You are looking at a pair of Icon Audio MB90 MkII M Mono Block Power Amplifiers with the KT150 matched valves.


This pair of amplifiers has had various other manufacturer upgrades; please see below for details:


- Jensen capacitor upgrade

- The 6SL7 has been upped to a Tungsol gold pin version

- 6SN7 has been replaced by a Psvane or Shuguang Treasure CV181




The current price of this pair of amplifiers with all of the above upgrades is £ 4,630



The Mono Blocks are in beautiful condition; there are a few tiny marks (please see photographs) but they are of no real significance. Other than that, on close inspection you may find an imperfection, but nothing that we can see.

Ship worldwide in original boxes with David Shaw badges, user manual and mains cables (the mains cables will only be included if the buyer lives in the U.K.)

The valves will be removed and carefully packaged along with the other accessories in a separate box for safer shipping.

Also included is a set of valves bought new in 2021 at a cost of £ 520, comprising:


4 x Tungsol KT150 (matched pairs)

2 x Psvane 'David Shaw' CV181

2 x Sylvania (Joint Army Navy USA) 6SN7GT

2 x Hangzhou OD3 voltage regulators



Worldwide courier shipping on this product.







MB90 MkII M



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 Super KT150 valve.


Design

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)

- 4 x KT150

- 2 x 6SL7, 2 x 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




Technical Specifications

- Class A, all Triode front end

- Switchable Ultralinear/Triode 115/70W

- 4x KT150 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 (WxDxH): 200 x 500 x 220mm

- Weight: 21kg (each)







The MB90 MkII M amplifiers operate on 230 - 240V, 50/60Hz. This is perfect for the United Kingdom, Europe, Australia, Hong Kong, Singapore and many other countries.

If the Voltage is different where you live, you will need to convert the Voltage (either internally or externally) to 230V in order for the unit to operate.





Shipping


U.K.: Shipping will be by major courier (next working day service)

European Union: Shipping will be by major courier (2 to 6 working day service, dependent on destination country)

North America: Shipping will be by FedEx Priority or DHL (1 to 3 working day service)

Oceania and Far East: Shipping will be by TNT, DHL, UPS or FedEx (3 to 6 working day service, dependent on destination country)



All shipping services fully tracked and insured.




We do not ship direct to China. Buyers wishing items shipped to China, please contact:

中国大陆的买家们
我们公司产品无法直接运输到中国大陆。如果您想参加我们公司物品的拍卖和竞标，请联系我们的中国代理：L.J.E Marketing Ltd.
你们可以通过微信联系代理，微信号码是：wguk888

希望你们能通过代理(L.J.E Marketing Ltd.)，购买到合意的产品。

谢谢支持





Thanks for looking. Any questions, please ask.