Wharfedale Pro SC-48 FIR User Manual

SC-48 FIR

Digital System Processor

www.wharfedalepro.com

FUNCTIONS
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32 bit DSP processor. 48 KHz sampling rate. 24-bit AD/DA convertors.
Input processing includes 8PEQ, FIR phase EQ processing, Gain, Mute, Phase, Delay,and Linking.
Output processing includes IIR and FIR Crossover ﬁlter, 9PEQ, Gain, Mute, Peak limiter, Compressor, Phase,
Delay, and Linking.
Digital input and output functions. AES/EBU input and output channels using XLR connectors.
Adjustable PEQ Gain, Bandwidth and Frequency for all channels. Choose between Peak, L-shelf, H-shelf,
Low- cut, High- cut, ALLPASS1 and ALLPASS2.
All input and output channels have independent phase curve and PEQ adjustment functions. Choose
between ALLPASS1 / 180° curve adjust, and ALLPASS2 / 360° curve adjust.
IIR crossover ﬁlter types can be selected : Butterworth, Linkwitz- Riley, Bessel, Slope is -6 dB/oct ~-48 dB/oct.
All input channels have independent 512 Taps asymmetric FIR ﬁlters for system phase correction, equalizationand frequency division processing. Perfectly compatible with third-party application data import.
All output channels have adjustable 256-1024 Taps asymmetric FIR ﬁlters for system phase correction,equalization and frequency division processing. Perfectly compatible with third-party application data import.
As well as FIR divider mode selection, frequency, type and optional TAPS.
Adjustable independent output compressor with threshold, soft knee, ratio, attack time and release timeparameters.
Adjustable independent output Peak limiter functions and adjustable threshold, attack time and releasetime parameters.
Maximal delay time 680 ms for all input/output channels.
Parameter settings can be copied for every single channel and the channels can be linked.
Internal signal generator (pink, white noise and 20Hz-20KHz sine wave with adjustable amplitude).
Front panel features high-precision level indicators, channel editing keys, mute keys, menu keys, parameterencoding wheel and USB control port.
Rear panel includes 1 x AES input connector and 1 x AES output connector plus RS232 & 485 control port.
20 user presets. Each preset can be saved and recalled. Device parameters can be uploaded and downloaded.
255 units can be linked together via ID settings.
Password protection function for high security applications.

FRONT PANEL

3

1

2

4

5

7

6

8

10

9

1. LCD
Shows the related operation parameters and the status of current operation.
2. PARAMETER EDIT KEYS
Choose all the system menus/input parameters and output parameters. Exit by pressing the ”Exit” key.
3. PARAMETER EDIT KNOB
Edit the parameters. Conﬁrm the data input by pressing the knob.
4. INPUT LEVEL INDICATORS
5-segment high precision LEDs show the status of the input channel's level.
5. INPUT EDIT KEYS
Press to enter into the relevant channel. Parameters will show on the LCD.
6. INPUT MUTE KEYS
Mute any channel by pressing and unmute by pressing again.

1

FRONT PANEL
7. OUTPUT EDIT KEYS
Press to enter the relevant channel. The edit status parameter will show on the LCD.
8. OUTPUT MUTE KEYS
Mute the channel by pressing and unmute by pressing again.
9. OUTPUT LEVEL INDICATORS
4-segment high precision LEDs and 1 compressor signal LED shows the status of the output level and thecompressor on current channel.
10. USB
Used to connect to the PC and center-control equipment.

REAR PANEL
4

1

2

3

5

6

1. POWER SOCKET
2. POWER ON/OFF SWITCH
3. RS232/485 INTERFACE
Center-control by rs232, cascade control by rs485.
4. ETHERNET CONNECT CONTROL PORTFor network control.
5. SIGNAL OUTPUT PORT 1-8.
6. SIGNAL INPUT PORT A-D.

OPERATION GUIDE
Below status after power on:
Power on. Displays the model and ﬁrmware version.

SC-48 FIR
Processor

V1.0

SC-48 FIR

After self-checking, displays the model and the current user preset.

F00 Default Preset

UTIL menu
ID Number Select
ID: 1

Manual IP Set
192. 168. 1. 101

Press UTIL key to enter the ID status. When using cascade connection, thesetting is 1-254. (If the cascade connection has more than 16 units or covers
a long distance, a loaded 120 ohm resistance should be connected in parallel
by RS485 network end-point.)
Press UTIL a second time to enter the Manual IP Set mode. The factory default
address is 192.168.1.101. The IP of each machine can be set to diﬀerent addresses
according to diﬀerent network environment.

