Now that you are here, you must be looking for the best 12ax7 tube for phono preamp! If you aren’t for it, you shall use our search and look for the topic you are interested in. As this piece is a lengthy one and covers a few more aspects other than the best list, they are the best 12ax7 tube for phono preamp brands in United States of America and a buyer’s guide for making an informed buying decision.
Before we begin with the list, We ask you to make a list of things that you are looking for in a 12ax7 tube for phono preamp. It could be anything which you’ll require when doing tasks. This will help you have some clarity about the important things and will help you save money by not overspending on the features you won’t use or a product that has more features!
You surely are here for being able to make an informed buying decision when it comes to 12ax7 tube for phono preamp and you must be looking for the list, We know that! But before we begin, we’d like to tell you that, this is the most unbiased list ever, it has specs, lists down the features of the 12ax7 tube for phono preamp, best brands and has a dedicated buyer’s guide for people in United States of America.
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Best 12ax7 tube for phono preamp in 2022
- Improved circuit; Vacuum Tube: Shuguang 12AX7 (ECC83) * 2 / 12AU7 (ECC82) * 2 / 6Z4 * 2
- Power Transformers 76 * 40 H250 0.35 sheets; Japan ALPS 16 A-type audio potentiometer
- Their performance are the same.
- Full aluminum chassis with wood side panel; 4 Set of stereo L/R RCA auido input, 1 set of RCA output
- Note: Tube models may vary according to supply chain
- Excellent scaffolding design, reasonable, regular, symmetrical device layout, strictly respect the grounding line
2. Nobsound Little Bear T11 6N2/12AX7 Vacuum&Valve Tube Phono Turntable Preamplifier; MM RIAA LP Vinyl Record Player Preamp; Stereo HiFi Audio Pre-Amplifier -ElectronicsBy Nobsound
- And you will be able to choose which type as you like.
- Little Bear T11 is a pure tube phono preamplifier working with MM cartridge turntables only
- If you encounter a similar issue, please check those tips, which have covered most of conditions.
- Supporting 6N2/12AX7 tubes, which offers many replaceable tubes for you like 6H2,6H2n (For 6N2 type) and 12AX7B,6N4(9PIN),ECC83,5751 (For 12AX7 type).
- Adopting a conventional active RIAA equalization phono stage circuit
- There is 3 metal covers and 4 acrylic covers for those tubes
- Please make sure your turntable is equipped with a PHONO signal output instead of a LINE output.
- Its sound performance is better with increased liveness.
- Little Bear T11 is based on T10 with improvement
- Compared to T10, T11 has lower background noise at normal volume
- On the bottom of the description, there is a few Q&A for buyers who might meet the humming problem
- For (this price), the Bellari Tube Phonostage offers warm musical sound and may be just what the doctor ordered for those who want to get into analog without loading up the credit card.” – The Absolute Sound
- It vividly and naturally recreates recordings and has a uncanny ability to compliment any turntable
- Cartridge Compatibility: Moving Magnet or High output Moving Coil Gain: 38.9 dB gain @ 1kHz with 12AX7 Tube Input Impedance: 47k ohms Output Impedance: 8-200 ohms Headphone, 100 ohms RCA
- Equalization: RIAA +/- .9 dB, 20Hz to 20kHz THD .05% @ 1KHz S/N Ratio: 103 dB, unweighted Crosstalk: -75 dB Size: 6″w x 2.5″h x 5.4″d
- “I was surprised by how attractive and well balanced it sounded: smooth and warm, yet open and crisply detailed
- You need vacuum tubes in your life, and the 12AX7 tube in the VP130 is the perfect audio upgrade to your system.
- Surface noise was low, and the music emerged from a crisp, clean, quiet background
- The Bellari seemed to create a sound that was rich, natural and appealing
- “The Bargain of a Lifetime Tube Phono Stage
- An excellent performer at a very reasonable price!” – Jimmy Hughes, HiFi
- It was an excellent sound by almost any standards; one I was very happy to listen to
- The Bellari VP130 further defines its position as the price-to-performance world-beater, do-everything-well, high fidelity phono preamplifier
4. MUZISHARE X7 KT88 x4 Push-Pull Vacuum Tube Integrated Amp Power Amplifier MM Phono amp Remote Upgrade -ElectronicsBy MUZISHARE
- can be connected to the Phono player
- Pure Handmade,point to point hand welding using two high-quality wide-frequency high-quality Japanese EI output transformer using a high-power Z11 core toroidal power transformer dedicated designed for the machine ， voltage amplification and promote are used tube 5AR4 for rectifier power supply.
