OMNITRONIC LH-045 1-channel microphone preamplifier

98.15 incl. GR VAT

Available on backorder

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1 microphone, XLR (bal.) or 6.3 mm jack (unbal.) Gain control, 10 steps (6-50 dB) Phantom power can be switched on Clip LED 1 line output, XLR (bal.) or 6.3 mm (unbal.) Operation via supplied power unit Power supply: 12 V DC, 150 mA Input impedance: 10 kohms bal./unbal. Max. input level: +4 dB bal./+10 […]

 

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  • 1 microphone, XLR (bal.) or 6.3 mm jack (unbal.)
  • Gain control, 10 steps (6-50 dB)
  • Phantom power can be switched on
  • Clip LED
  • 1 line output, XLR (bal.) or 6.3 mm (unbal.)
  • Operation via supplied power unit
Power supply: 12 V DC, 150 mA
Input impedance: 10 kohms bal./unbal.
Max. input level: +4 dB bal./+10 dB unbal.
Gain: 50 dB XLR/44 dB jack
T.H.D.: 0.01 %
Frequency range: 25 Hz – 16 kHz
S/N ratio: >75 dB
Dimensions: 143 x 93 x 45 mm
Weight: 350 g
Weight 0.35 kg

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OMNITRONIC LH-045 1-channel microphone preamplifier removeAVALON AD2022 DUAL MONO PURE CLASSA PREAMPLIFIER removePRESONUS TUBE PRE V2 microphone PREAMP removeSOUND DEVICES MM-1 Portable Mic Preamp with Headphone Monitor removeAUDAC AUCPR12 Two-zone 10-channel stereo Preamplifier removeGOLDEN AGE PRE73 MK2 + FC3 Microphone preamp and condenser microphone bundle remove
NameOMNITRONIC LH-045 1-channel microphone preamplifier removeAVALON AD2022 DUAL MONO PURE CLASSA PREAMPLIFIER removePRESONUS TUBE PRE V2 microphone PREAMP removeSOUND DEVICES MM-1 Portable Mic Preamp with Headphone Monitor removeAUDAC AUCPR12 Two-zone 10-channel stereo Preamplifier removeGOLDEN AGE PRE73 MK2 + FC3 Microphone preamp and condenser microphone bundle remove
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SKULH-045AD2022 APA2018-05950MM-1 SDAUCPR12PRE-73 MK2 FC-3
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Price 98.15 incl. GR VAT 3,528.46 incl. GR VAT 150.00 incl. GR VAT 695.00 incl. GR VAT 487.31 incl. GR VAT554.47 incl. GR VAT
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Description
Content
  • 1 microphone, XLR (bal.) or 6.3 mm jack (unbal.)
  • Gain control, 10 steps (6-50 dB)
  • Phantom power can be switched on
  • Clip LED
  • 1 line output, XLR (bal.) or 6.3 mm (unbal.)
  • Operation via supplied power unit
Power supply:12 V DC, 150 mA
Input impedance:10 kohms bal./unbal.
Max. input level:+4 dB bal./+10 dB unbal.
Gain:50 dB XLR/44 dB jack
T.H.D.:0.01 %
Frequency range:25 Hz - 16 kHz
S/N ratio:>75 dB
Dimensions:143 x 93 x 45 mm
Weight:350 g

The AD2022 is Avalon's fourth generation of fully discrete, symmetrical Pure
Class A microphone preamplifiers. The dual mono AD2022 includes the original
sonic capabilities and transparency of the M2, M22 and M5 preamplifiers plus
several additional features, including selectable microphone source loading for
optimized cable/mic matching, improved high-voltage Class A regulated power
supplies, two high Z instrument inputs, variable-passive high pass filter, teflon/
silver wiring and doubled plated circuit boards for superior low level signal transfer.
 