2

OPERATION GUIDANCE
Input

SelectANALOG

OutputSelectANALOG

Unit

Lock

Password[1234]

In

SourceSelectANALOG

INPUT

Copy CH Select
InA -> InBLCDDISPLAY

TIME

10 Second

Press down a third time to enter input channel digital and analog signal select ,ANALOG is analog input. AES/EBU is digital input.
Press down a fourth time to enter output channel digital and analog signal
selection. ANALOG is analog output, AES/EBU is digital output.
Press down a ﬁfth time to enter password setting. You can choose all the words
or numbers to set the password you want. The initial password is “1234”.
Press down a sixth time to enter signal source selection: pink noise, white noiseand sine wave 20 Hz-20 KHz.
Press down a seventh time to enter the channel copy interface:Parameter settings can be copied for every input and output channel.
Press down an eighth time to enter the LCD backlight time setting:maximum 200 ms.
Preset menu interface

Load
F00

PresetDefault

Store
U01

PresetPresetDefault1

PresetPress “PRESET” key to enter the preset select setting.
You can recall any user preset U01-U20 and factory settings F00
using the rotary encoder.
Press “PRESET” key again to enter the save preset interface.
You can save the adjusted parameters in any U01-U20 user location.
Input channel EDIT menu interface

GAIN

INA
+0.0 dB

PHASE
NormalFIR
TAPS:512

INA

Press the “GAIN” key again to enter PHASE adjust setting.
Phase scale is (0°/180°).

INA

Press down “X-over” to enter the FIR BYPASS settings. If FIR is not required,select ON.

0

BYPASS:ON

DELAY

INA
0.000ms
0.000m0.000ft

Press “DELAY” key to enter the delay settings. Maximum delay is 680 ms.
Can be displayed as “ms”, “m” or “ft”

C:

INA
D:

Press down “DELAY” key again to enter linking adjustment selection:
If the current channel is INA, you can choose INB, INC, IND channel to adjust
parameters simultaneously and together.

FREQ:
TYPE:

INA
25.3 BY
PEAK

Press down “PEQ” key to enter the parameter settings. PEQ current ﬁlter number is 8 ,"G" is -12 dB - +12 dB and the scale of “FREQ” is 20 Hz-20 KHz. “Q” is 0.4-128.
The ﬁlter types are Peak, Low-shelf, High-shelf, Low-cut, High-cut, Allpass1,
Allpass2 and Bypass (which is √).

IN-LINK
A:
B:

FEQ:1
G: 0.0
Q:3.00Press input channel “EDIT” key to enter input channel function setting interface.
Default option is “GAIN”, the scale is -60 dB -+12 dB.

3OPERATION GUIDANCE
Output channel EDIT menu interface
GAIN

OUT1
+0.0 dB

PHASE

OUT1

Normal0

Press output channel “EDIT” key to enter output channel settings. The default
is “GAIN”. The scale is -60 dB - +12 dB.
Press down “GAIN” again to enter the phase parameter setting.
The scale is 0°/180°.

XOVER
MODE
IIR

HP:
LP:

OUT1
19.6 BYPASS
20K15 BYPASS

Press down “X-OVER” key to enter IIR crossover settings. “HP” frequency adjust
range is 20 Hz-20 KHz. “LP” frequency adjust range is 20 Hz- 20 KHz. The
HP/LP ﬁlter has three types and diﬀerent slopes can be selected: Butterworth,
Linkwitz- Riley, Bessel. The slope is -6 dB/oct ~-48 dB/oct.

FIR
MODE
FIR

OUT1
T:512 W:SINC
BY
H: 250.0
L: 20K15

Select FIR mode from “X-OVER” to enter FIR settings: “T” is FIR TAPS. The
range is 256-1024. “W” is FIR curve type. “BY” is crossover type selection. HP,
LP and band-pass can be selected. “H” is HP frequency. 150 Hz-20 KHz canbe selected. “L” is LP frequency 150 Hz-20 KHz can be selected.

OUT1

Press “DELAY” key to enter the delay function setting: maximum delay is 680 ms,
Units can be displayed as : “ms”, “m” or “ft”.

DELAY

0.000ms

0.000m
OUT-LINK

1:
5:

2:
6:

FEQ:1
G: 0.0
Q: 3.00

3:
7:

FREQ:
TYPE:

MATRIX

A:

B:

C:

MIX
A:+
C:+

0.0 dB B:+
0.0 dB D:+COMPRESSOR
T+20.0A: 50

0.000ft
OUT1

4:
8:

Press down “DELAY” again to enter the linking adjustment settings. If thecurrent channel is OUT1, you can choose OUT2, OUT3, OUT4, OUT5, OUT6,
OUT7, OUT8. Channel parameters can be adjusted simultaneously.

