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Desktop Tube AmplifierGET 18% GST INPUT
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16%
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16%
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16%
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14%
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3
14%
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6
14%
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15%
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12
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13.50%
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12
14%
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₹ 30,978
18
15%
₹ 24,954
₹ 49,170
24
15%
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3
13%
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6
14%
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₹ 16,491
9
14%
₹ 47,077
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12
15%
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₹ 33,240
18
15%
₹ 24,954
₹ 49,170
24
16%
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American Express
3
14%
₹ 136,456
₹ 9,369
6
14%
₹ 69,415
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9
14%
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₹ 23,694
12
14%
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₹ 30,978
18
15%
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24
15%
₹ 19,395
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Why Cayin is Special
Designed in China
Established & Reputed
Trust us, our reputation speaks for itself 🏆!
I believe that when a brand has decades of proven excellence, you can invest with confidence knowing your purchase is backed by years of audio engineering expertise. These products come from manufacturers with extensive histories of innovation and unwavering commitment to sonic excellence. Think of them like luxury watch brands - their reputation has been earned through decades of consistent quality and innovation.
With their extensive history of innovation and countless satisfied customers worldwide, you can be confident your investment is backed by proven audio engineering expertise and industry leadership 📈.
When you see "🎖️ Established & Reputed" products, expect time-tested excellence from manufacturers who've consistently demonstrated mastery in audio engineering for generations.
Revered by Audiophiles
Audiophiles can be really picky 😤, and if the audiophile community says something sounds good, you can bet it's exceptional! I believe that earning audiophile reverence is like getting a standing ovation from music critics - it doesn't happen unless you've truly achieved something special. This audio gear has earned widespread acclaim from audiophiles worldwide, a community renowned for exacting standards and unwavering commitment to high-fidelity reproduction.
These discerning enthusiasts particularly value its extraordinary precision in sound reproduction and remarkable capability to create thoroughly immersive listening experiences. The audiophile community's endorsement carries significant weight because of their extensive experience with high-end equipment 🏆.
When you see "🙌🏻 Revered by Audiophiles" products, expect audiophile-grade excellence that satisfies even the most demanding listeners and consistently exceeds the highest standards.
Born in 1993
Why we love this DAC/Amp
I Am Worth It
For the most passionate audiophiles who demand nothing less than audio perfection 💎, these exceptional products represent the absolute pinnacle of sound reproduction technology. When I designate something in this category, it means we've identified something truly extraordinary - a piece of equipment that transcends conventional standards of excellence. Think of these as the Rolls-Royce of audio - masterpieces that don't simply meet expectations but establish entirely new benchmarks for what's possible.
These aren't just premium products; they're timeless investments in musical excellence whose value transcends ordinary performance metrics. Each represents a fundamental redefinition of what's achievable in sound reproduction, incorporating innovations and craftsmanship that justify their exclusive status.
When you see "👑 I Am Worth It" products, understand that you're experiencing audio perfection - these masterpieces cater to those who recognise that true excellence knows no compromise.
Serious Audiophiles Only
For those who have ventured deep into high-fidelity audio 🎯, the pursuit of sonic excellence becomes an endless journey of discovery and refinement. I believe that serious audiophiles demand equipment that can satisfy the most exacting standards and deliver performance that pushes boundaries. These products represent the pinnacle of acoustic engineering, incorporating advanced technologies and meticulous craftsmanship that enable them to reproduce music with utmost fidelity.
Each product has undergone rigorous evaluation to ensure it delivers exceptional performance that discerning listeners demand, from precise frequency response to impeccable detail retrieval and sophisticated sound staging. These devices incorporate premium components and engineering excellence that justify their position at the apex of audio performance.