- with the phono function
- pure and sleek
- With pure power amplifier features
- suitable for enjoying vocals
- This is also a Power Amplifier (there is a group pre-amp input), a Headphone amplifier and this is a amplifier for Phono player too, direct link your phono player to this amplifier to output to speakers.
- Peripheral power tube current adjustment knob and current display meter
- the sound of open
- Provide Triode and Ultralinear selection function: Triode work mode
- MUZISHARE X7 is an integrated Amplifier
- the momentum is good
- MUZISHARE X7 Upgraded version
- large dynamic type of music
- Use 12AX7 and 12AU7 vacuum tube for voltage amplification and phase inversion,use KT88 vacuum tube to do AB1 push-pull power amplification; Mute delay function when turn on the amp(about 30 seconds) ；the choice of Japanese ALPS motor potentiometer
- Upgraded the internal coupling capacitor, is the designer to debug the custom-made silver film capacitor, relative to the classic version of the extension, control, density is better.
- can be linked the pre-amp signal input
- for large scenes
- strings Music and other types of music; Ultralinear work
5. Riverstone Audio – Tested/Matched Pair (2 Tubes) 7-Pin GE JAN 5654W Fully-Tested Vacuum Tubes – Upgrade for 6AK5 / 6J1 / 6J1P / EF95 – JAN 5654W Platinum Grade Pair -ElectronicsBy Riverstone Audio
- We guarantee that the GE 5654W tubes selected for these matched pairs test at NOS levels at or above 4400 micro-mho and a plate current of 6.4 mA or higher.
- The 5654W tubes are NOS and were obtained from factory-sealed military surplus boxes.
- All tubes we must also pass a specialized life test and an audio sound test
- Our experienced engineers match vacuum tubes for BOTH plate current and mutual conductance
- Considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use
- TESTED and MATCHED Pair (2 tubes) of low-noise 7-Pin NIB/NOS GE JAN 5654W Vacuum Tubes
- THE BEST WARRANTY AVAILABLE in the audio tube business
- RIVERSTONE AUDIO utilizes the best available equipment (Amplitrex AT1000) to test and match audio tubes
- *****IMPORTANT***** AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE
- ***All vacuum tubes sold by Riverstone Audio will have the “Riverstone Audio” name, logo and QC label on the boxes***
- 5654W tubes should only be used to directly replace 7-Pin 6J1, 6J1P / 6J1P-EB / 6Zh1P-EV, 6AK5, 6AK5W and EF95 tubes
- We reject 50% to 60% of the tubes we test
- We have been testing and using vacuum tubes for many years and know what it takes to select the best vacuum tubes for long life low-noise audio applications.
- These vintage US manufactured GE tubes are Mil
- TEST RESULTS ARE PROVIDED WITH ALL TUBES SOLD BY RIVERSTONE AUDIO
- 4 YEAR WARRANTY – BUY WITH CONFIDENCE – All vintage vacuum tubes sold by Riverstone Audio are backed by our no-nonsense 4-YEAR warranty
- (JAN) Electron Tubes – Higher Durability and Life
- THE VACUUM TUBES WE SELL ARE 100% TESTED WITH DOCUMENTED TEST RESULTS ATTACHED TO EACH TUBE BOX
- We do not recommend purchasing vintage vacuum tubes unless actual test results are provided with the tubes
- UNLESS SPECIFICALLY PERMITTED BY YOUR AMPLIFIER MANUFACTURER DO NOT SUBSTITUTE FOR ANY OTHER TYPE OF 7-PIN TUBE.
- Suitable for MM and MC cartridges
- Front-sided Subsonic filter button
- 2x ECC83 tubes (replaceable)
- Fully discreet circuit design without OpAmps
- Precise RIAA equalization in two parts, passive/active
7. P1 Bluetooth 5.0 GE5654 Vacuum Tube Preamplifier Hi-Fi Valve Headphone Amplifier Wireless Receiver Audio Decoder Preamp USB DAC APTX-HD [Upgrade] -ElectronicsBy Douk Audio
- With 3 kinds of audio input(Bluetooth/USB/RCA) and 2 kinds of output(RCA/3.5mm headphone), P1 can be used as HiFi tube Preamp, USB DAC or headphone amp with HiFi clear, warm, dynamic, sweet tube sound, bringing extremely high-quality listening experience.
