Bayview Pro Audio - AD2022 w/ Free Gear

Avalon Design AD2022

The Avalon AD2022 is Avalon's fourth generation of fully discrete, symmetrical Pure Class A microphone preamplifiers. The dual mono Avalon Design 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.

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.

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)

CASCADE FAT HEAD- RIBBON

The Cascade FAT HEAD offers the natural and open sound associated with the finest ribbon microphones. You will find that when recording acoustic guitars, guitar cabinets, vocals, drum over-heads, and countless other types of instruments, the ribbon microphone will produce the warmth that is vital to today's digital recording environment. We firmly believe you will also agree that this microphone will make a great addition to your collection.

We inspect and check the audio quality of each and every Cascade microphone before it leaves our shop, once you try one...you'll be a believer.

Specifications

Type: large geometry (LRG) ribbon (velocity) Microphone
Ribbon type & Dimensions: Pure aluminum, 2.5 microns, 1 3/4" (L) X 3/16" (W)
Polar pattern: Figure 8
Sensitivity: -56 db +/- 2 dB (0 dB=1V/Pa)
Frequency response: 30 to 15 KHz (+/- 3dB)
Impedance: <=600 Ohms
Recommended load impedance: 3000 Ohms
Max.SPL (1% THD @1000 Hz): 148 dB
Equivalent noise level: to IEC 268-4 (A weighted) 18 dB
S/N ratio: re 1Pa: 70 dB
Connector: 3-Pin male XLR
Size: Diameter: 3” (O.D. grill), overall length 6 1/2”, 7/8" (O.D. body)

Includes

FAT HEAD Ribbon (LGR) Premium suspension shockmount
Zipper vinyl pouch w/ protective storage
Micro-fiber cleaning cloth

Warranty Full coverage for one year from date of purchase.

Cascade M37 Stereo Pair - small cardioid condenser 21mm

Cascade M37 is a cardiod condenser that has a 21mm diameter diaphragm. It is ideal for use as drum over heads, hi-hat, snare, or acoustic instruments such as guitar and piano. The M37 features a high SPL rate of 137dB for capturing even the loudest of sound sources. It is the choice compact microphone for instrumental use in professional studios around the world.

Includes

2 x Cascade M37 small cardioid condenser microphone
2 x Std. style microphone mounting clip
2 x Vinyl zipper pouch
2 x Foam Windscreen
Micro-fiber cleaning cloth

Shown with optional Shockmount
Omni capsule and shockmount option available at extra cost

Specifications

21mm diameter diaphragm
Power: P24V or P48V Phantom Power
Phasing: Positive pressure on diaphragm generates a positive voltage on pin #2 relative to pin #3
Generating Element: Externally Biased Condenser
Polar Pattern: Unidirectional (Cardioid)
Frequency Response: 30Hz-20kHz
Sensitivity: -56dB 0dB=1V/uBar@1kHz
Impedance: Low (Less than 200 Ohms)
Equivalent Noise Level: +14dB (A-weighted)
Weight: 126 Grams
Connector: 3 pin XLR

Warranty Full coverage for one year from date of purchase

CASCADE M20u 1.07" LDC cardioid condenser

The Cascade M20u offers a new body style & grill along with improved specifications and performance. The new 1.07" gold vapor-diaphragm makes the M20u a great studio microphone capable of excelling in many applications of recording tasks and environments.

The M20u is great for recording vocals, acoustic guitars, drums, guitar cabinets, horns and percussion instruments.

The M20u employs a -10dB pad and lo-cut filter switch. With it's smooth frequency response, transparency, and dynamic range, it's easy to see why the M20u is a valuable addition to a wide range of users.

Quote from Eben Grace
"The Cascade M20 is an amazingly well built and great sounding microphone. It gets used all the time in my studio and makes a great match with the Grace Model 101." - Eben Grace of Grace Design.

Avalon Design AD2022 w/ Free Gear