PreSonus MP20 2-Channel Class A Preamp
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zZounds Gear Experts Say...
Discrete mic/line preamp with summing buss. One rack space.
Overview
The MP20 Class-A Discrete, Twin Servo Microphone Preamplifier is a 2-channel microphone preamp with the same technical specifications as the M80. The low-impedance stereo mix buss can be used for full control over stereo imaging. The MP20 has a fully-loaded back panel featuring XLR balanced input/output connectors and TRS line inputs via Neutrik combo connectors as well as separate send and return jacks for inserting dynamics processors (such as The PreSonus ACP-22). Mix output connectors are XLR for balanced signals and TRS connectors for line level signals such as digital audio card inputs. The MP20 is housed in a single rack space steel chassis with a high-quality, blue anodized front panel.
This low impedance stereo mix bus can be used for full control over stereo imaging. It has a fully loaded back panel, featuring XLR balanced input/output connectors as well as separate send and return jacks for inserting dynamics processors (such as The PreSonus ACP-22). On the front panel a 1/4 in., high Z input is for instrument preamplification. The mix output connectors are XLR balanced providing connectivity for professional recording systems.
Features
Ý Class-A discrete, Dual Servo microphone preamplifier
Ý 20 dB pad
Ý 48 V phantom
Ý 80 Hz roll-off filter
Ý Polarity reverse
Ý IDSS control creates vintage warmth by adjusting even harmonic distortion
Ý 12-segment level meter
Ý High output headphone amplifier
Ý Identical technical specifications as the M80
Ý Housed… read more in a single rack space steel chassis with a thick, high-quality, blue anodized front panel read less
This low impedance stereo mix bus can be used for full control over stereo imaging. It has a fully loaded back panel, featuring XLR balanced input/output connectors as well as separate send and return jacks for inserting dynamics processors (such as The PreSonus ACP-22). On the front panel a 1/4 in., high Z input is for instrument preamplification. The mix output connectors are XLR balanced providing connectivity for professional recording systems.
Features
Ý Class-A discrete, Dual Servo microphone preamplifier
Ý 20 dB pad
Ý 48 V phantom
Ý 80 Hz roll-off filter
Ý Polarity reverse
Ý IDSS control creates vintage warmth by adjusting even harmonic distortion
Ý 12-segment level meter
Ý High output headphone amplifier
Ý Identical technical specifications as the M80
Ý Housed… read more in a single rack space steel chassis with a thick, high-quality, blue anodized front panel read less
Specs
Number of Channels: 2
Dynamic Range: >120dB
Noise Floor @ bus: 90.2dBu
Noise Floor @ Main Output: -96.4dBu
Noise Floor @ Channel Output: +24dB gain -88.2dBu
Headroom: +24dBu
Frequency Response: +/- 0.5dB 10Hz 60kHz
Crosstalk: <82dBu @ 10kHz
Channel Gain: +12dB to +40dB
THD + Noise: 0.00-1
THD + Noise Max I DSS: 0.5%
Input Impedance: 1.3k Ohms
Output Impedance: 51 Ohms
Master Output Control (BUS): -72dB to +1 OdB
Metering: Full Scale
Send Output Impedance: 51 Ohms
Return Impedance: 10k Ohms
Internal Operation Level: 0dBu =0dB
Input Connectors: XLR
Output Connectors: XLR
Send Connectors: 1/4 Tip Ring Sleeve
Return Connectors: 1/4 Tip Ring Sleeve
Power Supply: Internal Toroidial, Linear Supply
Power Requirements: 100VAC to 120VAC or 200VAC to 240VAC
Main Connection: EIC receptacle
Dimensions: (1) 1U rack, 18 x 1.75 x 7 in.
Weight: 12 lbs.
