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Tron Seven

Phono Stages, Preamp,

DAC

Tron Syren

Preamplifier

Tron Discovery

300B power amp

Tron Telstar

211 power amp

Tron Reviews

 

TRON Seven Range

 

The Tron Seven series have been designed to provide unheard of performance for their prices. This has been achieved by Graham Tricker's very clever design and the use of very high quality parts in all critical locations and this really matters when it comes to performance.  No unnecessary facilities, connections, switch contacts, relays or other circuitry have been included so its all about achieving maximum performance to achieve the ultimate listening experience.

 

Seven Phono Stage

Seven Mono Phono Stage

Seven Step-Up Transformer

Seven Preamplifier

Seven DAC

 

 

TRON Seven Phono Stage : Standard Version and Reference Version

 

We are delighted to have discovered more sonically superb music tools, courtesy of the  TRON Seven phono stages.  We first heard about TRON from Jan Allaerts, then more news came in from Hongkong and the rest of the world.

 

We have tried and heard many phono stages - which we consider to be the most critical aspect of an analogue system, one that can be a serious sonic bottleneck if not chosen correctly - and we are pleased to note that the TRON Seven phono stage is a true reference against these others, irregardless of price. 

 

And we are just talking about the standard version of the TRON Seven, not the TRON Seven Reference version yet :).

 

No hype unlike many others which have built their reputation more through advertisements.  The TRON Seven came to us through respected manufacturer and user references, and it surely did not disappoint.

 

The TRON Seven  is a revelation.  A tube (valve) phono stage, we were pleased at its sonic neutrality - no syrupy, artificial tube warmth and cloying sound, but instead a natural sound where instrumental and vocal tonality are well-preserved.  Drums, high hats, bass are delivered with splendid articulation and detail, no rounding off of leading edges.  Micro and macrodynamics are rendered with ease. 

 

It reminds us of the outstanding Kondo Audio Note Japan quality, simply music from tubes without any of the unnatural colourations.  This is high-fidelity at its best.

 

Being on the side of natural tonality, what separates it then from a good neutral solid-state phono stage ?  The TRON Seven phono stage simply brings forth the qualities in tubes that solid-state have a hard time matching.  Examples are bigger and wider soundstage, with easily heard layers and layers of soundstage depth, fabulous air and detail, without bordering on merely white noise.

 

The TRON Seven Reference phono stage version has much better quality and better sounding parts fitted in. This gives a much more natural and organic sound, and even more refinement.

 

"The Seven Phono is a new design with many unique design features. Like all Tron products it relies on the vacuum tube for providing amplification.

 

I am not going to extol the virtues of this method of amplification over solid state but I have found it to produce the most natural presentation of recorded music. I guess that's why all the top musicians still use valve amps for recording and why recording engineers still use valve/tube microphones when recording.

 

I have kept the stages in the Seven to an absolute minimum and have selected valves/tubes that are easily obtainable, giving the potential owner the option of using his or her favourite brand.

 

The Seven can come set up either for moving magnet or moving coil cartridges.

 

The output stage is a very low impedance high current design, which enables it to be used with any pre-amp designs, whether a low impedance solid state design or even a transformer type volume control.

 

Ultimately the proof is in the listening."

 

- Graham Tricker, maker and designer

Specifications:

High quality aluminium chassis finished in black.

 

1.  Gain

The Seven phono stage option has 2 levels of low output MC gain:

Normal Gain - for cartridges with an output of 0.2mV to 0.7mV (60 to 65db)
 

High Gain - for cartridges with an output of 0.1mV to 0.2mV (approx. 70db)

 

Highest Gain - for ultra low gain cartridges like Jan Allaerts MC2 Finish or Formula 1 cartridges (approx. 80db)

 

The Normal Gain version covers 95% of today's MC cartridges.  Either of the above options can be specified at the manufacturing/ordering stage.

 

 

2.  Input

The TRON Seven phono stage comes with one input as standard.  A dual input version is also available on order and slightly additional cost.  This way, an owner of two tonearms, or two turntables, can switch between 2 phono inputs.  The switch sits between the 2 sets of silver RCA's and just toggles left for the 1st input and right to switch to the 2nd input.  Only for low output MCs.

 

 

 

3.  Upgradeability

A TRON Seven phono stage may be upgraded to the TRON Seven Reference phono stage by simply paying the difference in retail price, plus shipping.

 

4.  Tubes (Valves)

     2 x 12AX7 as standard signal tubes, 1 x 12AU7

     - The 2 x 12AX7 may be substituted for 2 x 5751 for 30% less gain

     - The 2 x 12AX7 may be substituted for 2 x 12AY7 for -10db gain

 

 

5.  Loading

The TRON Seven phono stage AC couples the cartridge to the phono stage. In other words there is no harmful resistor sitting across the coils of the cartridge which heavily influences the sound of the cartridge.

