The MP-1A is a classic single-channel valve mic pre based on the celebrated MP-1.  It offers the same true valve in/valve out design, plus the same quality that made the MP-1 and MP-2 the buzz of the professional audio industry.  New features include a -20db pad switch, two selectable tone switches for four possible tones, plus 60db of gain (perfect for next generation ribbon mics).  Classic features include a world-class Jensen input transformer coupled with a custom wound output transformer, delivering the low noise and top quality sound expected from a high-end, high-priced mic-pre.

Additional features include a balanced combo XLR/1/4 inch input, and a true VU meter, along with phantom and phase switches, and a front panel line level input jack.

Experience the rich, full spectrum of sound that the MP-1A delivers to live performances and recordings, and benefit from having 4 valve sounds available from just one valve pre-amp.

A Designs MP-1A Valve Mic Pre

Click for full-size image

User Comments on the original A-Designs MP-1

"A welcome addition to the ranks of top-quality mic pres"

"Stunning sound quality with serious bass response and a warm, airy top end typical of great tube mic pres."

"Mr. Clean, with some bite...Comes through with warmth and transparency...a clean and airy high end"

FEATURES

All True Tube Design, 2UR
EF86 Input Valves
6N1P Output Valves
Jensen Input Transformers
Custom Wound Output Transformers
VU Meters
Level Controls
-20dB Pad Switch
Polarity Switch
Phase Switch
Two Selectable Tone Switches
Custom Milled Face Plate
Solid Vented Metal Frame
Toroid Power Transformer
XLR Input/Output Connectors
1/4 Inch Direct Injects
High Gain (60 dB)

TECHNICAL SPECIFICATIONS

Input Impedance:
Gain Range:
Noise (EIN):
Mic Phantom Power:
Mic Input Phase:
Instrument Jack Input:
Input Impedance:        
Balanced Output:        
Output Impedance:
Maximum Level:          
Output:                     
Frequency Response:
Distortion (THD):         
Power Requirements:
Dimensions:
Weight:                    
Shipping Weight:

 

1.4k Ohm
60 dB
-128 dB
48 Volt, Switchable
0-180° Switchable
rear XLR / front 1/4"
Min > 100k Ohm
XLR
600 Ohm
+22 dBu
Low-Z, transformer-balanced
28Hz - 60kHz
>.08 @ 1 kHz
100/120/230 VAC - 42 Watts 482w x 89h x 254d mm
6.8 kg (18 lbs)
7.7 kg (20 lbs)

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