Digital Crossover Network/Filter DCN 23
EUR 241,00 
DCN23 is a high performance digital crossover filter with equalization and delay.
It features 2 balanced analogue inputs and 3 single-ended analogue outputs (of which the third has
an inverted output for easy bridging at e.g. low frequencies). The usage of high performance Burr-Brown
converters gives DCN23 crystal clear sound and very low noise floor. The sample rate is 96 kHz to extend
bandwidth and have low order analogue low pass output filtering. The resolution of converters is 24 bit and
the internal signal processor resolution is 76 bit. The signal processor holds 3 channels of 16 biquads each
for filtering and equalization. DCN23 has an optical isolated RS232 interface to avoid hum and noise from the PC.
The circuit board is a high quality 4 layer type which prevents noise and hum. The layout features a lot of
decoupling - at supply entry and very close to all active components.
DCN23 is the heart of an active speaker management system offering a superb sound,
easy installation and ease of use in daily life.
The XOver Wizard program is a graphical tool to manipulate with inputs, outputs, gain, crossover frequencies,
crossover slopes, equalization and delay. The XOverWizard has a very significant feature: The ability to
import a text file containing measured driver data of frequency, sound pressure level and phase.
With these data the XOverWizard are able to display frequency response and more, while design are in progress.
Compared to this method the “old” trial and error method seems obsolete. The loading of parameters
to filter are updated within about 1.5 seconds.
PDF data sheet.
more information for using DCN23 with power supply PDF data sheet
Download the XOverWizard software and try it.
If you are looking for a kit containing two Digital Crossover Network/Filter DCN 23 and two power supplies:
Digital Crossover Network/Filter DCN 23 KIT
EUR 693,00
DCN23-Kit with two DCN 23 and two power supplys, if you want to buy the power amplifiers separately
more information to the kit PDF-Beschreibung
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Power Amplifier PA 1CC
EUR 100,00 
PA1 CC is a bipolar power amplifier of classical design working in class AB with moderate power consumption.
Specifications:
Max. power output: 120/80W at 4/8 Ohm
Supply voltage: +/- 25V till +/- 65V
Frequency response: 5 - 150 kHz (-3dB)
Slew rate: > 40V/µs
Distortion: < 0.08%
S/N: > 120 dB
Gain: 20.5 dB
Input impedance: 4kOhm
Output impedance: < 0.1 Ohm
Mute control
Weight: app. 150g
Overall dimensions: 90 x 80 x 32 mm
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PA1CC consists of a differential cascode coupled input stage controlled by a current generator.
The input stage is totally discret to optimize for linearity and bandwidth. The voltage gain stage is
current source stage, which is differentially symmetric. The output stage is of high current gain being an easy
load to the voltage gain stage. The output stage consists of 2 pieces totally complimentary high speed power
bipolar transistors.
PA1CC has short circuit protection, thermal protection and rail fuses to prevent output device break down.
PA1CC features sonic excellence, constant low output impedance, low noise, low distortion and high reliability.
The maximum power output depend on voltage supply, heat sink and load conditions.
Recommendations: Voltage supply of +/- 50V, heat sink less than 0,5 K / W and minimum load of 4 Ohm.
PDF data sheet
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Power Amplifier PA 3CC
EUR 196,00
PA3 CC is a bipolar power amplifier of classical design working in class AB with moderate power consumption.
Specifications:
Max. power output: 400/200W at 4/8 Ohm
Supply voltage: +/- 35V till +/- 95V
Frequency response: 5 - 150 kHz (-3dB)
Slew rate: > 40V/µs
Distortion: < 0.08%
S/N: > 120 dB
Gain: 22 dB
Input impedance: 4kOhm
Output impedance: < 0.1 Ohm
Mute control
Weight: app. 320g
Overall dimensions: 180 x 75 x 32 mm
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PA3CC consists of a differential cascode coupled input stage controlled by a current generator.