When you encounter "🦈 Serious Audiophiles Only" products, expect uncompromising performance that satisfies the most demanding requirements and elevates critical listening to new heights.
For Audiophiles at Home
I’ve always loved the ritual of coming home, settling into my favourite chair, and firing up a dedicated setup. Gear labelled For Audiophiles at Home is made for those moments — when you can really sit back and appreciate music in its purest form 🛋️. These products tend to be more powerful, larger, and often require wall power — perfect for a stationary rig.
Here’s the trade-off: these setups often involve external DACs, amps, or full-size headphones, which means more space, more power, but also more immersive listening. They shine when used in quiet environments, where detail, depth, and dynamics can truly be appreciated.
When you see '🏠 For Audiophiles at Home' products, expect: exceptional fidelity, stronger output, and the kind of soundstage that makes you never want to leave your listening chair.
Connect With Cable
In my experience, there’s still nothing like the dependability of a wired connection when it comes to audio 🎧. I love describing it as the direct flight of music — no delays, no turbulence. When a product says “Connect with Cable,” it means you’re getting the most reliable signal path, with zero wireless compression and minimal interference.
Here’s what’s actually happening: a physical cable transmits uncompressed analog or digital signals directly from your source to your gear. This results in lower latency, no signal drops, and consistently better sound — especially when paired with a good DAC or amp. It’s ideal for critical listening, gaming, and professional use. The trade-off? You’re tethered — but for a lot of audiophiles, that’s a small price to pay for sonic purity.
When you see '🔗 Connect With Cable' products, expect: pure, uninterrupted sound quality that lets your gear perform at its full potential — perfect for focused, high-fidelity listening.
Built like a Tank
Durability concerns? Rest assured 💪.
I tend to describe these products as audio equipment that's built to survive anything you can throw at them. These headphones incorporate high-grade metal components and reinforced design elements that ensure they can handle demanding conditions while maintaining structural integrity. Think of them as the military-grade vehicles of the audio world - over-engineered for reliability and built to last decades, not just years.
The metal construction provides exceptional strength and longevity while contributing to a premium feel that serious audio enthusiasts appreciate. Whether you're a professional who needs reliable daily-use equipment or someone who values long-term investment in audio gear 🏗️.
When you encounter "🪖 Built like a Tank" products, expect unmatched robustness and durability you can count on for years of intensive use.
Why it Sounds Amazing
Power Output
I like to think of power output in audio gear like engine horsepower, it determines how much muscle your setup really has 💪. Whether you’re trying to drive a pair of power-hungry planar headphones or just want headroom for dynamic peaks, power output is the spec you want to check first.
Technically, it refers to the amount of electrical power (measured in mW or Watts) an amp or DAC/Amp combo can deliver to your headphones. More power means better control, improved dynamics, and the ability to handle demanding gear without distortion. But more isn’t always better, too much power with sensitive IEMs can introduce hiss or harshness.
When you see '🚀 Power Output' products, expect: strong driving capability, better dynamics, and optimal performance with headphones that need serious juice to shine.
Balanced Output
I often say balanced output is like using both hands to carry something heavy — it distributes power evenly and keeps things stable. In audio gear, balanced output helps reduce unwanted noise and interference, especially over longer cables. Think of it as a cleaner, more efficient way to transmit your music, ideal for anyone using high-end DACs, amps, or studio-grade headphones 🎧. You’ll typically find it on gear with XLR or 4.4mm connectors, and it's a must-have if you’re chasing that ultra-clean signal path.
Here’s what’s actually happening: a balanced output uses two separate signals, one inverted, so when interference is picked up along the cable, it gets cancelled out when the signals are recombined. The result? Cleaner audio, better dynamic range, and more power output — especially when paired with balanced headphones. The trade-off? You’ll need gear that supports balanced connections on both ends to really enjoy the benefits.
When you see '⚖️ Balanced Output' products, expect: ultra-low noise, more headroom, and better synergy with high-impedance headphones or sensitive IEMs — ideal for serious listening setups.
DESCRIPTION
CAYIN INTRODUCES THE ALL-NEW HA-300MK2 TUBE AMPLIFIER
The Cayin HA-300MK2 is the successor to the HA-300 and is a two-part tube amplifier for high-quality headphones. It is equipped with a 4.4 mm jack along with 4-pin XLR connections and a 3.5mm singled ended connector. Its external power supply has a complex circuit with four rectifier tubes and ensures a constant, equal voltage for all amplification stages. This power supply concept delivers clean power with minimal interference for the signal amplification of the main amplifier.

