General

The Digital Drive Processor, DDP™, is an exchangeable signal processing device, which is complementary to the Alcons ALC controller-amplifiers. The device offers a range of speaker-specific processing and controlling options, enabling the ALC to optimally drive the Alcons speaker systems.

Emphasizing Alcons’ “system synergy” philosophy, the DDP module with powerful 56 bit, 120 Mips DSP engine has been designed to offer intuitive control and utmost reliability while preserving the sonic excellence of Alcons’ pro-ribbon based sound systems.

The SDP™ circuit of the ALC can be seen as the “brain” of the amplifier; Activating the DDP converts the ALC from a “standard” stereo power-amp into a dedicated amplified loudspeaker controller. The analog (single channel) SDP modules or the digital (dual channel) DDP module can be placed into the SDP slots, located in the front of the ALC.

Features

The Digital Drive Processor features three individual processing functions, all operating at the same time. The sections consist of fixed, factory-set functions and variable, user-definable functions, with channel-dependent control.

The control of the DDP is done by a single “click & rotate” encoder with ergonomic, logical operation.

DDP - Alcons Audio - Loud and Clear1) Input section:
This section features channel-dependent gain control and mute function.
It also provides a signal routing matrix for configuring signal distribution over the 2 channels (input selection: input 1 or input 2 individual; input 1 > input 2; input 2 > input 1; input 1 > inputs 1+2; input 2 > inputs 1+2, inputs 1+2 > input 1, inputs 1+2 > input 2).

2) System Drive section:
This section provides system controlling and optimizing, with presets for all available Alcons systems and system configurations. Simply select the correct speaker and speaker configuration and all parameters are set to give the best sonic performance; Protection, dedicated filtering, optimised system response.

The Intelligent Driver Guidance IDG™ processing offers optimized power response through “True-RMS” intelligent power limiting guidance and (separate) excursion limiting guidance.

Crossover filtering is done with “Von Helsing’s Filterslope Architecture”; This filter design protocol consists of dedicated, hybrid Bessel, Butterworth or Linkwitz Riley responses.

The optimization of the system’s response is taken care of by factory-set dedicated driver alignment and system configuration equalising a.o.

3) User control section:
This sections offers user definable equalising and delay functions.

The equalising can be done through 4-bands of parametric equalising per channel; Each band provides +12dB to – 19dB gain with a choice of 83 selectable frequencies. Each band can also act as notch-filter. The filters feature CSQ™ (Constant & Symmetrical Q), with a selectable Q from 0.3 to 15, in 36 steps.

Per channel there’s also a user-definable delay function; The delay can be set from 1 to 294ms. for a total of 99.9m/ 328ft. delay

Up to 99 user-presets can be made, consisting of factory system preset, gain, input-mode, equalising and delay, or a selection of each of these functions. The presets can be tagged with a 21-character name.

Apart from the three processing sections, another important feature is the LimitLog™. In combination with the internal crystal-controlled daytime clock, this function provides real-time signal logging; A visual tracing report on the signal present and dB limiting of the selected system, over the elapsed period of time.

With up to 420.000 minute samples, a usage history of more than 7.000 operating hours can be read out.

Furthermore, the DDP is fitted with a wide-angle view backlit LCD; The large display of 128×64 dots, enables a complete processor status report with just a single view.
The display can be configured for 10-seconds Time-out, or 9-level Dimmer-mode; The display also features a 9-step contrast control.

Firmware updates are performed via the side-located USBport; Dedicated boot-loader software makes the firmware updates internet-downloadable.

DDP

Dimensional Drawing »

Technical Specifications

General
I/O 2 in /2 out
Gain range -59dB – +6dB
Frequency response 10Hz – 45kHz @ -3dB
Total harmonic distortion <0.01%
D/A Section
Type Delta-Sigma conversion,
128 times oversampling
Sample rate 96kHz
Word length 24 bit (27 bit, stacked)
Dynamic range 128dB A-weighted
D/A Section
Type Delta-Sigma conversion,
128 times oversampling
Sample rate 96 kHz
Word length 24 bit
Dynamic range 123 dB A-weighted
Internal processing 48 bits, fixed point
System Drive section all Alcons systems and configurations selectable
Equaliser section 2 x 4-band, parametric
Delay section 2 x 294ms (99.9m / 328ft)
Display blue/white 128×64 dots
Weight 300g
Dimensions HxWxD 50 x 240 x 32 mm
Warranty 3 years

 

General

  • 1x 3-phase 16 A CEE-form AC
  • 2x XLR signal in/out
  • 3x NL8 + AC loudspeaker out

Features

The IO3 panel features power, signal input and loudspeaker output connections:

Power: one (1) three-phase 16Amp CEE-form connector (red) that leads to a 3-way Schucko socket block (one phase per socket), so up to three (3) ALC’s can be powered, each with their own power supply / phase.

