7HZ - 71
Portable USB DAC & AmpGET 18% GST INPUT
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Why 7HZ is Special
Designed in China
Young Maverick Brand
New on the scene, but bringing seasoned expertise!
This headphone or gear might come from a fresh, up-and-coming brand, but it boasts the quality and innovation of a well-established name.
If you see a product marked as "🥊 Young Maverick Brand”, it means you're getting cutting-edge technology and top-notch performance from a brand that's already making waves in the industry.
Born in 2021
Why we love this DAC/Amp
Value for Money
Great sound always doesn't have to come with a fancy price tag.
Every once in a while we come across a product that give you a lot more value for the price.
If you see products marked as "🥜 Value For Money" you can be sure you're getting a great bang for your buck.
Ideal for Beginners
Lost in the Audio Maze? Let Us Guide Your Beginner Audiophile Journey!
If you are a newcomer in the audio world, this headphone or gear is a stepping stone for those overwhelmed by the plethora of options available.
If you see a product marked with “🌱 Ideal for Beginners," it indicates that this device is perfect for starting your audiophile journey.
For Audiophiles On-the-Go
Are you an audiophile looking to carry your music with you wherever you go?
This headphone or gear is portable and is designed to deliver top-notch audio quality on the move, ensuring your favourite tracks sound their best no matter where you are.
If you see a product marked "🛺 For Audiophiles On-the-Go", it means this product is perfectly portable, turning every journey into a musical adventure with studio-quality sound!
Works Great with Type-C
Don’t have a 3.5mm headphone jack on your phone? Don’t worry we got you covered.
This headphone or gear is fully compatible with Type-C USB connectors. Not only do they seamlessly connect to your device without needing an additonal dongle or adapter and ensures optimal performance without any hassle.
If you see a product marked as “📱 Works Great with Type-C”, you can be confident that you'll experience seamless connectivity with a universal connection standard that simplifies your audio setup.
Why it Sounds Amazing
DAC Chip
Know the secret to your pristine audio.
This headphone or gear reveals the secret sauce behind superior audio quality, highlighting the presence of a high-performance DAC chip for pristine sound reproduction.
If you see products marked as “⚙️ DAC Chip”, expect to experience your music with unparalleled clarity, detail, and fidelity, ensuring that every note and nuance is faithfully reproduced for your listening pleasure.
Power Output
When you need that juice to get the best out of your products.
This headphone or gear packs a punch, revealing the product's impressive power output capabilities, ensuring it can handle even the most demanding products with ease.
If you see products marked as “🚀 Power Output”, you're in for a treat with robust performance for driving high-fidelity products without breaking a sweat.
DESCRIPTION
7HZ PRESENTS THE ALL-NEW PORTABLE USB DAC & AMP, THE SEVENHERTZ 71
7HZ is a brand founded in 2012 by a team of engineers and audio enthusiasts who came together to break into the realm of audio products. 7HZ has had all the success in developing the most well-tuned IEMs and is now proudly introducing a USB DAC & Amp, the Sevenhertz 71. It is a simple device with audiophile-grade components in its circuitry. It enables precise high-resolution audio signal decoding effortlessly. The 7HZ 71 has a compact form factor and can be your daily ultra-portable DAC & Amp that can drive your beloved IEMs.
FEATURES HIGH-PERFORMANCE AKM DAC CHIPSET THAT DELIVERS PHENOMENAL AUDIO PERFORMANCE
7HZ 71 comes equipped with AK4377, a 32-Bit high-performance DAC chipset from AKM
Technologies. The AK4377 is a stereo advanced 32-bit high sound quality audio DAC with a built-in
ground-referenced headphone amplifier that adopted VELVET SOUND™ technology. The AK4377 has four types of
32-bit digital filters for better sound quality, achieving low distortion characteristics and a wide dynamic
range. It’s a high-performance, low-power consumption DAC chip that can analyse various digital formats
supporting high-resolution 32-Bit/384kHz PCM signals and DSD128 & DSD64. The AK4377 DAC chip takes the sonic
performance to great heights and delivers phenomenal sonic performance. Delve into pure sonic tranquillity
with the all-new 7HZ 71 USB DAC & Amp.
