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Willsenton

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

    • Based on 164 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by TubeAmplifierStore
Arrives May 26 – May 31
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Color: Black


Features

  • This amplifier can be used with KT88 or EL34 vacuum tube, and there is a Red selection button on the Back of the amp to switch. The default matching tubes of this machine is KT88. If you need EL34 tubes, please purchase separately.
  • Pure hand-made, the whole machine is welded with scaffolding.
  • Can be used as an Integrated amplifier, power amplifier or Headphone amplifier
  • 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.

Description

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 single-ended 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: Frequency effect: 10Hz 40kHz (+/-0.5db) Total harmonic distortion: 1% (1kHz) Signal to noise ratio: 91dB Input sensitivity: 380mv (when Integrated amp input) 820mv (when pure power amp input) Input impedance: 100KΩ Output impedance: 4Ω, 8Ω Power supply voltage: 230V ± 5% (50Hz) ~ 115V ± 5% (50Hz) Machine volume (400200390) (WHD) mm Use vacuum tube: 6SN73.6SL72.KT884/6550EH4/EL344 Power consumption: 310W Net weight: 26kg -90% Rated output power: 25W+25W (RMS triode working state) 45W+45W (RMS ultra linear working state) (KT88) 25W+25W (RMS triode working state) 40W+40W (RMS ultra linear working state) (EL34)

Brand: Willsenton


Color: Black


Output Wattage: 45 Watts


Product Dimensions: 15.35"D x 15.75"W x 7.87"H


Item Weight: 26 Kilograms


Product Dimensions: 19.69 x 11.81 x 20.08 inches


Item Weight: 57.2 pounds


Manufacturer: Willsenton


Country of Origin: China


Item model number: Willsenton R8


Date First Available: November 6, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 26 – May 31

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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Similar Products

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
    • The Magic Returns!!!
Color: Black
In 1983 I was a young Army Captain stationed at Fort Bliss, Texas. I had always loved music since daddy was a piano teacher and I grew up listening to him playing Rachmaninov and George Gershwin among so many others. In the 60s rock hit me hard and I became a fan of classic rock. Back to 1983. My wife and I paid a visit to Howell Electronics audio store off Montana and while we were there we heard MOFI’s Supertramp Crime of the Century on vinyl played through a Harman Kardon Citation amp and ESS Heil AMT speakers. I’ve been chasing that sound for almost 40 years and with this Willsenton R8 I’ve finally found that magic at a price point I can afford. I’ve had my R8 since Tuesday and I’ve been breaking it in 6-8 hours a day using stock tubes. I won’t waste your time repeating all the superlative comments other reviewers have made about the incredible packing, fit and finish, heft of the unit, and the fact that it exudes quality from every pore. It’s all true, unbelievably so. Everything about this unit exhibits the highest level of pride and care I have ever seen in a consumer product from ANY country. Trusting those rave reviews, I set my amp up and started burning it in with CDs and vinyl I knew well. Even with those stock tubes it breathes new life into everything I have thrown at it. I am especially stunned at how it has revitalized my CD collection, something totally unexpected. There is a deep musicality, presence and spaciousness to every source. Beware though this system will expose poor recordings for what they are, but the exquisite ones are just that, exquisitely breathtaking. In a few days I will start rolling the 6SL7s and 6SN7s as well as KT 77s, EL34s and 6CA7s previously purchased. For now I’m having a hard time believing the sound can get any better. This quality piece of equipment captures the magic I heard 40 years ago, and I’m extremely grateful to the wonderful audiophiles who have been brave enough to tell the truth about this $1400 amp that competes at levels above its pay grade. Well done Willsenton. You’ve put a 30 year old grin on a 70 year old music lover!!! ... show more
Reviewed in the United States on April 22, 2022 by A. Landry
    • Just blown away by the sound and build quality.
Color: Black
Review Image by Eric Eric
Review Image by Eric Eric
Review Image by Eric Eric
Lots of research went into this purchase in fact so much the cost had gone up by the time I made this purchase. This Tube Amp is a beast when it comes to shear weight. It definitely punches way above its price point in regards to quality and sound. As you can see my sound stage is quite large and this Amp fills the entire room with clear clean sound at the 12 o’clock position. Power to push floor standing speakers as you can see. I have paired this amp with Elac AF51 speakers, JAMO 97CII and the HECO 1000 shown in the photo. All have performed well with no feed back issues and lots of detail. Of course the speakers all have a common smile that match the presentation of the stock tubes. This AMP is just amazing and will rival the Macintosh of old like the 275 should you roll the right tubes into this baby. Simply put purchase it and be amazed don’t forget you are going to need to put some hours on the tubes before they will open up so first impression might not be the lush sound you will begin to experience around 40 hours of playing. Thought I would add some help full info to this review. Yes still love this purchase and yes I have rolled a few tubes to produce one of the most satisfying sounds I have had in the past 10 years. Swap out the rectifying tubes with UK PSVANE tubes Power Tubes if you can find them Valve Art KT88. 6SL7 tubes with Tugsol tubes and…….. Yes a complete level system that has bass mid and treble in equal parts. My suggestion is still just buy it Vinyl was created when tubes were born so what more needs to be said. Also tubes last a long time not just six months. More like 8000 hours if you read the spec sheet. So you do the math on how much you play your current system. ... show more
Reviewed in the United States on April 16, 2022 by Eric Eric

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