EMBEDDED WITH HIGH-QUALITY COMPONENTS FOR CLEAN SOUND
As one of the largest tube amplifier manufacturers in the world, Cayin designs and builds its transformers and ensures that even the minutest details are considered when developing them. The HA-300MK2 features 2 x 6SN7GTB, 2 x Gold Lion 300B, and 4 x 22DE4 tubes to deliver a powerful performance. It also uses a matched pair 300B Direct Heated Triode as output tube and a pair of 6SN7 as driver tube. The tube amplification circuit is operated in Single-ended mode, that’s why it is referred to as a SETA, and then feeds to a pair of output transformers for single-ended headphones, XLR-4 and 4.4mm balanced headphone output and one set of speaker terminals.

UTILISES THE COVETED 300B DIRECT HEATED TRIODE AND PX300B TUBES
A lot of tube enthusiasts consider the Directed Heated Triode (DHT) as the holy grail of vacuum tubes for audio applications. DHT refers to Triode tubes that use the cathode as the filament and will heat the cathode directly during operation. The 300B featured in the HA-300MK2 offers an attractive tonal characteristic with high linearity during amplification. Cayin HA-300MK2 also adopts a matched pair of Gold Lion Genelex PX300B as output tube for HA- 300MK2. This is a low-noise audio triode that offers frequency extension with a natural, sensible and realistic sound signature. This tube is considered to be an excellent upgrade tube by many 300B users and is often referred to as the best of the 300B tubes.

SETA CIRCUIT WITH TUNG-SOL 6SN7GTB AND GENALEX GOLD LION PX300B TUBES
Single-ended Triode Amplifier (SETA) is a vacuum tube-based design that uses a single-triode tube per channel to produce output without splitting the musical signal's plus/minus parts in each channel. Cayin recognised the beauty of SETA and HA-300MK2 employs the same 2-stage single-ended amplification with 6SN7 as the driver tube. It will boost the input signal to the appropriate level so that the 300B output tube will perform its second stage amplification at a very linear condition. For the HA 300MK2 implementation, Cayin uses a matched pair of Tung-Sol 6SN7GTB as a driver tube for almost the same reason as Genalex Gold Lion PX300B. These are super linear, low noise, high performance, highly reliable and natural-sounding driver tubes for SET amplification.

TRANSFORMER COUPLED BALANCED AUDIO ARCHITECTURE
HA-300MK2 is a transformer-coupled SETA. The output from the 300B output tube will drive a pair of proprietary output transformers which support both headphone and speaker outputs. If the 300B triode tubes are the spirit of the HA-300MK2, the output transformers are the flesh and blood of the amplifier. For transformer-coupled design, it is straightforward to support both single-ended and balanced driven in the same circuit. Since balanced headphone amplification is feeding opposing polarity signals to the left and right ear-cup of your headphone. This is achieved through a specific method of winding the transformer so that the positive polarity (aka hot) and negative polarity (aka cold) are driven in opposite directions, delivering a fully balanced output from a single-ended tube amplification circuit.

THOUGHTFUL CONNECTIVITY AND IMPEDANCE-MATCHED HEADPHONE OUTPUTS
The Cayin HA-300MK2 offers 3.5mm single-ended and two balanced headphone outputs: 4.4mm and XLR4, and these are optimised separately. The XLR4 output is a full-fetched output from the output transformer, while the 4.4mm winding is a level-matched, lower noise, lower power output with the same audio performance, making it more suitable for portable headphones. One of the features of Cayin vacuum tube amplifiers is the impedance matched headphone output. HA-300MK2 provides three headphone impedance settings, and the amplifier will optimise its output to handle the headphone loads according to the specified headphone impedance. Each impedance matched output is an independent secondary winding from the output transformers. Matching headphone impedance should produce a natural sound with well-defined bass reproduction.

EXPERTLY DESIGNED WITH TUBE REGULATED OUTBOARD POWER SUPPLY
The power supply for the Cayin HA-300MK2 uses a custom-built toroidal power transformer. This is a special circuit to supply different gain stages, and cayin has used 4 pieces of NOS RCA 22DE4 rectifier tubes to convert the incoming power source to DC for cleanest power with minimum interference for the amplification circuit. These are one of the best versions of the 22DE4 tube and when used as rectifier tubes in HA- 300MK2, they can easily last heavy usage of 5 to 10 years. The four 22DE4 are supposed to work independently from each other. HA-300MK2 also uses a custom make silica gel shock absorber as an anti-shock buffer between critical tube components, chassis mainframe and tube socket, eliminating the microphonic effect of the 300B DHT effectively and providing quiet and realistic playback from sensitive headphones.

