Free UK DeliveryFinance at checkout30 Day ReturnsWorldwide DeliveryAudio Affair Facebook

Spring Bargains

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


. 0 Reviews . Write a Review

Enquiry/price check? Click here SKU: 7247
Ex VAT: £4,082.50

RRP: £4,899.95


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

Available - please select an option below

Condition: Brand new in original retail packaging

* Required Fields

RRP: £4,899.95


Earn 9798 loyalty points when you order this item.

You can earn loyalty points on every order you place on this website. If you select to create an account at checkout, your loyalty points will be saved and you can use these to discount future orders online. 


Each product page shows you how many loyalty points you can earn when you order that item. Essentially, for each £1 you spend, you earn 1 loyalty point and for every 1 point earned, 1p will be added to your loyalty point balance (this is the same as some of the UK's biggest loyalty point cards). So for example, if you spend £500, you'll earn 500 loyalty points which can be used to discount a future order by £5.00. 


Special offer - earn double loyalty points on orders placed between 8pm 23/05/24 and 9am 28/05/24. PLUS any loyalty points already earned in your account are also worth double discount at checkout.


Read more

Get a trade in quote

To reduce the price of this item, we may be able to accept your old equipment as a trade in (part exchange).

Please send us your details along with details of the item(s) you'd like to trade in and we'll come back to you within 2 working days (but usually a little sooner) with a quote.

Send us a message now

Do you have any questions on this item you'd like us to answer? Or have you seen it cheaper elsewhere and would like us to see if we can beat it? Send us the details below and we'll come back to you quickly (usually within 24hrs, sooner during opening hours)


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

Write Your Own Review

Write a Review

  • 1 star 2 stars 3 stars 4 stars 5 stars
    1 Star 2 Star 3 Star 4 Star 5 Star


Contact Details

Customer Services Landline
0121 224 7350/7351

Sales Landline
0121 224 7300/7401

Sales WhatsApp
07706 203859

As Featured/Seen In

The Telegraph
Gadget Show
BBC Midlands Today
Birmingham Mail
Hi-Fi Choice Magazine

Mobile Site

Copyright © Audio Affair (Alexander Michael LTD) 2006-2024. Vat No. 913183835. All rights reserved.