The Avalon AD2055 Dual Mono EQ. Powerful EQ that breathes life into all musical performances delivering clear open high frequencies and warm lows.
The Avalon AD2055 combines 100% discrete, pure class A signal amplifiers with state-of-the-art passive and active filter topologies. The AD2055's unique circuitry delivers very high resolution transient detail at the operational extremes of real world equalization demands. The AD2055 auto-bias DC servo loop control eliminates the need for all interstage capacitor coupling. The AD2055 breathes life into all musical performances.
The main features of the Avalon AD2055 include:
- 100% discrete, pure class A
- Passive and active filter design
- Transparent, minimal signal path
- Very low noise- 94dB
- Balanced DC inputs and outputs
- Hard wire relay bypass
- High headroom+30dB output
- Twin seven octave mid-sweep
- X10 frequency multipliers
- Wide bandwidth 1Hz to 500kHz
- Sealed silver relays
- Discrete class A power regulators
The main specifications of the Avalon AD2055 include:
- Circuit Topology: High-voltage 100% discrete, balanced and symmetrical Class A
- Output Gain Range: Unity Gain
- Maximum Input Level: +30dB balanced XLR pin 2 hot
- Maximum Output Level: +32dB balanced 600 ohms, DC coupled, high-current discrete Class A
- Input / Output Type: XLR type, pin 2 hot balanced
- Noise 20kHz Unweighted: -94dB (EQ in)
- Distortion THD, IMD: 0.5% (typical 0.05% at +6dB 1kHz)
- Frequency Response -3dB: 1Hz to 450kHz (input band limited)
- Equalizer Type: Passive high and low bands plus two fully parametric mid bands
- Bypass: Hard-wire relay bypass for equalizer in-out
- Low Band F1: Passive, amplitude to -32dB to +32dB shelf or peak-dip curve, F1 Frequency Range: Switched 10 position 18Hz, 25, 30, 50, 72, 100, 150, 215, 300, 450Hz, Mid Band F2: Active, amplitude to -16dB to +16dB peak-dip curve, F2 Frequency Range: Variable 35Hz to 450Hz (x10) 350Hz to 4k5Hz, Q (width) 0.3 to 3.0, Mid Band F3: Active, amplitude to -16dB to +16dB peak-dip curve, F3 Frequency Range: Variable 160Hz to 2k0Hz (x10) 1k6Hz to 20kHz, Q (width) 0.3 to 3.0, High Band F4: Passive, amplitude to -26dB to +26dB shelf or peak-dip curve, F4 Frequency Range: Switched 10 position 1k5Hz, 2k5, 3k5, 5k, 7k2, 10k, 12k5, 15k, 20k, 25kHz
- AC-DC Power: External AC supply, 150w toroidal transformer, 4 pin cable 90v isolated
- (B2T Power Supply Included): 100-240v selectable 50/60Hz, 150w max
- Dimensions: 19 x 3.5 x 12 in (482 x 88 x 305mm)
- Shipping weight: 30lbs (13.6 kg)
