Uber Sennheiser HD6xx V2 with upgraded drivers and choice of balanced or single ended cable


Modified Sennheiser HD6xx

Only 1 left in stock


The Sennheiser HD600 series has always been popular with studio technicians and audiophiles alike for their balanced and forgiving sound. The 6xx was developed by Sennheiser in collaboration with Drop with some revisions but identical sound. We have developed a CNC machined copper weight that helps them produce more detailed bass and smooths the airflow through the back of the driver to take them to the next level. The weight by it’s self increases the level of bass then we fit a foam insert that brings it back in line while keeping the extra clarity. We also include 3 additional inserts that offer different sound signatures so if you want a bit more or less bass to suit your personal taste, you can just change the insert until you find your favourite sound.

Modified Sennheiser HD6xx Frequency Plot

uber HD600 frequency plot


To finish them off we fit them with one of our ultra low capacitance cables in the colour of you choice. If you opt for a balanced cable we will also include the original cable so you can still use them with single ended sources

Customer service and warranty

We know that you are paying a premium for our headphones and that they are a very important part of your life. Our headphones are made durable and reliable, but in the unlikely event that you do have an issue with them, please get in contact with us and we will make sure that we get you sorted out. We offer a full 2 year ‘return to base’ warranty, and we keep all of the spare parts in stock so that we can also send replacement parts if necessary. Outside of the warranty period we still offer repairs on all our products for a fair price.

International orders

Close to 70% of our customers are outside of the UK, so we have a lot of experience with international orders and worldwide shipping. All packages over £50 will have a form of international tracking.

– European packages normally take 4-6 days.
– US, AUS and Canada packages normally take 7-10 Days.
– Packages sent to the rest of the world can vary depending on local postal services.
– Packages shipping outside of the EU may be delayed in customs, but the tracking system should keep you updated of its progress.

Custom Cans UK VAT number: 141 987 390


Additional information

Weight 0.7 kg
Dimensions 25 × 18 × 12 cm
Cable Length

1m, 1.25m, 1.5m, 2m, 2.5m, 3m, 3.5m, 4m, 5m


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