Here’s some good ones this week. None of the eBay listings are mine. Also Hifi-College really honors their warranty. If it’s Aoshida-US and they ship it, I’ve never had a problem. If Amazon ships it and it’s used, they just tell you to send it back and don’t replace it. SMSL store stuff always works with no problem also. On Ebay it’s the usual, check seller feedback and make sure it’s not a brand new account with a price that’s too good to be true. Starting with the Topping stuff since I’m currently listening to an original A90/D90 stack, still the best thing I’ve heard. I buy about $5,000 a month in audio equipment, but not enough time and space for everything. Here’s stuff at the prices I usually pay:
Topping A90 Headphone Amplifier (black) $299 free shipping
Topping A90 Discrete $450 Used Good 1 year warranty
Topping PRE90 Preamplifier $420 used - good 1 yr warranty
https://www.amazon.com/Topping-Preamplifier-Modules-Balanced-Control/dp/B09WZZRSXJ/
Topping D90LE $600 used good 1 yr warranty
https://www.amazon.com/Topping-Bluetooth-ES9038PRO-PCM32bit-Desktop/dp/B0B2JWMCKW/
SMSL C200 Amp/DAC used (but from the SMSL Store) $125
SMSL DL200 $145 used (from SMSL store) cheapest 5 volt DAC on the market
https://www.amazon.com/S-M-S-L-Headphone-Amplifier-ES9039Q2M-PCM768kHz/dp/B0CCY9MXMD/
SMSL M500 MKII $243 used like new condition
https://www.amazon.com/Upgrade-Headphone-Amplifier-Decoding-ES9038PRO/dp/B09MTJJDKV/
TOPPING DX3Pro+ Used very good $115
Topping E70 Velvet AK4499EX DAC $380 used like new (Hifi College so 1 year warranty)
https://www.amazon.com/AK4499EX-Decoder-Bluetooth5-1-Digital-Analog-Convertor/dp/B0BPP411QJ/
Topping G5 Portable NFCA Headphone Amplifier DAC $220 used very good, 1 yr warranty
https://www.amazon.com/KGUSS-Topping-Portable-Headphone-Amplifier/dp/B0B9S2ZLH1
SMSL DO200 MKII MQA DAC $259 Used very good
https://www.amazon.com/DO200-MKII-Balanced-ES9068AS-Bluetooth5-0/dp/B0BFHD1RF4/
Gustard A26 MQA DAC 2xAK4499EX $1124 Good condition
https://www.amazon.com/A26-2xAK4499EX-Streamer-Renderer-Black/dp/B0BPMDZLYH/