SPECS
RATED OUTPUT (PER CHANNEL) | 4pin XLR (BAL) : 2000mW (L); 2400mW (M); 6000mW (H) 4.4mrn (BAL) : 1400mW (L); 2200mW (M); 5400mW (H) 3.5mm (SE) : 1200mW (L); 2200mW (M); 5000mW (H) |
POWER RATING SINGLE-ENDED HEADPHONE | 1100 mW + 1100 mW (L) 2400 mW + 2400 mW (M) 5000 mW + 5000 mW (H) |
FREQUENCY RANGE | 10 Hz-45 kHz±3dB |
THD+N | 1% (1 kHz) |
SENSITIVITY | 200mV-650mV |
S/N RATIO | 100 dB (A-Weighted) |
HEADPHONE IMPEDANCE | L : 8-64Ω M : 65-250Ω H : 251-600Ω |
HEADPHONE CONNECTOR | 4-pin XLR X 1, 4.4mm X 1, 6.35mm X 1 |
RATED OUTPUT | 8W+8W |
FREQUENCY RANGE | 10 Hz-40 kHz±3dB |
THD+N | 1%(1 kHz) |
S/N RATIO | 95 dB (A-Weighted) |
INPUT SENSITIVITY | 400mV |
OUTPUT IMPEDANCE | 4-8Ω |
INPUT IMPEDANCE | 50KΩ |
INPUT CONNECTORS | XLR x 2, RCA x 2 |
TUIBES | Output : Genalex PX300B x 2 Driver : Tung-Sol 6SN7GTB x 2 Rectifier : RCA 22DE4 x4 |
DIMENSIONS | Power Supply : 150 mm X 345 mm X210 mm Amplifier : 286 mm X 368 mm X 210 mm |
WEIGHT | Power Supply : 10Kg Amplifier : 19Kg |
FUSE | ~220V-240V : T1.6AL250V |
OUTPUT TUBE FUSE | T100mAE250V |
POWER CONSUMPTION | 185W |
WORKING CONDITION | Temperature - 0°C~40°C Humidity - 20%~80% |
STORAGE CONDITION | Temperature - -20°C~70°C Humidity - 20%~90% |
BOX CONTENTS | 1. Cayin HA-300MK2 |
OTHER DETAILS
GENERIC NAME | Headphone Amplifier |
COUNTRY OF ORIGIN | China |
IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
NET QUANTITY | 1 |
MANUFACTURER DETAILS | Name: Zhuhai Spark Electronic Equipment Co.,Ltd. Address: No.9 Lianfa Road Shuanglin Zone Liangang Industrial Park Zhuhai City Guangdong Province China, Postcode: 519045 |
PACKAGE CONTENTS | Cayin HA-300MK2 |
FAQs
What is the warranty on the Cayin HA-300MK2?
All Cayin products come with a year warranty. You can simply get in touch with us to claim the warranty.Click here.
How do I connect my headphones with the Cayin HA-300MK2?
You can connect to devices with the 6.3mm unbalanced and 4-pin XLR and 4.4mm balanced headphone outputs.
What is the Frequency Response of the Cayin HA-300MK2?
The Cayin HA-300MK2 offers a frequency range of 10HZ to 45KHz.
Can the Cayin HA-300MK2 drive my 80Ω headphones?
Yes, the Cayin HA-300MK2 can easily drive headphones up to 600Ω.
CAYIN INTRODUCES THE ALL-NEW HA-300MK2 TUBE AMPLIFIER
The Cayin HA-300MK2 is the successor to the HA-300 and is a two-part tube amplifier for high-quality headphones. It is equipped with a 4.4 mm jack along with 4-pin XLR connections and a 3.5mm singled ended connector. Its external power supply has a complex circuit with four rectifier tubes and ensures a constant, equal voltage for all amplification stages. This power supply concept delivers clean power with minimal interference for the signal amplification of the main amplifier.

