Affordable Analogue Warmth

After a rather long hiatus, look who’s back? ZiiGaat returns, and for their first release of the year, the premium Chinese brand has teamed up with Mexico’s own audio reviewer Vivir Digital to introduce their first-ever budget IEM: the Rumba. Powered by a single graphene-plated dynamic driver co-tuned with Vivir Digital and backed by ZiiGaat’s proven mastery of high-quality IEMs, the Rumba promises an immersive yet technical sound, all at a very friendly price of just $39, making it the brand’s most affordable IEM to date. So, how will this budget contender fare in the packed arena of affordable audio? Let’s dive in and find out.

First, a huge shout-out to Rosie and Linsoul for providing the sample pair of the all-new ZiiGaat x Vivir Digital Rumba for us to share our honest take. We are not affiliated with the brand, nor have we received any form of monetary compensation for this review. As always, this is solely our honest assessment of the product.

P/s : Rumba in Spanish is a rhythmic dance with Spanish and African elements, originating in Cuba.

Functions & Specifications

Before we start the review, here are the specifications of the new ZiiGaat x Vivir Digital Rumba taken from their site;

Driver: 10mm Dual-Cavity Dynamic Driver

Diaphragm Material: Graphene

Impedance: 32Ω

Rated Power: 5mW

Maximum Power: 10mW

Sensitivity: 109dB (1kHz / mW)

Frequency Response: 10Hz–22kHz

Total Harmonic Distortion: <0.5% (1kHz)

Channel Imbalance: <1.5dB

Connector: 0.78mm 2-Pin Detachable Cable

The ZiiGaat x Vivir Digital Rumba can be purchased directly from their website and exclusively on Linsoul’s website as well as many other platforms worldwide

ZiiGaat x Vivir Digital: RUMBA

Packaging & Accessories

The packaging is simple yet solid with a small box that has ZiiGaat’s premium feel but in a smaller footprint. Nothing much is expected here for their wallet friendly price and what matters most to me is the product performance itself. Inside we will find 12 pairs of silicone eartips (wide bore&narrow bore) in 3 sizes, a 3.5mm cable, a user manual and of course, the Rumba IEM. Also included is a card with a QR link to Vivir Audio’s own playlist of some decent Spanish songs made for the Rumba in Tidal and Spotify.

Design

The Rumba features a 3D printed medical grade resin shell with an ergonomic CIEM fit that has an optimized hollow shell that optimises the dynamic drivers for adequate venting and the shell is slightly thick but has it is small in size with a black inner shell and a blood red faceplates with ZiiGaat and Vivir Digital insignia on them. The finishing is excellent as the casting is clean, uniform and glossily polished.

The Rumba is driven by a single 10mm ultra light graphene plated dynamic driver that gives fast transients with improved clarity and lower distortion, producing a clean, highly resolving overall sound. Tuned alongside Vivir Digital, they are made to maintain musical engagement across long listening sessions with balancing energy and smoothness for fatigue-free enjoyment across different genres and volume levels.

There is 1 tuning pinhole vent near the nozzle for pressure relief and another near the 2 pin connector for the dynamic drivers breathing room. No flex is present on the Rumba and they are a well vented IEM with no pressure build up.

The Rumba has the standard flush 0.78mm 2 pin connection that is slightly tight.

The front nozzle has a decent length with a maximum diameter of 5.5mm and they have a lip at the end to grip eartips better. The nozzles are fitted with metal mesh to prevent dust and moisture from entering.

The cable here is rather basic but they are a little thick with a black, four-core twisted oxygen-free copper design, available in 3.5mm termination with or without microphone. While it may be a bit basic, the cable actually feels robust and it is soft and pliable, suitable for everyday carry usage.

Gears Used for Comparisons

Songs list

Tone and Presentation

The sound presentation is a V shaped sound with a mild bass boost, lifted highs and a spacious mids. These are an unique analogue sounding set that has great low end energy that focuses on being highly musical rather than clinical. The tone here is quite balanced with a slightly dark tone with a warm, smooth sound presentation with decent overall details, well worth the asking price. The Rumba is a rather unique tuning of being inoffensive and possessing a highly musical sound that excels in immersion and music enjoyment that may not be suited for purists but suited for an everyday, casual usage.

Soundstage

The soundstage here is decent with adequate width and height that possesses a good headroom size that is free of any boxiness. They do have a mild diffused sound that is similar to a near field monitor that possesses a rather big room feel that gives an immersive and intimate sound that sounds open, having a good amount of air. Soundstage accuracy is great with a 3D, holographic spatial positioning that is well suited even for gaming and movies.

