MBL

Efficient mains powered DC-coupled MOSFET monoblock

The compact MBL is an efficient mains powered DC-coupled MOSFET monoblock that only requires approx. 11 watts idling power.

It has a unique gain selector (x5, x10, x20) that makes it possible to minimise attenuation with the volume control. This in turn greatly improves SN ratio and reveals much more detail at lower listening levels.

The gain setting is displayed on a white LED display that is statically driven in order to eliminate switching noise..

The novel symmetrical delta input stage offers large closed loop bandwidth (500KHz ... 2 MHz) and low distortion.

Novel speaker sensing feedback system minimises crossover distortion and maintains very ow distortion when a real world speaker is connected to the amplifier. This feedback system allows for corrections before distortion occurs and maintains perfect control over the speaker.

It outputs 20W rms in 8 Ohms and 35W rms in 4 Ohms. The output is not protected in order to eliminate distortion (load dependent relay contact resistance for example) introduced by these protection systems. Single ended input, 10K Ohm input impedance.

Rear view.

Inside view.

 Why buy a MBL ?

Silence:

  • no fan noise
  • no SMPS noise

Low power consumption:

  • 20 W rms in 8 Ohm
  • 35 W rms in 4 Ohm
  • 11 W idling power

SN ratio:

  • Change gain and greatly improve SN ratio
  • Reveals much more detail at lower listening levels
  • Novel speaker sensing feedback system minimises distortion

Specifications
MBL Width 24 cm
MBL Length 26 cm
MBL Height 6 cm
MBL Weight 2.8 kg
Output socket 2x banana speaker output socket
Input sockets 1x RCA
Main input socket 220V AC - IEC 60320 / C8