OUT1
40.2 BY
PEAK

Press down the “PEQ” key to enter the PEQ settings. PEQ current ﬁlter number is 9 .
"G" is -12 dB - +12 dB. The scale of “FREQ” is 20 Hz-20 KHz. “Q” is 0.4-128.
The types of ﬁlter are Peak, Low-shelf, High-shelf, Low-cut, High-cut, Allpass1,
Allpass2 and Bypass (which is √).

OUT1

Press down the “MATRIX” key to enter the matrix settings. All the output
channels can freely choose one or several input signals.

D:

OUT1
0.0 dB
0.0 dBINA

R:1.0
K 0 PASS
R: 500 F: 1K00

LIMIT
OUT1
T:+ 20.0
R:LIMT K: 0 dB
AT: 50 ms
REL: 500 ms

Press down “MATRIX” again to enter the matrix routing output gain settings.
The factory default is 0 dB. Adjustment range is -60 dB - 0 dB.
Press down “DYNAMIC” again to enter the COMPRESSOR settings. “T” iscompression value -60 dB -+20 dB, “R” is the compression ratio 1:1, 1:10, LIMIT.
“K” is soft knee 0-12 dB. “A” is attack time 10-900 ms, “R” is release time 10-3000 ms.
“F” and “PASS” are dynamic compressor settings, which are frequency andtype settings ( low pass, high pass and band-pass without “Q”. ).
Press down “DYNAMIC” again to enter the limiter settings. “T” is threshold value.
-60 dB - +20 dB. “R” is limit ratio. 1:1, 1:10, LIMT, “K” is soft knee 0-12 dB.
“AT” is the attack time 10-999 ms. “ REL” is the release time adjustable between
10-3000 ms. If the output is used as a limiter, the ratio defaults to LIMIT.

4PC SOFTWARE
Notice: User manual and PC software are on the enclosed CD. Due to software upgrades that may be released
always get the latest version from www.wharfedalepro.com

DSP Processor

PC or laptop

USB cord

1. Install the PC software from the CD. (or download)

2. Connect the processor to the computer by USB. After turning on the device the computer will ﬁnd new
hardware automatically. Then the hardware will install and you can use it.

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PC SOFTWARE
3. Open the PC software. The PC software will ﬁnd USB and connect to the device. After that the onLine key
turns green at the top right corner and shows “Online”. You can then operate the processor by the software.
Click the “Online” button then close the software interface before exiting.

PAGE 1: VOLUME CONTROL INTERFACE
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PC SOFTWARE
1, Menu
File

Open and save preset parameters. Upload and download to and from thecomputer.

Link

Input and output channels can be set freely to adjust all of the parameters.

Copy

Freely copy parameters between the input and output channels.

Lock

Set the panel lock password to ensure the safety of the device.

Setting ID

To cascade control more than 255 devices by setting diﬀerent IDs

In Select

Input signal selection. AES/EBU digital or ANALOG.

Out SelectOutput signal selection. AES/EBU digital or ANALOG.

Test Tone

Built-in signal generator. Pink noise, white noise and sine wave.
20 Hz - 20 KHz.

Channel Name

The channel name can be easily edited.

Language

Select between Chinese and English language operation menus.

Help

RS232 control protocol codes for reference.

2. Spectrum Area:
You can freely choose PEQ and phase.
3. The Volume Control Area:
Gain, Phase, Mute control for all input and output channels.
4. Preset Operation Area:
Save or convert preset parameters and show current preset parameter status.
PAGE 2 : COMPRESSOR INTERFACE

1

2

1. Shows the compression status, level indicators and status of all channels.
2. Sets the compression parameters for the output channel. The compression range is -90dB-+20dB,
ratio is 1:1, 1:10, LIMIT, attack time is: 1-999 ms, release time is 10-3000 ms and soft knee is 0 dB-12 dB.

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PC SOFTWARE
PAGE 3 : LIMITER INTERFACE

1

2

1. Shows the limiter status, level indicators and status of all channels.
2. All output channel limiter parameters can be set: threshold is -90 dB to + 20 dB, ratio is 1:1, 1:10, LIMIT,
attack time is 1-999 ms, release time is 10-3000 ms and soft knee is 0 dB-12 dB .It is the peak limiter when
the ratio is LIMIT.
PAGE 4 : DELAY INTERFACE

1

2

1. Shows the delay parameter status of all channels.
2. Can adjust the delay parameters of all channels. The scale is 0-680 ms,
The Units of the delay can be displayed in ms, meters or feet.