The input stage is totally discret to optimize for linearity and bandwidth.
The voltage gain stage is also cascode coupled, which is differentially symmetric in class A,
to achieve low distortion at high frequencies. The output stage is of high current gain being an easy
load to the voltage gain stage. The output stage consists of 6 pieces totally complimentary high
speed high power bipolar transistors.
PA3CC are decoupled at positive and negative supply with 2.2uF polypropylene capacitors.
PA3CC has short circuit protection, thermal protection and rail fuses to prevent output device break down.
PA3CC features sonic excellence, constant low output impedance, low noise, low distortion and high reliability.
The maximum power output depend on voltage supply, heat sink and load conditions.
Recommendations: Voltage supply of +/- 65V, heat sink less than 0,3 K / W and minimum load of 2 Ohm.
PDF data sheet
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Power Amplifier PA 6CC
EUR 291,00
PA6CC is a very powerful bipolar amplifier of classical design working in class AB with moderate power consumption.
Specifications:
Max. power output: 800/400W at 4/8 Ohm
Supply voltage: +/- 35V till +/- 95V
Frequency response: 5 - 150 kHz (-3dB)
Slew rate: > 40V/µs
Distortion: < 0.08%
S/N: > 120 dB
Gain: 23.5 dB
Input impedance: 4kOhm
Output impedance: < 0.1 Ohm
Mute control
Weight: app. 540g
Overall dimensions: 320 x 70 x 32 mm
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PA6CC consists of a differential cascode coupled input stage controlled by a current generator.
The input stage is totally discret to optimize for linearity and bandwidth. The voltage gain
stage is also cascode coupled, which is differentially symmetric in class A, to achieve low
distortion at high frequencies. The output stage is of high current gain being an easy load
to the voltage gain stage. The output stage consists of 12 pieces totally complimentary
high speed high power bipolar transistors.
PA6CC are decoupled at positive and negative supply with 2.2uF polypropylene capacitors.
PA6CC has short circuit protection, thermal protection and rail fuses to prevent output device break down.
PA6CC features sonic excellence, constant low output impedance, low noise, low distortion and high reliability.
The maximum power output depends on voltage supply, heat sink and load conditions.
Recommendations: Voltage supply of +/- 85V, heat sink less than 0,1 K / W and minimum load of 2 Ohm.
PDF data sheet
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Power Supply Unit PSU 4SA
EUR 223,00
Specifications:
Supply voltage: 230-240V AC
Maximum current: 15A AC
4 Audio Grade Capacitors 100V
Total capacity >19000µF
Linear regulated 3.3V 150mA
Linear regulated 5V 150mA
Linear regulated +/-15V 150mA
Softstart & mute control
Auto Sensing & Operation Switch
On / Stand by LED's
Weight: app. 650g
Overall dimensions: 108 x 175 x 61 mm
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PSU4SA is a complete power supply unit with a lot of features.
It provides power for DCN 23 and a number of PA 1CC or PA 3CC or other high quality amplifier modules.
PSU4SA has separate linear regulated voltages of 3.3V, 5V and +/-15V to supply the DCN23.
An input sensing circuit keeps an eye on signal inputs at DCN23 to auto start the power amplifiers.
A switch selects between ON - STAND BY - AUTO SENSING to make ease of use in daily life.
If on or signal is present this switches the transformer relay on. The transformer ramps up the
4 pieces low ESR capacitor bank by soft start circuit limiting inrush current to about 7A.
When ready the power amplifiers are unmute by pulldown to GND. There are two LED's to indicate
STAND BY or ON.
PSU4SA will insure enough resources for the power amplifier modules to easily
drive even difficult speaker impedances.
