Beschreibung
Grace Design M501The m501, is the 500 series module version of the venerable m101 mic preamplifier. Now the signature transparency and detail of Grace’s circuit designs is available for your 500 series frame.While the 500 series market has plenty of colored mic preamplifier options, the natural, musical clarity of the m501 makes it a welcome addition to the field. This circuit is for engineers confident with the quality of the source, mic section and placement, and wish to capture it with as little coloration or distortion as possible.The m501 module is a balanced, transformerles design, with 48V phantom, a 75Hz HPF and a 1/4” HI-Z instrument input. Also standard is an exclusive ribbon mic mode, which raises the mic input impedance, bypasses the input decoupling capacitors and deactivates 48V phantom to protect delicate ribbon mics from damage.Large diaphragm, vintage ribbon or trusty dynamic – the m501 brings out the very best in any microphone and takes the guesswork out of your input chain.Features:Fast and musical transimpedance architecture Updated audio path with 0.5% precision metal film resistors New 12 position gold plated rotary gain switch High performance output line driver amplifier and HPF amplifier New Ribbon mic mode (also great for dynamic mics)- Relay bypass of phantom power decoupling capacitors, increased input impedance, and 48V lockout Wider 10-75dB gain range Enhanced RFI interference suppression Three output connectors: XLR balanced, TRS balanced and ¼” unbalanced Bombproof laser-etched black anodized frontpanel Sealed gold contact relay for Hi-Z input switching Built in power supply / no wall-wart! Led indicators for +48V, Ribbon mode, and HPF Five year warranty on parts and labor Made in the USASpecifications:GAIN RANGE (5dB steps)Mic input 10-65dBHi-Z input -10-45dBOutput trim control 0 to +10dBTHD+N 1kHz, 22Hz-22kHz BW@ 20dB Gain +20dBu out INTERMODULATION DISTORTION@ 40dB Gain, +20dBu outSMPTE/DIN 4:1 7kHz/50Hz NOISE – REFERRED TO INPUT @ 60dB Gain50 ohm source CMRR, @60dB Gain, 3.5Vcm100Hz >55dB1kHz >75dB10kHz >65dBPHASE DEVIATION (HPF off)50Hz-25kHz @40dB Gain FREQUENCY RESPONSEMic input @ 40dB Gain -3dB 3.8Hz-288kHzMic input @ 40dB Gain -0.5dB 8.35Hz-135kHzHi-Z input @ 20dB Gain -3dB 1.7Hz-180kHzHi-Z input @ 20dB Gain -0.5dB 4Hz-72kHzIMPEDANCEMic input 8.1k ohmsMic input, Ribbon mode 20k ohmsHi-Z input (unbalanced) 2.5M ohmsHi-Z input (balanced) 5M ohmsBalanced Output 300 ohmsUnbalanced Output 150 ohmsPEAK LED METERGreen threshold -12dBuRed threshold +16dBuMAXIMUM OUTPUT LEVEL100k Ohm load, 0.1% THD , 1kHz, API Lunchbox 27dBuWEIGHT and DIMENSIONS0.7 lb H5.25 x W1.5 x D6.6316g H13.34cm x W3.81cm x D16.75cmPOWER CONSUMPTIONCurrent required from +16V and -16V power supplies 120mA MaxFor more information, please visit this products webpage.
