m20 PREAMPLIFIER
M20 dual monO
PREAMPLIFIER
The M20 dual mono preamplifier builds on the analogue design of the M12 dual mono source controller to deliver a rich analogue experience with fluid, fast and tonally balanced audio. The M20 features fully differential and independently buffered signal paths for superior isolation and purity of sound. A proprietary, all-discrete resistor ladder attenuator, ceramic circuit boards and three dynamic Class-A linear power transformers create the ultimate platform for your audio system.
CHAnnel
YOUR POWER
The attenuator is a discreet ladder of digitally controlled resistors in 1dB steps utilising Vishay foil resistors in critical locations in the circuit; we find them to have a unique sound, so we employed them to impart a tonal character to the M20; the PCB is made from ceramic materials that offer excellent dialectic properties. The final output buffers are a proprietary in-house discreet design, and level control is accomplished using an R2R ladder technique. This allows for perfect balance and tonal character at any level with recall, programmable input offset and remote control capabilities.
THE heart
OF YOUR SYSTEM
The M20 features three separately buffered analogue outputs, two balanced and one unbalanced. The output buffers are our discreet design which is also based on other products found in the M1, M12 and M21. All signal switching and hard output mutes are done using logic-controlled relays. With three separately buffered outputs, the M20 is ideal for bi-amp applications with two balanced outs to drive two power amps or run two or three zones.
MASTERFULLY
CONNECTED
The M20 includes 2 balanced XLR inputs/outputs and 1 unbalanced RCA input/output. Pre-set channel naming conventions from the display can be uniquely customised through the menu as well as fine adjustment of level offset. The trigger-out mini-jack on the rear can be connected to our power amplifiers or DACs by sending a 5V DC voltage trigger to power them in and out of standby.
UNIQUELY
BRICASTI
The M20 is a fully differential dual-mono preamp powered by three linear power supplies, one for each of the analogue sections and a separate supply for the digital control circuit processor, ensuring isolation from the analogue PCB and power supplies in a full Class A design. The M20 comes complete with Stillpoints isolation feet and is available in our Classic anodised black finish, clear aluminium Argento finish or in Platinum finish with brass fittings.
PLATINUM
FINISH
In addition to standard Black and Argento finishes, a Platinum finish is listed as an option for the M20 preamplifier This plating is based on anodising the metal with a 40-micron coating of pure platinum in-house. This process is achieved by plating the aluminium metal with copper, nickel, and Platinum.
This stunning mirror-finish not only looks outstanding but also increases the mass of the chassis, thus stepping performance up a notch with better quietness, resolution and RF rejection.
M20 TECHNICAL SPECIFICATIONS
Balanced Analog Inputs/Outputs:
2 XLR balanced (pin 2 hot)
UNBalanced Analog Inputs/Outputs:
1 RCA
THD+N:
0.0007% 20-20k typical
Input impedance:
200k ohm
Max input level:
+20 dbu Balanced
Max output level:
+23 dbu Balanced, +16 dbu unbalanced
Crosstalk:
> 120db
Attenuator:
90 db in 1 db steps from 0 to -89db.
GENERAL SPECIFICATIONS
General Specifications:
EMC: Complies: EN 55103-1, EN 55103-2, FCC part 15 and Class B
rohs:
Complies with: EU RoHS Directive 2002/95/EC
Safety:
Certified to: IEC 60065, EN 55103-2
Operating Temperature:
32 F to 105 F (0 C to 40 C)
Storage Temperature:
-22 f to 167 F (-30 C to 70 C)
Finish:
Anodised aluminium, optional Platinum with nickel plating, brass knobs and buttons.
DIMENSIONS:
17” x 12.5“ x 4.5”
43,18, 31,75, 11,43 cm
Shipping Dimensions:
22”x 17”x 7”
55,88, 43,18, 17,78 cm
WEIGHT:
15 lbs, 6.8 kg.
Shipping Weight:
18 lbs, 8,2 kg.
MAINS voltage:
-100, 120, 220, 240 VAC, 50 Hz – 60 Hz factory set
TRIGGER OUT:
TRS mini jack, 5V ring, ground Bp
Power consumption:
28 Watts (6W standby)
Warranty parts and labor:
2 years non-trans.
MANUAL:
Click here to open
HANDMADE
IN THE USA
All of our products are crafted in the old world tradition, in a classic brick mill building in Massachusetts USA by a team of individuals dedicated to excellence.