Pete Thorn - Cracked open my Vox AC15HW, so I could change the speaker and output tubes- put some NOS EI EL84's in there and a speaker that the nice folks at
![Swapping a Celestion Greenback with a Celestion Blue in a Vox AC15 - Guitar and Bass Amps - Harmony Central Swapping a Celestion Greenback with a Celestion Blue in a Vox AC15 - Guitar and Bass Amps - Harmony Central](https://content.invisioncic.com/w286537/monthly_2014_05/1001687-8962b71d.jpg.3e5f4e69d36dfde87f6c9c150339b1f3.jpg)
Swapping a Celestion Greenback with a Celestion Blue in a Vox AC15 - Guitar and Bass Amps - Harmony Central
Cardiff Sound on Twitter: "Upgraded the speaker in this Vox AC15HW today - certainly sounds sweeter than the greenback to my ears. Now for breaking it in and doing some recording with
![Swapping a Celestion Greenback with a Celestion Blue in a Vox AC15 - Guitar and Bass Amps - Harmony Central Swapping a Celestion Greenback with a Celestion Blue in a Vox AC15 - Guitar and Bass Amps - Harmony Central](https://content.invisioncic.com/w286537/monthly_2014_05/1001658-0bc01bab.jpg.41ac1b4965b1a97c6e2426b1198d68a7.jpg)