AD2022 FEATURES
Symmetrical Pure Class A design, two channels
Microphone and hi-Z instrument inputs
Gain switched 4dB steps plus +/- 3dB fine output trim 
Selectable microphone input impedance matching 
Low noise -126dB EIN
Ultra high quality, low-ratio, balanced input transformer
Balanced, high-current Class A output to +36dB
Large illuminated analog VU meters and twin peak LED's
Regulated phantom power supply +48v 
Input polarity phase reverse 
High headroom +36dB input before overload
Input -20dB pad for high level signals
Sealed silver relays for all signal routing
External AC 150w toroidal power chassis
Fully discrete Class A regulated audio power supplies
Deep, musical sound-stage, transparent amplification

MICROPHONE INPUT
The AD2022 incorporates the most advanced high-performance microphone
transformer available. Split low-ratio primary windings are carefully combined
within a custom mu-metal core for extended smooth frequency response and
very low distortion.  Sealer silver relays are used for minimal signal invasion. 
The input signal selector, high pass filter, polarity-phase reverse, +48v power
and the 20dB input attenuator all utilize local sealed relay operation. A variable
passive high pass filter provides a minimum phase shift design while eliminating
low frequency rumble, wind noise and mechanical vibration at sub sonic frequencies.

SYMMETRICAL PURE CLASS A DESIGN
Two 100% discrete, high-voltage, symmetrical Pure Class A signal amplifiers
are utilized per channel. The first operates in a cascaded-cascode FET
configuration while the second stage amplifier is fully bipolar. The twin amplifiers
share the total available gain requirement. This shared architecture increases
the high level headroom capability, improves transient response and doubles the
internal bandwidth of the ultra-high performance pure Class A signal amplifiers.
OUTPUT and METERING
High-current DC coupled, Class A discrete amplifiers are utilized for the output
drive interface with +36dB capability into all known loads.  Two large, high-quality
analog VU meters indicate accurate signal readings while bi-color LED's offers
peak indication at 0dB and +20dB.

AD2022 PREAMPLIFIER SPECIFICATIONS
 
Circuit Topology:  Twin cascode FET and bipolar low level signal amplifiers,
high-voltage, 100% discrete, symmetrical Pure Class A 
Input Type and Load:  Transformer balanced low-ratio, 50, 150, 600 and 1k5
ohm input load selection  
Maximum Mic Level:  +36dB balanced XLR pin 2 hot (with -20dB passive
attenuator) 
Maximum Instrument Level  +18dB at 100k ohms instrument input level,
standard mono 1/4 inch jack 
Input Attenuator:  -20dB resistive pre transformer primary, sealed silver relay 
Phantom Power:  +48v regulated 50mA capability, sealed silver relay 
High Pass Filter:  Passive, variable from 30Hz to 185Hz @ 6dB per octave,
sealed silver relay. 
Polarity Reverse:  Sealed silver relay on microphone input 
Gain Range Input:  +20dB to +64dB in 4dB steps 
Gain  Output Range:  +/- 3dB variable conductive plastic potentiometer 
Maximum Output Level:  +36dB balanced 600 ohms, DC coupled, discrete
symmetrical Pure Class A 
Output Type:  XLR connector, pin 2 hot 
Noise EIN Unweighted:  -126dB 150 ohm 
Noise 20kHz Unweighted:  -102dB 
Distortion THD, IMD:  0.05% nominal 
Frequency Response -3dB:  1Hz to 120kHz transformer limit 
System Bandwidth:  DC to 1MHz 
Output Meter:  High quality, illuminated analog VU meter 0dB = +4dB. 
Peak Meter:  Bi-color LED's 0dB and +20dB peak detection circuit. 
AC power supply B2T:  External toroidal 100V to 240V, 50-60Hz selectable,
150 watts maximum. 
Cables:  90V ac, 4 pin male power input connector, B2T required, internal
DC regulation  
Dimensions:  19 x 12 x 3.5 in (482 x 305 x 89mm) 
Weight:  15lbs (6.8kg) 
Dimensions - Shipping Carton:  24 x 21.5 x 7.5 in (610 x 546 x 190mm)  
Weight - Packed:  25lbs (11.4kg) 

At PreSonus, weʼve been designing preamps for a long time, and we always focus on audio quality first. So when we decided to upgrade our popular TubePre V2, we focused on improving an already high-quality sound—without jacking up the price. Like the originalTubePre, the new version is a fully professional tube preamp, with a dual-servo (no capacitors) gain stage that lets you boost the program signal to smoking hot levels without significantly increasing the background noise. Discrete components and high-voltage operation offer dynamic range and detail not found in other single-channel tube preamps in its class.

