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Ave Audio (Stuttgart) – Ascolto FF1670



The digital steering column Ascolto FF1670 is particularly suitable to ensure an extended coverage in large environments, such as churches with long aisles, cathedrals, basilicas and in general where it needs simultaneously a very incisive beam and a bright tone.

FF1670 performs 8-channel DSP beam filtering to steer the vertical radiation pattern, matching the desired listening pattern, making column high directive and featuring main propagation lobe less dependent on the frequency.

FF1670 is equipped with 16 high quality, waterproof, coaxial loudspeakers, each one mounting 4” neodymium woofer + 1’’ dome tweeter, capable to transmit perfectly voice as well as music.

FF1670 uses 16 x 70 Wrms class-D audio amplifiers with excellent THD+N and high efficiency (90%). They are completely pop free and protected against short-circuit and thermal over-load.

FF1670 mounts high-reliable, switching power supply with universal input (90 – 264 VAC) to ensure the necessary “power” demand (720 W continuous / 860 W peak) to the amplifier units.

Beside the primary analog line input, FF1670 has an auxiliary audio input at 100 V level or a built-in Dante input (choose respectively FF1670 – 100 V or FF1670 – Dante version). Thus, it can be integrated and connected into an existing speaker line or into a Dante network.

FF1670 setup comes easy throughout the AVE Line Array User Control PC software, via RS485 connection.

AVE Line Array User Control includes:
• Beam forming control (tilting/broadening of vertical pattern);
• Anti-Reverberation System ARS to increase the voice intelligibility in reverberant environments.
• Air attenuation compensation;
• Volume control;
• Solo control;
• Delay control;
• 8-biquads user equalizer with high/low shelving and parametric filters;
• Music adaptive equalizer with a smart and robust speech/music detector.

FF1670 cabinet is aluminum extrusion and powder coated with desired RAL color.

All digital steering column loudspeakers Ascolto are designed and manufactured in Germany.


Data sheet:



Acoustic Specifications


Frequency Bandwidth 80 Hz – 20 kHz (±2 dB)
max. SPL (Nominal/Peak) 105 dB/109 dB (A-Weighted at 10 m)
102 dB/105 dB (A-Weighted at 20 m)
100 dB/103 dB (A-Weighted at 30 m)
Coverage horizontal (fixed) 110°
Coverage vertical (adjustable) Tilting Angle: –60° to 60°
Opening Angle: 10° to 40°
Typical Throw 30 m
Maximum Throw 35 m
Dynamic Range 102 dB
Transducers 16 x 4,0“ woofer + 1,0”dome tweeter neodymium
Sensitivity 1W/1 m 91.5 dB

Electrical Specifications


Audio Input 1 Line
Input Level Nominal 0 dBu (2.19 Vpp)
Input Level Maximum 10 dBu (6.92 Vpp)
Type Balanced
Impedance 20 kOHm at 1 kHz
Audio Input 2 100 V
Input Level Nominal 39.2 dBu (200 Vpp)
Type Balanced with Transformer
Impedance 20 kOhm at 1 kHz
Audio Input 3 Dante Audio Networkiing
Network Dante Audio over IP
Transport Layer Ethernet
Dante Latency 1, 2 or 5 ms (configurable using Dante Controller)
Sampling rates 48 kHz
Bit Depths 24

Power Amplifier


Type PWM (Class D)
Output power 16 x 70 W rms
Power Efficiency 92%
THD+N 0.025% at 10 Wrms/channel, 1 kHz
Input signal Balanced
Channel protections Thermal Shutdown (Tjunction< >150°C)
Output Short Circuit

DSP Module


DSP Processor 48 bit Fixed Point DSP
76 bit internal AccumulatorP
145 Mhz
Sample Rate 48 kHz
A/D Conversion Resolution: 24 bit linear PCM

Conversion: 1 bit delta-sigma 512x

Sample: 48 kHz

SNR: 102 dB (A-Weighted)

D/A Conversion Resolution: 24 bit linear PCM

Conversion: upsampling 128x

Sample rate: 48 kHz

SNR: 105 dB (A-Weighted)

Signal Processing Beam Forming Filtering
Input Equalization (10 Biquad)
Volume: (-120 dBFS to 0 dBFS)
Delay (0 m to 30 m, Step 0.1 m)
Dynamic Compressor 2-Bands
Input Signal Activity Detector

Control Module


Processor 32 bit ARM-Cortex M3


50 MHz

Setup Network Interface RS485, Half Duplex, 115200 baud/s
120 Ω Parallel Termination (recommended for long distance)
This network interface is used by AVE Line Array User Contol software
to manage beam setup and other audio features.
Dante Network Interface Ethernet, 100 Mbit/s (available only in Ascolto – Dante Series).
Processor Activities DSP Firmware Booting
DSP Status Monitoring
PWM Power Amplifier Functions Controlling
PWM Power Amplifier Status Monitoring
Audio Input Channel Functions Controlling
Dante-Chip Ultimo XXT Control (in Ascolto – Dante Series)
Auto Stand-By Controlling
RS485 Communication
Infrared Communication
Panel LEDs Controlling
Firmware Updating



Audio Inputs Connector 3-pole, 3.81 mm-pitch
Audio Inputs Pinout7 pin 1: hot signal (+)
pin 2: cold signal (-)
pin 3: earth (chassis ground)
RS485 Network Connector 3-pole, 3.81 mm-pitch
RS485 Network Pinout pin 1: data +
pin 2: data –
pin 3: digital ground
Dante Network Connector 8 pin Ethernet RJ45, female connector
Mains Connector Socket Wago cod. 770-103 with strain relief housing, 3-pole, 4,00 mm²,
ratings 250 VAC, 25 A, IEC/EN 60664-1, UL 1977



AC Range 90 VAC to 264 VAC (Universal Input)
Input Frequency Input 47 Hz to 67 Hz
Efficiency 91% typ at 230 VAC
Power Factor Correction Yes
Input Current at Full Load 8.0 A typ at 115 VAC
4.0 A typ at 230 VAC
Power Consumption Continuous: 720 VA
Peak: 936 VA
Idle: 24 VA
Stand-By: 8 VA
Protection Thermal Protection
Short Circuit Protection
Output Current Limiting
Under-Voltage Lock Out
Main Fuse 1 × 6.3 A (slow blow)
Electromagnetic compatibility EN 55022, class B, FCC part 15, level B
(EMC), Emissions IEC/EN 61000-3-2 class B

General Specifications


Height 2014 mm
Width 122 mm
Depth 120 mm
Weight 18.8 Kg (41.4 lbs)
Cabinet Powder Coated
Aluminum Extrusion
Colour RAL 9010
Special colour available for an additional charge
Temperature Range 0°C to 40°C (32°F to 102°F)
Protection class IP 54
Certificates CE