old Audioquest cables review

I am offered a couple of old Audioquest interconnect at very cheap

prices. Could someone comment on the performance of the following cables?

1. Midnight speaker cable

2. Midnight + speaker cable

3. Midnight 3

4. Indigo blue

5. Indigo

What's the difference between no. 1, 2, and 3? Their name's so similar!

I am after a pair of neutral, natural sounding speaker cables without emphasizing on any particular sound range.

My gears:

Kenwood CDP
Transcendent Sound Grounded Grid valve Preamp
Aragon 4004 MKII power amp
KEF C30 speakers

Thanks
Chris