Flawless silver pair of MSB M204. One of a handful of the finest amps made period! Pure class A! Demo's with full warranty. Shipping will be included in the negotiated (accepted offer) price within the 48 states. Shipping costs outside of the 48 contiguous states will be extra and actual costs.
HifiCritic - 2017 review of the M204..."These MSB M204 are so utterly competent in every department that there is nothing much to criticize...For those of us who love music, these amplifiers can reward like few others. They are simply brilliant, and well deserve an Audio Excellence rating."
Order the below 2017 issue of the 100% ad free unbiased Hifi Critic magazine from the UK.
“MSB’s Platinum is, quite simply, the best amplifier we’ve ever heard.”
Paul Messenger, HI-FI CHOICE August 2009
Editors Choice, 5 stars and on the cover!
Powered by innovation
When pushing the limits of our DAC, we were unable to find an amplifier revealing enough for the advancements of our technologies. After scouring the market, we decided to build an amplifier from the ground up, one capable of relaying the music from the DAC to the listener. Equipped with a more robust design ethos, the M204 comes with state-of-the-art transformers, ground isolation and shielding technology, and a new 20db lower-noise input stage than the M203. Innovation never sounded so good.
As you’ve probably noticed, the M204 Amplifiers are round. Function came first as this amplifier evolved with a 360 degree design creating an astonishingly tight core. Signal paths remain very short through the amplifier from the input to the output. The custom multistage heatsink design assists in the dissipation of roughly 300 Watts of standby power.
Truly balanced architecture
The amplifier features completely balanced architecture. No shortcuts. We’ve also added an additional single-ended input to reward dynamic customization. A simple switch located near the input jacks allows you to switch the amplifier between Single-Ended operation, Balanced (high gain, + 6dB) and Balanced (low gain).
Functional control features
The M204 power controls include “power off”, “standby”, and “power on”. These are controlled by a subtle lighted toggle switch on the top of the amplifier. Additional power control can be implemented with the use of 12-Volt triggers on the jack panel. A second lighted toggle switch allows switching between high and low bias. The low bias mode significantly reduces the energy use of the amplifier for hot environments or non-critical listening.
A modular design
Having made amplifiers for many years, we’ve thought it best to design for the long term. With that in mind, we’ve put all power sensitive devices on a simple power module located in the back of the amplifier. This allows the AC input to be easily replaced by the end user in case of failure due to a power surge. Unlike most amplifiers with integrated heatsinks, these are removable from the inner core to be replaced, upgraded, shipped, or serviced.
Producing the M204 inside of a core enclosure has been a great advancement in its design. Full and complete production of the cores improves reliability and performance. Each core undergoes rigorous testing for performance and function before being stocked. When ordered, a fresh set of metal is installed on the core and it is measured as a complete set for final shipping. All custom color orders are pulled from stock instead of being a single item production.
Available in matte silver and matte black. Custom finishes are available with additional production time.
The M204 Monoblocks
- 2 X Monoblock Amplifiers
- Isolation grounding cable
- 120 volt or 240 volt power module
- Stock colors: Silver and Black
The M204 Monoblock
(per mono amplifier)Technical Specifications
AC Voltage100V, 110/120V, or 220/240V configured at the factory.Static Power Consumption250 watts (Low Bias)
280 watts (High Bias)
Standby power less than 2 wattsMaximum Power Consumption1,800 watts into a 2 ohm loadFrequency Response0Hz-20Khz, ±0.015dB, 8 Ohm Load
Dynamic Range>130dBXLR Input40K Ohm Balanced
Switchable +16dB or +22dB Gain
Common Mode Rejection Ratio>95dB CMRR @ 60Hz
>90dB @ 1kHz
>70dB @ 20kHz
RCA Input20K Ohm single-ended
>200W into 8 Ohms
>400W into 4 Ohms
>800W into 2 Ohms
Fuse1/4"x1-1/4" 15A 250V Slow BlowControlsHigh/Low Bias switch
On/Standby/Off toggle switch
2x MSB 12V trigger portChassis Dimensions
Width:12.875 in (327 mm)Depth:12.875 in (327 mm)Height:21 in (533 mm)Weight:93 lbs (42 kg)Shipping Dimensions
Width:24 in (609 mm)Depth:20 in (508 mm)Height:20 in (508 mm)Weight:115 lbs (52 kg)Included Accessories
IEC Power Cord
4X Rubber Feet