Signal: one (1) 3-pin XLR female input connector that leads to one (1) cable with 3-pin XLR male, to be connected to the ALC signal input. From there, the signal can be linked from one ALC to the other by short XLR-XLR link cables. One (1) 3-pin XLR male output connector. To be used as signal distribution to other ALC racks.

Loudspeaker: three (3) NL8 output connectors that lead to three (6) NL4 cables/connectors, to be connected to the NL4 loudspeaker outputs of the ALC. This is used to connect Alcons active-filtered cabinets.

 

General

  • 1x 3-phase 16 A CEE-form AC
  • 2x XLR signal in/out
  • 4x NL4 + AC loudspeaker out

Features

The IO4/4 panel features power, signal input and loudspeaker output connections:

Power: one (1) three-phase 16Amp CEE-form connector (red) that leads to a 3-way Schucko socket block (one phase per socket), so up to three (3) ALC’s can be powered, each with their own power supply / phase.

Signal: one (1) 3-pin XLR female input connector that leads to one (1) cable with 3-pin XLR male connector, to be connected to the ALC signal input. From there, the signal can be linked from one ALC to the other by short XLR-XLR link cables. One (1) 3-pin XLR male output connector. To be used as signal distribution to other ALC racks.

Loudspeaker: four (4) NL4 output connectors that lead to four (4) NL4 cables/connectors, to be connected to the NL4 loudspeaker outputs of the ALC. This is used to connect Alcons passive-filtered cabinets or subwoofers.

 

General

  • 1x 3-phase 16 A CEE-form AC
  • 4x XLR signal in/out
  • 2x NL4 + AC loudspeaker out
  • 2x NL8 + AC loudspeaker out

Features

The IO4/4 panel features power, signal input and loudspeaker output connections:

Power: one (1) three-phase 16Amp CEE-form connector (red) that leads to a 3-way Schucko socket block (one phase per socket), so up to three (3) ALC’s can be powered, each with their own power supply / phase.

Signal: one (1) 3-pin XLR female input connector that leads to one (1) cable with 3-pin XLR male connector, to be connected to the ALC signal input. From there, the signal can be linked from one ALC to the other by short XLR-XLR link cables. One (1) 3-pin XLR male output connector. To be used as signal distribution to other ALC racks.

Loudspeaker: four (4) NL4 output connectors that lead to four (4) NL4 cables/connectors, to be connected to the NL4 loudspeaker outputs of the ALC. This is used to connect Alcons passive-filtered cabinets or subwoofers.

 

The B series is the bass range; From high quality low frequency extension to high pressure bass output can be found in this category. To be combined with any Alcons cabinet.

BF151
BF151i
Features
  • Single 15” vented woofer (4 ohms)
  • 42Hz – 300Hz (+/- 3dB)
  • SPL program/peak (nom.) 127dB / 135dB
  • Signal Integrity Sensing™ pre-wired
  • Stand mount
  • Double baffle board w. flush mount transducers
  • Durotect™ scratch-resistant coating

The BF151 is available in standard version, or installation version. The BF151i (“install”) comes without handles, castor wheels, cover and standmount adapter.

Read more »

BF181
BF181i
Features
  • Single 18” woofer (4 ohms)
  • 33Hz – 200Hz (+/- 3dB)
  • SPL program/peak (nom.) 128dB / 136dB
  • Signal Integrity Sensing™ pre-wired
  • Stand mount
  • Double baffle board w. flush mount transducers
  • Durotect™ scratch-resistant coating

The BF181 is available in standard version, or installation version. The BF181i (“install”) comes without handles, castor wheels, cover and standmount adapter.

Read more »

BR302
BF302i
Features
  • Double 15” vented woofer
  • 42Hz. – 300Hz. (+/- 3dB)
  • SPL program/peak (nom.) 133dB / 141dB
  • Signal Integrity Sensing™ pre-wired
  • Large, centrally placed vent
  • Double baffle board w. flush mount transducers
  • Durotect™ scratch-resistant coating

The BF302 is available in standard version, or installation version. The BF302i (“install”) comes without handles, castor wheels and cover.

