AVALON M5 PURE CLASS A PREAMPLIFIER

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1,562.59 incl. GR VAT

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Avalon microphone preamplifiers have been in use around the world since 1986. All preamplifiers share the combined technologies of low ratio transformer balanced inputs coupled with high-voltage cascade FET twin bipolar discrete class A amplifiers. M5 FEATURESPure Class A, 100% discrete design Smooth musical detail and sonic excellence Minimum audio signal path High performance input transformer […]

 

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Avalon microphone preamplifiers have been in use around the world since 1986.
All preamplifiers share the combined technologies of low ratio transformer
balanced inputs coupled with high-voltage cascade FET twin bipolar discrete class
A amplifiers.
 
M5 FEATURES
Pure Class A, 100% discrete design
Smooth musical detail and sonic excellence
Minimum audio signal path
High performance input transformer
Microphone and Hi-Z  inputs to +36dB
Very low noise -126dB
High headroom +30dB
Gain switched in 2dB steps to +64dB
DC coupled Pure Class A output
Large illuminated professional VU meter
Twin LED peak signal indicators
Regulated +48v phantom power supply
Low distortion less than 0.5% THD and IMD
Variable passive high pass (bass cut) filter
All signal routing with sealed silver relays
 
SONIC EXCELLENCE
The Avalon M5 Pure Class A microphone preamplifier is the most musical, low noise
full function preamplifier available today. Designed to optimize absolute signal integrity
and musical performance, the M5 combines an advanced transformer input stage with
twin high performance Class A cascode FET and bipolar discrete amplifiers for sonic
excellence unequaled by lesser designs. The M5 is ideal for vocal and acoustic
instruments,  active DI input for the direct recording of bass, guitars and keyboards. 
Features include state-of-the-art, balanced 100% discrete, Pure Class A signal amplifiers,
practical user features and rugged hardware designed to deliver true high performance
audio for many years.
DESIGNED FOR ULTIMATE MUSIC RECORDING
Avalon preamplifiers have been in use since 1986.  They have found their way into the
world’s most famous lead vocalists recording sessions and studios and been featured
on thousands of the best selling (and sounding) albums and live performances.
MINIMUM SIGNAL PATH DESIGN
Avalon’s advanced true symmetry design offers high-voltage, large headroom, extended
bandwidth and very low noise. The use of 100% discrete, Pure Class A signal amplifiers
give the serious music professional unlimited sonic character and a natural harmonic
detail that enhances the program material and becomes one with the music itself.
VOCALISTS DREAM MACHINE
The M5 microphone preamplifier is the first choice when you are looking to capture a full
bodied, dynamic, musical performance from the intimate depths within the artist.  The M5
will make your recordings musical masterpieces!
 
M5 SPECIFICATIONS
 
Circuit Topology:  Twin cascode FET and bipolar low level input signal stages.
High-voltage, 100% discrete, symmetrical high-bias Pure Class A amplifiers. 
Input Type and Load:  Superior transformer, balanced low-ratio 1500 ohm input load. 
Maximum Mic Level:  +36dB balanced XLR pin 2 hot (with -20dB passive attenuator). 
Maximum Instrument Level  +30dB balanced 600 ohms, DC coupled, discrete Class A. 
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 2dB steps. 
Maximum Output Level:  +30dB unbalanced 600 ohms, DC coupled, discrete
symmetrical Pure Class A. 
Output Type:  XLR connector, pin 2 hot (optional balanced JT-1 transformer). 
Noise EIN Unweighted:  -126dB 150 ohm. 
Noise 20kHz Unweighted:  -100dB 
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. 
M5 Dimensions:  8.5 x 3.5 x 12 in (216 x 88 x 305mm) half rack width. 
Weight:  15lbs (6.8kg) 
Dimensions of Shipping Carton:  24 x 21.5 x 7.5 in (610 x 546 x 190mm) 
Weight-Packed:  25lbs (11.4kg) includes B2T power supply and cables. 
AC power supply B2T:  External toroidal 100V to 240V, 50-60Hz selectable,
150 watts maximum. 
Cables:  1 x 8ft 4 pin ac cable, 1 x 8ft standard IEC cable included. 
Dimensions:  5 x 7 x 3.25 in (127 x 177 x 83mm) 
Weight:  7lbs (3.2kg) 
Rack mount kit (1) RM-1:  Single M5 19 inch rack mount kit (holds one half rack unit). 
Rack mount kit (2) RM-2:  Dual M5 19 inch rack mount kit (holds two half rack units). 

