Icon Audio MB30 Power Amplifier

The new KT120 was chosen for its all round qualities and good power, it is also considerably cheaper than vintage triodes like the 300B which will only deliver 9W SE. The heart of a good Single Ended amplifier is the output transformer. Our specially developed Low Distortion Tertiary transformers allow the KT120 to really “sing” without constriction giving wide bandwidth and dynamics with excellent detail.

The MB30 is optimised for Triode and UL operation. 16 Watts being ample for most situations. Especially with our new “Full Range M” speakers and other designs such as Lowther and Fostex being ideal. But recognising that there are many speakers that require more power. The MB30 works very well in “Ultralinear” mode allowing the full potential of the KT120 to work its magic.

Designed to be used either an active or passive pre amplifier, or direct from a single source.

The “easy bias” meters ensure that that amplifier is giving its best performance and also gives an indication of output power used. Very useful when you may need to know if you are likely approach the maximum available power.

THIS OFFER CONCERNS OUR DEMO MODEL !

Specifications:

• Comprehensive manual supplied
• All hand wired point to point
• Class A, all Triode front end
• Output Ultralinear (110W) or Triode (60W) switchable*
• 4x KT120 matched valves (per pair)
• 2x 6SL7 2x 6SN7 driving valves (per pair)
• Signal to noise level -90db
• Frequency response 20hz-20kHz +0 0.5db
• THD typically less than 0.1% 1khz
• 4 & 8 ohm loudspeaker taps
• Beautiful valve cover included in the price
• SCR hi fi audio capacitors
• Silver plated pure copper PTFE audio cable
• Tertiary winding output transformers
• Big custom wound PSU with Choke
• Gold plated Input & speaker terminals
• 450mv (high) & 950mv (low) input sensitivity.
• 230/240volts 200watts approx
• Consumption: 38w standby, 88w quiescent, 200w Max
• C E, ROHS

Ideal for: most situations where larger SE power is required by someone wanting a very relaxed sound. Well suited to larger more efficient speakers.

Pro’s: Relatively low power consumption. Economical valve replacement cost. Low maintenance design.

Con’s: If high volume and heavy bass is required, a larger more efficient speaker would be better.

Specifications and Features

• 100% Pure Class A output power
• Class A, all Triode front end
• Valve rectifier, GZ34/5AR4
• Output power Triode (16W). Ultralinear (27W)
• Oversized choke regulated power supply
• 1x KT120 output valve (KT88/90 compatible)
• 1x 6SN7 (CV181) double triode driving valve
• All hand wired point to point
• Signal to noise level -86db
• Freq resp 20 – 20kHz +0 –0.8db 45kHz -3db(8w)
• THD typically less than 0.5% 1khz (8w)
• 4 & 8 ohm loudspeaker taps
• Low feedback design (no feedback on high gain)
• Solen/SCR hi fi audio capacitors Jensen upgrade
• Silver plated copper PTFE audio cable
• Tertiary winding output transformers
• Big custom wound PSU Choke
• Gold plated Input & speaker terminals
• 330mv (high) & 925mv (low) input sensitivity.
• 220/240volts 85w approx (each)
• C E, ROHS
• Size in mm W160, D380, H210, 12kg ea
• Packed 44cm x 25cm x 32cm 13kg 2 boxes
Typical values @ 235v AC (Specifications subject to change)