Dynamic Range: >120dB
Noise Floor @ bus: 90.2dBu
Noise Floor @ Main Output: -96.4dBu
Noise Floor @ Channel Output: +24dB gain -88.2dBu
Headroom: +24dBu
Frequency Response: +/- 0.5dB 10Hz 60kHz
Crosstalk: <82dBu @ 10kHz
Channel Gain: +12dB to +40dB
THD + Noise: 0.00-1
THD + Noise Max I DSS: 0.5%
Input Impedance: 1.3k Ohms
Output Impedance: 51 Ohms
Master Output Control (BUS): -72dB to +1 OdB
Metering: Full Scale
Send Output Impedance: 51 Ohms
Return Impedance: 10k Ohms
Internal Operation Level: 0dBu =0dB
Input Connectors: XLR
Output Connectors: XLR
Send Connectors: 1/4 Tip Ring Sleeve
Return Connectors: 1/4 Tip Ring Sleeve
Power Supply: Internal Toroidial, Linear Supply
Power Requirements: 100VAC to 120VAC or 200VAC to 240VAC
Main Connection: EIC receptacle
Dimensions: (1) 1U rack, 18 x 1.75 x 7 in.
Weight: 12 lbs.
Documents and Manuals
For support or warranty questions, please contact the manufacturer:
Phone: 225-216-7887
Web: https://support.presonus.com
Phone: 225-216-7887
Web: https://support.presonus.com
Reviews
Reviewers gave this product an overall rating of 5 out of 5 stars.
(26 ratings)
Submitted October 26, 2006 by a customer from yahoo.com
"The best buy you'll make for your studio."
This review has been selected by our experts as particularly helpful.
Sound
I use this preamp with AKG414's used as overhead mics on drum kits, as well as Shure SM81's for acoustic guitars. I ALWAYS hear more out of the mics I plug into this than with any other preamp I have at my disposal. This is a great preamp for condenser mics, it really delivers. As far as louder signals from dynamic mics (ie twin bass drums for a metal band) this unit seems to be a little bit too sensitive without heavy compression. That shouldn't take away from how well it delivers, it just focuses in on what this unit is good at: Sensitive pickup and accurate detail to audio reproduction.
Features
Each channel on this unit has two knobs: Gain and what seems to be a fine-tuning Gain knob. If you know what you're doing this is all you need. The usual +48v is included on each channel, and a very useful phase switch as well. It's really all you need.
Ease of Use
If you can't get a decent signal out of this thing, you'd better cut your losses and apply to work at your local fast food eatery ASAP.
Quality
It hasn't lost any knobs yet, but where I have it isn't exactly a test of it's durability. As far as finishing and appearance goes, this preamp is beautiful and has the appropriate ammount of blinking LEDs to keep most engineers busy.
Value
Want some clarity where it matters in your mix? You can't go wrong buying this, worth… read more every penny.
Manufacturer Support
Haven't needed them, that's support enough for me.
The Wow Factor
This thing's shiny, it blinks a lot, and it sounds GREAT! If I didn't have access to it already, I'd want it more than anything else I could want for my studio.
Musical Background:
Active musician, Recording engineer, Live sound engineer.
Musical Style:
All, Jazz, Metal, Classical read less
I use this preamp with AKG414's used as overhead mics on drum kits, as well as Shure SM81's for acoustic guitars. I ALWAYS hear more out of the mics I plug into this than with any other preamp I have at my disposal. This is a great preamp for condenser mics, it really delivers. As far as louder signals from dynamic mics (ie twin bass drums for a metal band) this unit seems to be a little bit too sensitive without heavy compression. That shouldn't take away from how well it delivers, it just focuses in on what this unit is good at: Sensitive pickup and accurate detail to audio reproduction.
Features
Each channel on this unit has two knobs: Gain and what seems to be a fine-tuning Gain knob. If you know what you're doing this is all you need. The usual +48v is included on each channel, and a very useful phase switch as well. It's really all you need.
Ease of Use
If you can't get a decent signal out of this thing, you'd better cut your losses and apply to work at your local fast food eatery ASAP.
Quality
It hasn't lost any knobs yet, but where I have it isn't exactly a test of it's durability. As far as finishing and appearance goes, this preamp is beautiful and has the appropriate ammount of blinking LEDs to keep most engineers busy.
Value
Want some clarity where it matters in your mix? You can't go wrong buying this, worth… read more every penny.
Manufacturer Support
Haven't needed them, that's support enough for me.
The Wow Factor
This thing's shiny, it blinks a lot, and it sounds GREAT! If I didn't have access to it already, I'd want it more than anything else I could want for my studio.
Musical Background:
Active musician, Recording engineer, Live sound engineer.
Musical Style:
All, Jazz, Metal, Classical read less
7 of 8 people (88%) people found this review helpful. Did you?
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