Weight 11.40 kg

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Description
Content

Avalon microphone preamplifiers have been in use around the world since 1986.
All preamplifiers share the combined technologies of low ratio transformer
balanced inputs coupled with high-voltage cascade FET twin bipolar discrete class
A amplifiers.
 
M5 FEATURES
Pure Class A, 100% discrete design
Smooth musical detail and sonic excellence
Minimum audio signal path
High performance input transformer
Microphone and Hi-Z  inputs to +36dB
Very low noise -126dB
High headroom +30dB
Gain switched in 2dB steps to +64dB
DC coupled Pure Class A output
Large illuminated professional VU meter
Twin LED peak signal indicators
Regulated +48v phantom power supply
Low distortion less than 0.5% THD and IMD
Variable passive high pass (bass cut) filter
All signal routing with sealed silver relays
 
SONIC EXCELLENCE
The Avalon M5 Pure Class A microphone preamplifier is the most musical, low noise
full function preamplifier available today. Designed to optimize absolute signal integrity
and musical performance, the M5 combines an advanced transformer input stage with
twin high performance Class A cascode FET and bipolar discrete amplifiers for sonic
excellence unequaled by lesser designs. The M5 is ideal for vocal and acoustic
instruments,  active DI input for the direct recording of bass, guitars and keyboards. 
Features include state-of-the-art, balanced 100% discrete, Pure Class A signal amplifiers,
practical user features and rugged hardware designed to deliver true high performance
audio for many years.
DESIGNED FOR ULTIMATE MUSIC RECORDING
Avalon preamplifiers have been in use since 1986.  They have found their way into the
world's most famous lead vocalists recording sessions and studios and been featured
on thousands of the best selling (and sounding) albums and live performances.
MINIMUM SIGNAL PATH DESIGN
Avalon's advanced true symmetry design offers high-voltage, large headroom, extended
bandwidth and very low noise. The use of 100% discrete, Pure Class A signal amplifiers
give the serious music professional unlimited sonic character and a natural harmonic
detail that enhances the program material and becomes one with the music itself.
VOCALISTS DREAM MACHINE
The M5 microphone preamplifier is the first choice when you are looking to capture a full
bodied, dynamic, musical performance from the intimate depths within the artist.  The M5
will make your recordings musical masterpieces!
 
M5 SPECIFICATIONS
 
Circuit Topology:  Twin cascode FET and bipolar low level input signal stages.
High-voltage, 100% discrete, symmetrical high-bias Pure Class A amplifiers. 
Input Type and Load:  Superior transformer, balanced low-ratio 1500 ohm input load. 
Maximum Mic Level:  +36dB balanced XLR pin 2 hot (with -20dB passive attenuator). 
Maximum Instrument Level  +30dB balanced 600 ohms, DC coupled, discrete Class A. 
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 2dB steps. 
Maximum Output Level:  +30dB unbalanced 600 ohms, DC coupled, discrete
symmetrical Pure Class A. 
Output Type:  XLR connector, pin 2 hot (optional balanced JT-1 transformer). 
Noise EIN Unweighted:  -126dB 150 ohm. 
Noise 20kHz Unweighted:  -100dB 
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. 
M5 Dimensions:  8.5 x 3.5 x 12 in (216 x 88 x 305mm) half rack width. 
Weight:  15lbs (6.8kg) 
Dimensions of Shipping Carton:  24 x 21.5 x 7.5 in (610 x 546 x 190mm) 
Weight-Packed:  25lbs (11.4kg) includes B2T power supply and cables. 
AC power supply B2T:  External toroidal 100V to 240V, 50-60Hz selectable,
150 watts maximum. 
Cables:  1 x 8ft 4 pin ac cable, 1 x 8ft standard IEC cable included. 
Dimensions:  5 x 7 x 3.25 in (127 x 177 x 83mm) 
Weight:  7lbs (3.2kg) 
Rack mount kit (1) RM-1:  Single M5 19 inch rack mount kit (holds one half rack unit). 
Rack mount kit (2) RM-2:  Dual M5 19 inch rack mount kit (holds two half rack units). 

PreSonusʼ popular Class A XMAX preamps are widely lauded for their clarity and transparency. Our tube preamps are beloved for their warm, smooth sound. With the Blue Tube DP V2 dual-path mic/instrument preamp, you get both types of high-quality sound in one unit.

Now weʼve improved on the classic unit with the BlueTube DP V2. The solid-state path now feeds PreSonusʼ top-of-the-line Class A XMAX™ mic preamplifier with 80 dB of variable gain—an upgrade from the original BlueTube DPʼs solid-state stage.