Read more »

BR362
BF362i
Features
  • Double 18” woofer
  • 33 – 150Hz. (+/-3dB)
  • SPL program/peak (nom.) 134 / 141dB
  • Signal Integrity Sensing pre-wired
  • Large, centrally placed vent
  • Double baffle board w. flush mount transducers
  • Durotect™ scratch-resistent coating

The BF362 is available in standard version, or installation version. The BF362i (“install”) comes without handles, castor wheels and cover.

Read more »

BQ211
BQ211i
Features
  • Single 21” woofer with all-carbon cone (4 ohms)
  • Double-tuned, quarter-wave pipe loading
  • 33 – 150Hz. (+/-3dB)
  • SPL peak (comp.) 140dB
  • Improved breathing and low power compression
  • Signal Integrity Sensing pre-wired
  • Durotect™ scratch-resistent coating

The BQ211 is available in standard version, or installation version. The BQ211i (“install”) comes without handles, castor wheels and cover.

Read more »

BC543
BC543i
Features
  • Triple 18” woofer with all-carbon cone for high
    pressure loading
  • Double-tuned, bass-reflex loaded cardioid-control
    subwoofer system
  • 35 – 150Hz. (+/-3dB)
  • SPL peak (comp.) 141dB
  • Signal Integrity Sensing pre-wired
  • Durotect™ flexible and scratch-resistant coating

The BC543 is available in standard version, or installation version. The BC543i (“install”) comes without handles, castor wheels and cover.

Read more »

  • Long-excursion, vented-spider 15” in medium tuned cabinet
  • 15mm Birch with clever bracing brings lightweight yet rigid cabinet construction
  • Double baffle board with flush mount transducer
  • SIS pre-wired for very high damping and further reduced distortion (with ALC)
  • Dedicated protection in combination with SDP modules (with ALC)
  • Durotect™ scratch-resistant coating
  • Stand mount adapter

Description

QB363 The BF151 is a front-loaded subwoofer system, for both permanent and portable applications. Featuring a single 15” long-excursion high-power woofer (with vented double-spider frame), the BF151 delivers high quality, tight and accurate bass response. 

The SIS pre-wiring ensures complete cable/ connector compensation between the BF151 and ALC. Typical applications for the BF151 include bass extension of main sound systems, used in multiples depending on the application and low frequency requirements.

The higher tuning makes the BF151 an ideal highpower punch-bass system for pop/rock/disco, in combination with a V-series top cabinet.

For full system performance, we recommend using the BF151 in combination with an ALC4 amplifier/ controller. Driven by the ALC, the BF151 delivers maximum sound quality and output power with dedicated and inaudible (power and excursion!) protection (SDP circuit).
Dimensional Drawing »

Technical Specifications

Frequency Response
+/- 3 dB 42 Hz – 300 Hz
+/- 10 dB 38 Hz –
Sensitivity (SPL 1W/M) 97 dB
Nominal Impedance 4 ohms
Maximum RMS power 1000 W
Maximum peak power 7000 W
SPL program/peak (nom.) 127dB / 135dB
Dispersion H x V (array) omni

Physical Specifications

System subwoofer, front loaded
Drivers LF 1 x AW15.4 15″  vented
Cross-over frequency 44 Hz recommended
Connectors 2 x Speakon NL4 input / link
Physical dimensions mm
Height 460
Width 596
Depth 500
Weight (approx.) 38kg
Warranty 6 years limited

 

  • Long-excursion, vented-spider 18” in deep-tuned cabinet
  • 15mm Birch with clever bracing brings lightweight yet rigid cabinet construction
  • Double baffle board with flush mount transducer
  • SIS pre-wired for very high damping and further reduced distortion (with ALC)
  • Dedicated protection in combination with SDP modules (with ALC)
  • Durotect™ scratch-resistant coating
  • Stand mount adapter

Description

BF181 The BF181 is a front-loaded subwoofer system, for both permanent and portable applications. Featuring a single 18” long-excursion high-power woofer (with vented double-spider frame), the BF181 delivers high quality, tight and accurate sub-bass response. 

The Signal Integrity Sensing™ pre-wiring ensures complete cable/connector compensation between the BF181 and ALC. Typical applications for the BF181 include sub-bass extension of main sound systems, used in multiples depending on the application and low frequency requirements.

