Brock777

I have Infinity 150watt speakers the turntable Technics sl1200 *mk2. I was hoping to get a 2nd hand amp due to finance. Are there any you can recommend from gumtree eBay E.t.c

If someone could answer a question for me I love vinyl & have been collecting for a few years now have a good turntable. I have been using an old decent amp for years a kenwood model but the speakers keep cutting off and crackling. I have a reciever in mind to replace it being a harman Kardon avr 1500 it has no phono input but was going to buy a decent preamp will that work and work well. Or should I buy a old amp with the phono input or should I get a newish one with the phono input. I want the best sound possible can someone help me?