EMBEDDED WITH HIGH-QUALITY COMPONENTS FOR CLEAN SOUND
As one of the largest tube amplifier manufacturers in the world, Cayin designs and builds its transformers and ensures that even the minutest details are considered when developing them. The HA-300MK2 features 2 x 6SN7GTB, 2 x Gold Lion 300B, and 4 x 22DE4 tubes to deliver a powerful performance. It also uses a matched pair 300B Direct Heated Triode as output tube and a pair of 6SN7 as driver tube. The tube amplification circuit is operated in Single-ended mode, that’s why it is referred to as a SETA, and then feeds to a pair of output transformers for single-ended headphones, XLR-4 and 4.4mm balanced headphone output and one set of speaker terminals.

UTILISES THE COVETED 300B DIRECT HEATED TRIODE AND PX300B TUBES
A lot of tube enthusiasts consider the Directed Heated Triode (DHT) as the holy grail of vacuum tubes for audio applications. DHT refers to Triode tubes that use the cathode as the filament and will heat the cathode directly during operation. The 300B featured in the HA-300MK2 offers an attractive tonal characteristic with high linearity during amplification. Cayin HA-300MK2 also adopts a matched pair of Gold Lion Genelex PX300B as output tube for HA- 300MK2. This is a low-noise audio triode that offers frequency extension with a natural, sensible and realistic sound signature. This tube is considered to be an excellent upgrade tube by many 300B users and is often referred to as the best of the 300B tubes.

SETA CIRCUIT WITH TUNG-SOL 6SN7GTB AND GENALEX GOLD LION PX300B TUBES
Single-ended Triode Amplifier (SETA) is a vacuum tube-based design that uses a single-triode tube per channel to produce output without splitting the musical signal's plus/minus parts in each channel. Cayin recognised the beauty of SETA and HA-300MK2 employs the same 2-stage single-ended amplification with 6SN7 as the driver tube. It will boost the input signal to the appropriate level so that the 300B output tube will perform its second stage amplification at a very linear condition. For the HA 300MK2 implementation, Cayin uses a matched pair of Tung-Sol 6SN7GTB as a driver tube for almost the same reason as Genalex Gold Lion PX300B. These are super linear, low noise, high performance, highly reliable and natural-sounding driver tubes for SET amplification.

TRANSFORMER COUPLED BALANCED AUDIO ARCHITECTURE
HA-300MK2 is a transformer-coupled SETA. The output from the 300B output tube will drive a pair of proprietary output transformers which support both headphone and speaker outputs. If the 300B triode tubes are the spirit of the HA-300MK2, the output transformers are the flesh and blood of the amplifier. For transformer-coupled design, it is straightforward to support both single-ended and balanced driven in the same circuit. Since balanced headphone amplification is feeding opposing polarity signals to the left and right ear-cup of your headphone. This is achieved through a specific method of winding the transformer so that the positive polarity (aka hot) and negative polarity (aka cold) are driven in opposite directions, delivering a fully balanced output from a single-ended tube amplification circuit.

THOUGHTFUL CONNECTIVITY AND IMPEDANCE-MATCHED HEADPHONE OUTPUTS
The Cayin HA-300MK2 offers 3.5mm single-ended and two balanced headphone outputs: 4.4mm and XLR4, and these are optimised separately. The XLR4 output is a full-fetched output from the output transformer, while the 4.4mm winding is a level-matched, lower noise, lower power output with the same audio performance, making it more suitable for portable headphones. One of the features of Cayin vacuum tube amplifiers is the impedance matched headphone output. HA-300MK2 provides three headphone impedance settings, and the amplifier will optimise its output to handle the headphone loads according to the specified headphone impedance. Each impedance matched output is an independent secondary winding from the output transformers. Matching headphone impedance should produce a natural sound with well-defined bass reproduction.

