Summer Sale

Hi!

There is still too much equipment in the shop and I need to make room so I can build new stuff. All this gear is in perfect working condition. Some show some wear from the usage some are pristine. See individual descriptions for details. All units are set for 230V mains voltage. 

I can ship world wide. If you are interested in a unit please ask for a shipping quote to your country. I have plenty experience in international shipping and pack very safe. However please note that import duties might apply if you are outside the EU. But therefore every sale outside the EU is VAT free.

Each unit will be equipped with new tubes, tested and matched. Each unit will have warranty backed up by me.

This is your chance to grab one of these at a bargain price!

Here are the individual pieces:

A Compactron preamplifier. This is a full function preamplifier with phono stage integrated (MC)

In addition there is a balanced input and two line inputs.

This unit is in pristine condition

Sale price : 12.000,- Euros (10.084,- export). The list price this configuration would be 16.250,- 

More info on this particular unit can be found here: Compactron preamplifier

This preamp is the perfect match for the Compactron Stereo power amp which is also on sale:

This is a single ended power amp with about 7-8W per channel. Interstage transformer coupled. Tube rectified power supply.

The output is rated for 8 Ohm speakers. The condition is pristine.

Sale price : 8.000,- Euros (6.220,- export). List price 10.500,-

An additional discount can be offered if you get both the preamp and power amp.

More on the Compactron line up in general can be found here. 

Not enough power from the Stereo amp? Get these monos:

A solid 15W per channel, 8 Ohm. Parallel Single Ended.

Condition is a bit funky, the black top lid is quite sensitive and has some blotches.

More info about these in this blog post.

Therefore only 11.000,- the pair (9.240,- export).

Next something truly special, the first version of the Intrepid line preamplifier.

All silver differential design with 801A directly heated triodes,

Silver output transformers, silver plate chokes, silver input transformers (16 silver pieces total)

4 XLR inputs each set for different gain. More details here.

Sale price 55.000,- Euros (export 46.200)

Can't afford the Intrepid line? Maybe this is for you:

A 6J5 Line preamplifier. Transformer coupled and with transformer volume control.

Tube rectified and choke loaded power supply. 3 Line inputs.

More details here. Built in 2016. Trade in from a customer who upgraded to the 10Y line. Top notch condition

*** SOLD ***

Next a 3 chassis DAC with DHT transformer coupled output. Silver transformers!

Used as demo unit only. Some signs of wear.

Coax and USB input. RCA and XLR outputs. More details here.

Sale price 17.500,- Euros (export 14.700)

And lastly I have some power amps to offer. The first is a set of single ended 845 mono blocks with 887 driver.

Each mono block has a separate power supply. So 4 chassis total.

The custom made Elrog ER887 is transformer coupled to the ER845 output tube. 25W per channel

Spare sets of ER887 and also ER845 can be purchased with the amp.

The power supply uses Elrog ER274A and 6AU4 rectifiers. Spare ER274A also available on request .

Good condition, but one of the wooden frame is slightly lighter in color. Barely noticeable. Used as demo units and for audio shows. More info here.

Sale price 38.000,- Euros (export 31.900). The price is for the set of 4 chassis including all tubes.

If you are able to pick these up personally and I do not have  to provide the wooden shipping crates I am able to offer a good discount.

And lastly a stereo 2A3 single ended amp.

Interstage transformer coupled. 6J5 or 6n7 can be used as driver. Full wave bridge with 4 6AX4 tubes in the PSU. Extensively choke loaded power supply. 3.5W per channel, 8 Ohm.

*** SOLD ***

That's all I have as demo units. I am open to reasonable offers if you take more than one unit or if you can pick up personally and I don't have to ship. But of course I can ship world wide. Please understand no modifications at these prices. Email me if you have any questions. I guarantee that you will be happy with any purchase or I offer money back.

Best regards

Thomas

Happy New Year!

Hi!

Another year is ending and times are changing.

You probably noticed a reduced number of posts on my blog during the recent months and exactly one year ago I posted the very last tube of the month article. Times are changing and blogs are not catching as much attention as they used to. I already started posting on Facebook in parallel many years ago and more often than on my blog. This year I also finally registered on Instagram and started posting there.

So this is probably my last blog post for a while. If you want to get updates about my work in electron tube electronics, follow me on Facebook and Instagram (see previous post for a link).

Wishing your families and yourself all the best for 2025

Thomas

Follow me on Instagram

Hi!

For more frequent posts and also some non-audio related stuff you can follow me on Instagram.

@thomasmayerlindau

Best regards

Thomas

Demo Equipment Sale

*** UPDATE : Sold items are marked accordingly ***

*** Price reduction on some units ***

Hi!