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PC SOFTWARE
PAGE 5 : MATRIX INTERFACE

1

2

1. Shows the connections of the device. You can enter and edit channels by clicking the related square.
Every channel name can also be edited.
2. Any output channel can choose any routing connection from input channel signal source and the level canbe set independently.

PAGE 6 : INPUT INTERFACE

1

2

1. PEQ and Low-cut & High-cut curves for all output channels could be adjusted if you select the Mag interface.
The Phase curve of current channel could be adjusted if you select the Phase interface. Besides, you canchoose to show PEQ and Phase curves that are not in the current channel synchronously.
2. Gain, Q value, frequency, type of PEQ are adjustable, as well as the bypass key. PEQ type includes EQ, L-shelf,
H-shelf, L-cut, H-cut, Phase 180°and Phase 360°.
3. Gain, Q value, frequency of PEQ could be adjusted by putter, or controlled by pressing the UP, DOWN, LEFT,RIGHT keys on the keyboard.
4. 512Taps FIR is supported in default for input channel. Click “Fireﬁle” folder to load the data.The software
supports .CSV and .TXT format imports. After importing the ﬁle, the number will show on the Taps, FIR ﬁlename will show on the Name, PEQ curve diagram will immediately show FIR curve. If Bypass FIR parameteris needed, please just click “ON”. Normally 512Taps FIR is recommended. If the larger the Taps, the longer
the latency will be. For example, with 1024Taps, the latency will be as much as 10ms.
5. Gain, Mute, Phase could be controlled independently in input channel, as well as the level indicator.

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PC SOFTWARE
PAGE 7 : OUTPUT INTERFACE

1. PEQ and Low-cut & High-cut curves for all output channels could be adjusted if you select the Mag interface.
The Phase curve of current channel could be adjusted if you select the Phase interface. Besides, you canchoose to show PEQ and Phase curves that are not in the current channel synchronously.
2. Gain, Q value, frequency, type of PEQ are adjustable, as well as the bypass key. PEQ type includes EQ, L-shelf,
H-shelf, L-cut, H-cut, Phase 180°and Phase 360°.
3. Gain, Q value, frequency of PEQ could be adjusted by putter, or controlled by pressing the UP, DOWN, LEFT,RIGHT keys on the keyboard.
4. The slope 20Hz-20KHz of L-cut could be adjusted, and “Butterworth”, “Bessel” or “Linkwitz-Riley” could bechosen to use.
5. The slope 20Hz-20KHz of H-cut could be adjusted, and “Butterworth”, “Bessel” or “Linkwitz-Riley” could bechosen to use.
6. Gain, Mute, Phase could be controlled independently in output channel, as well as the level indicator.

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SPECIFICATION

System Speciﬁcation

Input Section

Output Section

Digital Processing

Frequency Response

20 Hz~20 KHz, -0.3 dBu

S/N Ratio>110 dBu

Distortion(THD)<0. 005 at 1 KHz(0 dBu)

Cross-talk<100 dB below full scale

Type

Balanced XLRMax. Input Level+15 dBu

Impedance

20 K/Stereo; 10 K/MONO

Type

Balanced XLRMax. Output Level (bypass)+20 dBu

Impedance<500 Ω

24-bit sigma - delta converters
48 KHz Sampling Rate

Display

Dot matrix screen display For Parameters Setting And Function SelectPower Supply

AC~95 V-240 V

Dimension (LxWxH)

48.2x24.7x4.4 cm

Weight2.7 kgFUSE 250 VAC/2 A FASTSUPPLIED ACCESSORIES
1. One USB cord.
2. One electrical cord.
3. CD containing PC software and PDF user manual11

REAR PANEL CONTROL PORT CONNECTIONS
1. Ethernet connection port for direct connection to the computer through network cabling. Multiple devices
can be connected to a switch for control, but remember to set each devices IP and ID diﬀerently. It also
can also connect to wireless routers but again remember to set each device IP and ID diﬀerently or it will fail
to connect or will cause network address conﬂicts.

SWITCHETHERNETCONNECTION PORTROUTER

IP：192.168.1.101

IP：192.168.1.102
1. RS232 connection port for central system control.

The 2PIN is: TXD, 3PIN
is:RXD, 5PIN is: GND

RS232/ USB
CONVERTER

PC or laptop

12REAR PANEL CONTROL PORT CONNECTIONS
3. RS485 cascade control port: Parallel connect several devices by RS485. You can choose diﬀerent IDs tocascade control separately.

PC

ID: 1

ID: 2

ID: 3

The 7PIN is: RS485 D+ , 8PIN is: RS485
D- of the RS232 port.

