Proudly making Quest AV equipment in Australia since 1988
abn 99 064 323 255 also t/a Quest Electronics® and Quest AV®
Phone and SMS ... 0431 920 667Mail ... POB 348 Woy Woy NSW 2256
Balanced inputs and outputs respectively are 3-pin female and male XLR's at the rear. The unbalanced inputs and outputs are available at both the front panel (RCA's) and rear panel (3.5mm stereo mini-jacks).There are internal jumpers provided for pin 2 or pin 3 of the XLR's to be "Hot" (+ve phase) and the input and output screens of the XLR's may be disconnected. Factory defaults are pin 3 Hot and screens grounded.The balanced output levels automatically compensate if either pin 2 or pin 3 of the XLR's are connected to pin 1 (ground).Sufficient gain and attenuation are provided by the front panel multi-turn adjustments to cope with the highest and lowest common audio levels.The headroom, frequency response, noise and distortion specifications are impeccable, making the AB2C audibly transparent in the audio chain.Three units will fit side-by-side on most rack trays or on top of other rack-mount equipment. The AB2C's front panel is 1RU high.Mains supplies of 240V & 120V 50/60Hz are catered for and a 12-24Vdc version is available to order.
BALANCED INPUTS to UNBALANCED OUTPUTSI/P Connectors: 2 x Female 3-pin XLR's (rear)I/P Ground: Floating or connected*, internal selectionO/P Connectors: 2 x RCA's (front), 1 x 3.5mm Stereo socket (rear)I/P Impedance: 50K Ohms nominalO/P Impedance: 100 Ohms nominalGain: -26dB to +10dB, front panel accessibleLevel: +26dBu max (bal I/P), +20dBu max (unbal O/P)Freq Response: 3Hz to 50KHz (-3db)S+N to N: >96dB widebandTHD: <0.01% @ +4dBu / 1KHzUNBALANCED INPUTS to BALANCED OUTPUTSI/P Connectors: 2 x RCA's (front), 1 x 3.5mm Stereo socket (rear)O/P Connectors: 2 x Male 3-pin XLR's (rear)O/P Ground: Floating or connected*, internal selectionI/P Impedance: 100K Ohms nominalO/P Impedance: 50 Ohms per leg nominal (for Hi Z to 600 Ohm load)Gain: -5dB to +20dB, front panel accessibleLevel: +20dBu max (unbal I/P), +26dBu max (bal O/P)Freq Response: 3Hz to 50KHz (-3db)S+N to N: >96dB widebandTHD: <0.005% @ +4dBu / 1KHz
GENERALAC Supply options: 240Vac (default) or 120Vac (to order), +/- 10%, <7VA, built-in thermal and over-current protection.DC Supply option: 12 to 24Vdc nominal (9 to 36Vdc guaranteed) <7WDimensions: 146 x 195 x 44mm overall, W x D x HWeight: 1.3Kg (mains version), 1Kg (DC version)Other features:•The front and rear unbalanced outputs can be used simultaneously.•The front and rear unbalanced inputs are actively mixed and do not interact.•XLR i/o pin-3* or pin-2 'Hot' (+ve phase) can be selected internally by moving one connector. •The balanced input and output screens can be separately grounded* or left floating.•1U front panel height allows convenient mounting on a rack tray (up to 3 across)•*Factory defaults: Pin-3 +ve and all screens grounded
The Quest AV model AB2C is a high performance balancing, unbalancing and level-shifting stereo audio interface to use between domestic, semi-professional and professional equipment.