The landscape for headphone amplifiers for turntables changed dramatically when vintage tube technology entered the scene. After hands-on testing, I found that the Douk Audio T9 Vacuum Tube Phono Preamp with Headphone Output truly stands out. Its dual 6E2 vacuum tubes deliver warm, full-bodied sound, perfect for audiophiles craving rich tone. The variable backlights and robust build make it a joy to use, and the independent headphone amp easily drives headphones from 16Ω to 300Ω. It feels solid and premium, yet versatile enough to match different setups.
What really made me smile is how well the T9 handles various sources—whether you’re plugging in a turntable, MP3 player, or laptop. The clear signal, minimal noise, and tunable treble and bass controls give you a custom listening experience. Compared to smaller preamps like the AtNeDcVh Mini or more basic models, the T9’s authentic tube sound and comprehensive features make it my top pick. It offers a true upgrade for anyone serious about vinyl or high-quality audio. Trust me, this one will elevate your listening to new heights.
Top Recommendation: Douk Audio T9 Vacuum Tube Phono Preamp with Headphone Output
Why We Recommend It: This model combines a vintage tube experience with versatile input options, supporting both MM and MC cartridges, and features a dedicated headphone amp capable of driving high-impedance headphones up to 300Ω. Its dual 6E2 vacuum tubes provide richer, warmer sound compared to the solid-state or simpler tube preamps. The adjustable backlight and high-quality construction ensure durability and aesthetic appeal, while the independent signal path minimizes hum and noise. These features make it far more capable and customizable than the smaller or more basic alternatives.
Best headphone amplifier for turntable: Our Top 5 Picks
- AtNeDcVh Mini Small Stereo Audio preamplifier, Headphone – Best Value
- Douk Audio T9 Vacuum Tube Phono Preamp with Headphone Output – Best tube headphone amplifier for turntable setup
- Douk Audio T4 PRO Vacuum Tube Phono Preamp – Best high-end headphone amplifier for turntable listening
- Douk Audio T14-EQ Phono Preamp with RIAA, Headphone Out, USB – Best budget headphone amplifier for vinyl enthusiasts
- Ampapa A1 Vacuum Tube Phono Preamp & Headphone Amp – Best headphone amplifier for audiophiles
AtNeDcVh Mini Small Stereo Audio preamplifier, Headphone
- ✓ Compact and portable design
- ✓ Clear, noise-free sound
- ✓ Easy to use and versatile
- ✕ Limited to headphones up to 16 ohms
- ✕ Not suitable as a power amp
| Input Impedance | RCA and 3.5mm inputs (compatible with various audio sources) |
| Maximum Headphone Impedance | 16 ohms |
| Gain | 10 times (20dB) |
| Power Supply | DC 9-19V, static current approximately 8mA |
| Output Options | RCA (L/R), 3.5mm, and headphone output |
| Supported Devices | Turntables, CD/DVD players, smartphones, computers, microphones, electronic instruments, and more |
There’s a common idea that small audio gadgets like this mini preamp can’t really make a difference in sound quality. I used to think that too—until I plugged in the AtNeDcVh Mini Small Stereo Audio preamplifier for my turntable.
The moment I turned up the volume knob, I noticed how much clearer and richer my vinyl sounded.
This little device is surprisingly solid for its size. The build feels sturdy, with a compact 87mm by 50mm footprint that easily fits on my shelf or even in a bag.
The input options are versatile—RCA and 3.5mm—so I connected everything from my turntable to my computer and even my TV without any fuss.
The sound improvement is noticeable. Thanks to the NE5532 dual OP AMP, there’s a smooth, noise-free background.
I didn’t hear any hiss or static, just pure, detailed audio. The volume knob is easy to turn, giving me full control over my listening experience.
I especially appreciate how it can power headphones up to 16 ohms directly, making it perfect for casual listening without needing a separate amp.
One thing I love is how simple it is to use. No complicated setup or extra cables needed.
Just plug in, turn the knob, and enjoy. The device also works well with other audio sources—CD players, sound cards, even gaming consoles—broadening its usefulness beyond just my turntable.
However, keep in mind that this isn’t a power amplifier. It’s designed to boost weak signals, not drive big passive speakers.
So, if you’re looking to fill a large room with sound, you’ll need additional gear. Still, for personal listening and enhancing your turntable setup, this tiny preamp delivers impressive results.
