How would you introduce tubes into this SS system?


I have a Rotel RC-1070 preamp and a Parasound HCA-1000 amp driving a pair of NHT Super Two’s. The Super Two’s sensitivity is 87 db (2.83V at 1M), 8 Ohms nominal impedance (3.8 Ohms minimum), and recommended amp power of 25W/ch min. and 175W/ch. max. The Rotel’s output level and impedance are 1V and 100 Ohms, and the Parasound’s input impedance is 33 kiloOhms. The budget is around $2000 for either a tube preamp, tube amp, or integrated tube/hybrid amp. I like the sonic qualities of tube equipment, but I don’t want to sacrifice too much bass. I should also mention that I use this system primarily for listening to vinyl on a Music Hall mmf-5.1 turntable. Should I replace the Rotel, the Parasound, or both? Thanks for your opinions.
jackalope
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If you live in a cold climate, that Cayin will make an excellent space heater.
Before you buy a Cayin product be aware that they no longer have a USA distributor and the manufacturer in China will not communicate with users. I have two dead A100T integrated amps that sit unused for want of repairs/parts availability. FWIW.
He used to be the distributor. He is the one who wouldn’t repair nor could he get the parts I needed for my service tech. His intentions may have been good but I got the impression that Cayin in China couldn’t care less. FWIW I think that support for product has been a major weakness for some Chinese brands in the USA. Cayin isn’t the only one. The USA (ex) distributor for Consonance tells pretty much the same story. I bought the Cayin as they were ’point to point’ and I believed any service tech could handle them, but what I found out dealing thru VSA was they/ I could not get a schematic (or just wouldn’t pass it on, same difference to me) and were unable to get the parts I needed from China. So I have two amps which can operate with a single input since I bypassed the input selection chip/remote control, etc. But hey, they ’work’ like a basic amp with a volume control if I ever need one. The nail in the coffin for me, if that all isn’t enough, is that both amps failed due to a blown heat resistor after about 4 years of operation and should have been easily repairable.