Chi-Fi have come a long way since few years back and now comes a new player into the market brand called CVJ. The website for CVJ brand - http://cvj-hifi.com/ The model in spotlight today is CVJ CSN 12 Units Hybrid ( 5 BA + 1 DD ) . Its their flagship model according to their website and its price at slightly above USD 50.
General Info :
1.Brand : CVJ
2. Model : CSN 5BA + 1DD
3. Earphone type : In Ear Monitor
4. Impedance : 22Ω
5. Plug Type : 3.5mm
6. Cable Length : 1.25m
7. Color Available : Midnight Black or Dark Blue
8. Detachble Cable : 2 pin Interface
9. Driver unit : 5BA+1DD hybrid driver unit (Super-sized 10mm Diaphragm + Customised BA )
Accessories
1. 3x Pairs of Silicone Ear Tips
2. 1X Single Crystal Cooper Cable
3. Velvet Storage Bag
4. Velcro Cable Tie
5. Instruction Manual (must read LOL)
BUILD & DESIGN
CVJ CSN comes in a glossy brownish hard paper box which is kinda cool looking with the specifications listed back of the box but the silver fonts is really small which is hard to read imho with the reflections. Accessories as listed above and pretty standard fare for In Ear Monitor.
The shape of the IEM is really comfortable with no sharp or rough edges and according to their specifications made of aluminium and magnesium synthetic metal. Two colour are available which are Blue and Black - I bought the Blue variant and it has a purple tint to the blue. Long session with this CVJ CSN is a blessing with no comfort issue or its just my ear shape that is suited to it!
The cable supplied with the CVJ CSN is single crystal cooper cable with ear loop with 2 pin connector. The cable is soft and nice but its a Miss Curl cause its easily tangle reason being of the ear loop and soft texture of the whole cable.
Initial Testing
First listen with phone Xiaomi MI MIx 2 was impressive with good clarity and separation. Bass was a bit thin sounding right out of the box with stock ear tip but overall it’s the kind of sound signature that I prefer. Depth perception of CSN is freaking impressive with more than average wide soundstage. Overall its a very good sounding IEM whereby each musical instrument is clearly defined and positional wise is spot on! Tested with Soul Bossa Nova - Quincy Jones and Master of Puppets - Mettallica - I kid you not! Try it out! Also vocal aspect is a delight where they are in line with the instrumentation and does not come across overwhelmed and its a star on its own. Its quite a close impression of Havi B3 Pro 1 but only lose out on wider soundstage but the clarity, details retrieval, depth is amazing and easier to drive which Havi is a hard nut to drive for those who know what I’m talking about.
The next few days further testing and running them in with no critical listening - just enjoying them with my phone.
Sound Signature with Shanling M0 DAP with high gain
Its not that I am hard core proponent of burning in but in this case highly recommended - the bass is more impactful and the initial splashy treble has mellow out a bit and according to the gibberish instruction manual with term like Shu Jin and martial arts burn in (LOL) - recommended to burn-in. Details retrieval is excellent with a tinge of forward midrange well executed.
Dedicated DAP player makes a difference compared to my smart phone which is not a good audio indicator but nowadays you can’t go on dailty life without it ! Right ?
Tested with Shanling M0 after few days of burning - the improvement was much more coherent sounding overall presentation where the Bass is much fuller with better impact and definition but not overbearing. I really like how the bass turn out ! Also its more balanced sounding between the bass midrange and treble and as I have mentioned above - vocal is a delight. It really feels like watching a live band with the positional spot on !
Further tested with a Fiio E12 strap on to the mighty Shanling M0 player really bring out another dimension to what this CVJ CSN can do - power bring even better control overall musicality.
Suggestions
- Burn In recommended
- Change to a better cable - tested with a 8 core pure silver cable = must do !
- Ear tip swap - different sound can be achieved - more bass or treble oriented
- Sound better with high gain with DAP or even better with amplifier
Conclusion
I’m amazed with CVJ CSN because of its versatility in term of sound with cable change, ear tip change and how much improvement with an amplifier really makes this IEM shines brightly.