The deep-tuning makes the BF181 an ideal highpower HiFi-reproduction system for classical, acoustical and jazz music, in combination with a VR8 or VR12 (on standmount).

The 4 ohms nominal impedance makes for a good amplifier loading, when used in singles.

For full system performance, the BF181 needs to be driven by an ALC controller-amplifier. Driven by the ALC, the BF181 delivers maximum sound quality and output power with dedicated and inaudible (power and excursion!) protection (SDP circuit).
Dimensional Drawing »

Technical Specifications

Frequency Response
+/- 3 dB 33 Hz – 200 Hz
+/- 10 dB 27 Hz –
Sensitivity (SPL 1W/M) 98 dB
Nominal Impedance 4 ohms
Maximum RMS power 1000 W
Maximum peak power 7000 W
SPL program/peak (nom.) 128dB / 136dB
Dispersion H x V (array) omni

Physical Specifications

System subwoofer, front loaded
Drivers LF 1 x AW18.4 18″ vented
Cross-over frequency 36 Hz recommended
Connectors 2 x Speakon NL4 input / link
Physical dimensions mm
Height 628
Width 596
Depth 712
Weight (approx.) BR181 56.2kg
Weight (approx.) BF181i 48.6kg
Warranty 6 years limited

 

  • Individual vents/chambers for improved air velocity and flow capacity
  • Double extended-excursion vented-spider 15″ woofers
  • 15mm Birch with clever bracing brings lightweight yet rigid cabinet construction
  • Double baffle board with flush mount transducers
  • SIS pre-wired for very high damping and further reduced distortion (with ALC)
  • Dedicated protection in combination with SDP modules (with ALC)
  • Durotect™ scratch-resistant coating

Description

BF302 The BF302 is a front-loaded subwoofer system, for both permanent and portable applications. Featuring double 15” long-excursion high-power woofers (with vented double-spider frame), the BF302 delivers high quality, tight and accurate bass response. 

The SIS pre-wiring ensures complete cable/connector compensation between the BF302 and ALC. Typical applications for the BF302 include bass extension of main sound systems, used in multiples depending on the application and low frequency requirements.

The higher tuning makes the BF302 an ideal high-power punch-bass system for live- or club sound, in combination with an Alcons top cabinet / array.

For full system performance, we recommend using the BF302 in combination with an ALC4 (or ALC6) amplified loudspeaker controller. Driven by the ALC, the BF302 delivers maximum sound quality and output power with dedicated and inaudible (power and excursion) protection (SDP circuit).

The BF302 is available in standard version, or installation version. The BF302i (“install”) comes without handles, castor wheels and cover.

Dimensional Drawing »

Technical Specifications

Frequency Response
+/- 3 dB 42 Hz – 300 Hz
+/- 10 dB 38 Hz –
Sensitivity (SPL 1W/M) 100 dB
Nominal Impedance 4 ohms
Maximum RMS power 2000 W
Maximum peak power 14000 W
SPL program/peak (nom.) 133dB / 141dB
Dispersion H x V (array) omni

Physical Specifications

System subwoofer, front loaded
Drivers LF 2 x AW15.4 15″ vented
Cross-over frequency 45 Hz recommended
Connectors 2 x Speakon NL4 input / link
Physical dimensions mm
Height 1147
Width 460
Depth 500
Weight (approx.) BR181 77.0kg
Weight (approx.) BF181i 65.0kg
Warranty 6 years limited

 

  • Large, centrally placed vent for improved air velocity and flow capacity
  • 15mm Birch with clever bracing brings lightweight yet rigid cabinet construction
  • Double baffle board with flush mount transducers
  • SIS pre-wired for very high damping and further reduced distortion (with ALC)
  • Dedicated protection in combination with SDP modules (with ALC)
  • Durotect™ scratch-resistant coating

Description

BF302 The BF362 is a front-loaded subwoofer system, for both permanent and portable applications. Featuring double 18” long-excursion high-power woofers (with vented double-spider frame), the BF362 delivers high quality, tight and accurate subbass response.

The SIS pre-wiring ensures complete cable/ connector compensation between ALC and BF362, further increasing response accuracy. Special attention has been paid to the tuning of the system; Target was to combine deep sub bass output with substantial kick-bass. With a limited boost in the lower octaves, response can be further extended. Typical applications for the BF362 include sub-bass extension of main sound systems, used in multiples depending on the application and low frequency requirements.

