| 34 | Breath LSB | 127 | 0-127 |
| 35 | Controller | 0 | 0-127 |
| 36 | Foot Controller LSB | 127 | 0-127 |
| 37 | Portamento time LSB | 0 | 0-127 |
| 38 | Data Entry LSB | 0 | 0-127 |
| 39 | Channel Volume LSB | 127 | 0-127 |
| 40 | Balance LSB | 64 | 0-127 |
| 41 | Controller | 0 | 0-127 |
| 42 | Panpot LSB | 64 | 0-127 |
| 43 | Expression LSB | 127 | 0-127 |
| 44-63 | Controller | 0 | 0-127 |
| 64 | Sustain | 0 | 0-127 |
| 65 | Portamento | 0 | 0-127 |
| 66 | Sostenuto | 0 | 0-127 |
| 67 | Soft Pedal | 0 | 0-127 |
| 68 | Legato FootSwitch | 0 | 0-127 |
| 69 | Hold 2 | 0 | 0-127 |
| 70 | Sound Controller | 64 | 0-127 |
| 71 | Resonance | 64 | 0-127 |
| 72 | Release Time | 64 | 0-127 |
| 73 | Attack Time | 64 | 0-127 |
| 74 | Cutoff | 64 | 0-127 |
| 75 | Decay Time | 0 | 0-127 |
| 76 | Vibrato Depth | 64 | 0-127 |
| 77 | Vibrato Depth | 64 | 0-127 |
| 78 | Vibrato Depth | 64 | 0-127 |
| 79 | Sound Controller | 64 | 0-127 |
| 80-83 | Controller | 0 | 0-127 |
| 84 | Portamento Control | 0 | 0-127 |
| 85-90 | Controller | 0 | 0-127 |
| 91 | Reverb | 40 | 0-127 |
| 92 | Effects | 0 | 0-127 |
| 93 | Chorus | 0 | 0-127 |
| 94 | Effects | 0 | 0-127 |
| 95 | Effects | 0 | 0-127 |
| 96 | RPN Increment | 0 | 0-127 |
| 97 | RPN Decrement | 0 | 0-127 |
| 98 | NRPN LSB | 0 | 0-127 |
| 99 | NRPN MSB | 0 | 0-127 |
| 100 | RPN LSB | 0 | 0-127 |
| 101 | RPN MSB | 0 | 0-127 |
| 102-119 | Controller | 0 | 0-127 |
| 120 | All Sound Off | 0 | 0-127 |
| 121 | Reset All Controllers | 0 | 0-127 |
| 122 | Local Control | 0 | 0-127 |
| 123 | All Notes Off | 0 | 0-127 |
| 124 | OMNI Off | 0 | 0-127 |
| 125 | OMNI On | 0 | 0-127 |
| 126 | Mono | 0 | 0-127 |
| 127 | Poly | 0 | 0-127 |
| 128 | Pitch Bend Sensitivity (RPN) | 2 | 0-127 |
| 129 | Channel Fine Tuning (RPN) | 64 | 0-127 |
| 130 | Channel Coarse Tuning (RPN) | 64 | 0-127 |
| 131 | Modulation Depth Range (RPN) | 64 | 0-127 |
| 132 | Vibrato Rate (NRPN) | 64 | 0-127 |
| 133 | Vibrato Depth (NRPN) | 64 | 0-127 |
| 134 | Vibrato Delay (NRPN) | 64 | 0-127 |
| 135 | Filter Cutoff Frequency (NRPN) | 64 | 0-127 |
| 136 | Filter Resonance (NRPN) | 64 | 0-127 |
| 137 | EQ Low Gain (NRPN) | 64 | 0-127 |
| 138 | EQ High Gain (NRPN) | 64 | 0-127 |
| 139 | EQ Low Frequency (NRPN) | 64 | 0-127 |
| 140 | EQ High Frequency (NRPN) | 64 | 0-127 |
| 141 | EG Attack Time (NRPN) | 64 | 0-127 |
| 142 | EG Decay Time (NRPN) | 64 | 0-127 |
| 143 | EG Release Time (NRPN) | 64 | 0-127 |
| 144 | Polyphonic key pressure | 100 | 0-127 |
| 145 | After touch | 100 | 0-127 |
| 146 | Pitch Bend | 64 | 0-127 |
| 147 | Master Volume | 100 | 0-127 |
| 148 | Start (MTC) | – | – |
| 149 | Continue (MTC) | – | – |
| 150 | Stop (MTC) | – | – |
| 151 | Reset (MTC) | – | – |
| 152 | Program | 0 | 0-127 |
| 153 | Global Channel | 0 | 0-15 |
| 154 | Octave | 0 | -3~3 |
| 155 | Transpose | 0 | -12~12 |
| 156 | Tempo | 100 | 20-250 |
| 157 | Keyboard Curve | 0 | 0-4 |
| 158 | Pedal A Curve | 64 | 1-127 |
| 159 | Pedal B Curve | 64 | 1-127 |
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