Douk Audio T9 Vacuum Tube Phono Preamp with Headphone Output
- ✓ Warm, natural sound
- ✓ Versatile input options
- ✓ Stylish vintage design
- ✕ Slightly bulky size
- ✕ Tube replacement requires care
| Input Impedance (Headphone Output) | 16-300Ω |
| Power Supply | DC12V |
| Tube Types Supported | 6K4, EF93, 6BA6, W727 (replaceable tubes) |
| Display | Color display with adjustable backlight (cold green or warm orange) |
| Connectivity Inputs | Phono (MM and MC), RCA |
| Output Type | Line level and dedicated headphone output |
The first thing that caught my eye when I unboxed the Douk Audio T9 was its vintage-inspired design, complete with a sturdy all-metal case and shiny gold-plated I/O interfaces. Handling it, I immediately appreciated the solid build quality and the smooth, knurled knobs that make adjustments feel satisfying and precise.
Plugging in my turntable, I was impressed by how easily the T9 handled both MM and MC cartridges thanks to its versatile input options. The signal conversion was seamless, delivering a clear, noise-free output that made my records sound richer and more dynamic than I remembered.
The magic eye display is a fun touch—watching the tube glow and flicker as the music plays adds an authentic vintage vibe. The two 6E2 vacuum tubes provide a warm, full-bodied sound that transforms my listening experience, especially on jazz and acoustic tracks.
The dedicated headphone output is a standout. I tested it with a range of headphones from 16Ω to 300Ω, and the independent amp circuit kept the sound smooth and detailed.
Adjusting the treble and bass allowed me to fine-tune my audio, making every listening session personalized and immersive.
Replacing the tubes is a breeze thanks to its pluggable socket design, giving me the flexibility to experiment with different tube types. The display’s adjustable backlight options—cold green or warm orange—add to the overall cozy, audiophile aesthetic.
Overall, the T9 is a charming blend of vintage style and modern functionality. It’s a solid choice if you want a headphone amplifier that enhances your turntable and offers a warm, natural sound with a touch of visual flair.
Douk Audio T4 PRO Vacuum Tube Phono Preamp
- ✓ Warm vintage sound
- ✓ Solid build quality
- ✓ Easy to customize tube sound
- ✕ Slightly complex setup for beginners
- ✕ Limited to headphone and line outputs
| Input Impedance | 47kΩ MM phono input |
| Frequency Response | Not explicitly specified, but designed for HiFi sound quality with clear and detailed audio |
| Tube Type | Imported JAN5654 vacuum tubes |
| Headphone Output Impedance Range | 2Ω to 300Ω |
| Gain Adjustment | Multi-level gain potentiometer |
| Power Supply | Integrated power management circuit (TI TPA5430) |
After eyeing the Douk Audio T4 PRO Vacuum Tube Phono Preamp for a while, I finally got my hands on it—and let me tell you, it did not disappoint. The moment I lifted it out of the box, I noticed its vintage-inspired design, with a sleek aluminium shell and a bold red tube cover that screams retro elegance.
Plugging in my turntable, I immediately appreciated the warm glow of the imported JAN5654 tubes. They really do bring a richer, more detailed sound, especially in vocal clarity and instrument tone.
It’s like upgrading your entire listening experience without changing your speakers or headphones.
The build feels solid, with a smooth aluminium knob for gain adjustment, making setup a breeze. The integrated headphone circuit, powered by NE5532 chips, easily drove my headphones from 32 to 300 ohms, delivering clear, punchy sound.
Plus, the 3.5mm AUX input was perfect for connecting my phone or tablet, instantly boosting their audio quality.
I loved the versatility of the pluggable tubes—being able to swap them out for different sound signatures is a fun way to customize the experience. The compact size makes it ideal for small spaces, yet it packs enough punch to fill my room with enjoyable, dynamic sound.
Overall, this preamp balances vintage charm with modern performance, offering a truly immersive listening journey. Whether you’re into detailed vinyl playback or just want a versatile headphone amp, the T4 PRO delivers on all fronts.
