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post #2416 of 3704
Quote:
Originally Posted by bmichels View Post
 

Hello SPKRS01, did you received your Cavalli LAu ?  how does it sound ? :-)

 

Hello

 

Apologies for the late reply. Yup it was returned last Saturday. A fast 9 Days turnaround from HK to Texas to HK. Awesome customer's service from Alex at Cavalli. 

 

I have been literally listening non-stop.....Sensational sounding especially with the Abyss. I have not heard any of the Stax headphones yet, and may change my feelings further down the road! But in concert together, the LAu and Abyss sets new levels of sonic bliss for personal audio. I have been looking at ways to further improve my desktop system and yesterday decided to buy the Isotek Evo3 Aquarius power conditioner. I chose this model as it works passively because I find most active ones rather artificial sounding. 

 

In Hong Kong, many die hard audiophiles shoe horn 300k to half million home system into a 120-200 sq. ft room and make it sound good. The LAu and Abyss is very reminiscent of these systems, less the visceral impact.

 

Very happy indeed thus far, and worth every penny................. 

post #2417 of 3704

not that actively posting these days, but constantly listening to music and enjoying my tu-05.

 

even after buying some good tubes for my Cayin HA-1A (Philips Jan 5751, Lorenz ECC82, Sovtek EL84M) i must say that the TU-05 plays in another leaque.

 

The Cayin HA-1A is a real versatile amp, fitting all impedances, nicely build, easy to mod, loudspeaker terminals, soundwise really nice sounding, much better bass impact and depth, but if you then listen to the tu-05, the tu-05 is much more spacious, clean and clearer sounding, airy, much better soundstage width and depth, NO hiss and hum, greater separation, imaging and fine detail, much more realistic.

 

not to speak about tube prices for ecc82, ecc83, el84 :mad:

 

i am sure that the new output transformers i just sent out the specifications to get an offer from a specialized one man german company are not only a great general improvement but also an improvement for bass impact and depth.

 

Also the new transformers support 300 and 600 Ohm impedance headphones (hope there is enough output power) and also have an additional second output for line out 2V pp.

 

Just some samples of these handmade transformers:

 

Speaking of transformers, i think of buying input transformers to be used as attenuator instead of the potentiometer (i think this is what also shikada san ment and XPLOSIVE asked for an explanation when comparing voltage based (i.e. potentiometer, resistor, voltage divide) and current based (transforms changes of current) attenuators):

 


These are SILK Input transformers, they have 23 steps from about -50dB to 0dB and an additional +6db amplification primary input, should sound sensational, but about 400 Euros a pair.

 

i spent a lot of time to buy all the equipment and parts for my tu-05 "big" mod:

 

My 2 channel 20 Mhz oszilloskop:

Processed By eBay with ImageMagick, R1.1.1.M2a

Processed By eBay with ImageMagick, R1.0.1.M2a

 

My Audio Signal Generators:

 

Processed By eBay with ImageMagick, R1.1.1.||B2||T0JKX0lEPTRmNjc4MmQ3YTc0NzI0ODAwNTFkMmEwYTQ4NjU3MzA1MjQ4OTc5ZWQxNzE2fHxPUklHSU5BTF9FQkFZX1FVQUxJVFlfU0NPUkU9NHx8Q1JFQVRJT05fREFURT0xMC80LzEzIDEyOjU4IFBN

 

i love this vintage equipment, much better usability than this digital stuff, but of course not that precise!

 

Processed By eBay with ImageMagick, R1.1.1.M2a

 

Analog Multimeter:

 

 

My Power Supply Units:

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

This is stabilized power supply unit up to 2 ampere 60 volt, 60 volt is very usefull if working with tubes.

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

this is a very usefull vintage east German toroidal core control transformer that delivers 4 ampere 0 to 15 volt AC and DC voltage, great for testing filament / heating voltage stabilizer circuits and boards.

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

And i have two of this amazing Heinzinger stabilized HIGH VOLTAGE power supplies with up to 1200 DC Volt 100 mA / 120 watt !

 

Great for testing new tube amplifier stages directly supporting adjustable bias grid and anode voltages, BUT VERY DANGEROUS, can kill you, use this kind of power supply only in conjunction with a protection circuit that automatically switches off any power in the case you get in contact with it (in German language - Fehlerstromschalter).

