For headphones, considering your focus on instant-transactions mycardstatement.wiki balanced and accurate sound, I would suggest looking into models like:
Audio-Technica ATH-M50x: These are well-regarded for their balanced sound and are popular among music producers.
Beyerdynamic DT 990 Pro: Known for their open-back design and detailed sound reproduction, these are excellent for critical listening.
Sennheiser HD 660 S: Sennheiser is known for their quality audio equipment, and these headphones offer a balanced sound profile.
As for headphone amplifiers, a few options to consider are:
Schiit Magni 3+: It's a popular choice for its clean amplification and reasonable price.
FiiO E10K: This is a budget-friendly option that provides good amplification for its price.
JDS Labs Atom: Known for its transparent sound, this amplifier is highly regarded in the audiophile community.