You still get all the secondary features you expect in a professional-grade preamp: 48V phantom power, an 80 Hz high-pass filter, -20 dB pad to control hot input signals, and a polarity-reverse switch. Each channel has an illuminated VU meter so you can visually monitor your input levels.

A Tube Drive control provides a wide range of sounds: when itʼs clicked off, youʼre using the solid-state preamp for quiet, transparent amplification; when itʼs engaged, your signals flow through the tube preamp, and you can achieve anything from gentle warmth to edgy distortion.

    2 input channels, each with:
        High-headroom Class A XMAX™ mic preamplifier with 80 dB gain range
        12AX7 vacuum tube gain stage
        Tube Drive tube-saturation control
        48V phantom power
        80 Hz high-pass filter
        -20 dB pad to reduce hot input levels
        Polarity-reverse switch
        Illuminated analog VU input-level meter

    Input/Output
        2 balanced combo mic/unbalanced instrument inputs
        2 balanced XLR main (L/R) line outputs
        2 unbalanced ¼” main (L/R) line outputs

    Physical
        Compact 1/2U chassis
        External 12 VDC, 1A power supply

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 U5 high-voltage DI-preamp combines a unique passive tone selector with a variable
gain preamp and filter. The high input impedance accepts a wide variety of signal levels
and instruments from acoustic guitars to high-output active bass guitars and keyboards.
The U5 direct box is loaded with sonic character and user features professionals demand.

U5 FEATURES
Pure Class A, 100% discrete design
Smooth musical detail and sonic excellence
Variable gain preamp to +30dB.
Dual microphone and line outputs
Hi-Z   3,000,000 ohm input impedance
Very low noise -100dB
High headroom +30dB
Six tone bank selections.
DC coupled Class A output for superior bass
High cut switch eliminates noise
LED active signal indicator
Headphone monitor output jack
Low distortion less than 0.5% THD and IMD
High level 400 watt speaker input
Active to thru selector - ground isolation switch
100% discrete power supplies for audio path
Internal toroidal power supply for low noise
Long lasting, stainless steel hardware
 
SONIC EXCELLENCE
The Avalon U5 Pure Class A instrument DI & preamplifier is the most powerful direct box
available today.  Designed to optimize absolute signal integrity and musical performance,
the U5 includes many features and sonic excellence unequaled by lesser designs. The
U5 is ideal for bass guitar and acoustic instruments, electric guitars, keyboards, synthesizers
and low output pickups. 
Features include state-of-the-art, high input impedance input stage for zero load effect on
sensitive pickups and keyboards, 100% discrete, Pure Class A signal amplifiers, practical
user features and rugged hardware designed to deliver true high performance audio for many
years. 
DESIGNED FOR DEEP & CONTROLLED BASS
Avalon U5 DI-preamps have been in use around the world since 1995. They have found their way
into the world's leading musicians rigs and recording sessions and been featured on thousands
of the best selling (and sounding) albums and live performances.
MINIMUM SIGNAL PATH DESIGN
The U5 includes a variable gain Class A preamplifier to boost low level pickup signals and a high
level speaker input for capturing the live sound of the instruments amplifier. Six passive tone-EQ
curves are also included to enhance a variety of acoustic and electric instruments. A high-cut switch
eliminates unwanted acoustic pickup and high frequency noise, while a  headphone monitor amp
has been included for personal listening. Twin DC coupled Class A output amplifiers drive both low
level microphone preamp inputs and high level +4dB inputs for direct to tape recording or processing.
The active-to-thru switch selects either the instrument input directly or sends the boosted-equalized
signal to the amplifier via the front panel jack. A ground isolation switch eliminates any possible earth
loop or AC buzz problems with complete safety.

U5 SPECIFICATIONS
Circuit Topology:  100% discrete, high-voltage Class A 
Gain:  Switched 3dB steps, maximum gain +30dB 
Input Impedance:  3 ,000,000 ohm unbalanced (single ended) 
Maximum Input Level  +24dBu unbalanced, 400w speaker input 
Output Connectors (2):  XLR type, pin 2 hot electronic balanced 
Maximum Output Level (Class A):  +30dBu DC coupled, balanced 600 ohms (mic and line out) 
Headphone Output:  0.5w into 600 ohms 
Noise 20kHz Unweighted:  -100dBu minimum gain position 
Distortion THD, IMD:  0.1% at +10dB 
Frequency Response, -/+0.5dB:  5Hz to 100kHz 
Frequency Response, -3dB:  1Hz to 500kHz (input band limited) 
High Cut Filter:  -3dB at 8kHz minimum phase design 
Tone Selector:  Six position rotary switch, all passive filters 
AC Power:  Internal toroidal AC supply 
Dimensions:  8.5 x 3.5 x 12 in (216 x 88 x 305mm) 
Weight-Packed:  12lbs (5.4kg) 
Rack mount kit (1) RM-1:  Single U5 19 inch rack mount kit (holds one half rack unit) 
Rack mount kit (2) RM-2:  Dual U5 19 inch rack mount kit (holds two half rack units) 