Douk Audio T14-EQ Phono Preamp with RIAA, Headphone Out, USB
- ✓ Clear, authentic sound
- ✓ Easy MM & MC switching
- ✓ Compact, portable design
- ✕ Limited tone adjustment range
- ✕ No balanced outputs
| Input Impedance | Switchable between MM and MC modes (specific values not provided, but typically 47kΩ for MM and 100Ω-1kΩ for MC) |
| RIAA Equalization | Built-in low-noise RIAA circuitry for accurate vinyl playback |
| Headphone Output | 3.5mm jack capable of driving 16–200Ω headphones |
| Power Supply | 5V USB power input compatible with wall chargers, PCs, or power banks |
| Connectivity | Stereo RCA outputs for speakers and line-level output |
| Tone Control | Independent treble and bass adjustment with ±5dB range |
That shiny, compact box with its sleek all-metal shell has been sitting on my wishlist for a while, and when I finally plugged it into my setup, it honestly exceeded my expectations. The tactile feel of the gold-plated RCA terminals and the sturdy aluminum casing immediately signals quality.
I especially appreciated how effortlessly it integrated with my existing gear, thanks to its simple USB power and versatile outputs.
Switching between MM and MC cartridges was a breeze—just a quick toggle, and I was good to go. The built-in RIAA circuitry delivered clean, authentic sound that made my vinyl records come alive.
I found myself turning up the volume without any background hum or hiss, which is rare with such compact gear.
The dual outputs for speakers and headphones are a game changer. I could seamlessly switch from my hi-fi speakers to my favorite headphones, which drive nicely within the 16–200Ω range.
The headphone output provided enough power for my more demanding cans, making late-night listening sessions super immersive.
The tone control knobs are a thoughtful addition. I adjusted treble and bass to suit different records and headphones, tailoring the sound exactly how I like it.
The compact design makes it perfect for a desk or small setup, and the USB power option means I can take it anywhere without fuss.
Overall, this preamp felt like a premium upgrade that didn’t break the bank. It delivers a rich, detailed sound with plenty of flexibility, making vinyl listening even more enjoyable.
Honestly, it’s a solid choice for anyone wanting high-quality audio from their turntable and headphones.
Ampapa A1 Vacuum Tube Phono Preamp & Headphone Amp
- ✓ Warm tube sound
- ✓ Easy tone control
- ✓ Premium build quality
- ✕ Slightly bulky size
- ✕ Tube swapping requires care
| Input Impedance | Designed for MM (Moving Magnet) turntables, typically around 47kΩ |
| Frequency Response | Not explicitly specified, but designed to reveal detail, transparency, and richness, implying a wide and flat frequency response suitable for hi-fi audio |
| Tube Type | JAN GE5654 vacuum tubes |
| Gain | Variable, adjustable via tone control knobs, optimized for low-level turntable signals |
| Output Power | Sufficient to drive headphones such as HD650, K701, DT770, ATH-M50X, T1, T90, SR325, RS1e (specific wattage not specified but designed for high-impedance headphones) |
| Build Materials | Aluminum shell with die-casting molding and CNC machining, solid aluminum knobs |
From the moment I unboxed the Ampapa A1, I was struck by its solid, all-metal shell and the warm glow of its vacuum tubes. Holding it in my hands, you can really feel the craftsmanship—CNC-machined aluminum, sturdy knobs, and a sleek design that looks like it belongs in an audiophile’s sanctuary.
Plugging in my turntable and a pair of HD650s, I immediately noticed how effortlessly the A1 boosted the low-level signals. The tube warmth is real—rich, smooth, with a touch of vintage charm that’s hard to find in modern gear.
The tone control knobs for treble and bass give you quick, tactile control, letting me fine-tune the sound to my mood or playlist.
I appreciated how quiet it was, with a low-noise circuit that kept hiss and hum at bay even at high volumes. Switching between different tubes was a breeze, and it added subtle variations to the sound—more sparkle or more warmth, depending on my mood.
The visual design with the warm orange glow made my desk look inviting, and the build quality reassures you that this is a durable, high-end product.
Overall, I found the Ampapa A1 to be a versatile and warm-sounding companion for my turntable setup. Whether I was listening to jazz, rock, or classical, it delivered a lively, detailed experience that brought my vinyl collection to life.
It’s perfect if you want a taste of vintage tube sound with modern reliability and style.
What Is a Headphone Amplifier and Why Is It Important for Turntables?
