AFE AIR FILTERS

ELECTROVOICE EV DUAL 12" 2 EAY 600W PASSIVE BIAMP BLK

Class-H design Three-stage front-to-rear fans Complete protection package Classic EV amplifier dynamic headroom for real-world music and applications Built-in dynamic limiters Amplifier Gain 32 dB Continuous Rated Power - (1 kHz, THD 1%) 2 Ohms 1800 Watts Continuous Rated Power (1 kHz, THD 1%) 4 Ohms 1200 Watts Continuous Rated Power - (1 kHz, THD 1%) 8 Ohms 750 Watts Continuous Rated Power - (20-20 kHz, THD<0,2%) 4 Ohms 1100 Watts Continuous Rated Power (20-20 kHz, THD<0,2%) 8 ohms 550 Watts Electronics Type Amplifier Frequency Response 10 Hz - 40 kHz Input Impedance (Balanced) 20 kO Input Sensitivity +6.6 dBu Intermodulation Distortion (SMPTE) 0.1 % Mains Voltage 100 V, 120 V, 230 V or 240 V; 50-60 Hz (factory configured) Maximum Bridged Output 4 Ohms 3600 Watts Maximum Bridged Output 8 Ohms 2400 Watts Signal-to-Noise Ratio (A-weighted) 110 dB Slew Rate 30 V/ s Height 3.47 (88.1 mm) x Width 19.02 (483 mm) x Depth 16.59 (421.5 mm) Weight Net 39.02 lbs (17.7 kg)

First PRA on Windows 7 gamma spectroscopy run of TG-77 Cs-137 source using 1.125 square x3 Bicron probe, 800 V applied to 4.8 meg series resistor. 10:1 attenuated the 10 volt swing of the JFET OPAMP preamp to avoid sound input overdrive of my NetBook. No low pass filtering added for pulse stretching. Added an external monitor since Settings window will not work on small screen. Slower than my HP MCA, but not bad. Will try passive protection circuit without preamp later.

Now that the XR2206 VCOs are done, the rack is full. Technically, it's not 'done', since four panels need labels, and two need knobs (en route), but I'm reasonably happy with the progress.

The Zdirect is a high quality totally passive interface that lets you connect instrument, line, or speaker level signals to a mixer or other balanced input thru a high performance audio isolation transformer. The high impedance single-ended 1/4" input is converted by the transformer into an isolated balanced low impedance signal source. The Zdirects audio transformer has an extremely flat and wide frequency response and can handle high signal levels while still maintaining an isolated balanced low impedance output. This gives the Zdirect a very clean and neutral sound with a wide variety of signal sources and over long signal runs in high noise environments.