- Bluetooth 5.0 (QCC3034) supporting APTX-HD lossless transmission
- Douk Audio P1 Preamp has been acclaimed by countless audiophiles worldwide, now we upgrade 6J5 to JAN5654 / GE5654 tubes according to many audiophiles’ feedback, the sound quality will be greatly improved.
- Exquisite appearance with proper size, blue and orange light decorating vacuum tube, makes it fashionable and attractive, bringing wonderful auditory and visual enjoyment, very suitable for home and desktop audio system.
- PC-USB (CM6642) supporting 24bit 192KHz and compatible with Windows/Mac/Linux system, matching well with many audio devices such as iPod, Phone, MP3 players, TV, Blu-ray players, Echo Dot, CD players, etc.
- Adopting NE5532 op amp+classic 47 headphone amp architecture which can drive 32-300 ohms headphones, and a bypass switch is specially designed to turn on/off the tone control, more convenient to enjoy original sound or obtain more delicate sound with treble and bass control knob, adding much fun and higher playability.
8. Fosi Audio P1 Tube Pre-Amplifier Mini Hi-Fi Stereo Preamp 6K4 Valve Vacuum Pre-amp with Treble Bass Tone Control for Home Theater HiFi System -PreamplifiersBy Fosi Audio
- 🍎 NOTE: This is a preamplifier, not a power amplifier or phono preamp, can’t be used for turntables or passive speakers.
- All aluminum alloy shell and come with a 18-month manufacturer’s warranty.
- Small compact design, with optimal integrated circuit to get powerful, dynamic and sweet sound
- Tubes can be replaced by 6K4,6AK5,EF95, 5654,403B tubes.
- Built-in Switch impact protection circuit and overheat protection circuit, long life span of this unit
- This pre-amp improves everything detail, transparency, immediacy, richness, tone associated with your music.
- RCA input to the computer, CD, phone, iPod and other player and RCA output to the digital amplifiers, active multimedia audio devices for lossless audio(The RCA cables not included).
- frequency response: 5 hz – 198 khz +/- 3 db
- input impedance: 10k ohms
- s/n ratio: 103 db, unweighted
- thd: 0.1%
- Power source type: DC power supply included
- max output gain: 11.1 db
- Dimensions: 5.0″D x 5.5″W x 2.0″H
- 1 year warranty
- Weight: 1.5 lbs
- Rugged all-steel construction
- Designed for years of continuous, reliable performance
11. Fosi Audio Box X1 Phono Preamp for MM Turntable Mini Stereo Audio Hi-Fi Phonograph/Record Player Preamplifier with 3.5MM Headphone and RCA Output with DC 12V Power Supply -Phono PreampsBy Fosi Audio
- You can enjoy high-quality music with headphones through the 3.5 mm headphone output
- Designed with grounding post to protect your turntable.
- What You Get: BOX X1 phono preamp x1, 12V power adapter x1, User manual x1, 18-Month global warranty, and 24-Hour quick customer service.
- Converts Phono Signals: Compact ultra-low noise phono turntable preamp that converts phono signals to line level signals
- Note: You can connect a power amplifier through the 3.5MM or RCA output, then connect the passive speakers.
- Features Power Switch & 3.5MM Headphone Output: The unique power switch button design is very convenient to use
- Note: RCA line output and AUX headphone output can be output simultaneously.
- 3.5MM / RCA Output: BOX X1 supports MM turntable input, 3.5MM headphone output and RCA line output for powered speakers
- Equipped with DC12V high quality power supply.
- MM Phono Preamplifier & DC12V Power Adapter: Output Voltage Level: 2V max (P-P) at 10K Ohms, SNR: 70dB, THD: ≤0.08% @ 1kHz and 3mV, Frequency Response: Standard RIAA
- 5654W tubes should only be used to replace 7-Pin /6Ж1/6J1/6J1P / 6J1P-EB / 6Zh1P-EV/6AK5/ 6AK5W and EF95 tubes
- (JAN) Electron Tubes – Higher Durability and Life.
