Behringer RX1602 V2 16-channel monitor line mixer

• Extremely flexible multi-purpose sub-mixer, multi-track monitoring mixer and level translator

• 16 balanced high-headroom line inputs for individual stereo or mono use of each section

• Ultra-low noise ULN design, highest possible headroom, ultra-transparent audio

• Dedicated balance and level controls plus +4/-10 level selection per channel

• Monitor/FX Send control per section with global master send control for flexible monitoring, recording or effects applications

• Illuminated double-function "mute" button per section with additional "clip" indication provides comfortable input source/level information

• Monitor/FX signal assignable to phones output for added flexibility

• Highly accurate 2 x 7-segment LED level meters and individual level control for left and right main mix signal

• 1/4'' TRS main mix outputs plus easily accessible headphones output on the front panel with dedicated level control

• High-quality detented rotary controls for long-term reliability

• Internal switch-mode power supply (100 - 240 V~) for noise-free audio and low power consumption

• 3-Year Warranty Program*

• Designed and engineered in Germany

Manual

AXEL Compact telephone hybrid. Management of 1 wired PSTN / POTS line, electronically balanced input and output on XLR connector

Product Discription:

BoxTel MKII is an analogue telephone hybrid, designed to interface a telephone line with audio equipments. BoxTel MKII manages 1
POTS/PSTN line, whereas BoxTel GSM manages 1 GSM line to establish telephone connections where wired lines are not present.

A powerful internal microcontroller completely manages both BoxTel MKII and BoxTel GSM, allowing the configuration of the operating modes
via software. The internal microcontroller provides further functions such as adjustment of the line impedance according to the region,
visualization of the Send/Receive audio levels on the front leds, line detecting presence of a telephone line, buzzer with adjustable level,
AutoHook - automatic line hooking and answering after a certain number of rings. While BoxTel MKII is operative, its possible to exclude or
keep connected in parallel an external telephone set (Tel.Set).

The backlit Hook/Ring button on the front panel allows a quick management of the phone calls; each time a telephone call is incoming the
BoxTels Hook/Ring button starts to flash, by pressing it the operator answer the phone call. BoxTel MKII has the Line Detecting function,
which makes the Hook/Ring button switch on in presence of a telephone line.

BoxTel MKII and BoxTel GSM are devices equipped with an internal power supply enabling great audio performance: two separate
Send/Receive front potentiometers manage the audio level, with a total range of +/- 15dB. The input sensitivity is set at 0dBu while the
maximum output level is greater than +20 dBu.

The audio connections are separated for Send/Receive and are available over XLR electronically balanced connectors. A RJ11C connector
allows the telephone line connection (Tel.Line) and one more RJ11C connector performs the connection to an external telephone set (Tel.Set).
A GPIO port with optocouplers and open collector is provided to establish remote connections between BoxTel MKII and BoxTel GSM and
mixing console. It is possible to connect directly the Telco module of an Oxygen4, Oxygen5 and Oxygen7 console with BoxTel MKII/BoxTel GSM
by using a simlpe Pin-to-Pin cable. Internal universal power supply 90-264Vac/47-63Hz to operate worldwide.

Thanks to all of their features, BoxTel MKII and BoxTel GSM represent the telephone hybrids with the best quality/price ratio available on the
marketplace. BoxTel MKII and BoxTel GSM occupy ½ rack unit - LxHxD 22x5x13cm.

HIGHLIGHTS:

• Compact telephone hybrid
• 1 POTS/PSTN or GSM DualBand telephone line
• Send/Receive audio levels control and visualization
• Backlit Hook/Ring button
• Software configuration
• Phone call auto-answer feature
• International selection of the line impedance
• Remote control
• Potentiometer levels and front panel control
• Analogue Send/Receive balanced over XLR
• 1 USB port
• GPIO to remotely control Telco N-1 modules
   

• Dimension LxHxD 22x5x13cm
• AC Rate 230Vac / 110Vac 50 Hz / 60 Hz 30VA
• Type of power supply Switching power supply, worldwide
• Weight ≈ 2500 gr
• Operating Temperature -5°C / +50°C
  
  ANALOG INPUT MODULE (send)
• Connectors: XLR, female - Electronically balanced
• Operative Nominal Level: 0 dBu
• Line Impedance 10 kΩ (Electronically balanced selectable) EMIsuppressed
• Distortion: less than 0.01% TDH+NOISE (0.0dBu 1Khz)
• Input Modes: Mono
  