5 Stars rating based on price paid and the performance level and technical ability. Impressed is the WORD!
Bought from Aliexpress Store

General Info :
1.Brand : CVJ
2. Model : CSN 5BA + 1DD
3. Earphone type : In Ear Monitor
4. Impedance : 22Ω
5. Plug Type : 3.5mm
6. Cable Length : 1.25m
7. Color Available : Midnight Black or Dark Blue
8. Detachble Cable : 2 pin Interface
9. Driver unit : 5BA+1DD hybrid driver unit (Super-sized 10mm Diaphragm + Customised BA )
Accessories
1. 3x Pairs of Silicone Ear Tips
2. 1X Single Crystal Cooper Cable
3. Velvet Storage Bag
4. Velcro Cable Tie
5. Instruction Manual (must read LOL)



BUILD & DESIGN
CVJ CSN comes in a glossy brownish hard paper box which is kinda cool looking with the specifications listed back of the box but the silver fonts is really small which is hard to read imho with the reflections. Accessories as listed above and pretty standard fare for In Ear Monitor.
The shape of the IEM is really comfortable with no sharp or rough edges and according to their specifications made of aluminium and magnesium synthetic metal. Two colour are available which are Blue and Black - I bought the Blue variant and it has a purple tint to the blue. Long session with this CVJ CSN is a blessing with no comfort issue or its just my ear shape that is suited to it!
The cable supplied with the CVJ CSN is single crystal cooper cable with ear loop with 2 pin connector. The cable is soft and nice but its a Miss Curl cause its easily tangle reason being of the ear loop and soft texture of the whole cable.
Initial Testing
First listen with phone Xiaomi MI MIx 2 was impressive with good clarity and separation. Bass was a bit thin sounding right out of the box with stock ear tip but overall it’s the kind of sound signature that I prefer. Depth perception of CSN is freaking impressive with more than average wide soundstage. Overall its a very good sounding IEM whereby each musical instrument is clearly defined and positional wise is spot on! Tested with Soul Bossa Nova - Quincy Jones and Master of Puppets - Mettallica - I kid you not! Try it out! Also vocal aspect is a delight where they are in line with the instrumentation and does not come across overwhelmed and its a star on its own. Its quite a close impression of Havi B3 Pro 1 but only lose out on wider soundstage but the clarity, details retrieval, depth is amazing and easier to drive which Havi is a hard nut to drive for those who know what I’m talking about.
The next few days further testing and running them in with no critical listening - just enjoying them with my phone.
Sound Signature with Shanling M0 DAP with high gain
Its not that I am hard core proponent of burning in but in this case highly recommended - the bass is more impactful and the initial splashy treble has mellow out a bit and according to the gibberish instruction manual with term like Shu Jin and martial arts burn in (LOL) - recommended to burn-in. Details retrieval is excellent with a tinge of forward midrange well executed.
Dedicated DAP player makes a difference compared to my smart phone which is not a good audio indicator but nowadays you can’t go on dailty life without it ! Right ?
Tested with Shanling M0 after few days of burning - the improvement was much more coherent sounding overall presentation where the Bass is much fuller with better impact and definition but not overbearing. I really like how the bass turn out ! Also its more balanced sounding between the bass midrange and treble and as I have mentioned above - vocal is a delight. It really feels like watching a live band with the positional spot on !
Further tested with a Fiio E12 strap on to the mighty Shanling M0 player really bring out another dimension to what this CVJ CSN can do - power bring even better control overall musicality.
Suggestions
- Burn In recommended
- Change to a better cable - tested with a 8 core pure silver cable = must do !
- Ear tip swap - different sound can be achieved - more bass or treble oriented
- Sound better with high gain with DAP or even better with amplifier
Conclusion
I’m amazed with CVJ CSN because of its versatility in term of sound with cable change, ear tip change and how much improvement with an amplifier really makes this IEM shines brightly.
5 Stars rating based on price paid and the performance level and technical ability. Impressed is the WORD!
Bought from Aliexpress Store