 

Instead the cartridge delivers it full performance straight into the 1st stage of the Seven. Evan other manufacturer users will confirm it makes no difference to the sound if the loading is changed on the Seven.  There are no internal settings to adjust or to set.  It is just simply plug it in and switch it on.

 

 

6.  With a turntable

An extra 4mm earth socket can be fitted on the rear of the Seven (Syren also).  A lead wire can then be plugged or attached into the bearing of a turntable, if possible.  This then connects to the new earth terminal on the Seven and earths the turntable's bearing. This makes an audible improvement which is clearly heard. Also it lowers the record surface noise plus it reduces the clicks and pops from static on the record. 

 

In Graham's own words - "It's just another thing we can do to push the boundaries back a bit further."    Such dedication is commendable.

 

Tron Seven Reference Phono Stage

 

An already superb product just got even better ... new updates, and a new faceplate logo

Tron Reference Phono Stage

Tron Reference Phono Stage Tron Reference Phono Stage
 

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TRON Seven Mono Phono Stage

The Tron Seven Mono phono stage shares similar features and specifications to the standard stereo Seven phono stage mentioned above, except that the Seven Mono has  been designed to extract the most from Mono recording and Mono cartridges.

 

It has 3 user switchable equalisation's on the front panel (RIAA, CCIR and FFRR) as well as a mute switch.

 

It also eliminates the hum normally experienced when connecting a mono cartridge to a stereo phono stage.

 

There are other optional equalisation's that can be accommodated in place of the above and as long as we know what a customer wants and Tron can build it in.

For example, if a customer has a large collection of mono Columbia recordings then Tron can substitute one of the existing EQ's with the Columbia version.

 

All EQ's are relay switched so this keeps the signal path very short indeed.

 

Gain is the same as with the normal Seven phono, and can be specified upon order : 45dB (MM), 60dB MC, and 66dB for low output MC.
 

Loading: 47K (MM),  470ohms for 60dB option, and 115ohms for the 66dB option.

Tron Seven Mono Phono Stage

 

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TRON Seven Step-Up Transformer

The Tron Seven Step-Up Transformer is a passive design. 

 

For users who with separate MM only phono stages or built-in MM only phono stages, one can now play low-output MC cartridges at an affordable way.

 

For users with MM/MC phono stages who would like an upgrade to the Tron quality, the Tron Step-Up transformer is available.

 

For users who want to use two tonearms without the hassle of unplugging and reconnecting cables, the Tron Step-Up transformer accepts two inputs.

Specifications:

 

• 1 Output, and 2 Inputs allowing two tonearms to be used

• The step up is purely passive and uses step up transformers

• Gain can be configured upon order for 20db or 26db

• Loading is 470ohm for 20dB gain and 115ohm for the 26dB gain

• The transformers used in all Tron equipment are all custom made especially

      for Tron according to Tron's specifications

 

Tron Electric Step Up

 

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TRON Seven Preamplifier

Tron Seven Preamplifier

SPECIFICATION:

 

High quality aluminium chassis finished in black.

Valve complement: 2 x 12AU7

Inputs: 5 input (RCA)

Outputs: 1 Line output (RCA)

 

The TRON Seven Line preamplifier is a new design with many unique design features.  

 

Like all Tron products it relies on the vacuum tube for providing amplification.

 

Graham Tricker has kept the stages in the TRON Seven preamplifier to an absolute minimum and has selected valves/tubes that are easily obtainable, giving the potential owner the option of using his or her favourite brand.

The Seven line stage comes with 5 RCA inputs, mono/stereo switch, mute switch, earth lift switch, silver RCA sockets, non ferrous case and it is all made in the UK. It also has fitted a very high quality Elma selector switch and a close tolerance Noble volume control.

The output stage is a very low impedance high current design, which enables it to be used with any power-amplifier designs, whether a low impedance solid state design or a valve amplifier.

Tron Seven Preamplifier

Silver Plated RCA connectors

 

Tron Seven Preamplifier

 

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TRON Seven DAC

To be launched early 2008.

 

Like all Tron products it relies on the vacuum tube for providing amplification.

 

This will be a filter-less DAC. Apart from the normal SPDIF connection (RCA and XLR), it will also have an option of a USB connection so it can be used with a music server.

 

SPECIFICATION:

High quality aluminium chassis finished in black.

Valve complement: 2 x 12AU7

Inputs: 1 Digital (coax/RCA)

Outputs: 1 Line output (RCA)

TRON Seven DAC

 

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Back to Main TRON Page

Tron Seven

Phono Stages, Preamp,

DAC

Tron Syren

Preamplifier

Tron Discovery

300B power amp

Tron Telstar

211 power amp

Tron Reviews

 

 

Seven Phono Stage

Seven Mono Phono Stage

Seven Step-Up Transformer

Seven Preamplifier

Seven DAC
 

 

 

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