4 TECHNICAL
23
EUREKA SPECIFICATIONS
Channels ................................................................................................ ONE
Dynamic Range ................................................................................. >115dB
Headroom.......................................................................................... +22dBu
Frequency Response .............................................................. 10Hz to 50kHz
Internal Operating Level............................................................... 0dBu = 0dB
Microphone /Instrument Preamplifier
Gain .................................................................................... + 12dB to +52dB
Noise Floor.................................................................. -112dBu (+12dB gain)
EIN ..................................................................................................... -127dB
THD + Noise(0% Saturation) ........................................................... <0.005%
THD + Noise (Full Saturation) .............................................................. <0.5%
Microphone Input Connector................................................................... XLR
Mic Input Impedance (selectable)..................2.5K, 1.5K, 600, 150, 50 Ohms
Instrument Input Connector...................................................................¼” TS
Instrument Input Impedance ......................................................... 1 Meg Ohm
Send Connector.............................................1/4” TRS Balanced/Unbalanced
Send Output Impedance................................................................... 51 Ohms
Return Connector ...........................................1/4”TRS Balanced/Unbalanced
Return Input Impedance................................................................. 10K Ohms
Metering (3-LED) .............................................................. -20dBu, 0dBu, Clip
Line input (switchable) ............................. ¼” TRS, 10k Ohm Input Impedance
Phantom Power (switchable) .................................... +48V (Pin 1, Pin 2 XLR)
Pad (switchable)............................................................................0dB/-20dB
Phase (switchable) ............................................................................. 0, 180º
Hi-pass Filter (switchable) .................................................-3dB shelf at 80Hz
Compressor
Threshold (variable) ........................................................... -40dBu to +20dBu
Ratio (variable)......................................................................1-10 (1:1 – 2:1)
Attack (variable) .........................................................................0.1 – 200ms
Release (variable) ......................................................................... 0.05 – 3 S
Output Attenuation/Gain.........................................................-20dB to +20dB