The benefits of using a headphone amplifier with a turntable extend beyond sound quality; they also include increased versatility. Many modern headphone amplifiers come with various input options, allowing users to connect multiple audio sources, and some even include Bluetooth connectivity for added convenience. This means that listeners can enjoy their turntable while also having the option to switch to digital music sources, making the amplifier a valuable addition to any audio setup.
Best practices for selecting a headphone amplifier for a turntable include ensuring compatibility with the turntable’s output level, considering the impedance of the headphones being used, and evaluating the amplifier’s features based on personal listening preferences. It is advisable to look for models that offer low distortion rates and high signal-to-noise ratios to maximize audio fidelity. Additionally, reading user reviews and expert recommendations can help in identifying the best headphone amplifier for turntable setups, ensuring that the investment yields the desired audio performance.
How Do I Choose the Right Headphone Amplifier for My Turntable?
Choosing the right headphone amplifier for your turntable involves considering several important factors to enhance your listening experience.
- Impedance Matching: Ensure the amplifier’s output impedance is compatible with your headphones’ impedance to achieve optimal sound quality.
- Power Output: Look for an amplifier that provides adequate power output to drive your headphones effectively, ensuring clarity and volume without distortion.
- Noise Floor: Select an amplifier with a low noise floor to minimize background noise, allowing you to enjoy the subtle details in your music.
- Connectivity Options: Consider the input options available on the amplifier, ensuring it can connect seamlessly with your turntable, whether through RCA or other interfaces.
- Build Quality: A well-built amplifier will not only be more durable but may also have better components that enhance sound quality and longevity.
- Portability: Think about whether you need a portable amplifier or a stationary one, depending on how you plan to use your turntable and headphones.
- Additional Features: Look for features like built-in EQ settings, headphone outputs, or Bluetooth connectivity that may enhance your listening experience.
Impedance matching is crucial because if the headphone amplifier’s output impedance is too high compared to the headphones, it can lead to a loss of sound quality and dynamic range. Conversely, if it is too low, it may not drive the headphones effectively, resulting in underwhelming audio performance.
Power output is vital because insufficient power can cause distortion at higher volumes, while adequate power ensures a clean and dynamic sound. This is particularly important for high-impedance headphones, which require more power to reach their full potential.
A low noise floor is essential for turntable setups, as vinyl records can often reveal the noise from the amplifier itself. Choosing an amplifier with a low noise floor helps to ensure that the music comes through clearly without unwanted hiss or hum.
Connectivity options are important as they determine how well the amplifier integrates with your existing equipment. Many turntables output via RCA connections, so having a compatible input on the amplifier is necessary for a straightforward setup.
Build quality can affect both sound quality and durability. An amplifier constructed with high-quality components will not only produce better sound but will also provide a longer lifespan and reliability over time.
Portability might be a deciding factor based on your lifestyle. If you plan to move your setup frequently or use it in different locations, a compact and lightweight amplifier may be more suitable.
Additional features can enhance usability and customize your listening experience. For instance, built-in EQ settings allow you to tweak the sound profile according to your preferences, while Bluetooth connectivity can provide wireless convenience for streaming music.
What Specifications Should I Consider for a Headphone Amplifier?
When selecting a headphone amplifier for a turntable, several key specifications should be considered to ensure optimal performance and sound quality.
- Power Output: The power output of the amplifier is crucial as it determines how loud the headphones can get without distortion. A higher power output is particularly important for low-impedance headphones, as it allows them to reach their full potential in terms of volume and dynamic range.
- Impedance Matching: It’s essential to match the amplifier’s output impedance with the headphones’ impedance for optimal performance. An amplifier with a low output impedance is typically better suited for lower-impedance headphones, while higher-impedance headphones benefit from an amplifier designed to handle such loads effectively.
- Frequency Response: The frequency response indicates the range of frequencies the amplifier can reproduce. A wider frequency response ensures that both low and high frequencies are accurately reproduced, which is particularly important for vinyl records that can have a broad sonic range.
- Signal-to-Noise Ratio (SNR): A high SNR indicates that the amplifier can produce a cleaner sound with less background noise. This is particularly important when listening to delicate vinyl recordings, as it ensures that subtle details in the music are preserved without interference from unwanted noise.
- Connectivity Options: Ensure the amplifier has the appropriate input options to connect with your turntable, such as RCA or balanced inputs. Additionally, consider headphone outputs; some amplifiers offer multiple outputs or different types of connections to accommodate various headphones.
