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Icon Audio MB90 MKII M Mono Block Valve Power Amplifier (Pair)


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Enquiry/price check? Click here SKU: 7247
Ex VAT: £3,332.50

RRP: £4,299.95


Incredibly rich and warm amplifier, with power and tonnes of musicality. Available with KT120 or KT150 valves.

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RRP: £4,299.95


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Warranty length 1 Year
Brand Icon Audio
Product Award HiFi World 5 Globes

Tech Specs

- Class A, all Triode front end
- Switchable Ultralinear/Triode 115/60W 
- 4x KT120 matched valves (per pair)
- 2x 6SL7 2x 6SN7 driving valves (pair)
- Signal to noise level: -90db
- Freq response: 20-20k Hz (+0-0.5dB)
- THD: typically <0.1% 1khz (4/8 Ohm)
- SCR Hi-Fi Audio Capacitors
- Cable: Silver plated pure copper PTFE
- Big custom wound PSU with Choke
- Gold plated Input & speaker terminals
- Sensitivity: 450mv/ 950mv (high/low)
- Power: 230/240v, 200watts approx
- Consumption: 38/200W Standby/Max
- Dimensions (WDH): 200 x 500 x 220mm
- Weight: 21kg

Product Description

Icon Audio MB90 MKII M is a very high-performance power amplifier specifically designed to work in Triode and Ultralinear mode depending upon your preference and power needs. It can drive the very best of speakers with ease. Now featuring the Tung Sol KT120 valve crowned King of pentodes or Super KT150 valve.


Using only four valves the running cost and maintenance is very easy as the valves are run well within their maximum ratings. The front end is inspired by the famous British “Leak/Mullard” designs of the 1950s. This gives a very smooth musical quality to the high power available, making them very versatile in their application. Icon's unique big Tertiary wound “LDT” transformers give you true high-end performance in every way.

Bias Meter

The MB90 MKII M now also features importantly a built-in bias meter greatly simplifies keeping your amplifier in peak performance. Previously you had to pay attention to numbers. Now if the pointer is on the black mark, it’s correct. It couldn't be easier!

Why buy this amplifier?

This amplifier is an ideal replacement for a larger transistor amplifier, for someone who wants a modern “fast” sounding amplifier that will still give that “warmth” and lack of fatigue that transistors cannot give you.

Key Features

- All hand wired point to point
- Class A, all Triode front end
- Output: Ultralinear (115W) or Triode (60W)
- 4x KT150/KT120 matched valves
- 2x 6SL7 2x 6SN7 driving valves
- 4 & 8 ohm loudspeaker taps
- Valve cover included in the price
- Solen hi-fi audio capacitors
- Silver PTFE audio cable
- Tertiary winding output transformer
- Big custom wound PSU choke
- Gold plated Input & speaker terminals
- 400/1200mV (high/low) input sensitivity

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Contact Details

UK Local Rate Number
0844 50 403 50

Sales Landline
0121 224 7300/7401

Customer Services Landline
0121 224 7350/7351

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