For full system performance, we recommend using the BF362 in combination with an ALC 2 (or ALC 4) amplifier/controller. Driven by the ALC, the BF362 delivers maximum sound quality and output power with dedicated and inaudible (power and excursion!) protection (SDP circuit).

The BF362 is available in standard version, or installation version. The BF362i (“install”) comes without handles, castor wheels and cover.

Dimensional Drawing »

Technical Specifications

Frequency Response
+/- 3 dB 33 Hz – 150 Hz
+/- 10 dB 27 Hz –
Sensitivity (SPL 1W/M) 101 dB
Nominal Impedance 4 ohms
Maximum RMS power 2000 W
Maximum peak power 12000 W
SPL program/peak (nom.) 133dB / 141dB
Dispersion H x V (array) omni

Physical Specifications

System subwoofer, front loaded
Drivers LF 2 x AW18.4 18″ centrally vented
Cross-over frequency 30 Hz recommended
Connectors 2 x Speakon NL4 input / link
Physical dimensions mm
Height 1196
Width 596
Depth 712
Weight (approx.) BF362 95kg
Weight (approx.) BF362i 82.8kg
Warranty 6 years limited

 

  • Double-tuned, quarter-wave loaded high-impact subwoofer system
  • 21” woofer with all-carbon cone for high pressure loading
  • Large, rounded vent for improved breathing and low compression
  • Force-ventilated 5.3” voice-coil for low power compression prolonged performance
  • 15mm birch with extensive bracing brings lightweight yet rigid cabinet construction
  • SIS™ pre-wired for very high damping and further reduced distortion (with ALC)
  • Durotect™ flexible and scratch-resistant coating

Description

BQ211 The BQ211 is a quarter-wave loaded subwoofer system, extending the low frequency response of Alcons’ pro-ribbon systems, in both permanent and portable applications. Featuring a state-ofthe- art 21” Neodymium transducer, this subwoofer is designed to offer maximum, prolonged high impact SPL performance from a relative small footprint. For this, the latest materials and innovations have been applied: A very large displacement transducer with all-carbon fiber cone + dust cap, 5.3” voice-coil with vented triple-spider frame plus optimized low resistance impedance, and port-vented magnet structure to maximally reduce power compression.

The extensively internally-braced cabinet features features double-tuned, high-pressure loading, through a rounded 236mm diameter low-tuned bass-reflex vent and a wide, high-tuned quarter wave tunnel. This provides optimised breathing at high SPLs, yet keeping the total system weight to a minimum.
Slider feet on cabinet bottom and side enable stacking of multiple BQ211’s into vertical LF arrays: The additional front-positioned NL4 connector caters for easy “reverse connection” in cardioid arrays.

The BQ211 is powered and controlled by the ALC amplified loudspeaker controller; Through the SDP™ (Speaker Drive Processor) circuit, the ALC offers BQ211-specific drive processing with response optimisation, dedicated power and excursion protection, hybrid filtering and cardoid processing.

Through the SIS™ (Signal Integrity Sensing) circuit, the cable-length and connector resistance between the BQ211 and ALC is completely compensated (damping factor 10.000), further increasing response accuracy.
The quarter wave pipe principle in combination with a low tuning frequency, forms a true wideband subwoofer with high SPL performance down to the lowest frequencies.

Typical applications for the BQ211 include groundstacked sub-bass extension of main sound systems, used in multiples depending on the application and sound pressure level / dispersion pattern control requirements.

Dimensional Drawing »

Technical Specifications

Frequency Response
+/- 3 dB 33 Hz – 150 Hz
+/- 10 dB 27 Hz –
Sensitivity (SPL 1W/M) 100 dB
Nominal Impedance 4 ohms
Recommended drive ALC4 min., 1 pce. per channel (4 ohms)
SPL program/peak (nom.) 135dB (ALC 6) / 140dB (comparative)
Dispersion H x V (array) omni / (hyper) cardioid in array with processing

Physical Specifications

System subwoofer, bass reflex + quarter wave pipe
Drivers LF 1 x AW21.6NDC/4 21″ double vented
Connectors 3 x Speakon NL4 input / link (rear)
cardioid (front)
Physical dimensions mm
Height 560
Width 747
Depth 986
Weight (approx.) BQ211 82kg
Weight (approx.) BQ211i 72kg
Warranty 6 years limited