Cranborne Audio Camden EC2 - Two Channel Preamp, signal Preocessor and Dual Headphone Mixer

Cranborne Audio Camden EC2 - Two Channel Preamp, signal Preocessor and Dual Headphone Mixer

The Cranborne Audio EC2 is a dual-channel mic/line preamp and headphone amp based on the award-winning Camden 500 mic preamp and 500R8 8-slot 500 Series Rack.

With two “Camden” preamp housed in a 1U rack, the EC2 delivers the same sonic performance as the 500 Series module including its stunning low-noise and low-distortion as well as frequency and phase linearity at all gain settings.

Furthermore it boasts Cranborne’s Mojo analogue circuit which adds second or third order harmonic and low-end reinforcement to mimic vintage transformer or valve-based equipment. The EC2’s Mojo saturation can also be employed on your mixes or as insert via the line input.

In addition, two reference-quality headphones with discrete line mixers provide direct monitoring of both preamps helping you when setting up microphones or create a zero-latency analogue monitor mix, using external sources via its Aux inputs.

The EC2 is also equipped with Cranborne’s unique C.A.S.T system which lets you distribute audio around the studio or stage using affordable CAT5 cable to transport balanced audio to and from other enabled C.A.S.T audio devices.

Specifications

Preamp

• Test Signal Path: APx555 (Line Out) - Input 1 - Line Output - APx555 (Line In)
• Input Impedance - Mic: 8.9 kOhms 48v Off, 5.4 kOhms 48v ON,
• Line: 24.3 kOhms,
• Hi-Z: 1.5 MOhm Unbalanced, 3 MOhm Balanced

Max Input Level

• Mic: +17.6dBu (<0.003% THD),
• Line: +26.5dBu (<0.02% THD),
• Hi-Z: +24dBu (<0.02% THD)

Minimum Gain

• Mic: 8dB,
• Line: 0dB,
• Hi-Z: 3dB

Maximum Gain

• Mic = 68dB
• Line = 60dB
• Hi-Z = 63dB

Equivalent Input Noise (EIN)

• <-129.5dBu (150 Ohm source, unweighted),
• <-131dBu (150 Ohm source, A-weighted),
• <-135.5dBu (Inputs common, unweighted)

Frequency Response

• ±0.7dB (<1 Hz to >1000 kHz, Min Gain),
• ±0.7dB (<1 Hz to >1000 kHz, 35dB Gain),
• ±1dB (<1.5 Hz to 900 kHz, 63dB Gain),
• ±1dB (<5 Hz to >200 kHz, Max Gain)

Phase Shift

• <2.75° (20Hz to 20kHz, 40dB Gain),
• <4° (20Hz to 20kHz, 63dB Gain),
• <6° (20Hz to 20kHz, Max Gain)

THD+N

• <0.00025% (1kHz, 35dB Gain, +24dBu out)

Intermodulation Distortion

• <0.0006% (50Hz and 7kHz, 35dB gain, +20dBu out),
• <0.0005% (50Hz and 7kHz, 35dB gain, +15dBu out)

Hi-Pass Filter (HPF)

• 80Hz, -3dB
• 12dB/Oct

CMRR

• >70dB, typ >85dB, 35dB gain, 10-20kHz, 100mV Common mode

Slew Rate

• 20V/uS, 35dB gain, +25dBu out

48v LED Thresholds

• Off: 48v Off, voltage fully discharged
• Amber: 48v voltage charging/discharging
• Red: 48v fully charged

Signal LED Meter Thresholds

• Blue: -20dBu
• Green: -12dBu
• Amber: +21dBu
• Red: +24dBu

Max Output Level

• Balanced XLR: +27.5dBu (<0.002% THD, 30dB Gain)
• Impedance Balanced ¼” Jack: +21.5dBu (<0.002% THD, 30dB Gain)

Output Impedance

• Balanced XLR: 150 Ohm
• Impedance Balanced 1/4” Jack: 150Ohm Balanced, 75 Ohm Unbalanced

Link Max Output Level

• Impedance Balanced 1/4” Jack: +21.8dBu (<0.006% THD)

Link Output Impedance

• Impedance Balanced 1/4” Jack: 75 Ohm Unbalanced, 150 Ohm Balanced (Buffered Output)

Headphone Amplifier

Test Signal Path

• APx555 (Line Out) - AUX Input - Headphone Output - APx555 (Line In)

Frequency Response

• -1dB, <1Hz to >70kHz

THD

• <0.0006% (-104.4dB) @ +20dBu, 1kHz, A-weighted, 300 Ohm load

THD+N

• <0.00085% (-101.4dB) @ +20dBu, 1kHz, A-weighted, 300 Ohm load

Output Impedance

• 0.33 Ohms

Output Wattage

• 250mW x 2 @ 600 Ohms, 1kHz
• 650mW x 2 @ 220 Ohms, 1kHz
• 1.21W x 2 @ 100 Ohms, 1kHz
• 500mW x 2 @ 32 Ohms, 1kHz

Dynamic Range

• 114.5dB A-weighted, AES17 method, 20Hz - 20kHz, 300 Ohm load

Noise Floor

• -93.5dBu A-weighted, 20Hz - 20kHz, 300 Ohm load

Power

AC Requirements

• 100V – 240V AC, 50 – 60 Hz

Total Power Consumption

• 24v, 1.25A DC, 30W

Environmental

• Operating Temperature
• +1 to 35 degrees Celsius

Storage Conditions

• -20 to 50 degrees Celsius

Dims/Weights

Unit

• Width: 481mm (19") (Rackmount)
• Height: 44.45mm (1.75") (1u)
• Depth: 240mm (9.5")

Unit Weight

• 2.8kg (6.2lb)

Shipping Carton

• Width: 600mm (23.6")
• Height: 120mm (4.7")
• Depth: 350mm (13.8")

Carton Weight

• 4.1kg (9lb)