During the last year I developed some new lines of electronics which resulted in a lot of demo and prototype units. These served mainly to launch the new products at the High End show in Munich. As last year I am offering some of my demo units at a bargain price to make room.

Here we have 5 Compactron units and the prototype Intrepid linestage. These have only been used by me in my workshop or at the Munich High End. All units are in excellent condition with occasional minor marks. Detailed photos are available in case of interest. Each unit is functionally 100% working, tested and comes with warranty.

Of course each unit is equipped with tubes and accessories will be included as with a new unit. The feet are exchangeable and can be chosen between pointy, straight sided or tapered. Besides that no changes possible.

I can ship worldwide. The exact shipping cost will be quoted in case of interest. Personal pick up with previous listen test can be arranged too. In case of pick up I can offer some discount.

And most importantly: Money back guarantee. I will accept returns within 2 weeks of receipt of the units and reimburse the payment, less the shipping cost. 

The regular sale prices and specs can be found on my product site.

This is a Compactron Integrated Amplifier. Click here for a detailed description of this unit.

*** SOLD ***

This is a Compactron DA-Converter Click here for a detailed description of this unit.

Not available any more. I decided to keep it as demo unit since it is the only single chassis DAC I have in the moment.

Another Compactron DA-Converter Click here for a detailed description of this unit.

*** SOLD ***

Transformer volume control Compactron Linestage Click here for a detailed description of this unit.

*** SOLD ***

This is a Compactron phono stage  Click here for a detailed description of this unit.

*** SOLD ***

Next we have something truly special, the prototype of the Intrepid line stage, in this case still named 10Y Line Preamplifier. This comes with all the goodies of the Intrepid series, all silver transformers, chassis milled from solid blocks, in this case with glass pearl blasted surface. Comes with a matched quad of Elrog ER801A tubes, but can be ordered for other tubes as well.

Click here for more details on this particular unit.

Sale price within the EU : 55.000,- Euro (incl. VAT) , export price outside EU without VAT : 46.200,-

This is an exceptional line stage capable to transform an entire system to another level. 

I also have two units in the classic chassis style:

First is the 6J5 line preamplifier which I already offered in last year's demo equipment sale . Last year I expected this to be sold the quickest, but surprisingly it was one of the few items unsold.

Details here. 

Sale price within the EU : 4500,- Euro (incl. VAT) , export price outside EU without VAT : 3780,-

This DAC was sold during last years sale, but due to some incompatibility issues with the buyer's media server I took it back. This unit is using silver output transformers.

Sale price within the EU : 17.500,- Euro (incl. VAT) , export price outside EU without VAT : 14.700,-

That's all I have on offer right now. Contact me for any questions or a shipping quote. I am open to reasonable offers if you are picking up personally or buying several units.

Best regards

Thomas

Four Channels of Single Ended 300B Power

Hi!

Here are some impressions of two new Stereo 300B power amplifiers.

Although built as stereo amps the intended use is in an active speaker set up to power mid range and highs.

The driver tubes are 6DN7.

A few impressions from the assembly. Since the amps are meant for mid and high range duty only, I used the Tango M757 output transformers which are optimised for that frequency spectrum.

 

However the amps measure well down to 20Hz (-3dB) so can be used as full range amps too.

The completely assembled amps are tested before they get the final enclosure:

The finished amps before delivery:

The amps are used with Elrog tubes but of course they work with any 300B compatible tube type.

With the permission of the owner of these amplifiers I took a few photos of his system when I delivered them.

The speaker set up was custom made by outsider, a german company which was quite well known in the scene during the 1980ies. But unfortunately they do not exist anymore.

Expolinear ribbons and Görlich chassis.

The left side is equipped with TM300B and powers the midrange. The tweeter side uses a regular ER300B.

The custom made active crossover between two outsider amplifiers powering the bass.

And for the lowest bass tones an active mono sub. Quite a complex system which evolved over decades and plays at an extremely high level. The sub is well integrated and the system reproduces the entire frequency spectrum effortlessly with tons of resolution and nice tone colors.

The gentlemen who owns this system is a man of exquisite taste and he knows how to achieve good sound. I am proud that he chose my amps, a Compactron preamplifier and two D3a phono stages for his system. The Compactron preamp is on loan until a dedicated new unit for this system is finished. The new one will have all balanced XLR inputs to accommodate the sources which all offer XLR outputs.

The two cartridge which are in use each got their own separate phono stage. A Kiseki and a Top Wing Red Sparrow.

The turntable is a custom creation also by the outsider team.

And to round all up there is also a Studer reel-to-reel. So of course the final Preamplifier will come with a tape loop.

I'd like to thank Fritz and his wife Rita for allowing me to share these impressions and for the hospitality whenever I deliver a new toy.

I hope you enjoyed this post with the home story of the owner.

Best regards

Thomas