Grace Design m101
MPN #m101
$1155.00
Save 12.8%, MSRP $1325.00
1-channel Microphone/Instrument Preamp with Balanced, Unbalanced and Instrument Inputs
Maintaining Grace Design pedigree throughout, the m101 employs our balanced, transformerless, transimpedance circuit topology. With incredible bandwidth and headroom, the m101 is natural, musical and detailed, allowing engineers and musicians to consistently record vibrant, amazing tracks.
The m101 is equipped with our new universal switching power supply, which is dead quiet and accepts input voltages from 100 to 240VAC. The front panel is a tough black anodized / laser etched black, which ensures legibility and usability in varying light conditions. And all preamp functions have a dedicated indicator LED, including the 48V phantom power and HPF switch.
Built in as standard is our unique Ribbon Mic Mode, which bypasses the input decoupling capacitorss, raises the input impedance from 8.1k? to 20k?, and defeats the 48V phantom power, preventing damage to delicate ribbon mic elements. Ribbon mics, you're welcome.
The gain range is 10-75dB, including the additional +10dB of gain available with the output trim control. This provides ample gain for use of any type of microphone in any recording situation. The gain control is a precision gold plated 12 position switch and the circuit path is built with 0.5% metal film resistors.
Included is a HI-Z input on the front panel. Rear panel I/O options include both balanced TRS and unbalanced TS 1/4" outputs, along with the standard XLR balanced out and XLR microphone in.
Equally at home amplifying a vintage condenser mic or a plugged-in acoustic guitar, the m101 delivers the kind of high fidelity performance previously available only to big budget recording studios and Grammy winning musicians. Add it all up while considering that the price is unmatched and the picture becomes pretty clear " the m101 is one little hot rod piece of pro audio gear for the masses.
Features
fully balanced, transformerless designfast, musical transimpedance amplifier architectureprecision 11 position rotary switch gain controlsoptimized DI instrument input, XLR mic inputbuilt in high pass filter switch (75Hz ,12dB per octave)10dB output trim controls for fine level adjustment48V phantom poweravailable with an optional extended gain range input for ribbon microphonesGrace Design audiophile performance and rugged chassis construction, packaged to be avaialble to any recordisttwo units can be mounted side by side in a standard 1U rack trayno electrolytic capacitors in the signal pathsealed gold contact relays for all signal switchingtwo color, bi-phase LED peak indicatorhighest quality metal film resistors used throughoutfive year warranty on parts and labor
Specifications
GAIN RANGE (5dB steps)
Mic input : 10-65dB
Hi-Z input : -10-45dB
Output trim control : 0 to +10dB
THD+N
@ 20dB Gain +20dBu out : <0.00085%
@ 40dB Gain +20dBu out : <0.0010%
@ 60dB Gain +20dBu out : <0.0050%
INTERMODULATION DISTORTION
@ 40dB Gain +20dBu out :
SMPTE/DIN 4:1 7kHz/50Hz : <0.0020
NOISE - REFERRED TO INPUT
50 source : <-130dB
150 source : <-128dB
600 source : <-124dB
CMRR
100Hz : >68dB
1kHz : >75dB
10kHz : >65dB
PHASE DEVIATION (HPF off)
50Hz-25kHz : <6
FREQUENCY RESPONSE
Mic input @ 40dB Gain -3dB : 4.5Hz-390kHz
Mic input @ 40dB Gain -0.5dB : 10.5Hz-140kHz
Hi-Z input @ 20dB Gain -3dB : 2.5Hz-195kHz
Hi-Z input @ 20dB Gain -0.5dB : 6Hz-74kHz
IMPEDANCE
Mic input : 8.1k
Mic input, Ribbon mode : 20k
Hi-Z input (unbalanced) : 1M
Hi-Z input (balanced) : 2M
Balanced Output : 300
Unbalanced Output : 150
PEAK LED METER
Green threshold : -14dBu
Red threshold : +16dBu
MAXIMUM OUTPUT LEVEL
100k Ohm load, 0.1% THD : +25dBu
WEIGHT and DIMENSIONS
2.4 lbs : H1.7" x W8.5" x D9.0"
1.09 kg : H4.3cm x W21.6cm x D22.8cm
POWER CONSUMPTION
100-240VAC : 5 Watts Max
all specifications subject to change without notice.
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