  ANALOG OUTPUT MODULE
  (receive)
• Connectors XLR, male - Electronically balanced
• Output Level 0dBu +4dBu +6dBu Max +20dBu
• Load Impendance 600 Ω
• Distorsion Less than 0.01% TDH+NOISE (0.0dBu @ 1Khz)
• Output Modes: Mono
  
  TELEPHONE MODULE PSTN / POTS
• Connectors LINE RJ 11C 6/4 socket
• Connectors SET RJ 11C 6/4 socket
• Bandwidth telephone line 100Hz 5kHz, -3dB @ 1 kHz
• Telephone line compliance ETSI TBR21, FCC Part68
• Isolation 3 kV
  
  REMOTE INTERFACE
• Digital Inputs GP In 2x GP In opto coupled. Only 1 is used as Hook
• Digital Outputs GP Out 2x GP Out Open Collector opto isolated. Only GPOut 1 is used as Ring
  
  Technical Specification about BoxTel MKII GSM (Additional )
• TELEPHONE MODULE GSM Module
• Standard DualBand GSM 900/1800 Mhz Phase 2+
• Frequency GSM 900: (Tx) 890 915 Mhz / (Rx) 935 960 Mhz
• GSM 1800: (Tx) 1710 1785 Mhz / (Rx) 1805 1880 Mhz
• Sensitivity -104 dB
• Channel bandwidth 200 kHz
• Maximum consumption 0.25 W / 0.5W
• Stand-by consumption
• Sensitivity -104 dB
• Dial tone frequency 450 Mhz Standard
• Environment noise
• Transmitting Power
• External Antenna 2.5 dBi omnidirectional with 1mt standard cable
• External power supply unit Input: 100-240 Vac Output: 12 V 500 mA
• External Antenna connector SMA
• Total rechargeable battery time 6 h
• PSTN / POTS connector RJ 11C 6/4 socket
• Operating temperature 0°C ≈ +45°C
• EN COMPLIANCY for GSM Modul EN 60950-1
• EN 301 489-1/-7
• EN 301 511

The Avalon VT-737SP features a combination of TUBE preamplifiers,
opto-compressor,sweep equalizer, output level and VU metering in a
2U space.
PREAMPLIFIER
The VT-737SP has three input selections: 1. The VT-737SP features a
higher-performance microphone input transformer with +48v phantom
selection. 2. Instrument DI high source input with jack located on front
panel. 3. Balanced line input, discrete high-level Class A. The Class A
preamplifier utilizes two cascaded, dual vacuum tube triodes configured
with minimum negative feedback. A high gain switch boosts the overall
gain of the preamplifier. The four high quality tubes are configured as
singled ended anode coupled followers. A passive-variable high pass filter
and hard-wire relay bypass completes the input signal conditioning. The
phase reverse relay is available on all three inputs.
OPTO-COMPRESSOR
The opto-compressor features a minimum signal path design with twin Class
A vacuum tube triodes for gain matching. The optical attenuator acts as a
simple passive level controller. Full dynamic control from soft compression to
hard- knee limiting can be achieved with threshold, ratio-compression, attack
and release controls plus gain reduction selection on the large VU meter. Special
spectral control including de-ess is available with the dual sweep mid EQ to side-
chain switch. The EQ section can be flipped pre or post the opto-compressor
via a front panel switch for alternate effects and tone shaping. Two VT-737SPs
can be linked via a rear panel link cable for stereo tracking. The compressor
bypass is a sealed silver relay for the most direct signal path.
SWEEP-EQUALIZER AND OUTPUT LEVEL
The VT-737SP equalizer utilizes 100% discrete, Class A-high-voltage transistors
for optimum sonic performance. The high and low frequency bands provide the
smooth characteristics of an all passive design, while the dual mid bands include
variable frequency and switched Q-width selection. The enhanced range of the mid
bands is extended into the high and low bands by the use of X10 frequency multipliers.
The bypass switch incorporates a sealed silver relay for the most direct signal path.
When the EQ to sidechain is engaged, the high-low EQ remains in the audio path for
"tone enhancement“. The output level control provides a variable control of the overall
signal path. The output amplifier utilizes another dual triode vacuum tube driving a
100% discrete, Class A, high-current, balanced and DC coupled low noise output
amplifier.

