Avalon Design V55 Dual DI-RE-Mic Preamplifier

Avalon V55 - Avalon DI preamplifiers have been used worldwide since 1985. They have found their way into the recording sessions of top musicians around the globe and have been featured on thousands of albums, downloads, and live performances. The V55 includes the best features of the Avalon U5 DI with two studio-quality preamplifiers and a “new sonic plus.” Two alternative solid-state topologies are cascaded to provide a rich harmonic content and low noise that is not offered by other Avalon preamplifiers. This feature empowers the V55 with a new scale of sonic character.

Features:

• Dual Mono, Pure Class A, 100% discrete design
• Musical detail and excellent sound quality
• Minimum audio signal path with an extended range of 10 position TONE-BANK™
• High-quality transformer input and isolated output
• Microphone and Hi-Z inputs at +36 dB
• Very low noise -100dB
• High gain at +30 dB
• 2 dB switched preamplifier, with high gain at +66 dB
• Pure Class A output coupled in direct current
• Professional illuminated VU meter
• Dual LED peak signal indicators
• Phantom power supply regulated +48v
• Low distortion less than 0.5% THD and IMD
• Variable high-pass filter (low cut)
• Signal routing with sealed silver relays

Technical Specifications:

• Audio circuit topology: 100% discrete, high voltage, Class A, with two channels
• Gain: 2 dB switched steps, -/+ 0.2 dB
• Input modes (4): Line, Instrument-DI, High-Z & low-Z Microphone
• LINE (transformer): balanced 9,000 Ω, XLR~TRS, gain -2dB~+38dB, max. input 47dB
• INSTRUMENT ~ DI: unbalanced 10,000,000 Ω, TRS, gain +2dB~+42dB, max. input 36dB
• MICROPHONE HiZ (transformer): balanced 6,600 Ω, XLR, gain +20dB ~ +60dB, max. input 23dB
• MICROPHONE LoZ (transformer): balanced 1,800 Ω, XLR, gain +26dB ~ +66dB, max. input 19dB
• PAD (passive input attenuator): line -13dB, instrument -10dB & microphone -15dB
• Phantom power: 48V regulated at 10mA, blue=on, red=on
• Output through: unbalanced TRS, with buffer impedance
• Maximum line output level: +30dB, DC coupled, balanced 600 Ω, XLR~TRS
• Maximum isolated output level: +12dB isolated transformer, unbalanced
• Output power: 0.5W, 600 Ω, TRS
• Noise 20kHz, unweighted: -98dBu typical, minimum gain
• Noise (EIN) 22Hz-22kHz: -128dB @ 40dB gain (low output microphone Z)
• THD, IMD distortion: 0.05% at +10dB, 0.5% at +30dBu
• Frequency response, -/+0.5 dB: 5 Hz to 20 kHz
• Frequency response, -3dB: 2Hz to 500kHz (limited internal bandwidth)
• VU Meter: VU with professional moving coil, wide range -33dB ~ +18dB
• Signal LEDs: peak capture LED, blue=0dB, red=20dB
• High Cut filter: -3dB at minimum phase of 3.7 kHz
• Reverse polarity (phase): All outputs (switched relay)
• Tone shape: ten “passive” filter tone selections
• AC power: internal toroidal AC power supply, dual voltage, 115~230v selectable 50/60Hz, 35w max per channel
• Dimensions: 19 x 3.5 x 12 inches (483 x 88 x 305 mm)
• Packed weight: 10.9 kg