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EXTENDED REMOTE CONTROL PROTOCOL
1, Control package
0

1

2

3

4

5

6

7

8

DLE

STX

Device

CMD

Data1

Data2

Date3

STX

DLE

0x41～0x4A

0x??

0x? ?

0x??

0x7D

0x7B

Assress
Packet

0x7B

0x7D

1～254

0

1

2

3

4

5

6

7

8

DLE

STX

DeviceCMD

In/OutChannel

+ /-

STX

DLE

0x41

In: 0 Out: 1

0～3+: 0, - : 1

0x7D

0x7B

2, Command Detail(1) Gain Control(0x41)

Assress
Packet

0x7B

0x7D

1～254

Example (increase input channel 1 gain): 7B7D01410000007D7B(2) Mute Control(0x42)
0

1

DLE

STX

2

3

4

5

6

7

8

DeviceCMD

In/OutChannelNo/Yes

STX

DLE

0x42

In: 0 Out: 1

0～3

No:0 Yes:1

0x7D

0x7B

Assress
Packet

0x7B

0x7D

1～254

Example (input channel 1 mute): 7B7D01420000017D7B(3) Load Preset Control(0x43)
0

1

2

3

4

5

6

7

8

DLE

STX

DeviceCMD

Factory/User

Preset

0x30

STX

DLE

0x43

F: 0 U: 1

0～31

0

0x7D

0x7B

Assress
Packet

0x7B

0x7D

1～254

Example (recall user preset U00):7B7D01430100007D7B

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EXTENDED REMOTE CONTROL PROTOCOL(4) Input Volume Control(0x44)

Packet

0

1

2

3

4

5

6

7

8

DLE

STX

DeviceAssress

CMD

Channel

HI-VOL

LO-VOL

STX

DLE

0x7B

0x7D

1～254

0x44

00～07

0x??

0x??

0x7D

0x7B

Example (InA volume +0.0dB): 7B7D01440001187D7B(5) Output Volume Control(0x45)

Packet

0

1

2

3

4

5

6

7

8

DLE

STX

DeviceAssress

CMD

Channel

HI-VOL

LO-VOL

STX

DLE

0x7B

0x7D

1～254

0x45

00～07

0x??

0x??

0x7D

0x7B

Example（Out 2 volume - 3.0dB): 7B7D01450100FA7D7B(6) Get Now Gain(0x48)
0

1

2

3

4

5

6

7

8

DLE

STX

DeviceCMD

In/OutChannel

0x30

STX

DLE

0x48

In: 0 Out: 1

0～3

0

0x7D

0x7B

Assress
Packet

0x7B

0x7D

1～254

Example (read input channel 1 gain parameter): 7B7D01480000007D7B
MCU Return: 0x00～0x90=-60dB～+12dB, 0.5dB/Step(7) Get Now Mute(0x49)
0

1

DLE

STX

2

3

4

5

6

7

8

DeviceCMD

In/OutChannel

0x30

STX

DLE

0x49

In:0 Out:1

0～3

0

0x7D

0x7B

Assress
Packet

0x7B

0x7D

1～254

Example (read input channel 1 mute parameter): 7B7D01490000007D7B
MCU Return: 0x00 or 0x01=Un-Mute or Mute

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EXTENDED REMOTE CONTROL PROTOCOL(8) Get Now Preset(0x4A)
0

1

2

3

4

5

6

7

8

DLE

STX

Device

CMD

0x30

0x30

0x30

STX

DLE

0x4A

0

0

0

0x7D

0x7B

Assress
Packet

0x7B

0x7D

1～254

Example (read preset parameter): 7B7D014A0000007D7B
MCU Return: 0x00～0x32=0: F00, 1～32:U00～U31

Communication
parameter

Bits per second

115200Stop bits

1

Data bits

8

Step>=20msParity

None

ID

1

16

IMPORTANT WARNINGS & SAFETY INSTRUCTIONS

17

Wharfedale Pro products are warranted of manufacturing or material defects for a period of
three years from the original date of purchase. In the event of malfunction, contact yourauthorised Wharfedale Pro dealer or distributor for information.
Please be aware that the warranty details may diﬀer from country to country. Contact your dealer or distributor for
information (available at www.wharfedalepro.com). These terms do not infringe your statutory rights.

WHARFEDALE PROFESSIONAL
IAG House, 13/14 Glebe Road, Huntingdon, Cambridgeshire, PE29 7DL, UK
www.wharfedalepro.com
Wharfedale Professional reserves the right to alter or improve speciﬁcations without notice.
All rights reserved © 2023 Wharfedale Pro. Wharfedale Pro is a member of the IAG Group.

April 2023