PDF data sheet
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Power Supply Unit PSU 12SA
EUR 291,00
Specifications:
Supply voltage: 230-240V AC
Maximum current: 15A AC
12 Audio Grade Capacitors 100V
Total capacity >56000µF
Linear regulated 3.3V 150mA
Linear regulated 5V 150mA
Linear regulated +/-15V 150mA
Softstart & mute control
Auto Sensing & Operation Switch
On / Stand by LED's
Weight: app. 1300g
Overall dimensions: 180 x 175 x 61 mm
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PSU12SA is a complete power supply unit with a lot of features. It provides power for DCN23 and a number of PA3CC or PA6CC or
other high quality amplifier modules.
PSU12SA has separate linear regulated voltages of 3.3V, 5V and +/-15V to supply the DCN23.
An input sensing circuit keeps an eye on signal inputs at DCN23 to auto start the power amplifiers.
A switch selects between ON - STAND BY - AUTO SENSING to make ease of use in daily life.
If on or signal is present this switches the transformer relay on. The transformer ramps up the 12 pieces
low ESR capacitor bank by soft start circuit limiting inrush current to about 7A.
When ready the power amplifiers are unmute by pulldown to GND. There are two LED's to indicate STAND BY or ON.
PSU12SA will insure enough resources for the power amplifier modules to easily drive even difficult speaker impedances.
PDF data sheet
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Power Supply Unit PSU 8
 - not available
Specifications:
Maximum current: 15A AC
8 Audio Grade Capacitors 100V
Total capacity >376000µF
35A bridge rectifier for less power losses
Two bleeder resistors for failure safety
Weight: app. 550g
Overall dimensions: 70 x 175 x 61 mm
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PSU8 is a power supply unit. It provides power for a number of PA1CC, PA3CC, PA6CC or other high quality amplifier modules.
PSU8 will insure enough resources for the power amplifier modules to easily drive even difficult speaker impedances.
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Power Supply Unit PSU DCN
EUR 121,00
Specifications:
Supply voltage: 230-240V AC
Supplying one DCN23
Linear regulated 3,3V digital supply 150mA
Linear regulated 5V analog supply 150mA
Linear regulated +/- 15V op-amp supply 100mA
incl. relay board for DCN23 outputs
Delayed unmute by relays
Fast muting by relays
On LED
Weight: app. 350g
Overall dimensions psu: 75mm x 115mm x 32mm
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PSU DCN incl. Relay board
PSU DCN is a power supply unit intended to supply 1 DCN23.
PSU DCN features a mains filter to suppress noise generated on the main line 230Vac to avoid unwanted noise output of the DCN23.
Another feature is the relay board.
If the DCN23 are used as a standalone filter, the relay board should be placed between
DCN23 and the amplifiers to avoid power on and power off generated noise.
The relay board has delay unmute and rapid mute function.
The output of the relay board is "pseudo-balanced" to enhance noise suppression on long cables.
Notice that a normal 2- or 3-way stereo setup demands 2 DCN23 and 2 PSU DCN, one of each per channel.
Our philosophy is to place crossover and amplifiers as close as possible to the loudspeaker to avoid long loudspeaker cables.
This is possible due to the mono design of DCN23 and PSU DCN.
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Specifications:
Transformer 300VA
Supply voltage: 230-240V/50-60Hz
2 x 35V 300VA
Toroidal transformer
Silent Design
Centerpotted
Mounting hole 8mm
weight: 6kg
dimensions: 110 mm (dia.) x 65 mm
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Specifications:
Transformer 600VA
Supply voltage: 230-240V/50-60Hz
2 x 45V 600VA
Toroidal transformer
Silent Design
Centerpotted
Mounting hole 8mm
weight: 6kg
dimensions: 140 mm (dia.) x 65 mm
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Transformer TR 1500
- not available
Specifications:
Transformer 1500VA
Supply voltage: 230-240V/50-60Hz
2 x 60V 1500VA
Toroidal transformer
Super Silent Design
Centerpotted
Mounting hole 8mm
weight: 16kg
dimensions: 200 mm (dia.) x 100 mm
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