 

Ultra fine Soldering iron:

 


Edited by GermanGuy - 10/12/13 at 10:49am
post #2418 of 3704

Other parts i bought for testing, prototyping, building components:

 

PCB's:

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

Processed By eBay with ImageMagick, R1.1.1.M2a

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

Processed By eBay with ImageMagick, z1.1.0. ||B2

 

These are very nice tube protoyping boards to build and test tube pre amplification and amplification stages. i bought four of them to rebuild two df91 and two dl92 stages to test alternative internal power supply boards:

 

Processed By eBay with ImageMagick, R1.1.1.M2a

 

Internal power supply boards - DC-DC converter i bought:

 

all the boards work with the internal 7.4 volt battery power.

 

The first one can be adjusted to 1.25 or 1.4 volt for filament / heater voltage for the df91 / dl92 tubes but also for example for the 1.25 volt ones like tesla 1f34 (i bought two of them):

 

Processed By eBay with ImageMagick, R1.1.1.M2a

 

This one is a combined Step Up / Step Down DC-DC converter board that delivers an adjustable voltage independent of the input voltage, up to 3 ampere. i will use this board as internal charger board for the tu-05, so the tu-05  8.4 volt charging voltage is provided by just connecting the tu-05 to any voltage between 3.5 and 30 volt, so you can use the car charger that was delivered with the tu-05, but also an USB port, a 1.5 Volt battery, a solar panel or whatever to charge the tu-05! (i bought two of them):

Processed By eBay with ImageMagick, R1.1.1.M2a

These boards are DC-DC Step-Up converter providing up to 42 volt, so can be used for the grid bias and anode voltages as i bought 3 of them (3x42v = maximum of 126 volt):

Processed By eBay with ImageMagick, R1.1.1.M2a

Some spacers:

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

8mm x 8mm heat sinks to cool the dc dc converter circuits:

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

Switches:

 

This is a very expensive (about 30 Euros) KNITTER Rotary Switch with 2 contacts 5 switch positions, silver switch contacts , up to 125 volt AC 0.5 ampere, will be used as input and impedance switch:

mini switch with silver switch contacts for general settings (power on/off, light, VU meter average/peak ...):

Another switch with silver contacts as rear mount impedance / output switch:

 

After buying all these components i found a US company specialized in High Voltage dc/dc converters, so i will buy their components for filament / grid bias / anode voltage power supply. These amazing converters provide 0 up to 3000 volt DC !!

 

the first dc/dc step down converter is a ultra precise filament / heater adjustable power supply:

This one is a adjustable grid bias voltage dc/dc converter i eventually  will use for the anode and grid voltage of the dl92's. The tiny size is amazing (just 1 x 1 x 1 cm) (100 mW output):

 

This is the 1 watt version for the anode grid 67.5 , 90 volt DC power:


Edited by GermanGuy - 1/25/14 at 12:49pm
post #2419 of 3704

Anyone speculate there would be a chance of gold TUR-06 or just focussing on production right now?

post #2420 of 3704
the housings are made to order, so i would at least ask asap.
post #2421 of 3704

No rush. Got a pay rise and things a bit manic until after xmas. Am waiting for Can Jam to be over and then assessing saving goals

post #2422 of 3704

to xplosive - some links:

 

ianmediums index post  (page 1, post #3) with a lot of links to articles, tube combos and modifications:

 

http://www.head-fi.org/t/632518/analog-paper-2-discussion-and-appreciation-thread#post_8794450

 

the last index page i made for my posts a while ago can be found here:

 

http://www.head-fi.org/t/632518/analog-paper-2-discussion-and-appreciation-thread/1440#post_9670023

 

My updated (only) tu-05 tube compatibility list, also added some explanations:

 

http://www.head-fi.org/t/632518/analog-paper-2-discussion-and-appreciation-thread/1875#post_9757745

 

tube cleaning kit:

http://www.head-fi.org/t/632518/analog-paper-2-discussion-and-appreciation-thread/630#post_9573905

tube cleaning kit distribution:

http://www.head-fi.org/t/632518/analog-paper-2-discussion-and-appreciation-thread/1245#post_9649904

post #2423 of 3704
Quote:
Originally Posted by spkrs01 View Post
 

 

Hello

 

Apologies for the late reply. Yup it was returned last Saturday. A fast 9 Days turnaround from HK to Texas to HK. Awesome customer's service from Alex at Cavalli. 

 

I have been literally listening non-stop.....Sensational sounding especially with the Abyss. I have not heard any of the Stax headphones yet, and may change my feelings further down the road! But in concert together, the LAu and Abyss sets new levels of sonic bliss for personal audio. I have been looking at ways to further improve my desktop system and yesterday decided to buy the Isotek Evo3 Aquarius power conditioner. I chose this model as it works passively because I find most active ones rather artificial sounding. 

