Fostex TH1000RP mk2 & TH1100RP mk2 Headphones Review - Synergy Impacting Your Best Laid Planars @wavetheorysound
Fostex TH1000RP mk2 & TH1100RP mk2 Headphones Review - Synergy Impacting Your Best Laid Planars  @wavetheorysound
Uploaded August 2026 | Updated September 2026, 2 weeks ago
Thanks to Head-Fi user XERO1 for the loan of the TH1000 series cans!

Buying options (affiliate lilnks):

1000 from Amazon: amzn.to/4wcIIBK

1100 from Amazon: amzn.to/4woNBIk

1100 from Mimic Audio: mimic-audio.com/products/fostex-th1100rp-mk2?bg_ref=0IkoeJqKMz

My TH910 & 919 Review:

youtu.be/kKmCFuRv-lM

My TH1100RP mk1 review:

youtu.be/UBr3wpeZNrY

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Test Gear...

All music was digital in lossless or hi-rez FLAC or DSD formats either played locally or streamed from Qobuz (FLAC only), all through Roon.

Chain 1

Sonore opticalRendu Deluxe Edition (review coming) USB output into Berkeley Alpha USB DDC (youtu.be/94AvDeeRjHA) AES output into Berkeley Alpha S2 DAC (youtu.be/JY3c4HEyH0s) then XLR output into LTA Z10e (youtu.be/Bft6HUsYDhE)

Chain 2

Sonore ultraRendu v1.3 (youtu.be/qEOOE9rP6Rs) USB output into Singxer SU-6 DDC (youtu.be/6dr4T0Sd_NU) then I2S into either Ferrum WANDLA GSE & Oor combo (Hypsos power supply, youtu.be/Qh1b-XFH7R8, youtu.be/xUsRyoBPdyk) with Oor's XLR pre out into XLR switch or LAiV Harmony DAC (youtu.be/GtKG5_ABzAg) into XLR switch, then into either Niimbus HPA US5 Pro (youtu.be/lLlPJyvGSIQ) or Cayin HA-300mkiii (review coming!)

Chain 3

FiiO M33 R2R DAP in Roon mode (youtu.be/byeOH9YPAGc) USB output into Weiss Engineering INT-204 DDC (youtu.be/94AvDeeRjHA) then AES into Schiit Gungnir 2 DAC (youtu.be/XzOPRleWXgE) XLR output into Jensen ISO MAX PC-32X xlr-to-rca transformer then into Schiit Lyr 5 (youtu.be/AL4m9taaMGM)

Chain 4

Audiobyte Super stack (under review)

Chain 5

Chord 2Go streamer (youtu.be/S3O7JNOJIqI) USB output in to Chord Hugo 2 DAC (youtu.be/95i00hn4-Cs) RCA output into Schiit Lyr 5

Chain 6

Same as Chain 3 but replace M33 R2R with Matrix TT-1 (review coming!) and use Lyr 5's preamp output into Flux M-Field amp (youtu.be/51VKme4DQig)

Compared Headphones:

Audio Technica ATH-ADX7000: youtu.be/d7yjTA584go
Dan Clark E3: youtu.be/liuVrWBxo-c
HiFiMan HE1000 Unveiled: youtu.be/pSXKdoYg0Tc

Timestamps...

00:00 Intro, Pricing, Dislcaimer
02:06 Shameless Self Promotion
02:38 Setup & Takeaways
04:32 About the 1000 series
10:05 1000 Sound Leak Test
16:23 Sound
22:54 More Synergy Analysis
25:34 Comparisons
27:46 Final Thoughts
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Fostex TH1000RP mk2 & TH1100RP mk2 Headphones Review - Synergy Impacting Your Best Laid Planars

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