SKU: 37447234592

Fet Valve CFR Preamplifier

Sale price$1034.55 Regular price$1149.50
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Fet Valve CFR PreamplifierThe Fet Valve CFR is our best all tube preamp circuits in a stunning fully remote controlled chassis. The Fet Valve CFR preamplifier takes our best tube preamp circuits to a new level of musicality and user convenience. The Fet Valve CFR has remote volume, remote input switching, remote power, and even remote panel light dimming. Our lovely custom silver faceplate is standard, along with premium quality RCA jacks. The Fet Valve CFR's audio stage is

The Fet Valve CFR is our best all-tube preamp circuits in a stunning fully remote controlled chassis.

The Fet Valve CFR preamplifier takes our best tube preamp circuits to a new level of musicality and user convenience.

The  Fet Valve CFR has remote volume, remote input switching, remote power, and even remote panel light dimming. Our lovely custom silver faceplate is standard, along with premium quality RCA jacks.

The Fet Valve CFR's audio stage is all tube, using 12AT7 tubes for gain and 12AU7 tubes as cathode followers. This combination, done with outstanding multiple regulated power supplies, provides the amazing dynamic range, transparency, and load drive capacity that we demand. It will interface seamlessly into and improve the most demanding audio systems.

We use all polypropylene capacitors in the signal path and the newest high-capacity power supply capacitors.

The Fet Valve CFR preamplifier also includes as a standard feature an exquisite headphone amplifier.

Power Supply and Layout

AVA has long been an advocate of rock solid power supplies, and the power supply used in the Fet Valve CFR is no exception. The high voltage supplies are based around six active high voltage regulators, one for each tube section. This design takes supply noise and interaction down to nearly zero. In addition, there are separate regulated power supplies for the tube heaters and the headphone amplifier. Smoothing capacitors are carefully selected modern, high-reliability, high-capacity units.

The main circuit board uses multiple isolated ground planes strategically interconnected to eliminate the effects of ground currents. A very quiet custom made shielded power transformer is used.

The Fet Valve CFR power supplies are incredibly quiet and rock stable platforms on which our audio circuits can perform their best.

SLR Chassis Design

The SLR chassis features a precision remote control volume control along with five sets of remote switchable inputs and two sets of line audio outputs. Additional functions include:

  • A precision balance control.
  • Mono/Stereo - to get mono audio sources (such as older TV and other video sources) to both left and right channels and to quiet noisy FM broadcast and old records.
  • Low Gain - to allow better volume control use with the high-efficiency speakers and high gain amplifiers.
  • High Filter - to tame excess brightness from low quality sources.
  • Low Filter - to deal with warped records and turntable rumble.
  • Support for tape monitoring.
  • A built-in high quality headphone amplifier.

The 1/4" sculpted aluminum face plate is finished with our incredibly durable double-anodized process is standard. All RCA jacks are premium quality, gold plated, heavy duty parts. A removable IEC power cord is standard as well.

Dimensions: 17" wide x 12" deep x 3.5" high. Shipping weight is 17 pounds.

Reviews

Reviews for the previous generation CF, with identical audio electronics:

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37447234592

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R Washington
Omaha, US
★★★★★ 5
Liquid Gold for Your Engine! 🛢️💥
Size: 1 Liter, Style: 1 Pack, Configuration: 5W-40
I didn’t think I’d get excited about motor oil, but here we are—Liqui Moly Molygen 5W-40 has officially made me feel like a car enthusiast. If you're serious about keeping your engine purring like a kitten, this stuff is like giving it a spa day with an energy drink chaser. First off, this isn’t just any old motor oil—it’s high-tech motor oil. We’re talking German engineering at its finest. The neon green color? Oh yeah, it looks as cool as it sounds, and trust me, when you see that green oil running through your engine, you know you're in for some serious performance. 🟢💯 Why do I love it? Engine protection: This oil is like a security blanket for your engine. It reduces friction like a champ, so parts glide smoothly, which means less wear and tear. Translation: your engine will thank you with better performance and a longer life. Fuel efficiency: You’re not just getting a smoother ride; you’re also saving some bucks at the pump. The way this oil cuts down on friction helps with fuel economy. It’s like the gift that keeps on giving. Cold start-ups? No problem. Whether you’re dealing with a chilly morning or scorching summer, this oil handles temperature extremes like a boss. It maintains its viscosity so your engine stays protected regardless of the weather. And did I mention the Molygen technology? It’s not just a fancy name—this oil has additives that coat your engine in a protective film, keeping it running smooth and reducing the risk of damage, even during high-stress drives. Final thought: If you're looking for an oil that’s as serious about your car’s performance as you are, the Liqui Moly Molygen 5W-40 is it. Your engine will run smoother, quieter, and stronger, and you’ll feel like you’ve just upgraded your car’s lifeblood. 🚗💨 Plus, that neon green color? Total conversation starter at the garage. 😉
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Reviewed in the United States on September 23, 2024
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Verified Purchase
Lauren
Fort Morgan, US
★★★★★ 5
Perfect
Excellent spark plugs. Seems like OEM performance. Very easy to install. Fit perfect for an 08 crv exl
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Reviewed in the United States on November 29, 2025
R
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RZA
Waukegan, US
★★★★★ 5
Amazing Spark plugs
Smooth starting came after I fitted these Bosch 9614 double iridium plugs into my 2014 Honda Accord Sport, along with slightly better idling behavior. Longevity might come from those fine iridium tips; installing them felt straightforward enough. Yet here's the catch - the 9614 doesn't match what the factory actually specifies for the 2.4L engine in that year’s Accord. Most often, it's the 9694 or some other OEM-recommended plug you’d want instead
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Reviewed in the United States on December 30, 2025
A
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Akram M.
Belleville, US
★★★★★ 5
Great plug
Not sure about gas mileage, but these definitely improved the performance of my little 1.8 L Honda Civic, not sure if it’s because the old Plex were just old and weak or just because these are that much better. Acceleration is much better and engine or idle is much smoother
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Reviewed in the United States on September 28, 2025
K
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Kheino Campbell
Alexandria, US
★★★★★ 5
Very affordable compare to the Honda OE
Prefect fit and very affordable for the brand.
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Reviewed in the United States on March 22, 2026

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