- DO NOT SUBSTITUTE FOR ANY OTHER TYPE OF 7-pin tube.
- Tested and matched Pair tube (2PCS) of low-noise 7-Pin United States GE JAN 5654W are considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use
- AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE
- These vintage US manufactured GE tubes are Mil
- RIAA curve accuracy: +/- 0,2dB/20Hz – 20kHz Subsonic filter: 20Hz @ 18dB/octave Input / Output: 2x R
- Signal-to-noise ratio: 88dBA THD: < 0,04%
- Gain: MM / MC 40 / 45 / 50 / 60 / 65 dB Output voltage: typically 500 mV/1kHz at 5mV/1kHz (at 40dB)
- Tube assembly: 2x ECC83 (12AX7) Input impedance variable: 10-1000 Ohms, fix 47 kOhms
- Capacitance: 100 / 220 / 320 pF
14. Fosi Audio Box X4 Phono Preamp Headphone Amplifier/Preamplifier Hi-Fi Pre Amp with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Record Player with Volume Bass Treble Control -Phono PreampsBy Fosi Audio
- Designed with a grounding post to protect your turntable.
- Applicable Vacuum Tube Model: 6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc
- What You Get: BOX X4 phono preamp, DC 12V power supply, user manual, our worry-free 18-month warranty, and friendly customer service.
- Next-generation phono preamp for unrivaled sound quality.
- Different tubes with different sounds.
- You can replace the vacuum tubes to DIY your stereo system
- JAN 5654W Tube MM Phono Preamplifier: The BOX X4 phono preamp supports 3.5MM AUX and MM turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality
- 2022 NEW MODEL: The updated version for BOX X2
- Tube Headphone Amplifier & Preamplifier: The BOX X4 is designed with a 3.5MM AUX headphone and RCA output, highly useful beyond imagination.
15. JOYO 2.4GHz Wireless Guitar System 4 Channels Rechargeable Audio Wireless Transmitter Receiver for Guitar Bass Electric Instruments (JW-03) -Musical InstrumentsBy JOYO
- Clear Quality Signal Transmission——2.4GHz band is optimal for guitar wireless system,low noise,low latency(less than 5mS), no interference, over 20 meters transmission distance.
- Easy to Pair——Turn on the transmitter and the receiver, press the pairing button of the receiver,then press the pairing button of the transmitter for more than 2 seconds,then they’re paired successfully.
- User-friendly——The double-sided USB cable can charge the transmitter and receiver simultaneously,easy to switchover between the 4 signal channels.
- High Compatibility——The plugs can be rotated for 220 degrees, compatible for most electric guitars, bass, acoustic guitars and other digital music instruments, the device are approved for worldwide use.
- Long Battery Life——Built-in battery with over 8 hrs battery life once fully charged, enough to enjoy the wireless world in your gig.
- Gain control and tube drive saturation control
- 12AX7 tube-based preamp with XMAX solid-state input stage
- Phantom power, HP filter, -20 dB pad, and polarity-reverse
- Low-noise dual-servo (no capacitors) gain stage
- Separate instrument and mic inputs
17. HiFi Stereo Bluetooth 5.0 Vacuum Tube Amplifier MM Phono Amp for Turntables 320W -Industrial & ScientificBy Douk Audio
- Bluetooth 5.0 & Stereo RCA & MM Phono inputs: MM phono input, converts phono signal to line level signal and amplify it, with low-noise integrated circuits and high-quality components to ensure clear and clean sound
- Super large output power & low frequency output: adopting TDA7498E amp IC whose max output power can reach 160W+160W(4Ω), and equipped with 32V/5A power supply, easily to drive most home passive speakers
- And adding subwoofer output, convenient to connect active subwoofer and build 2.1 stereo audio system.
- 3.5mm AUX input, amplify the low level audio signal from your phone, tablet, MP3 etc
- Pluggable tube socket for tube rolling and sound-shaping, easy to pick from and alter the sound signature to one’s preference.
- and provide enough output power for passive speaker, greatly improve the sound quality.
- A bassboost switch is specially designed to greatly enhance bass effects, the shocking auditory effects make you feel like in the cinema.