EASY CONNECTIVITY AND COMPATIBILITY FUSED WITH HIGH-QUALITY CONNECTOR CABLE
7HZ 71 is designed to be compatible with different devices. The devices running Windows, Android, iOS, and macOS are supported. Any device running Android V5.1 or higher can connect to it. The iOS lightning cable has to be bought separately for 71 to be compatible with Apple devices. The most recent 71 portable DAC & Amp from 7HZ features a high-purity connection cable. A four-stand, 36-core OCC Type-c cable assures the transmission of a pure, unadulterated signal. The result is a clean and distortion-free signal transmission. The design of 7HZ 71 does not use batteries. It is a plug-and-play-compatible device with low power consumption. You only need to plug it into your smartphone to enjoy high-resolution audio!
SPECS
| HEADPHONE OUTPUT | 3.5mm (Single-Ended) |
| MICROPHONE PASSTHROUGH | Not Supported |
| DAC CHIPEST | AKM AK4377 |
| THD+N | -108dB / 0.0004% @ 32ohms |
| OUTPUT VOLTAGE | 1Vrms @ 32ohms |
| OUTPUT POWER | 70mW @ 32ohms |
| SINAD | 106dB |
| FREQUENCY RESPONSE | 20Hz 〜 40kHz |
| NOISE FLOOR | <0.9μV |
| PCM DECODING | 32bit/384Khz Maximum |
| DSD FORMAT SUPPORTED | DSD64, DSD128 (DOP) |
| BOX CONTENTS | 1. 7HZ 71 |
OTHER DETAILS
| GENERIC NAME | DAC & Amp |
| IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
| NET QUANTITY | 1 |
| PACKAGE CONTENTS | 7HZ 71 |
7HZ PRESENTS THE ALL-NEW PORTABLE USB DAC & AMP, THE SEVENHERTZ 71
7HZ is a brand founded in 2012 by a team of engineers and audio enthusiasts who came together to break into the realm of audio products. 7HZ has had all the success in developing the most well-tuned IEMs and is now proudly introducing a USB DAC & Amp, the Sevenhertz 71. It is a simple device with audiophile-grade components in its circuitry. It enables precise high-resolution audio signal decoding effortlessly. The 7HZ 71 has a compact form factor and can be your daily ultra-portable DAC & Amp that can drive your beloved IEMs.
FEATURES HIGH-PERFORMANCE AKM DAC CHIPSET THAT DELIVERS PHENOMENAL AUDIO PERFORMANCE
7HZ 71 comes equipped with AK4377, a 32-Bit high-performance DAC chipset from AKM
Technologies. The AK4377 is a stereo advanced 32-bit high sound quality audio DAC with a built-in
ground-referenced headphone amplifier that adopted VELVET SOUND™ technology. The AK4377 has four types of
32-bit digital filters for better sound quality, achieving low distortion characteristics and a wide dynamic
range. It’s a high-performance, low-power consumption DAC chip that can analyse various digital formats
supporting high-resolution 32-Bit/384kHz PCM signals and DSD128 & DSD64. The AK4377 DAC chip takes the sonic
performance to great heights and delivers phenomenal sonic performance. Delve into pure sonic tranquillity
with the all-new 7HZ 71 USB DAC & Amp.
EASY CONNECTIVITY AND COMPATIBILITY FUSED WITH HIGH-QUALITY CONNECTOR CABLE
7HZ 71 is designed to be compatible with different devices. The devices running Windows, Android, iOS, and macOS are supported. Any device running Android V5.1 or higher can connect to it. The iOS lightning cable has to be bought separately for 71 to be compatible with Apple devices. The most recent 71 portable DAC & Amp from 7HZ features a high-purity connection cable. A four-stand, 36-core OCC Type-c cable assures the transmission of a pure, unadulterated signal. The result is a clean and distortion-free signal transmission. The design of 7HZ 71 does not use batteries. It is a plug-and-play-compatible device with low power consumption. You only need to plug it into your smartphone to enjoy high-resolution audio!