 

In Hong Kong, many die hard audiophiles shoe horn 300k to half million home system into a 120-200 sq. ft room and make it sound good. The LAu and Abyss is very reminiscent of these systems, less the visceral impact.

 

Very happy indeed thus far, and worth every penny................. 

 

Very exciting !!  And could you tell us what Source & DAC are you using with the Cavalli + Abyss ? I guess this combo do not tolerate average sources/DAC ! :D

post #2424 of 3704
Quote:
Originally Posted by bmichels View Post
 

 

Very exciting !!  And could you tell us what Source & DAC are you using with the Cavalli + Abyss ? I guess this combo do not tolerate average sources/DAC ! :D

 

I am actually looking to add a Lumin Music Player   http://www.luminmusic.com/index.html  which will allow DSD

 

But at present, and I use the same upstream to source the TU-05:-

 

Sony L > Jriver MC19 > Fidelizer > HEX Dac with around $35K of cabling plugged into the system.................

post #2425 of 3704
Quote:
Originally Posted by spkrs01 View Post



Sony L > Jriver MC19 > Fidelizer > HEX Dac with around $35K of cabling plugged into the system.................


biggrin.gif Just as every audiophile worth his or her salt would do! biggrin.gif
post #2426 of 3704

I have had many friends who has listened to my RWAK120-S /TU-05 and their only comment is that they never experienced / heard anything like it. A Portable/Transportable system that can sound so great. A few have proceeded ordering the RWAK120-S / TU-05. 

 

In fact, being totally honest here, The RWAK-S / TU-05 was the reason that I had to overhaul completely my desktop rig, as sonically it was getting too close in performance........

post #2427 of 3704
Quote:
Originally Posted by GermanGuy View Post
  Warning: Spoiler! (Click to show)

not that actively posting these days, but constantly listening to music and enjoying my tu-05.

 

even after buying some good tubes for my Cayin HA-1A (Philips Jan 5751, Lorenz ECC82, Sovtek EL84M) i must say that the TU-05 plays in another leaque.

 

The Cayin HA-1A is a real versatile amp, fitting all impedances, nicely build, easy to mod, loudspeaker terminals, soundwise really nice sounding, much better bass impact and depth, but if you then listen to the tu-05, the tu-05 is much more spacious, clean and clearer sounding, airy, much better soundstage width and depth, NO hiss and hum, greater separation, imaging and fine detail, much more realistic.

 

not to speak about tube prices for ecc82, ecc83, el84 :mad:

 

i am sure that the new output transformers i just sent out the specifications to get an offer from a specialized one man german company are not only a great general improvement but also an improvement for bass impact and depth.

 

Also the new transformers support 300 and 600 Ohm impedance headphones (hope there is enough output power) and also have an additional second output for line out 2V pp.

 

Just some samples of these handmade transformers:

 

Speaking of transformers, i think of buying input transformers to be used as attenuator instead of the potentiometer (i think this is what also shikada san ment and XPLOSIVE asked for an explanation when comparing voltage based (i.e. potentiometer, resistor, voltage divide) and current based (transforms changes of current) attenuators):

 


These are SILK Input transformers, they have 23 steps from about -50dB to 0dB and an additional +6db amplification primary input, should sound sensational, but about 400 Euros a pair.

 

i spent a lot of time to buy all the equipment and parts for my tu-05 "big" mod:

 

My 2 channel 20 Mhz oszilloskop:

Processed By eBay with ImageMagick, R1.1.1.M2a

Processed By eBay with ImageMagick, R1.0.1.M2a

 

My Audio Signal Generators:

 

Processed By eBay with ImageMagick, R1.1.1.||B2||T0JKX0lEPTRmNjc4MmQ3YTc0NzI0ODAwNTFkMmEwYTQ4NjU3MzA1MjQ4OTc5ZWQxNzE2fHxPUklHSU5BTF9FQkFZX1FVQUxJVFlfU0NPUkU9NHx8Q1JFQVRJT05fREFURT0xMC80LzEzIDEyOjU4IFBN

 

i love this vintage equipment, much better usability than this digital stuff, but of course not that precise!

 

Processed By eBay with ImageMagick, R1.1.1.M2a

 

Analog Multimeter:

 

 

My Power Supply Units:

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

This is stabilized power supply unit up to 2 ampere 60 volt, 60 volt is very usefull if working with tubes.

