Posted on Monday, 19th September 2011 by Auw Jimmy

Last week, we held a simple DIY Blind Test session. The contenders were all Class A amplifier (we can see F5, J2, Aleph, TUMOS, and some others…)

This was a hot session. Not just because the contenders were very good and serious, but the Class A itself means high current (=hot) and big heatsink (=heavy). So? You can imagine the rest

Below is the preparation of the session. The speaker was DIY 3-way with Vifa driver (XT25, P17, and PL26). The CD Player was CEC, while the Preamp was Aikido. Enjoy some photos below!

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Tags: Aleph, Amplifier, Blind Test, Class A, F5, J2, TUMOS
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Posted on Sunday, 30th January 2011 by Auw Jimmy

Indonesia High End Audio Club or in short, IHEAC, held an blind test (or maybe I would prefer to call them as blind scoring) for tube pre-amp. The session was  started on the afternoon, around 11am. Some equipment used shown below.

We can see some stuff like Quadral Platinum M4 speaker, Consonance Droplet CD Player, Air Tight Reference Pre-Amp ATC-3, and KT88 tube amplifier (I believe in Push Pull configuration).

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Tags: Blind Test, iheac, pre amp, Pre Amplifier, preamplifier
Posted in DIY Audio, Indonesia | Comments (3)

Posted on Sunday, 1st August 2010 by Auw Jimmy

Last week, we have a local DIY audio gathering at Bintaro (Indonesia). I took some photo, hope these could inspire us (DIY) more in the future. Sorry I didn’t “remember” all the equipments in detail. So most likely, you will enjoy the photos without caption.

The overall look of the stage, used for the testing.

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Tags: Bintaro, Blind Test, Gathering
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Posted on Wednesday, 24th February 2010 by Auw Jimmy

Last week, we held a DIY gathering. Located at Bintaro, Indonesia. The host was Mr. Didik F. Wiryawan and family. Around 30+ people were there, was one of the crowded gathering ever. Below is the picture of the stage. We held some Blind Test also. You will also see some fancy DIY creation here.

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Tags: Blind Test, DIY Audio, Indonesia
Posted in DIY Audio, Indonesia | Comments (17)

Posted on Sunday, 19th April 2009 by Auw Jimmy

It’s time for Single Ended amplifier benchmarking session. Located at Bakmi Margonda, Sarinah, Indonesia.

Here is some shoot from the event. The system was very simple, Tannoy speaker, Audio Aero Capitole CDP, and AirTight 300B as Reference Amplifier.

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Tags: Amplifier, Blind Test, single ended, tube
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Posted on Tuesday, 31st March 2009 by Auw Jimmy

It was a nice session at DWA’s house located at Bintaro. We held a long session, from morning to night, from amplifier, preamp, DAC, to speaker. The event was started with a lunch ;)

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Tags: Aikido, Audio, Blind Test, clio, gainclone, solid state, speaker
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Posted on Sunday, 8th February 2009 by Auw Jimmy

It was a nice day, a little bit rainy at the morning. I went to Bintaro (Mr. Didik home) to enjoy a Solid State Blind Test session. After around 1.5 hours traffic, finally I arrived there.

We used equipments as follow:

• NAD C542 CD Player and Aico top loading DVD Player (with External DAC)
• Aikido 6CG7/6072 Pre-amp
• DIY 3-way speaker (Woofer PL26, Mid P17, Tweeter XT25TG)

The contenders (first session)

• Unknown from Bandung (Mr. David SKP)
• LM3886 (Mr. Ado Bekasi)
• LM1875 Balanced (Mr. Ara)
• LM1875 Buffer 12SL7 (Mr. Budiarto W)

The contenders (second session):

• Lucky13 LM3886 (Mr. Dino Ary)
• LM3876 Buffer Nelson Pass (Mr. Dino Ary)
• MOSFET IRF (Mr. Ado Bekasi)
• MOSFET MP50Di (Mr. Didik WA)
• LM1875 Stasiun Bekasi (Pak Praka N)
• LM1875 Sentul (Pak Aip N Sentul)

It was a long sesssion. Although the session was ended at around 17:00, we still continued with some extra session, like loudspeakers and Pre-amp testing. We finally ended the session at 21:00.

Here is some photos. Enjoy!

“Filled the tank” before we started the session.

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Tags: Audio, audiophile, Blind Test, DIY-Audio, gainclone, LM1875, LM3875, MOSFET, pre amp
Posted in DIY Audio, Personal | Comments (2)

Posted on Sunday, 7th December 2008 by Auw Jimmy

Last week, located at Audio Lifestyle Magazine office (also known as TubeLover showroom), held a Pre Amplifier Blind Test Session. If I could recall my brain correctly, we have 38 contenders, from Aikido 6SN7 Pre Amp, to antique #26/#27 Pre Amp. Well it was so nice and crowded session, from 10 am to 10 pm. Over 12 hours, 8 preliminary sessions (5 Pre Amp each) + 1 final session. I was sooo tired to judge in all those sessions (except session III where I need to receive some phone calls). We have 5 judges and some audience to pick favorite/people’s choice Pre Amp.

Enjoy some pics here. So many Pre Amp, so many design! The equipments was Consonance CD Player 2.2, Jadis Defy 7, and Tannoy Stirling full range speaker (with extra Fostex super tweeter).

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Tags: Audio, Blind Test, pre amp, Pre Amplifier, tube
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Posted on Sunday, 6th July 2008 by Auw Jimmy

The time has come… Saturday, 6 July 2008… The Aikido Blind Test session at Tubelover, South Jakarta, Indonesia. Total we have 11 contenders today. All with John Broskie Aikido Pre-Amplifier design. Some use the original PCB ordered from here and some prefer their own point-to-point design. Various tubes are here, small 9 pin tubes, Octal, and also the miniature like 6111WA and 6021.

Here is some snapshot from the event.

We use the Jadis Defy 7 Push Pull Power Amplifier rated around 100 Watts RMS (twelve 6550 tubes). The speaker is Tannoy Stirling with Fostex Super Tweeter. The CD Player is Audio Research CD3 MkII.

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Tags: Blind Test, BT, DIY-Audio, tube
Posted in DIY Audio, Personal | Comments (3)