| HEADPHONE OUTPUT | 3.5mm (Single-Ended) |
| MICROPHONE PASSTHROUGH | Not Supported |
| DAC CHIPEST | AKM AK4377 |
| THD+N | -108dB / 0.0004% @ 32ohms |
| OUTPUT VOLTAGE | 1Vrms @ 32ohms |
| OUTPUT POWER | 70mW @ 32ohms |
| SINAD | 106dB |
| FREQUENCY RESPONSE | 20Hz 〜 40kHz |
| NOISE FLOOR | <0.9μV |
| PCM DECODING | 32bit/384Khz Maximum |
| DSD FORMAT SUPPORTED | DSD64, DSD128 (DOP) |
| BOX CONTENTS | 1. 7HZ 71 |
OTHER DETAILS
| GENERIC NAME | DAC & Amp |
| IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
| NET QUANTITY | 1 |
| PACKAGE CONTENTS | 7HZ 71 |
Don't sweat it, this
7HZ - 71 comes with a 1 Year warranty
from 7HZ that covers manufacturing defects.
All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about 7HZ's warranty in India.
AKM AK4377
Cirrus Logic CS43131
ESS Sabre ES9219
3.5mm (Single-Ended)
3.5mm Single-Ended
3.5mm Single-Ended
🌱 Beginners
🌱 Beginners
🌱 Beginners
70mW @ 32 Ohms
Upto 200mW+200mW @ 32 Ohms
70mW @ 32 Ohms
USB
Type-C/Lightning
Type-C
32bit/384Khz Maximum
DSD64, DSD128 (DOP)
384kHz/32bit
DSD256
DSD 256 / 11.3MHz
PCM 384kHz
MQA
USB
Type-C/Lightning
Type-C & Lightning
1. 7HZ 71
1. FiiO KA11
2. Manual
3. Warranty Card
1. IFi Audio GO Link
2. 1 X USB-A To USB-C Adapter
3. 1 X Lightning To USB-C Adaptor
4. 1 X Quick Start Card
5. 1 X Instruction Card
Have a question? Get in touch!
Check out the most common questions our customers ask. Still have questions? Talk to our Headphone Gurus.
What DAC chip is incorporated in 7HZ 71?
What is the output power like on 7HZ 71?
What are the sampling rates supported?
Does it support DSD?
Does it come with detachable cables?
Where is the 7HZ brand based?
What is the warranty period on the 7HZ 71 and how do I claim warranty?
This product is rated 4.0 of 5.0 stars.
It has received 27 reviews.
Customer Reviews
This is my first experience with a dongle DAC/Amp. It's a truly fantastic little device. The output is so clean, well balance and powerful that it can easily drive a 50 Ohm headphone with amazing ease. My phone has transformed, literally, into a Hi-Res device with a tiny investment!
Now, the primary question is do we need an expensive DAC/AMP in the first place to listen to good music? The answer is a resounding NO. The pursuit of HiFi/HiRes has its own pitfalls. It's a trap. It's just another way to waste your hard-earned money. Musical tastes and preferences are highly subjective, and the same equipment won't satisfy everyone. So, the cardinal rule is this one: invest in a good headphone or IEM. A good one means the one that is well tuned to your own tastes and preferences and do not necessarily mean a very expensive one. There is no need to buy a very expensive one to sound good to you.
Back to the question of DAC/AMP. Investing in hugely expensive DAC/AMPs is an absolute and criminal waste of money. Do not fall for the reviews on YouTube or Headphone Zone. Test it well before you buy, if possible. An inexpensive dongle DAC/AMP (7Hz-71) is serving me much better, both on Android and Windows. Sadly, I wasted 15000 INR on a FiiO K5 Pro ESS keenly anticipating a huge difference in music quality. Not even an iota of improvement! Then why pay 12000 INR more? Invest in a good Headphone/IEM. Buy a very good DAC/AMP like 7Hz-71 or Apple Dongle (INR 900/-). Install USB Audio Player Pro on your phone. (INR 500/-). Use the equalizer on your music app to adjust your equipment to your musical taste. That's it.
