PreSonus MP20 2-Channel Class A Preamp

Discrete mic/line preamp with summing buss. One rack space.

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PreSonus MP20 2-Channel Class A Preamp reviews

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24 People rated this product : * * * * * * * * * * 7 out of 10

 

2 People wrote reviews

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* * * * * * * * * * 10 out of 10

"The best buy you'll make for your studio."

Feature:
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.

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 every penny.

Desirability:
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.

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.

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.

Support:
Haven't needed them, that's support enough for me.

Submitted: 10/26/2006

Style of Music: All, Jazz, Metal, Classical

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* * * * * * * * * * 3 out of 10

PreSonus MP20 PreAmp Customer Review

I bought an MP20 about 9 months ago it had a problem with the headphone amp. it took me a while to notice that because I monitor with my mixing console. I than began to notice a ground problem. I took it back to the store that I bought it at, they sent it out for repair. 5 weeks later I got it back with the same problems, after I was told it was fixed. I than sent it back, and received a lowner unit from the store the VXP . This unit also seems to have a ground problem, or is very noisy. 3 weeks later I recieved a message saying that the unit was "unfixable", and that I would be recieving a new unit. That was 2 months ago, and after having enquired several times to the store where I got the unit from. I have been told "Were having trouble getting ahold of anyone at presonus, knowone seems to know whats going on with your pre-amp".

Submitted: 4/30/2002

Style of Music: I run a small studio, so a wide variety

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About This Product!
Description
Docs
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 in a single rack space steel chassis with a thick, high-quality, blue anodized front panel

Technical Info

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.
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