Hi Clement, thanks!

My ultra cheap bass earphone recommendations:

• KZ ATE (5–10 dollar; nice warm sound)
• Rock Zircon (5–10 dollar; not so much details but hugely bassy)
• TRN V20 (10–15 dollar, great warm bass)
• CCA C04 (10–20 dollar, tight and full bass, really bass-centric)

I think you will find all of these sound better than your previous earphones. :-)