If you mean the bottom boxes from Credos, they are not subs, and cannot be used with anything else. It’s probably best to return them to the recycling centre. Still, you got a great deal on the CD5 and Nait 5, both of which are excellent.
Those are the mid/bass boxes. The drivers, provided they are fully working and undamaged, have value as they were made by Naim and used in Credo, Allae, SBL, and SL2, albeit specially selected and matched for the last two. Your best bet would be to check they are fully working and if so sell them and put funds towards other speakers.
Thanks Richard, to test them could i plug them directly into an amp, or would they need to go through some kind of cross over like on the original sets?
They are the mid-bass drivers for Naim’s entry level Intro 2 loudspeakers and not the superior Credo. The Credo drive units were a more elaborate affair and sported aluminium phase-plugs, amongst other things…
The Intro used a simplified driver. The Phase plug is the giveaway. Is the phase plug a two-piece aluminium one on these? If so, they are Credo drivers. If not, they are from Intros.