Fender Amp Kits / Fender Blues Junior Harma STR Clear Sapphire Kit

Fender Blues Junior Harma STR Clear Sapphire Kit Fender Blues Junior Harma STR Clear Sapphire Kit Click on image(s) above to view larger

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Many musicians have found that by upgrading the stock Eminence/Fender blue back speakers to a Jensen, Celestion or Weber they have improved the sonic and tonal definition with smoother distortion characteristics of these fine amplifiers. We also have the Harma USA series speakers that have been specially designed with 3 different tonal options so you can get the best out of your Fender amplifier. By upgrading the valves to selected HARMAs They have noticed the additional benefits such as better clarity, larger and improved sound stage with increased reliability. Here we have listed our most common upgrades giving you the opportunity to enjoy a valve and speaker upgrade at a greatly reduced cost.

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The Fender Blues Junior upgrade kit fitted with a Harma Clear Sapphire speaker and Harma valves will provide the ideal combination of classic vintage Fender crunchy open top sound with a tight British style low end. The speaker is designed to do exactly what is says providing a smooth clear natural top end which is less bright but still maintaining the best balance of clean vintage Fender sounds, warm overdrive with tight punchy lows.

We use a combination of the best of the current production valves and our own specially designed Harma Clear Sapphire guitar speaker that has been designed for Fender amplifiers.

The Harma STR ECC83 is used as it has the most neutral and clear vintage tone of all the current production ECC83/12AX7 types. The valves mid-range is very transparent and
very well balanced with nice even bass which has plenty of depth.

The treble has nice chime and is indeed the closest in sound to the Original G.E 12AX7 which most people consider the best 12AX7 in Fender amplifiers. We use a selected version to ensure that classic Fender sparkle.

The Harma EL84/E84L is chosen as it has the best clean sound out of any modern EL84.
In clean mode the valve has a well-balanced sound with a deep solid bass. The valve breaks up later than many others and in overdriven conditions results in a clearly defined creamy distortion. These characteristics make this the ideal valve in Fender amplifiers.

The problem that many players encounter when using a modern American voiced ceramic speaker in their Fender is that they can sound overly bright and harsh. The upper frequencies are very peaky and are too cutting especially when more gain is added .This results in a harsh almost brittle top which is not pleasing to listen too. A further issue with the Fender Blues Junior is that the standard speaker is very flabby and ill-defined in the bass response. This results in the loss of individual note separation and clarity.

The solution is the Harma G12 Clear Sapphire 50M 12 inch guitar speaker.
This is ideal in any amplifier that requires an American voiced speaker as it combines the
tight low end response of a 1960ís era British speaker with natural uncoloured top end clarity normally associated with Original 1960ís era American Alnico speakers.

The Harma Clear Sapphire will allow the natural sound of your amp and youíre playing come through. The tight bass end is complemented by a warm midrange which is smooth and retains that ceramic punch. It is in the upper mids and top end response that set this speaker apart from all the others. The careful selection of components means that this speaker has a natural non aggressive top end. The cap selection allows a balanced clear high treble frequency with the natural harmonics of the cone. This will allow you greater control over the EQ of your sound so you can colour the tone to suit your individual sound. The upper frequencies have a natural warm clarity and presence with even balance. It provides excellent string intonation for broken or double stops chords to make you chords ring.

The Harma Clear Sapphire as itís name suggests has a clear and natural top end, a warm smooth midrange and all the features that our customers wanted that was not available from any other manufacture. Indeed this was a speaker that I personally always wanted but could never buy. We have built a speaker which has the right balance of clarity and top end neutrality. The Harma G12 Bright Sapphire delivers these features that will enable you to create your own signature sound.

Here is what our customer Ian Secome said after fitting Harma Clear Sapphire in a Fender Dual showman head/Fender twin reverb.

ďSound wise, after about an initial 20 minutes of break-in, they start to reveal warm clear depth that Fender twin reverbs are renowned for. Once the speakers have been used for a couple of hours the amp felt more responsive, giving natural tone that one would expect from a vintage Fender amp. Tonally the Harma 12" ceramic clear can easily handle any style of music, they lend themselves to jazz/country for that super clean sound or with a tweak of the pre-amp can give that nice blues break-up that so many players spend thousands of pounds hankering after. For those that want a crystal clear warm vintage tone at any volume should look no further these speakers give a very good bass response without adding that Celestion midrange honk."


The kit consists of

2 Specially Selected Harma ECC83 STR
1 Specially Selected & Balanced Harma ECC83 STR for V3
2 Specially Selected and matched Harma EL84/E84L
1 Harma 12 inch Ceramic Clear Sapphire 8 Ohm speaker

Please note that this kit contains the valves and speaker only.



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