AVALON VT-737SP FEATURES
Vacuum tube triode signal path, transformer balanced microphone input, high-voltage
circuits for maximum headroom to +30dB, low noise -92dB, internal discrete power
supply with toroidal transformer, soft-start tube life extender, stereo link for compressors,
all discrete Class A equalizer with musical passive filter design, sealed silver relays for
signal routing, large control knobs with professional conductive plastic potentiometers,
VU meter for output level monitoring and compressor gain reduction.

VT-737SP SPECIFICATIONS
Circuit topology Four dual triode vacuum tubes (Sovtek 6922), high-voltage discrete
Class A
Gain Range Microphone: Transformer balanced 850/2500 ohm, 0dB to +58dB Instrument:
Unbalanced 1 meg ohm, 0dB to+30dB Line: Balanced Class A 20k ohms, -27dB to 28dB
Maximum input level and connector types Microphone26dB@25Hz, +30dB@1kHz balanced
XLR Instrument+30dB unbalanced front panel jack socket
Line +36dB balanced XLR
Maximum output level +30dB balanced 600 ohms, DC coupled, discrete Class A
Output type and gain XLR connector, output trim gain -45dB to20dB
Noise 20kHz unweighted -92dB
Noise microphone EIN -116dB, 22Hz to 22kHz unweighted
Distortion THD, IMD 0.5%
Frequency response -/2.5dB 10Hz to 120kHz input filter included
Frequency response -3dB 1Hz to 200kHz line in-out
VU meter and gain reduction High quality illuminated OVU =+4dB and gain reduction to -20dB
High cut filter Variable 6dB per octave 30Hz to 140Hz
Compressor type Optical passive attenuator incorporating twin vacuum tubes and stereo link
Threshold - Ratio Threshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1
Attack - Release Attack variable 2mS to 200mS, release variable 100mS to 5 seconds
Equalizer type Discrete Class A, variable active and switched passive design
Frequency bands (4) Treble - switched 10kHz, 15kHz, 20kHz, 32kHz, +/- 20dB range, shelf
High mid - variable 200Hz to 2k8Hz and 2kHz to 28kHz, +/- 16dB range, hi-lo Q Low mid -
variable 30Hz to 450Hz and 300Hz to 4k5Hz, +/- 16dB range, hi-lo Q Bass - switched 15Hz,
30Hz, 60Hz, 150Hz, +/- 24dB range, shelf
AC power Internal toroidal 100v to 240v, 50-60Hz selectable, 75 watts maximum
Dimensions 19 x 12 x 3.5 in (482 x 305 x 89mm)
Weight 22lbs (10kg)
Dimensions-shipping carton 21 x 18 x 8 in (533 x 457 x 203mm)
Weight-packed 26lbs (11.8kg)

Product Features:

Ultra-high resolution 24-bit/96 kHz mastering processor featuring 32/40-bit floating-point DSP technology
Audiophile 24-bit/96 kHz A/D- and D/A converters offering 113 dB dynamic range
4 concurrently selectable EQ modules (31-band graphic EQ, 10-band parametric EQ, Feedback Destroyer plus 3 Dynamic EQs per stereo channel)
Ultra-high resolution 61-band real-time FFT analyzer with additional auto EQ function for room and loudspeaker equalization
Unique VPQ (Virtual Paragraphic EQ) option allows parametric control of graphic EQs
State-of-the-art compressor/expander with peak limiter per stereo channel, additional stereo imager and stereo delay for delay line applications
Multi-functional level meters (peak/RMS, VU and SPL meter with dBA/dBC weighting via RTA/Mic input)
64 user memories for complete setups and/or individual module configurations
Separate mic/line input with phantom power for RTA and Auto-EQ applications
Balanced inputs and servo-balanced outputs with gold-plated XLR connectors, stereo aux output, AES/EBU and S/PDIF inputs and outputs (XLR and optical)
Professional Wordclock input and MIDI connections for full remote control, preset dumps and system updates
Open architecture allowing future software updates via MIDI
"Planet Earth" switching power supply for maximum flexibility (100 - 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving
High-quality components and exceptionally rugged construction ensure long life
Conceived and designed by BEHRINGER Germany