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Sennheiser GSX 1200 Pro (507080)

Photos - Headphone Amplifier Sennheiser GSX 1200 Pro
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Outdated Product
Type: stationary; Headphone impedance (ohm): 16 – 150; Frequency range (Hz): 2 – 48000; Codec support: Bass control; Treble adjustment; Level adjustment: wheel; mini-Jack (3.5 mm); Outputs: mini-Jack (3.5 mm); Headphone outputs: Outputs mini-Jack (3.5 mm): 1x mini-Jack (3.5 mm); Screen
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Sennheiser GSX 1200 Pro
Colour
Typestationary
Specs
DAC sample rate96 kHz
DAC bit depth24 bit
Headphone impedance16 – 150 Ohm
Power (32 Ohm)1000 mW
Frequency range2 – 48000 Hz
Coef. harmonic distortion0.005 %
Functions and features
Bass control
Treble adjustment
Equalizer
Level adjustmentwheel
Connectors
Inputsmini-Jack (3.5 mm) / 2 pcs, 1 for microphone, 1 for Chat Link (2.5 mm) /
Outputsmini-Jack (3.5 mm) / 2 pcs, 1 — for speakers, 1 — Chat Link (2.5 mm) /
Headphone outputs1x mini-Jack (3.5 mm) шт
Power source
Power typeUSB powered
General
Screen
Dimensions143x139x70 mm
Weight413 g
Added to E-CatalogMarch 2017
P/N
507080

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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For gaming, it's somewhat better than the built-in codec in your PC, but for music - it's awful.
24 November 2019 
I saved up for a long time to make the purchase, but unfortunately, the joy didn't last long. To start with, I was surprised by the very modest specs of the DAC with 24bit/96Khz and the ADC with 16bit/16Khz. I thought since it's Sennheiser, everything should be top-notch. As it turned out, the only good thing about them is the virtual 7.1 mode and a bunch of small features. The sound in the headphones is very mediocre; it's okay for gaming due to proprietary technologies, but for listening to music... Sadly, the sound from the microphone is even worse. (Even the built-in codec in my laptop sounds much better). I tested this using Sennheiser Game One and AKG K702 headphones.

I decided to take a look inside and was very surprised to see such a cheap codec CX20745 and a decoder, which doubles as an effects processor, CX20833 in such an expensive device. I am very disappointed with this purchase.

For those interested in what's inside, here's a photo:
http://i.piccy.info/i9/fcf854ace3474492647ea53b80b98507/1574600600/582898/1343851/sennh.jpg
virtual 7.1 mode, Appearance.
Poor quality sound for both the headphones and the microphone due to very cheap components. Dollar codecs in a device priced at 150-200 USD is overkill.
Anatoliyuse Sennheiser GSX 1200 Pro few months
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Additional features headphone amplifier Sennheiser GSX 1200 Pro:
  • Chat Link jacks (2.5 mm) for connection to other Sennheiser GSX 1200 Pro amplifiers