AIYIMATube （ 6k4） preamplifier Gall preamplifier HiFi preamplifier (Adjustment of Treble and bass) Treble bass Adjustment Audio preamplifier

Partnered with Aiyima A07 power amp. Gives a good pre-amplification to A07. Compensated the A07 with a warm sound signature. May not have hugely altered the A07, but I think it will help any power amp with brightness. The tubes does their magic . It’s not 100% tube based , but being them on the signal path managed by solid state does impact the output for better .If your requirement is to connect multiple inputs then need to look at other products from Aiyima

Does what it meant for. But costly as this is disconnected version.

add this little gem to any entry level amplifier and feel the added punch from the speakers. for the money this is a no brainer. I am using it since a week and am loving it.After using it for about 3 weeks:the right channel has stopped working. I dont know what i can do about it or who do I contact.2 month review. Changed the tubes. Working well now. I think it’s absolutely worth the money. Can get the tube sound using a normal entry level amplifier. Good addition for an everyday all day working set up.

Not right to call it a preamplifier as it takes only one input. Should have had more than one. Also volume control ineffective after about 60%. I have put it away as there is a large hum on turning on and a dc offset puts my dc coupled power amp into protection mode.

I found the product very good . I have connected it to my yahama amplifier. The sound quality has dramatically improved with improved bass and clear voice . Some how the sound is very pleasant now to hear without much fatigue . Highly recommended.