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Willsenton

R8 KT88/EL34 x4 Tube Amplifier Integrated AMP Power Amplifier Headphone Replaceable Basic Meter (Black)

    • Based on 186 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Feb 24
Order within 7 hours and 13 minutes
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Color: Black


Features

  • The model currently on sale is the New Model upgraded in December 2023.
  • One amplifier can used wiht tube EL34, KT88 or 6550, so, you can get 3 kinds of sound from different models tubes. The default matching tubes of this machine is KT88. If you need another 2 new sets of tube, please purchase in addition. There is a Red selection button on the Back of the amp to switch.
  • Can be used as an Integrated amplifier, power amplifier or Headphone amplifier. Pure hand-made, the whole machine is welded with scaffolding.
  • Triode and ultra-linear selection are available, which can be switched by the button on the amplifier. With a remote control,Vacuum tube protective cover,Fuse and an English manual.
  • We recommend that you spend 100-300 hours to RUN-IN this amplifier to get a better sound. Generally, you could get a better and stable sound after 100 hours, and you could get the best sound after accumulating more than 300 hours.

Description

The model currently on sale is the New Model upgraded in December 2023. Features Pure hand-made, the whole machine is welded with scaffolding. Use a square power transformer specially developed for this machine. The output transformer uses two high quality wideband EI output transformers. The voltage amplification and boost stage uses a 6SN7 for power supply filtering. The voltage amplification stage and the push stage use two pairs of 6SL7 and 6SN7 tubes, respectively. The rear stage uses four KT88/6550/EL34 tubes for class AB push-pull power amplification. Triode and ultra-linear selection are available. External independent BIAS-ADJ current display header. External EL34/KT88 tube selection function, easy to replace different types of tubes, adding endless fun. Infrared full-featured remote control. Use thick silver plated signal leads. With pure post-level function, it can be connected to independent preamplifier signal input. Power on mute delay function (about 30 seconds). Select Japanese ALPS high-end motor potentiometer. Easy-to-install plug-in tube shield. Product parameters: FTC Power Output Rating: 16W + 16W (KT88 Triode) (8ohms,20HZ-20KHZ,THD 1%) FTC Power Output Rating: 30W + 30W (KT88 Ultra-Linear) (8ohms,20HZ-20KHZ,THD 1%) Output Power rating (not tested under the FTC standard): 23W+23W (RMS KT88 Triode) Output Power rating (not tested under the FTC standard): 45W+45W (RMS KT88 Ultra-Linear) Whole machine frequency response: 12Hz-40KHz (± 1.5dB) Harmonic distortion: 0.2% (1W/1kHz, rated output power less than 5%) Signal to noise ratio: 89Db (weighted by A) Input sensitivity: 320Mv (merged), 700Mv (Power stage) Input impedance: 100k Ω Input terminals: CD, AUX1, AUX2, PRE-IN Output impedance: 4 ohms, 8 ohms Headphone output impedance: 30 ohms to 300 ohms Power supply voltage:~120V ± 5% (50Hz) Whole machine volume: 400x390x200mm (WxDxH) Use vacuum tubes: 6SL7x2, 6SN7x3, KT88x4 Net weight: 26kg Power consumption of the whole machine: 280W

Brand: Willsenton


Color: Black


Compatible Devices: all


Material: silver


Output Wattage: 45 Watts


Product Dimensions ‏ : ‎ 19.69 x 11.81 x 20.08 inches; 57.32 Pounds


Item model number ‏ : ‎ Willsenton R8


Date First Available ‏ : ‎ November 6, 2019


Manufacturer ‏ : ‎ Willsenton


Country of Origin ‏ : ‎ China


Best Sellers Rank: #185,262 in Electronics (See Top 100 in Electronics) #934 in Audio Component Amplifiers


#934 in Audio Component Amplifiers:


