Network Aggregation Router Help

[Triconick]

Budget (including currency): 600 USD

Country: USA

Games, programs or workloads that it will be used for: Network traffic, Aggregation of bandwidth (physical solution for the old connectify dispatch program)

Other details: 

 

To solve a crazy internet problem, I will have multiple DSL modems that i would like to consolidate into one connection. ( I understand this to be network aggregation ) What network aggregation router would best fulfill this need? ( I have 4 DSL modems currently, but would like to add more in the future for more speed )

 

TL;DR: Want to connect 4 DSL modems into one big pipe for better up and down speed. 

[Splarkszter]

Try if connecting all of them to a PC works, optiplex are cheap PC's, dunno how much CPU should be needed but there is PCIe adapters for anything.

A quick search on google or youtube could help with that.