The HE-400s were what I initially wanted to purchase for my entry headphones, however, the Black-Friday deals on the HE-400s had just ended so I bought the DT-880s as my rebound headphones.
It was my left over desire for the 400s that stirred my wallet, but I think that I will just save the money and put it towards upgrading to the next tier.
Sorry again, I feel bad for posting a code that was apparently unintentional.
If you were looking for something that could beat the HE-400 in terms of overall bass quality you'd be hard pressed under 1k though. Even at $300 I think they're a great deal.