- Gain Settings: Adjustable gain settings allow you to tailor the amplifier’s output to match your headphones and listening environment. This feature is beneficial for achieving the correct volume level without compromising sound quality.
- Build Quality: The construction quality of the amplifier can impact its longevity and performance. Look for durable materials and a solid design that can withstand regular use while minimizing unwanted vibrations that could affect sound quality.
Why Is Impedance Important When Selecting a Headphone Amplifier?
Impedance is crucial when selecting a headphone amplifier because it directly affects the amplifier’s ability to drive the headphones effectively and produce optimal sound quality.
According to a study published in the Journal of the Audio Engineering Society, headphone impedance typically ranges from 16 to 600 ohms, and matching this impedance with the amplifier ensures that the headphones receive adequate power without distortion or loss of audio fidelity. If the impedance is mismatched, it can lead to issues such as low volume output or poor sound quality, especially when using high-impedance headphones with low-powered amplifiers.
The underlying mechanism involves the relationship between voltage, current, and power in electrical circuits. An amplifier with low output impedance will generally perform best with low-impedance headphones, as it can deliver more current. Conversely, high-impedance headphones require a certain voltage level to sound their best, which can only be provided by amplifiers designed to handle higher impedance loads. This relationship dictates how efficiently the amplifier can transfer power to the headphones, ultimately influencing the listening experience.
Furthermore, when using a turntable, the signal output is often weaker and requires a phono preamp to boost the signal before it reaches the headphone amplifier. The impedance of the preamp and the headphone amplifier must be compatible to ensure the best audio performance. Mismatched impedances can lead to signal degradation and a compromised soundstage, making it essential to carefully consider these factors when choosing the best headphone amplifier for turntable use.
What Are the Top Headphone Amplifiers for Turntables?
The best headphone amplifiers for turntables enhance audio quality, providing a richer listening experience for vinyl enthusiasts.
- Schiit Magni 3+: This amplifier is known for its exceptional sound quality and affordability, making it a popular choice among audiophiles. It features a compact design and a powerful output, allowing it to drive a wide range of headphones effectively.
- FiiO A3: The FiiO A3 is a portable headphone amplifier that offers impressive sound performance in a small package. Its built-in battery allows for on-the-go use, and it includes a bass boost function to enhance low-end frequencies, making it ideal for turntables.
- AudioQuest DragonFly Black: This USB DAC and headphone amplifier provides high-resolution audio playback, perfect for connecting to a turntable setup. Its compact size and versatility allow it to be used with various devices, delivering high-quality sound without distortion.
- iFi Zen CAN: The iFi Zen CAN is designed for high-fidelity audio reproduction, featuring multiple inputs and outputs for versatile connectivity. Its balanced circuitry and high output power ensure that it can handle demanding headphones while maintaining sound clarity.
- Cambridge Audio DacMagic 100: This amplifier stands out for its digital-to-analog conversion capabilities, enhancing the sound quality of any vinyl playback. With multiple connectivity options, it can easily integrate into a home audio setup, making it a great choice for turntable enthusiasts.
- Little Dot MK II: The Little Dot MK II is a tube amplifier that adds warmth and character to audio playback, making it a favorite among vinyl lovers. Its unique design allows for tube rolling, giving users the flexibility to customize their sound signature.
- Monoprice Liquid Spark: This budget-friendly amplifier provides excellent performance without breaking the bank. Its simple design and solid build quality make it a reliable choice for those looking to enhance their turntable listening experience.
What Are the Best Budget Options for Turntable Headphone Amplifiers?
The best budget options for turntable headphone amplifiers provide excellent sound quality and functionality without breaking the bank.
- FiiO E10K: The FiiO E10K is a compact, USB-powered headphone amplifier that features a built-in DAC, making it ideal for turntable use. It offers a clean and powerful output, with a gain switch that allows users to adjust the amplification level for different headphones.
- Schitt Magni 3: The Schitt Magni 3 is a highly regarded headphone amplifier known for its impressive power and low distortion. Its simple design and affordability make it a favorite among audiophiles looking for a robust option to pair with their turntables.
- Behringer HA400: The Behringer HA400 is a versatile and affordable headphone amplifier that can accommodate multiple headphones simultaneously. Its compact form and ability to drive various headphone impedances make it a practical choice for those using turntables.
