BLU Devices Technical Specifications

General Specs

Mains Voltage

100-240V AC, 50/60Hz

Power Consumption

<55VA

BTU Rating

<188 BTU/hr

Operating Temperature Range

5 to 35 °C (41 to 95 °F)

Dimensions (HxWxD)

1.75" (45mm) (1U) x 19" (483mm) x 12.5" (318mm)

Weight

9.1lbs / 4.1kg

 

 

Front Panel LED Indicators

Per Input

Signal Present, Clip, Sync/48V, I/O card type (IN, OUT, DIG, AEC, Telephone Hybrid)

Other

LCD Display, Conductor Active, Network Link Active, Data Activity

 

Analog Inputs

Up to 16 electronically balanced on Phoenix/Combicon removable screw connectors.

Mic/Line Inputs

Nominal gain 0dB, electronically switchable up to +48dB, in +6dB steps

Input Impedance

3.5kOhms

Maximum input level

+20dBu with 0dB input gain, +8dBu with 12dB gain

Frequency Response

20Hz to 20kHz +/-0.2dB, balanced, 150 Ohm

Dynamic Range

117dB, 20Hz to 20kHz, A-weighted: 114dB unweighted

CMRR

>75dB at 1KHz

Equivalent Input Noise (E.I.N.)

<-128dBu typical with 150 Ohm source

Phantom power

48V nominal, selectable per input

A/D Latency (Rev A)

41/Fs (0.85ms @ 48k, 0.43ms @ 96k)

A/D Latency (Rev B)

12/Fs (0.25ms @ 48k, 0.13ms @ 96k)

 

 

AEC Analog Inputs

Up to 16 electronically balanced on Phoenix/Combicon removable screw connectors.

Mic/Line Inputs

Nominal gain 0dB, electronically switchable up to +48dB, in +6dB steps

Input Impedance

3.5kOhms

Maximum input level

+20dBu with 0dB input gain, +8dBu with 12dB gain

Frequency Response

20Hz to 20kHz +/-0.2dB, balanced, 150 Ohm

Dynamic Range

117dB, 20Hz to 20kHz, A-weighted: 114dB unweighted

CMRR

>75dB at 1KHz

Equivalent Input Noise (E.I.N.)

<-128dBu typical with 150Ohm source

Phantom power

48V nominal, selectable per input

Pre-AEC Input Latency

38/Fs (0.79ms @ 48k, AEC operates at 48k only)

Post-AEC Input Latency (Original AEC)

2385/Fs (49.69ms @ 48k, AEC operates at 48k only)

Post-AEC Input Latency (Full Bandwidth AEC)

1584/Fs (33ms @ 48kHz AEC operates at 48k only)

Tail Length

200ms

Convergence Rate

49dB/s (Average convergence rate)

Digital Inputs

Up to 16 AES/EBU or S/PDIF on Phoenix/Combicon removable screw connectors.

Input Impedance

110 Ohms (AES/EBU), 75Ohms (SPDIF)

Sample Rate

48kHz or 96kHz (Fso)

Sample Rate Conversion

8kHz to 96kHz (Fsi)

THD + N

<-140dB

SCR Latency Off

3/Fs (0.06ms @ 48k, 0.03ms @ 96k)

SRC Latency On

59/Fs (1.23ms @ 48k, 0.61ms @ 96k) + 57/Fsi*

 

 

*Fsi: Sample rate of input device

Hybrid Analog Inputs

Up to 2 per card electronically balanced on Phoenix/Combicon removable screw connectors.

Mic/Line Inputs

Nominal gain 0dB, electronically switchable up to +48dB, in +6dB steps

Input Impedance

3.5kOhm

Maximum input level

+20dBu with 0dB input gain, +8dBu with 12dB gain, balanced, 150 Ohm

CMRR

>75dB at 100Hz, >66dB at 1kHz

Equivalent Input Noise (E.I.N.)

<-128dBu typical with 150 Ohm source, 20kHz, +48dB gain

Phantom power

48V nominal, selectable per input

A/D Latency

12/Fs (0.25ms @ 48k)

THD+N

<0.005% typical (20Hz to 20kHz @ +10dBu), balanced, 150 ohm

Frequency Response

20Hz to 20kHz +/-0.2dB, balanced, 150 ohm

Dynamic Range

117dB, 20Hz to 20kHz, A-weighted: 114dB unweighted

TELEPHONE INTERFACE

 

Ringer Equivalency Number

0.2 Maximum

Dynamic Range

67dB

Frequency Response

300 to 3.3kHz

THD

<0.3%

Transhybrid Loss

>48dB with LEC enabled

LEC Tail Time

64ms

TX Level

-10dBm RMS average

RX Level

+3.2dBm RMS

Analog Outputs

Up to 16 electronically balanced on Phoenix/Combicon removable screw connectors

Maximum Output Level

+19dBu

Frequency Response

20Hz-20KHz (+0.5dB/-1dB)

THD

<0.01% (20Hz to 20KHz, +10dBu output)

Dynamic Range

108dB typical, (22Hz-22kHz unweighted)

Crosstalk

<-75dB

D/A Latency

28/Fs (0.58ms @ 48k, 0.29ms @ 96k)

Output Impedance

40 ohms balanced and 20 ohms unbalanced

 

Digital Outputs

Up to 16 AES/EBU or S/PDIF on Phoenix/Combicon removable screw connectors.

Input Impedance

110 Ohms (AES/EBU), 75 Ohms (SPDIF)

Sample Rate

48kHz or 96kHz (Fsi)

Sample Rate Conversion

8kHz to 96kHz (Fso)

THD + N

<-140dB

Latency SRC Off

6/Fs (0.13ms @ 48k, 0.06ms @ 96k)

Latency SRC On

60/Fs (1.25ms @ 48k, 0.63ms @ 96k) + 56/Fso*

 

*Fso: Selected sample rate of digital output card

Control Ports

12 inputs and 6 outputs

Control Input Voltage

0 to 4.5v

Control Input Impedance

4.7kOhms to +5V (2-wire mode), >1MOhm (3-wire mode)

Logic Output Voltage

0 or +5V unloaded

Logic Output Impedance

440 Ohms

Logic Output Current

10mA source, 60mA sink

 

Watchdog Output

Phoenix/Combicon connector for failsafe control

Opto Output Current

14mA maximum

Withstanding Voltage

80V maximum (Off)

Series Impedance

220 Ohms (Isolated)

 

BSS Audio incorporates high quality mechanical fans in some products. All mechanical fans have a limited life expectancy. We recommend annual inspection of fans for dust occlusion and excessive noise. Fan assemblies should be replaced after six to ten years of use. Environmental factors such as elevated temperature, dust, and smoke can adversely affect fan life. Systems exposed to these conditions should be inspected more frequently. Fan replacement can be performed either at the factory or by an experienced technician in the field. Please contact BSS Technical Support for more information on purchasing replacement parts or product service. BSS Audio has a policy of continued product improvement and accordingly reserves the right to change features and specifications without prior notice.