 The OctaMic II provides 8-Channel 192 kHz / 24 bit AD conversion with eight hi-class microphone and line pre-amplification channels, featuring a combination of sophisticated components and approved RME technology.

Lowest distortion, excellent signal to noise ratio and perfectly linear frequency response transmit and amplify the microphone signals truly unchanged.

The OctaMic II includes some significant enhancements compared to the OctaMic:

The balanced TRS inputs of the Neutrik Combo XLR jacks are phantom power-free and can be operated as real line inputs too. The improved design of the input circuits allows for a maximum input level of +21 dBu with a convenient gain range from 6 dB up to 60 dB.
Improved signal to noise ratio (SNR) ADC 107.5 dB
Improved THD, especially at higher gains
Optimised heat dissipation by a new and larger housing with improved convection
Internal wide range power supply with line filter, insensitive to voltage fluctuations
Super-stable, short circuit proof 48 V phantom power


Features

OctaMic II offers 8 balanced XLR mic / line inputs via Neutrik XLR/TRS combo jacks. Each channel contains switches for 48V phantom power, a low cut filter and phase reversal. Amplification can be set between 6 and 60 dB. LEDs for signal, clip, and activated phantom power give a complete overview on the unit's status. When the special Clip Hold mode is activated, any detected clip-state will cause the corresponding LED to flash once per second. With this, the user gets a long-term peak detection, and no longer needs to constantly watch the LEDs. At the same time momentary overloads are still displayed correctly.

Frontside switches include power on/off and output level, for a choice of -10 dBV, +4 dBu or Hi Gain (+19 dBu) as reference level. This unusual feature offers two advantages. First, the reference level can be easily switched to match any of RME's current interface devices, from HDSP 9632 through Multiface up to the renowned ADI-8 series converters. Second, the Signal to Noise ratio is optimized, and the Clip-LED will exactly match the ones of the ADI-8 (2 dB below 0 dBFS).

The balanced line level output signal is available at the back of the unit via 8 stereo TRS jacks. The specially developed, internal hi-performance switch mode power supply lets the OctaMic II operate in the range of 100V to 240V AC. It is short-circuit-proof, has an integrated line-filter, is fully regulated against voltage fluctuations, and suppresses mains interference.

Top
AD-Conversion

The 8-Channel AD-conversion of the OctaMic II operates at up to 192 kHz. The digitized signal is available simultaneously at the double ADAT output (S/MUX, up to 96 kHz), and at a DB-25 connector (4 AES/EBU outputs, up to 192 kHz). The digital part can be clocked internally (master) and externally via word clock, AES/EBU and SPDIF.

RME's outstanding SteadyClock(TM) ensures perfect AD-conversion, as jitter on the external sync-sources is nearly completely removed. All settings are done via DIP-switches on the back of the OctaMic II. Analog outputs and both digital outputs operate fully simultaneously. The choice of reference level affects the analog outputs only, the signal/clip indication and the AD-conversion will react only to the Gain-pots.


Top
Tech Specs

8 balanced XLR/TRS mic/line inputs

54 dB gain range

Input impedance: XLR 2 kOhm, TRS 5 kOhm

Analog input level: from -40 dBu up to +21 dBu

Maximum output level: +21 dBu

Output impedance: 75 Ohm

Output level switchable Hi Gain / +4 dBu / -10 dBV

Signal to noise ratio (SNR): 129 dB EIN @ 150 Ohm

THD:
Large frequency range (200 kHz) with special EMI input filtering

Frequency response -0.5 dB: 5 Hz - 200 kHz

Hi-pass filter: 80 Hz, 18 dB/oct.

Line Out: 1/4" TRS (6.3 mm stereo jack), servo-balanced

Phantom power: +48 Volt switchable per channel

Internal wide range switching power supply 100-240 Volt AC

Unbeatable price/performance ratio!

