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Winschoten, The Netherlands

Forum Post Count:


Join Date:


Last Online:

1 hour, 4 minutes ago

About Me:

Tiemen is my birth certificate name. Theo my given name.

Interests (Hobbies, favorite activities, etc.):

Reading about news and music, listening to music, walking the dogs and dogs in general

What I do for a living:

A boring office job.


Headphone Inventory

-AKG K 272 HD, w/ DT 770 velour ear pads
-GermanMAESTRO GMP 250, w/ tape modded DT 770 velour pads, HD 650 recabled
-ZMF modified Fostex T50RP, w/ SRH1540 pads
-GermanMAESTRO GMP 8.300 D Professional, w/ HM5 pleather pads
-BeyerDynamic DT 150 w/ SRH1540 pads
-AKG K 270 Playback, w/ MrSpeakers Dog pads, HD 650 dual entry recabled
-Philips N 6330 Sextett MP, made by AKG

Sold/ auditioned/ broken/ given away:
MB Quart PMB 45 MK II
BeyerDynamic DT 880 Edition, 600 Ω, closed back, NoXter mod
MB Quart Phone 90 X
Philips N6330/99 = AKG K240 "sextett cardan" LP
Sennheiser HD 650
MB Quart K 800C
Philips N 6330 (Sextett LP, made by AKG)
BeyerDynamic DT 880 (vintage, 600 Ω)
Philips SBC HP830
BeyerDynamic DT 770 Manufaktur 600 Ω
BeyerDynamic DT 100, 400 Ω
Ultrasone Pro900 (thanks to Anouk)
M-Audio Studiophile Q40, recabled and modded by warrior05
Sony MDR-XB700
Sennheiser HD 380 pro
Sennheiser HD 555 (woodied and modded by QQQ)
Philips EM6721 Balanced Electret
AKG K 240 DF
Kenwood KH-K1000 (thanks to Anouk)
AKG K-400 EP
AKG K-400 LP
AKG K 140 Cardan
AKG K-401
AKG K-500 (thanks to REB)
Orthodome SR-3N
AKG K 601
Denon AH-D2000
BeyerDynamic DT 770 2005 consumer edition
Sennheiser HD 580
BeyerDynamic DT 770/80 Pro
Sony MDR-CD 1700
BeyerDynamic DT 231
AKG K 55
BeyerDynamic DT 531
BeyerDynamic DT 990 (vintage, 600 Ω)
AKG K271 Studio (twice)
AKG K240 Sextett MP (twice)
Sennheiser HD 457
Sennheiser HD 201


Headphone Amp Inventory

-Zigis Audio Lab Rock’n Glass, Class A Tube - MOSFET hybrid: GMP 250, GMP 8.300D, ZMF
-QUAD headphone amp, made by a former TransTec employee: K 272, DT 150
-Denon PRA-1100: Philips N 6330, K270 P

Sold/ given away:
Desktop HiFi CMoy M2, OPA2134 (Zigis Audio Lab)
Van Waarde single-ended OTL custom tube headphone amp
Musical Fidelity X-can V3
PWAmp H-1 (DIY solid state headphone amp)


Source Inventory

Pre-amplifier: Denon PRA-1100
Soundcard: ESI Juli@
MD deck: Sony MDS-JB 730QS
Cassettedeck: Denon DRM-800A
CD player: Philips CD 753 (modded)

Sold/ died:
Nakamichi CDP-2E
Marantz CD52 (modified)
Magnavox CDB 650
Sony SCD XB 940
Technics SL-PS 770A
Philips CD605
M-Audio Audiophile 2496 soundcard
Thorens TD 166 (modded), with Grado cartridge

Other Audio Equipment

Loudspeaker rig:
NAD receiver, JVC DVD player, Mission loudspeakers

Audio-Related Tweaks

I like to try different ear pads, even if they are not of the same brand.

Music Preferences

American roots music (Americana, folk, alt.country, rootsrock etc), rock and (indie)pop.

Interests (non-headphone)

I am a news junkie.
Autism has my interest as well, because I have a Autism Spectrum Disorder.

Tiemen's Recent Activity

(Uncheck the summary view to see ALL the gory details!) (Check the summary view to simplify the activity feed.)
ZMF x Vibro & ZMF Blackwood Discussion Thread.
Tiemen posted in this thread in Headphones (full-size) 9/25/15 at 3:42pm | 923 replies | 62202 views
Beyerdynamic DT 150: Bloody Brilliant!
Tiemen posted in this thread in Headphones (full-size) 9/20/15 at 12:30pm | 1544 replies | 125026 views
Size Matters - Earpad hole measurements for Over-ear Headphones....
Tiemen posted in this thread in Headphones (full-size) 9/17/15 at 1:56am | 81 replies | 27268 views
Show us your vintage headphones!
Tiemen posted in this thread in Headphones (full-size) 7/14/15 at 2:37pm | 1601 replies | 286643 views
The Beyer DT150 Experience
Tiemen posted in this thread in Headphones (full-size) 7/14/15 at 12:02pm | 113 replies | 15632 views
ZMF Omni Pre-Order Sale and Head-Fi Impressions Tour Sign Up
Tiemen posted in this thread in Sponsor Announcements and Deals 6/29/15 at 12:37pm | 48 replies | 2924 views
Test your ears! How well can you hear audio quality?
Tiemen posted in this thread in Members' Lounge (General Discussion) 6/6/15 at 3:54am | 7 replies | 254 views
Roll Call for Team AKG
Tiemen posted in this thread in Headphones (full-size) 5/28/15 at 3:03am | 1444 replies | 75411 views


Tiemen’s Photos

German Maestro GMP 8.300 D Professional
11 photos
Latest upload: May 13, 2010
recabled K270 Playback
4 photos
Latest upload: May 5, 2010
Van Waarde single-ended OTL custom headphone amplifier
10 photos
Latest upload: May 5, 2010
13 photos
Latest upload: Jul 27, 2015
62 photos
Latest upload: Dec 10, 2011

Tiemen’s Embedded Photos

Tiemen's photos in Review: ZMF Modified Fostex T50RP.   Superb!
4 photos
Latest upload: Sep 22, 2013
Tiemen's photos in K271S with Dog Pads - Match made in heaven!
6 photos
Latest upload: May 20, 2013
Tiemen's photos in REVIEW: Cool colorful genuine leather earpads for AKG K240 et al
3 photos
Latest upload: May 1, 2013
Tiemen's photos in German MAESTRO - Appreciation Thread
3 photos
Latest upload: Jun 9, 2014
Tiemen's photos in Beyerdynamic DT 150: Bloody Brilliant!
1 photo
Latest upload: Dec 9, 2014

Tiemen's Lists

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