- JAN5654 vacuum tube & HiFi Sound: default with JAN5654 tubes, improves everything associated with your music such as detail, transparency, immediacy, richness, dynamic, tone etc., much better than 6J1 series especially in human voice
- Exquisite Appearance & Proper Size: metal black case and vacuum tube with blue and orange decorating light looks fashionable and attractive, designed input switch / bass and tone pass & bypass switch, very convenient to use and suitable for stereo home and desktop audio system.
- Perfect Design & Powerful function: with tone control, easy to get more smooth and delicate sound by adjusting treble and bass knob, and bypass function is added to enjoy original sound
18. 7-Pin GE JAN 5654W Tested/Matched Pair (2 Tubes) Vacuum Tubes Upgrade for 6J1 / 6J1P / 6J1P-EB / 6Zh1P-EV / 6AK5 / 6AK5W / EF95-5654W Perfect Matched Pairing Tubes Electronic Valve Tube AMP -Phono PreampsBy KOMITASUI
- & MK II / MK 2 Amplifier,Direct Replacement For 6J1 Tube Designed For Long Life, Heavy Duty Cycle Military Specification Grade (JAN) , Considered one of the best of the 5654 / 6AK5 / EF95 family of Vacuum Tubes for audio use.
- 5654W tubes are NOS，We are selling new stock tubes.
- Hear the difference, enjoy your music!
- ️ Tested and matched Pair tube of low-noise 7-Pin United States GE JAN 5654W, Higher Durability and Life
- All tubes we must also pass a specialized life test and an audio sound test
- ️ Made In The USA, By General Electric, Perfect Upgrade For Little Dot I
- Our experienced engineers match vacuum tubes for BOTH plate current and mutual conductance
- It can used for WE-403A/403B/EF95 Matched Vacuum Tubes replacement.
- ️ Perfect quality, high cost performance For used to directly replace 7-Pin 6J1 / 6Ж1 / 6J1P / 6J1P-EB / 6Zh1P-EV / 6AK5 / 6AK5W and EF95 tubes
- ️ Each package contains a pair of US-manufactured GE JAN 5654W vacuum tubes(2 PCS).The packaging you receive is professionally designed to be very sturdy to prevent damage during transportation.
- It can also replace 6J2/6J3/6J4/6J5 and ordinary 5654
- ️ Platinum Grade Pair GE 5654W Vacuum Tubes show you the difference in natural voice reproduction and simple musical
- They sound more clear with an emphasis on clarity, larger soundstage, and bass response is more noticeable
- INPUTS – Selectable MM and MC cartridge input
- ACCESSORIES – Includes 5V DC power supply and RCA cable
- CUSTOMIZE TO YOUR TURNTABLE SETUP – Ultrawide 36dB to 72dB gain
- OUTPUTS – RCA and Balanced 4.4mm Pentacon Outputs
- INTELLIGENT – subsonic analog filter
20. GOgroove Mini Phono Turntable Preamp Preamplifier with 12 Volt DC Adapter , RCA Input for Vinyl Record Player – Compatible With Audio Technica , Crosley , Jensen , Pioneer , 1byone and More Turntables -ElectronicsBy GOgroove
- NECESSARY FOR CONNECTING TURNTABLE to newer speakers and receivers that do not have a phono input
- CONVERTS TURNTABLES PHONO SOUND QUALITY to line level for better sounding audio and volume | 1/4 HEADPHONE PORT lets you plug in and listen directly to music (no volume control)
- EASY TO SET UP OUT OF THE BOX for a simple hook up the preamp to both turntable and audio device so you can enjoy vinyl in no time | ULTRA-LOW NOISE OPERATION for better sound and less distortion
- COMPACT DESIGN fits on your bookshelf, desk, table so you can connect your turntable to your stereo receiver, speakers, or other audio device in any spot| Powered with 12 Volt DC Adapter (included)
- CONNECT GND WIRE from turntable to preamp for best sounding audio | BACKED BY 3 YEAR MANUFACTURER’S WARRANTY
- RIAA EQUALIZATION boosts the volume signal for balanced, clear audio
- Power: 12V DC (Adapter included)
- Ground terminal
- Dual RCA-type outputs
- Dimensions: 1.75 H x 4.2 W x 3.5 inches D (44.5 x 107 x 89mm)
- Dual RCA-type inputs
12ax7 tube for phono preamp – The Buyer’s Guide
You must have checked the above list, aren’t you mind-blown by the quality of products? Well, if you are then here’s a secret formula which we’ve used to choose them. You can use them too! The best part is, it works for all the product purchases you make! Besides, wouldn’t it be helpful to you, if you knew the factors we’ve considered to choose the 12ax7 tube for phono preamp in the above list? So shall we begin with the guide and help you learn about the important factors?