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

this is a very usefull vintage east German toroidal core control transformer that delivers 4 ampere 0 to 15 volt AC and DC voltage, great for testing filament / heating voltage stabilizer circuits and boards.

 

Processed By eBay with ImageMagick, R1.1.1.M1

 

And i have two of this amazing Heinzinger stabilized HIGH VOLTAGE power supplies with up to 1200 DC Volt 100 mA / 120 watt !

 

Great for testing new tube amplifier stages directly supporting adjustable bias grid and anode voltages, BUT VERY DANGEROUS, can kill you, use this kind of power supply only in conjunction with a protection circuit that automatically switches off any power in the case you get in contact with it (in German language - Fehlerstromschalter).

 

Ultra fine Soldering iron:

 

 

 

 

GG

 

I am now wondering why you do not make your own amplifiers. I for one, will buy one! The stuff you are posting, and what you are doing to the TU-05 is CRAZY impressive.

 

Good luck and continue updating us which means STOP listening to music :bigsmile_face: 

post #2428 of 3704
Quote:
Originally Posted by spkrs01 View Post

I have had many friends who has listened to my RWAK120-S /TU-05 and their only comment is that they never experienced / heard anything like it. A Portable/Transportable system that can sound so great. A few have proceeded ordering the RWAK120-S / TU-05. 

In fact, being totally honest here, The RWAK-S / TU-05 was the reason that I had to overhaul completely my desktop rig, as sonically it was getting too close in performance........

I have had the same reaction from friends with home based systems north of 100K. The simply are amazed at how far portable audio has come, they never took it seriously until hearing my set up.
Quote:
Originally Posted by spkrs01 View Post

GG

I am now wondering why you do not make your own amplifiers. I for one, will buy one! The stuff you are posting, and what you are doing to the TU-05 is CRAZY impressive.

Good luck and continue updating us which means STOP listening to music bigsmile_face.gif  

I am very much looking forward to GG's amp, looking at his Grado mod I think it will prove to be very exciting!
post #2429 of 3704
Quote:
Originally Posted by ianmedium View Post


I have had the same reaction from friends with home based systems north of 100K. The simply are amazed at how far portable audio has come, they never took it seriously until hearing my set up.
I am very much looking forward to GG's amp, looking at his Grado mod I think it will prove to be very exciting!

 

Yes

 

Also as IEMs are innately so intimate and detailed comparatively, all I see is grins and smiles and that it is so fun to watch the expressions..................absolutely priceless!!

 

Totally agree concerning GG's future offerings............. 

post #2430 of 3704

Hello GG thank you very much for the explanation of input attenuator and the link. Really appreciate it. And I am speechless with your tu05 modyfing effort.. You are really a rocket scientist in this..

 

Talking about high end speaker set up, couple days ago I was invited by my friend listening his home system set up. He is been using wilson audio wamm speakers with his dedicated audio room. And wow it was an amazing experience. He is using a vinyl recording as the source. We listened to many records, but there are some records that really stay in memory,  Monty Alexander trio live classic recording, Ingram Washington, Hotel California live performance and Pink Floyd album.

 

The vocal so thick end very well textured, every instrument are very deep, well textured, very high resolution as well. No detail is loss and perfect staging from the his dedicated room.. Everything are like new experience for me.

 

So how my portable tur06 compare to his home set up? It actually holds up quite well.

For 1/100+ price ratio I think it is very good bargain for money. I think what it lack is the vinyl source as for the resolution and the wide stage of home speakers. To get home speakers kind of detail sound I have to turn the volume up and that is not good for the ears.. :D

 

This is my best set up so far..

 

In term of resolution marshall 50fx is behind the ath11, but it gives thicker vocal, and wider stage with much better Visceral Impact, Rhythm and Pace. I can bump up the volume more without piercing my ears. It really does sound very good to my ears. Give me the experience of listening to the home speaker set up. It is loud and rocking..

 

Happy Sunday! Cheers!

 

Updated impression: after more time spend listening, my current best headphone setup back to the ath esw11 ltd.. the flirty vocal is really hard to let go.. I have also tried with earsonic sm64, It also makes a great pair. overall sm64 provides more refine sounding. But somehow it is missing something.. not as lively as when i listening to my esw11. I guess I have not find the perfect match headphone for my tur06.. tonight i am going to local jaben, hoping able to compare with other amp and audition some new headphones with the tur06..


Edited by xplosive - 10/18/13 at 3:00am
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