EXPERTLY DESIGNED WITH TUBE REGULATED OUTBOARD POWER SUPPLY
The power supply for the Cayin HA-300MK2 uses a custom-built toroidal power transformer. This is a special circuit to supply different gain stages, and cayin has used 4 pieces of NOS RCA 22DE4 rectifier tubes to convert the incoming power source to DC for cleanest power with minimum interference for the amplification circuit. These are one of the best versions of the 22DE4 tube and when used as rectifier tubes in HA- 300MK2, they can easily last heavy usage of 5 to 10 years. The four 22DE4 are supposed to work independently from each other. HA-300MK2 also uses a custom make silica gel shock absorber as an anti-shock buffer between critical tube components, chassis mainframe and tube socket, eliminating the microphonic effect of the 300B DHT effectively and providing quiet and realistic playback from sensitive headphones.

RATED OUTPUT (PER CHANNEL) | 4pin XLR (BAL) : 2000mW (L); 2400mW (M); 6000mW (H) 4.4mrn (BAL) : 1400mW (L); 2200mW (M); 5400mW (H) 3.5mm (SE) : 1200mW (L); 2200mW (M); 5000mW (H) |
POWER RATING SINGLE-ENDED HEADPHONE | 1100 mW + 1100 mW (L) 2400 mW + 2400 mW (M) 5000 mW + 5000 mW (H) |
FREQUENCY RANGE | 10 Hz-45 kHz±3dB |
THD+N | 1% (1 kHz) |
SENSITIVITY | 200mV-650mV |
S/N RATIO | 100 dB (A-Weighted) |
HEADPHONE IMPEDANCE | L : 8-64Ω M : 65-250Ω H : 251-600Ω |
HEADPHONE CONNECTOR | 4-pin XLR X 1, 4.4mm X 1, 6.35mm X 1 |
RATED OUTPUT | 8W+8W |
FREQUENCY RANGE | 10 Hz-40 kHz±3dB |
THD+N | 1%(1 kHz) |
S/N RATIO | 95 dB (A-Weighted) |
INPUT SENSITIVITY | 400mV |
OUTPUT IMPEDANCE | 4-8Ω |
INPUT IMPEDANCE | 50KΩ |
INPUT CONNECTORS | XLR x 2, RCA x 2 |
TUIBES | Output : Genalex PX300B x 2 Driver : Tung-Sol 6SN7GTB x 2 Rectifier : RCA 22DE4 x4 |
DIMENSIONS | Power Supply : 150 mm X 345 mm X210 mm Amplifier : 286 mm X 368 mm X 210 mm |
WEIGHT | Power Supply : 10Kg Amplifier : 19Kg |
FUSE | ~220V-240V : T1.6AL250V |
OUTPUT TUBE FUSE | T100mAE250V |
POWER CONSUMPTION | 185W |
WORKING CONDITION | Temperature - 0°C~40°C Humidity - 20%~80% |
STORAGE CONDITION | Temperature - -20°C~70°C Humidity - 20%~90% |
BOX CONTENTS | 1. Cayin HA-300MK2 |
OTHER DETAILS
GENERIC NAME | Headphone Amplifier |
COUNTRY OF ORIGIN | China |
IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
NET QUANTITY | 1 |
MANUFACTURER DETAILS | Name: Zhuhai Spark Electronic Equipment Co.,Ltd. Address: No.9 Lianfa Road Shuanglin Zone Liangang Industrial Park Zhuhai City Guangdong Province China, Postcode: 519045 |
PACKAGE CONTENTS | Cayin HA-300MK2 |
What is the warranty on the Cayin HA-300MK2?
All Cayin products come with a year warranty. You can simply get in touch with us to claim the warranty.Click here.
How do I connect my headphones with the Cayin HA-300MK2?
You can connect to devices with the 6.3mm unbalanced and 4-pin XLR and 4.4mm balanced headphone outputs.
What is the Frequency Response of the Cayin HA-300MK2?
The Cayin HA-300MK2 offers a frequency range of 10HZ to 45KHz.
Can the Cayin HA-300MK2 drive my 80Ω headphones?
Yes, the Cayin HA-300MK2 can easily drive headphones up to 600Ω.
Don't sweat it, this
Cayin - HA-300MK2 comes with a 1 Year warranty
from Cayin that covers manufacturing defects.
All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about Cayin's warranty in India.