After lot of research, i stumbled upon these. Prior to that i was using VE Avani and Abigail, Connexant CX Pro. So these have an AKM chip, which is used in latoo paw series as well and is well known for providing a neutral and open sound. Hear a lot of positive reviews on youtube as well and it was budget friendly. After using it good for a week, i can say that these are surprisingly good considering the budget, i have used tempotec sonata hd and e44 as well, i would say that there is not much difference in the performance. My audio gears were KZ ZS10PRO, Blon BL03, Tin Hifi T3+ and Audio Technica m50x. I can say that these are the best considering the budger, as a lot of audio community youtubers have also said. So below are the impressions
Bass response : little but controlled, lesser decay, more quality. Satisfied
Mids: the most impacted area, very refined, they feel like they add an extra layer of mids or in other words refinement so mids are extremely clean, though there is a catch, they reduce the resonance or reverb effect so in pure vocal songs you may feel that there is a lack of raspyness in the vocals in pure vocals or acapella kind of songs.
Treble: better control, better treble timber, and enhances the feel. Crisp and clean treble, improve the upper treble air region.
Overall i am more than satisfied for the price they are selling for. Very neutral, improve soundstage and separation overall great.
IMPORTANT: if you want to squeez every bit of performance from your DAC then instead of using basic android music player or streaming apps, i would suggest you to download some good 24 or 16 bit FLAC music. Install hiby music player ( not promoting) and turn USB exclusive mode. What that will do is disable the default android PCM or onboard audio chip, and make the use of the DAC fully. Try this and thank me later. You will be surprised to hear the difference in DAC performance.
Thanks a lot for your detailed and genuine feedback, we're glad that you have such positive thoughts about the product and we'll share your thoughts with the brand as well. It'll also help our fellow customers to make the right choice!
I'm not an audiophile or anything.Since I bought a Note 20 ultra I had to buy a USB cable adaptor.First I bought Samsung type c adaptor and when connected to my Bose Qc 25 there was a lot of noise and I couldn't get the sound quality I get from 3.5mm headphones jack so I did research on USB dacs and my first buy was tiandirenhe with Cs4314L which got it for 1500 rs.It was good compared to Samsung. But the sound was muddy though there was an increase in bass and all but was not crystal clear and missed the same feel from my Bose which I get from headphone jack but was manageable.Sound was low I had to raise the volume very high to get the desired output. When I was outside India I stumbled upon this dac for 35 dollars and bought it.Guys it is really good.Soudnquality is awesome details become very clear everything is in correct proportions whether it is bass treble or instruments.Also I don't need to bring up the volume much .Output is really good even at 35 percent of the volume.I connected it with my Bose and soundmagic e11 which I bought from headphonezone and I'm really liking it.Brings back the good memories of hearing music from 3.5mm.More thanenough for me.Im posting this review here even though I didn't buy from headphonezone is because I just want to help others to make a good decision.I haven't used any other high priced DACs and all.Serves my purpose well.Hence this review.Good for beginners who just want to.listen to their music from new smartphones at the same quality and a bit more than they used to get from old 3.5mm jacks.
Hey there, nothing makes us happier than knowing you loved your purchase, hope you had a comfortable shopping experience and thank you for the great review and ratings!
Sorry to say this iam not satisfied with this sound quality .Before this I have ordered asten xb10 with same amount but unfortunately the device was not working in my phone .So I have exchange new one 7hz 71 .I thought definitely it us a worth to me .Iam using kz zex pro earphones. There is no difference between these two iam not satisfied with this with the sound quality and audio clearance. And this device becoming over heat while using for 5 min of any song this is not a problem. But thr sound clearence and quality is very bad .
I am using this dac& with my salnotes zero which comes from the same manufacturer 7hz. It really enhanced my music listening experience to 4-5x. I'm loving this product especially in the mid bass region. In a lot of songs, I experienced a lot of instrumentals for the first time.
We're really happy that you have such great thoughts about the product and thanks for the amazing review!