Housed in a rugged case, the TubePre V2 rear panel sports separate unbalanced, ¼” instrument and balanced, XLR mic inputs and unbalanced ¼” and balanced XLR line outputs. Weʼve included all of the extras you need for professional operation including a high-pass filter, phantom power for condenser mics, polarity reverse switch, and a backlit VU meter.

Highly versatile and portable, Sound Devices' MM-1 is a single-channel, portable microphone preamplifier with a powerful headphone monitoring function. Proven in mission-critical applications, the high-performance microphone preamplifier uses a transformer-balanced input and output with a bipolar ±15 volt power supply to produce low-noise, low-distortion gain at all switch positions. It features an "unclippable" dual-stage limiter and two-position high-pass filter. Flexible microphone powering provides phantom power at 48 volts or 12 volts and 12-volt T-power. It is powered from two-AA batteries or external 5-18 VDC. The MM-1 is at home in high-definition television production, corporate/industrial environments, radio/television announce booths, and music production. Its headphone monitor is an advantage in applications where communications channels or mix-minus feeds need to be monitored in headphones. The user can monitor both microphone audio and external audio sources in headphones with level control. The MM-1 is designed to be durable. Its aluminum chassis, oversized end panels, machined knobs, and panel mounted connectors assure reliable mechanical operation.
  • Maximum of 66 dB of gain, in eleven discrete steps
  • Dynamic range exceeding 120 dB
  • 10 Hz to 50 kHz audio bandwidth
  • High immunity to RF interference
  • High current line output driver
  • Transformer-balanced input and output
  • Extended range peak limiter via dual opto-isolators makes preamplifier virtually "unclippable“
  • Selectable 48-volt / 12-volt phantom power or 12-volt "T" power
  • High-pass filter @ 80 or 160 Hz, 6 dB per octave
  • Headphone monitoring of microphone audio, monitor audio, or a mix of both
  • Monitor input accepts mono, balanced or unbalanced line-level inputs on 1/4-inch tip-ring-sleeve connector
  • Separate level control of Monitor gain and overall headphone gain
  • Split ear function via DIP switches
  • Internal battery power (two-AA)
  • Excellent battery life with alkaline and NiMH rechargeable batteries
  • External 5-17 VDC powering (plug included)
  • High-strength aluminum chassis with durable belt clip

The CPR12 is an easy to use, flexible and multifunctional 10 channel pre-amplifier. Six of these input channels are selectable between Mic / Line level and equipped with a 3 band tone control. The first two can be switched to priority and phantom power. The other four channels are direct line inputs.

Every input channel has its own gain and fader volume control with PFL button which makes it possible to pre-listen each input or output channel with the built-in pre-listening speaker, and can be routed to one or both output channels. This makes the CPR12 a full two-zone system.

Other present features are a priority input, a recording output, separate sub-out channels and the 24 V DC emergency power connection. This last feature makes it possible to power the CPR12 with emergency power when the main power is shut down. In this case, the priority input will automatically mute all input signals, and a evacuation message will be announced. The steel 19" housing has a height of 2 HE.


  • 10 audio input sources
  • 6 Mic / Line inputs with 3 band EQ
  • 4 Direct Line Inputs
  • Fader volume control
  • Two output zones
  • Built-in pre-listening speaker
  • Priority input for emergency situations
  • + 15 V DC Phantom power
  • Works on 24 V DC emergency power
Specifications
  • Model Name / Type: CPR12 / 10 channel 2 zone pre-amplifier
  • THD+N:
  • Signal/Noise: > 90 dB
  • Frequency Response: 20 Hz - 20 kHz
  • Phantom Power: + 15 V DC
  • Emergency Power: + 24 V DC
  • Power Supply: 100 - 240 V AC / 50 - 60 Hz
  • Dimensions (W x H x D): 420 x 88 x 320 mm

The PRE-73 Mk2 pre-amp and the FC3 condenser microphone in one bundle. The bundle also includes Golden Age P1 Pop Filter, Proel RSM180 mic stand and Proel CHL250 5m cable.

Weight0.35 kg11.40 kg2.00 kg3.00 kg6.80 kg7.00 kg
DimensionsN/AN/AN/AN/AN/AN/A
Additional information
Weight 0.35 kg
Weight 11.40 kg
Weight 2.00 kg
Weight 3.00 kg
Weight 6.80 kg
Weight 7.00 kg