1. Does it have the features you need?
Wait for a minute before you buy the 12ax7 tube for phono preamp, check if it has all the features in your requirement list! If it doesn’t have them, then you should avoid buying that particular model and start looking for an alternative. We always suggest our editors to make a list of important features before adding a product to a list and based on the feature, the quality of the product, brand-assurance, rank it! So if it has all you need, you should not mind paying a bit extra. However, if you end up buying the best 12ax7 tube for phono preamp which doesn’t have the feature you need the most, then it won’t make sense! Would it? To us, it wouldn’t! That’s why you should make up a list which includes the features you are looking for, technical specifications if any, etc and come up with a budget.
2. Budget and Price Match
Well, you obviously can’t buy the best 12ax7 tube for phono preamp with a low budget. That’s why it’s important to make note of all the important features, specs, factors and come up with a budget. Once you are ready with it, look for the products which are either equal to your budget or are close to it. Stick to the budget, because while browsing, you’ll see a model which is slightly better and has an additional feature with a really small price difference. Well, in that case you’ll have to calculate the price of the product which has all the required features and the 12ax7 tube for phono preamp with the additional features. See if the difference in amount is worth for the feature? If you don’t have second thoughts, you shall probably increase your budget.
3. Warranty and Brand
Most of the 12ax7 tube for phono preamp industry experts we got in touch suggested us to always buy the one which comes from a reputable brand. They also explicitly asked us to include the best brands so that users don’t buy the models from unknown brands or non-reputable companies. Because 12ax7 tube for phono preamp from an unknown brand might be cheap at first glance, but could have high-maintenance and could cost a lot in repairs.
Another benefit of buying a 12ax7 tube for phono preamp from a reputable brand would be warranty. Most of the 12ax7 tube for phono preamp from reputable brands come with good warranty. However, cheap products do come with a warranty, but claiming it can be a herculean task. That’s why buy the models which come from known brands and have good warranty.
4. Check for Reviews and Ratings
Back then when the Internet wasn’t as big as it is today, local stores charged high and even ended up selling the products which sucked or wasn’t future proof. It’s because the salesman threw technical terms and confused the buyer. But nowadays, there are sites like ours which does all the research and lists down the best models and there are eCommerce stores like Amazon which has user reviews which can be read to know the experience of the user with that particular 12ax7 tube for phono preamp. Isn’t it great?
We hope that you loved the 12ax7 tube for phono preamp we’ve listed in our best list. If it has been helpful, please bookmark our website and share it with people you know whenever they plan to buy something.
To wrap up this guide,
- If you are looking for the best 12ax7 tube for phono preamp: You shall consider going for Nobsound 12AX7 (ECC83) 12AU7 (ECC82) Vacuum Tube Preamp HiFi Preamplifier
- If you want the one which has similar features to the best, then you shall consider going for Nobsound Little Bear T11 6N2/12AX7 Vacuum&Valve Tube Phono Turntable Preamplifier; MM RIAA LP Vinyl Record Player Preamp; Stereo HiFi Audio Pre-Amplifier
- If you want a 12ax7 tube for phono preamp which is “value for money” then you shall go for the Nobsound Little Bear T11 6N2/12AX7 Vacuum&Valve Tube Phono Turntable Preamplifier; MM RIAA LP Vinyl Record Player Preamp; Stereo HiFi Audio Pre-Amplifier
- If you want the cheapest 12ax7 tube for phono preamp then the 7-Pin GE JAN 5654W Tested/Matched Pair (2 Tubes) Vacuum Tubes Upgrade for 6J1 / 6J1P / 6J1P-EB / 6Zh1P-EV / 6AK5 / 6AK5W / EF95-5654W Perfect Matched Pairing Tubes Electronic Valve Tube AMP should be the best one for your needs!