Some have mentioned the cheap internal components (I would not know anything about that myself). Expand all responses ; Collapse all responses; Sort . Please note this 728A Vacuum Tube Pre-Amplifier is factory Upgraded Version, which utilizes the premium electronic components.
Keeping the tube rolling aspect of this post going - I found Electro Harmonix 12BH7EH tubes to be quite an improvement over the stock Chinese tubes in the 12AU7 spot. Then I upgraded the tubes, which were not that expensive to do being these are preamp tubes, then I also replace the cheap volume pot with an alps. This time I got the one with tone controls and a defeat function. This creature sounds surprisingly amazing. $56.39. SOLD - FOR SALE: XiangSheng 728A tube preamplifier - upgraded version . Excellent tube preamp for any amount of money. Cosmetically, the preamp is in very nice condition. The Xiangsheng 728A is all about exploiting the best it can with quality sound on a budget production cost. The modifications were no more then $100 so I still ended up with a preamp that was less then $400 that easily compares with much more expensive brands.
And this it does very well. Some folks complain about the tone controls and other nit-pick items but if you're into tubes, this is a great starter piece as well as one to keep until $2k becomes disposable income. Yes, that's right, I finally bought a tube preamplifier. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. Read honest and unbiased product reviews from our users. But apart fromabove features, it’s also not inferior to Marantz7 in Sound stage and airy feeling.Adopt 4pcs paper in oil capacitors and German WIMA capacitors for coupling effect, make thesound warm and delicate.Specifications:Size : 430 × 90 × 290mmInput impedance : 100K;Output impedance : 600 ohmsOutput max volatage: 15vSNR : 90dB;Frequency Response : 10Hz - 30KHz;Distortion : ≤ 1%.Input Power : AC100V-AC240V available 60Hz/50HzOutput Tube : 12AT7×2, 12AU7×2, 6Z4×2Input Sensitivity : 400mHumidity : 35%—80%TMD : less than 0.01%Input Jack : 4 groupsOutput Jack : 2 groups(same voltage), you can connect double same amplifiersNet weight : 8.5kg,Package size weight : 11.8kg, XiangSheng 728A pre- amplifier, power cord, The feedback period is over for this ad, so feedback is no longer allowed. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. HiFi Vacuum Tube Preamplifier Stereo Audio Preamp … The “A” designate on this model is supposed to be the more improved version but since that we have not heard the original version, we don’t know how much better it is over the older version. The reviews for this preamp are all over the place on the internet. I have a 20k system, dont waste your time like i did, this is cheap crap period... Walmart level... for real.. Not good sound, its so cheap its ridiculous.. $53.58. First impressions. ONE-YEAR WARRANTY !!! I chose it because it shipped from the US and it was the best buy. Unable to add item to List. Your question may be answered by sellers, manufacturers, or customers who purchased this item, who are all part of the Amazon community. This is a new Xiangsheng 728A tube pre-amplifier version, it's without the tones adjustment, this upgrade can offer a better pure HIFI original sound and improve the sound quality Wonderful stereo Pre-Amplifier, built with the best parts available, ADATA Ultimate Series: SU630 240GB Internal SATA Solid State Drive, New Balance Men's Classic 993 Running Shoes Grey, Intel Core i7-10700K Unlocked Desktop Processor + Microsoft 365 Personal 1 Year, AMD Ryzen 9 3900XT Desktop Processor + Assassins Creed Valhalla (Email Delivery), Lenovo ThinkPad T490S, 14.0" FHD IPS 250 nits, i5-8365U, UHD Graphics, 16GB, ASICS Tiger Men's Hoodie Clothes 2011A526, ASICS Men's GEL-Quantum 360 4 LE Shoes 1021A105, Dyson V7 Fluffy HEPA Cordless Vacuum Cleaner | Blue | New, HP 15 Series 15 Laptop Intel Core i3 4GB RAM 256GB SSD Snow White + Microsoft 3, Apple iPhone XR 64GB Factory Unlocked Smartphone 4G LTE iOS Smartphone, Apple MacBook Air 13-Inch Space Gray 10th Gen i5 256GB Z0YJ0LL/A 2020 Model, Nintendo Switch 32GB Console w/ Neon Blue And Neon Red Joy Con + Minecraft Dunge, ASICS Tiger Men's Track Jacket Clothes 2011A525, Dell Inspiron 13 5391 Laptop 13.3" FHD Intel i5-10210U 256GB SSD 8GB RAM, Egyptian Comfort 1800 Count 4 Piece Bed Sheet Set Deep Pocket Bed Sheets, Apple iPhone 8 64GB Factory Unlocked Smartphone, Samsung Galaxy S20+ Plus SM-G985F/DS 128GB 8GB RAM (FACTORY UNLOCKED) 6.7" 64MP, ASICS Tiger Men's GEL-Diablo Shoes 1193A096, NOCKTURNAL LIGHTED NOCKS - lost of sizes and colors bulk new, Intel Core i9-9900K Desktop Processor + Microsoft 365 Personal 1 Year, Apple iPhone X 64GB Factory Unlocked Smartphone, adidas Digital Camo Logo Graphic Tee Men's, ASICS Tiger Men's Long Sleeve T-Shirt Clothes 2011A521, 5/10 Tier Storage Organizer Cabinet Shelf Space Saving Shoe Tower Rack Home, Samsung Galaxy Note 20 Ultra 256GB 12GB RAM SM-N9860 (FACTORY UNLOCKED) 6.9", Plain Baseball Cap Strapback Adjustable Solid Blank Hat Polo Style Visor Caps, Silicone Sport Band 38mm 42mm For Nike+ Apple Watch Series 1 2 3 4 5 6 SE. Very minor scuff marks from use but nothing major. For under $400 MSRP, this preamp has tone controls (with a bypass switch if you want to circumvent them) and a simple volume and selector knob.