AD conversion

SNR: >110 dB(A)

Supported sample rates: 28 kHz - 200 kHz

THD:
Sync Sources: AES/EBU (also SPDIF coaxial), wordclock, internal

SteadyClock(TM) ensures best sound quality even with jittery external clocks


Top
Accessories

Digital breakout cable Pro, AES/EBU, D-sub25 to 4x XLR-3 female + 4x XLR-3 male, 1m/3m/6m (ALVA Audio)
Digital D-sub cable, AES/EBU, D-sub25 male to D-Sub25 male, 1m/3m/6m (ALVA Audio)
Optical ADAT Toslink cable 1m/2m/3m/5m/10m (ALVA Audio)
Word Clock cable, 1 x BNC male to 1 x BNC male, 1m/5m/10m (ALVA Audio)

Top
Add-On

BOB-32    Universal Breakout Box with 2 x 8 XLR to 2 D-sub connectors (supports TASCAM and YAMAHA format), flip-frame case

Features
Superlative sound
Studio quality mic preamp
Total control - Input Gain, EQ contour, Output Gain,
Overload indicator
Multiple output connectors
XLR/jack combo input 
Switchable 48 V DC Phantom Power for condenser Mics
Compact, computer friendly package
Needs no external power supply
 
ARX is proud to introduce the e-pre - the ultimate microphone pre-amp for
hard disk recording, designed by audio professionals, not computer engineers.
The all-new e-pre is so much a part of your system that it fits right into a spare
5?" slot in your computer case! It's the perfect tool for all your day-to-day
recording requirements. No equipment racks to plug in, no masses of cabling to
connect - the e-pre is ready and waiting when you need it.
The e-pre is a studio quality microphone pre-amp using the same internal components
as high end mixing consoles, built into a compact, computer friendly package.
It has controls for:
Input Gain - fully variable from 10dB through to 60dB to suit all types of microphones,
plus switchable 48 V Phantom Power to enable condenser microphones to deliver
their best.
A Contour control for EQ sweetening, providing fast, easy access to a whole range
of useful EQ curves
Output level control - fully variable to match the e-pre's output to the input of the sound
card. From -10dB consumer cards through to +4dB for professional sound cards, the
e-pre can handle it.
Multiple output connectors match up with any kind of sound card, including mini jacks,
standard jack, RCA (phono) plugs, and even a connector to link to the internal CD ROM
audio input of your sound card (if fitted).
We've even fitted a 12 VDC input connector on the rear to enable the e-pre to run from an
external power supply if required (eg for use with notebook computers or stand-alone use).

Any way you look at it, the e-pre by ARX is the total professional microphone pre-amp for
all your hard disk recording needs

e-pre Benefits
Professional Balanced XLR mic input
True 48v phantom power
Runs into the Line input of ANY sound card - uses the card you've already paid for
High headroom = clean recordings
Smart EQ
Compatible with non-computer audio equipment
Professional performance and specs in a user friendly package
 

T E C H N I C A L  S P E C I F I C A T I O N S
Input Impedance
Mic 2 K Ohms Balanced; XLR type Pin 1 Audio Ground, Pin 2 +, Pin 3-
Line 25 K Ohms Balanced, ?" TRS jack Tip +, Ring , Sleeve Audio Ground
Phantom Power Voltage Switchable +48 V DC on XLR Pins 2 and 3
Max Input Level Mic +15 dB, Line +20 dB
Input Gain 10 dB Minimum, variable to 60 dB Maximum
Output Level -10 dB variable through 0 dB to +4 dB
Overload Indicator Measured at all Gain points throughout the circuitry
Output Noise -90 dB Unweighted, -97 dB 'A' weighted
(Measured with Gain nominal 20 dB, Output level -10 dB)
Frequency Response 20 - 20 KHz ± 0.25 dB
Distortion
100 Hz 0.0085%
1 KHz 0.008%
10 KHz 0.0083%
(Measured with Mic Gain 20 dB, Output 0 dB)
Power Requirements 12 V DC from either computer supply or external supply
(external power supply not included in e-pre package)
Size 148mmW x 42mmH x 150mm D (5?“W x 1?H x 6“D)
Weight Under 1 Kilo (2.2 lbs)
 

Weight11.40 kg2.00 kg6.80 kg5.40 kg2.00 kg1.00 kg
DimensionsN/AN/AN/AN/AN/AN/A
Additional information
Weight 11.40 kg
Weight 2.00 kg
Weight 6.80 kg
Weight 5.40 kg
Weight 2.00 kg
Weight 1.00 kg