Welcome to Willys-Hifi, the UK loudspeaker parts specialist. We ship Worldwide ! Helpline 01702 523999. Free shipping on all UK orders over £100.

Welcome to Willys-Hifi, the UK loudspeaker parts specialist. We ship Worldwide ! Helpline 01702 523999. Free shipping on all UK orders over £100.

Morel Replacement Tweeters

July 07, 2016

Morel Replacement Tweeters

Morel Tweeter Replacement Guide.

Morel logo

Here is a table showing the old classic Morel tweeter models and their modern suggested replacements:

MDT-29 CAT 298
MDT-30 CAT 308
MDT-32S CAT 328-104 / CAT 328-110
MDT-33S  ET 338-104 / ET 338-110
MDT-37    CAT 378
MDT-39 CAT 408
MDT-44 ET 448

The MDT-32S and MDT-33S have 2 possible replacements - the only difference is the faceplate diameter of its modern equivalent, either 104 or 110mm.

Further info on Morel proprietary drive unit technologies can be found here:  Morel Technology

All Morel drive units are covered by our price match promise, for details click herePrice match

Phone helpline: 01702 523999 or contact us

Free shipping to the UK mainland - all prices include VAT.






Also in Willys-Hifi Loudspeaker Spares News

Website upgrades for trade and non EU customers

November 30, 2018

Trade customers: EU VIES integration.

Trade customers within the EU can now enter their VAT identification number within our shopping basket or their customer account page for validation by VIES, the process takes a few seconds and if the details entered pass scrutiny, the VAT content will automatically be removed from the total due. You can also save your EU VAT details to your account for future use. This site upgrade gives a far more streamlined checkout process for bona fide EU trade customers.

A picture of the basket input field (highlighted) is shown below:

EU VAT ID demo

 Non EU customers: VAT free sales.

For reference, all of our products now show VAT inclusive / exclusive prices.
Customers outside of the UK/EU territories are exempt from UK VAT - our website will automatically offer you VAT free sales based on your geo location and remove the VAT content accordingly.
If you have any questions or comments please let us know - constructive criticism always welcome :0)


Phone helpline: 01702 523999 or contact us

Willys-Hifi Ltd - the specialist UK loudspeaker parts company

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16 Ohm L-Pad Attenuators

November 23, 2018

16 Ohm L-Pad Attentuators now in stock.

Following many customer requests we now have 50 watt 16 Ohm L-Pad attenuators ready for immediate dispatch from the UK. These elusive spare parts are perfect for restoring vintage loudspeaker models with L-Pads such as the classic AR 4x and many other 15-16 ohm models from the valve era; also suitable for vintage guitar amps featuring EL84 single ended or push - pull output stages with a fixed 16 ohm output tap.

UK / EU Exclusive Product.

Click on the image below for more details:

16 Ohm 50 watt L-Pad attenuator

Phone helpline: 01702 523999 or contact us

Willys-Hifi Ltd - the specialist UK loudspeaker parts company

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Mission 753 Crossover Rebuilds

July 20, 2018

Mission 753 Crossover Rebuilds.

We now offer a crossover rebuild service for the ever popular Mission 753 floorstanding loudspeaker.

Rather than using specific crossover capacitors, the 753 featured standard aluminium electrolytics wired in series to form non-polarised electrolytics - this far from ideal cost / space saving excercise was part of the price to performance balance, and to be fair worked reasonably well but is now a prime candidate for upgrade. Click on the picture for more details:

Mission 753 crossover

Another potential problem with the 753 is the very high tweeter failure rate and subsequent crossover damage:

Melted inductor

The 753 often turns up on auction sites with dead tweeters - running these speakers with open circuit tweeters for extended periods of time causes the tweeter bypass inductors to heat up and melt; we supply a kit of components to cure this issue:
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Finally, the Mission 753 tweeter is now back in stock:

Mission 753 tweeter

Phone helpline: 01702 523999 or contact us

Willys-Hifi Ltd - the specialist UK loudspeaker parts company

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