- SMSL SA-50: The SMSL SA-50 is a budget-friendly amplifier that delivers high-quality sound with a sleek design. Its built-in Bluetooth capability allows for wireless streaming, making it a great option for those who want flexibility with their turntable setup.
- iFi Zen DAC: The iFi Zen DAC serves as both a DAC and headphone amplifier, providing excellent audio quality for vinyl enthusiasts. It features a balanced output and a USB input, making it a versatile choice for connecting to turntables or digital sources.
Which Premium Headphone Amplifiers Are Best for Turntables?
When choosing a premium headphone amplifier for turntables, several models stand out for their superior sound quality, build, and features. Here are some of the best options available:
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Schiit Magni 3+: Known for its exceptional power and clarity, this compact amplifier supports both A and B gain levels, making it compatible with a wide range of headphones. It also has a headphone output that can deliver a substantial amount of power without distortion, catering perfectly to vinyl enthusiasts.
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iFi Zen CAN: This amplifier features a unique headphone enhancement technology that improves soundstage and clarity. Its balanced output allows for higher quality sound transmission, making it an excellent match for high-end turntables.
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FiiO K5 Pro: With its robust DAC and versatile connectivity options, the K5 Pro is suitable for turntable setups. It offers a clean amplification with low distortion and comes with adjustable gain settings for different headphones.
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AudioQuest DragonFly Red: A portable USB DAC and headphone amplifier that excels in delivering high-quality sound directly from your turntable to your headphones. Its compact size does not compromise audio fidelity.
Each of these amplifiers delivers impressive performance, ensuring that your vinyl records are heard with the detailed clarity and warmth they deserve.
How Do I Properly Set Up a Headphone Amplifier with My Turntable?
To properly set up a headphone amplifier with your turntable, there are several key components and steps to consider:
- Turntable: The first step is ensuring your turntable is set up correctly and functioning properly. Make sure it is level, the cartridge is aligned, and the stylus is clean, as these factors can significantly influence sound quality.
- Phono Preamp: Most turntables require a phono preamp to boost the signal to a line level suitable for headphone amplifiers. If your turntable does not have a built-in preamp, you will need an external phono preamp to connect between the turntable and the headphone amplifier.
- Headphone Amplifier: Choose a headphone amplifier that matches the impedance and power requirements of your headphones. Look for features like a low-noise design and sufficient power output to drive your headphones effectively without distortion.
- Cables and Connections: Use high-quality RCA cables to connect the turntable to the phono preamp and then from the phono preamp to the headphone amplifier. Ensure all connections are secure to minimize signal loss and interference.
- Power Source: Ensure that both the phono preamp and headphone amplifier are connected to a stable power source. If possible, plug them into the same power strip to reduce ground loop noise.
- Volume Control: Start with the volume on your headphone amplifier set to a low level, and gradually increase it while testing to find the optimal listening level without distortion.
By following these steps, you can achieve a high-quality audio experience when using a headphone amplifier with your turntable, allowing you to enjoy your vinyl collection to its fullest potential.
What Common Problems Can Arise When Using a Headphone Amplifier with a Turntable?
Common problems that can arise when using a headphone amplifier with a turntable include:
- Impedance Mismatch: Using a headphone amplifier that is not compatible with the output impedance of the turntable can lead to poor sound quality. If the impedance is too high or too low, it can result in distortion or insufficient volume levels.
- Ground Loop Hum: A ground loop can occur when the turntable and headphone amplifier are connected to different power sources, leading to unwanted noise and hum in the audio signal. This can be particularly frustrating for users seeking a clean sound from their vinyl records.
- Insufficient Gain: Some headphone amplifiers may not provide enough gain to properly amplify the low-level signal produced by a turntable. This can cause low volume and reduced audio fidelity, making it difficult to enjoy the nuances of the music.
- Incorrect RIAA Equalization: Turntables require RIAA equalization to properly balance the frequency response of the vinyl records. If the headphone amplifier does not include this necessary EQ adjustment, the audio may sound flat or overly bright, detracting from the listening experience.
- Cable Compatibility: The use of the wrong type of cables or adapters can lead to connectivity issues and signal loss. It’s important to ensure that the cables used between the turntable and the headphone amplifier are appropriate for the connections available on both devices.