Customer Reviews: 4.4 4.4 out of 5 stars 186 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Feb 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Fantastic value for your money
Color: Black
Review Image by S. Rao S. Rao
Review Image by S. Rao S. Rao
Review Image by S. Rao S. Rao
I have the pleasure of owning the R8 for about a month now. So, consider this an initial review Order/delivery process: I ordered it directly from Amazon as the Chinese supplier was out of stock on their website. The R8 showed up within 10 days from ordering it. I was quoted a 4-6 week window - so it got here a lot quicker. The item showed up in a secure double carton that withstood a minor puncture while shipping. Very well packed and secure. Great when you are buying a $$$$ item and want peace of mind. Unboxing/install: Very easy to do as the tubes come pre-installed. It is very heavy though - bend with knees when lifting. I checked the bias after connecting l it to my speakers - it was set up just right. Bias testing is very easy - there is need look for an auto-biasing amplifier instead. Sound Quality: It sounded great out of the box with the stock Willsenton branded tubes. While these tubes are not as nice sounding as vintage NOS tubes, they are good enough to enjoy music. It didn’t sound very tubey though - not a bad thing. It is sort of like solid state with the KT88s. Basically, it sounds fabulous. I substituted the stock tubes with Sylvania 6SL7s and 6SN7 NOS tubes and the sound quality blossomed - more bass, more clarity, basically more everything. There is also a noticeable difference between the ultra linear and triode mode - I like that this amp gives you a choice. (E.g. The Primaluna base models doesn’t provide this feature - you need to buy a $4k Evo 300 for this feature). Build quality: It feels very well built with heavy duty construction. The switches are all metal and the connections look expensive. Speaker pairing: The ~45 watt per channel output means that it easily drove my 104dB sensitive Klipsch La Scalas with very little power. I would recommend a 90dB+ sensitivity speakers if you have a large room and like loud volumes. Also it doesn’t support less than 4 ohms speakers. There is no subwoofer output of that matters to you - again the base Primalunas amp don’t have it either. Expandability: There are a lot of possibilities for tube rolling on the pre-amp, driver and output side. Only caution is that it isn’t wired for KT120s or KT150s. It tops out at 6550s/KT88s. That is more than enough for me. Remote: It comes with a metal bodied remote which feels nice to hold but is a real pain to insert or change batteries. Also the volume control feature is poorly executed on the remote - the jumps in volume are too big for each button press. I don’t use the remote as a result. Bad design. Overall: I love it. It has great build quality, expandability, power output, decent sound of the box at an affordable price. I was evaluating the R8 against the PrimaLuna Evo 100 and the Decware SE341.5. These were in the $1-2.5k bracket. I picked the R8 for its value. I had auditioned the Primaluna - it sounded decent but is not better sounding than the R8. I would rate the R8 as a better sounding amplifier. I haven’t heard the Decware amps (they have a great reputation) but as they had a real long waiting period and as I needed an amp now my decision was made. I will update this review later when I have more experience with it. ... show more
Reviewed in the United States on July 5, 2021 by S. Rao S. Rao
    • Not entry-level, enormous quality and performance but without the price tag.
Color: Black
Wow! I’m not new to tube amplifiers, both from an audio file perspective and a performance perspective as a bassist. My ears have been good to me and so I still hear all the things that attracted me to tubes to begin with. I don’t have the disposable income to spend the money on the big dogs. But I’ve always had very fine gear and overtime, my vintage gear would sell now for more that I could ever afford to pay. One of my Luxman amplifiers went out and so this was the replacement. I did not think I would be able to replace it with an equal but I was wrong. This amplifier is everything that the reviews said it is and a little bit more. The stock tubes get better in just a couple of hours of playing time. I’m anxious to see what they do over more hours. The dynamics are really top notch when listening to vinyl. I was afraid it would not have enough power but how wrong I was. Watts mean nothing without voltage. All styles of music sound good with this. Low levels are high levels, testing your ears or shaking your pants legs, this is a ridiculous amount of amplifier for the money. It’s not entry-level at all. It’s such a welcome treat and I’m enjoying it immensely ... show more
Reviewed in the United States on January 26, 2025 by Carl
    • Outstanding Value
Color: Black
The Willsenton R8 lives up to the hype. It replaced a Peachtree Nova300. I love the Nova300 like favorite child, but the R8 provides a VERY satisfying musical experience that the Nova can't quite reach. I run it through 4-ohm Tekton Pendragons which have a sensitivity of 95dB 1W@1m. It's a luscious presentation. I use a Cambridge Audio DacMagic 200M between my computer and the amp. It sounds great on Bluetooth or USB. The Nova300 produces 450W at 4 ohms. For my purposes, the 25W R8 is louder than I'd likely ever need and is capable at playing beautifully at >100dB. It does everything well. Bass is solid, defined and hefty. Highs are light and pretty. In triode mode, there is a lot of space and a 3D soundstage. I did not believe that the difference between the Nova and R8 would be this great. And I'm still burning in the KT88 tubes the amp shipped with. I have purchased some JJ EL34s to test the differences and do some "Tube Rolling". I am relearning my music collection. PROS Heavy (weights 65 lbs, high quality) Extra-simple bias adjustment Stunning sound quality and soundstage CONS Heavy (lift with your legs) I haven't been this impressed with a piece of audio gear since I bought the Tekton Pendragons. 5 Stars. ... show more
Reviewed in the United States on November 16, 2024 by Peace Pirate

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