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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). |
Designed for high-definition field production environments, the studio-quality MP-1 is an ideal line-driver for critical radio, television, and film applications.
The MP-1 is extremely durable and easy to use. With rugged mechanical and electrical construction and high-quality components it will provide years of superb audio performance under the most punishing field conditions.
MP-1 Key Features - Superb audio specifications
- 66 dB of gain, in eleven discrete steps
- Transformer-balanced input and output
- Phantom power - 48 volt or 12 volt
- High pass filter @ 80 Hz or 160 Hz, 6 dB/octave
- Limiter makes unit virtually "unclippable“
- High current line output drive
- Excellent immunity to RF interference.
- Battery power (two x AA)
- Durable mechanical construction
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The PRE-73 Mk2 is the first one-channel low-cost preamp on the market that is using a fully discrete signal path with three separate transformers for the balanced mic input, the line input and the output.
The circuit is very similar to the classical preamp section of the Neve 1073 pre/eq module with a corresponding sound character that is warm, punchy, sweet and musical.
This classical sound has been heard on countless recordings through the years and it is a versatile sound that works very well on most sound sources and in most genres.
The PRE-73 Mk2 has a maximum gain of 80 dB on the mic input and the gain range on the Line input is -20 to + 10 dB. There is also a high-impedance instrument input.
The PRE-73 Mk2 is perfect for almost any signal source, no matter if it's a microphone with a high or low sensitivity (like a passive ribbon mic), a syntheziser or sound module or an electric guitar or bass.
The input impedance of the microphone input can be switched between 300 and 1200 ohms, which makes it possible to affect the tone of most microphones. There is also phase switch and an simple 4-step LED signal level meter.
The output level control makes it possible to make fine gain adjustments and also to overload the main gain stage for more character and then lower the signal to a suitable level before the output stage.
The Mk2 update consists of:
- An unbalanced insert jack (nominal level about 18 dBu) added on the back panel for inserting units like the coming GAP EQ-73, a three band eq.
- LED meter levels adjusted.
- 600 Ohm termination resistor and jumper added to power supply board (accessible from the inside of the unit).
- Revised Gain switch, turning the know clockwise now increase the gain.
- Reduced noise at high gains by a change to the power supply grounding scheme. |
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) | • Road proof housing
• High quality components
• Professional balanced XLR outputs
• Level control
The ASC-202 converts consumer level stereo RCA signals to balanced XLR professional line level, and back. One side of the unit, has two XLR inputs and stereo RCA outputs. The other side has stereo RCA inputs and two XLR outputs. Each side has stereo level controls. A possible application of the SC-13 is to use it as a level control in balanced audio lines.
The DAP Pro Audio Solutions are a complete line-up of audio tools for the professional musician or audio engineer. It is a series of audio modifying tools like mini-mixers, pre-amps and converters available in active or passive models. All audio solutions are designed to meet the highest stage and audio demands and feature a metal road proof housing with rubber feet and easy accessible controls. The units also have a small footprint which make them ideal to be used and placed in any environment where space is critical.
Specifications Frequency Response: 20Hz-20KHz
Inputs: XLR/Jack Combo, RCA
Outputs: XLR male, RCA
Input sensitivity RCA in: -10 dBv
Input Impedance RCA in: 10 kOhm
Input sensitivity XLR/Jack in: +4 dBu
Input Impedance XLR/Jack in: 20 kOhm
Output voltage RCA Out: -10 dBV
Output Impedance XLR Out: 100 Ohm
Output voltage XLR Out: +4 dBu
Output Impedance XLR Out: 200 Ohm
Power supply: 18V AC (adapter included)
Dimensions: 53 x 158 x 135 mm (HxWxD)
Weight: 0,65 Kg |
EWI PDI-100 PARA ACOUSTIC DI Box
This is a medium grade professional application Para Acoustic Active DI, which will work well on instruments with passive pickups or active pickups.
The construction is reasonably rugged and the components are well suited for the application yielding results that are typically acceptable for all but the most discerning artists.
The on-board tone and volume controls give the operator a lot of choices in shaping their sound prior to sending the signal to the mix console. This allows an artist to use this device in-place of or in addition to a traditional stage amp for their instrument. This is an excellent choice for IEM bands, or bands that like to keep their stage volume low.
This item is typically used to split the instrument signal going to a stage amp so a feed can be sent also to the mix board, or be used as a stand-alone instrument pre-amp. It is equipped with a ¼” jack for input, a 1/4" jack for output to a stage amp, one XLR jack for the send to the board and a TRS jack for inserting an FX device.Since this is an active D.I. box, it needs to be powered which can be done either with Phantom Power from the mix board, or with the supplied internal 9v battery. The battery is fairly easy to change by removing one screw in the bottom of the case.
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