Separation and Timbre

Separation here is good and they have a good stereo sound with no major crosstalk issues and they have the ability here to improve with a balanced setup. The sound cohesion here is great with no major issues like having gaps or hollowness, instead the Rumba presents a full and rich sound that is typical of a well tuned dynamic driver setup. Timbre here is rich, organic and breathy, having a good amount of energy especially in the lower mids to the bass region. The Rumba does have some colouration present that gives a luscious, sweeter listening experience without hampering the overall accuracy.

Drivability

Rated at 32 ohms with a 109db sensitivity, they are easily driven by any source as they don’t need much power to sound great with adequate amount of loudness. Their low sensitivity does not tend to pick up noise making them a good pair of IEM for outdoor or casual usage. Scalability here is average but they do benefit from good matching especially with a neutral bright source but matching with some bassy source will actually incur some bass bloat. The Rumba isn’t a revealing set but they are able to show some flaws in the recording and it doesn’t necessarily need a good mastered track and higher bitrates files will actually give a cleaner sound but only marginally. These aren’t really a pair of IEM tuned for monitoring and critical listening, instead it has an energetic, warm analogue suiting mainstream genres like EDM and modern pop.

The Bass (Low)

The bass is dominant with a boosted, punchy yet clean signature that sounds full and they are authoritative without major overpowering issues. The bass here is immersive and they are well textured with a slightly boomy slam that extends well into the sub-bass region. The mid-bass has a lift that gives a meaty bass slam and they are resolving bass, capable of giving a clean and clear bass. Bass transparency is decent but is rather average as the bass isn’t in their natural amount. Details here are good with a nimble bass that plays well with fast tracks in a controlled manner without any bloat or bleed present. The sub-bass is strong, dives deep and has a good rumble that blends well with the overall bass, giving an immersive sound presentation that is highly enjoyable suiting bassheads for their authoritative bass but not so much for purists.

The Mids

Midrange here has a mostly neutral flat sound that is slightly recessed partly by the strong low end but that manages to stay present, blending well from the lower mids and with a smooth transition towards the upper mids. The mids here have a good amount of warmth and they are intimate with a spacious feel with good spatial accuracy. Clarity here is mediocre for their analogue type of presentation but they are clean and have a resolving sound that is vivid with a dash of coloration. Details here perform well in macro but they are lacking in the micro details region. The body here is slightly thick and the timbre here is accurate with an organic, breathy timbre that gives a soulful and lush sound presentation. The transition to the upper mids are smooth that may lack bite for certain users but brilliance here is adequate. Vocals here are more suited to male vocals as they are deep, sweet and luscious but for female vocals, they tend to lack brilliance marginally. Instruments are best paired with lower notes like drums, bass and some woodwind but on certain strings, they tend to be a little too smooth or polite.

The Highs

The high range of the Rumba is a neutral flat presentation that produces a rather smooth and inoffensive but still able to have their presence with a mild peak at the 8khz region. Clarity is good with great details with sparkly highs that have a mild crisp decay to them. It has a laid-back type of performance that is suitable for long listening sessions as they don’t incur any fatigue with minimal harshness and sibilance, therefore suiting genres such as metal all the way to EDM. For treble heads, I do find that they lack bite but for treble sensitive users that yearn for a smooth sound without being too polite, these might be the one. Timbre is natural and accurate with a breathy sound that is typical to a dynamic driver’s high range. The treble here is balanced with a lean towards a more laid-back style of intensity, giving a smooth overall sound that is fatigue free but with a slight expanse of the overall clarity.

Comparisons

VS Kefine Klean SV(53USD)

One of the latest entry offerings from Kefine with a single DLC dynamic driver encased in an aluminum alloy shell with tuning nozzles. The Klean SV has a neutral bright tone that excels it. Their tuning focuses more on technicalities and may lack musicalities. They do cost slightly more than the Rumba but the inclusion of tuning nozzles does offset that.

• Overall details and clarity on the Klean SV is better with the Rumba having a warmer sound
  
• Klean SV does sounds more balanced and transparent overall
  
• Soundstage on the Rumba is slightly better
  
• Bass on the Rumba has the edge in amount, weight, texture and depth but Klean SV has more accuracy
  
• Sub-bass amount is slightly bigger in Rumba with better depth
  
• Midrange on Klean SV is more forward and has better details while Rumba is more spacious with a sweeter sound
  
• High range amount on the Klean SV is more accurate while the Rumba has a smoother, fatigue free signature
  
• High range extension on Klean SV is better but a little strong for treble sensitive users
  

Vs Kiwi Ears Chorus (39USD)

The latest entry level IEM with a first collaboration with B_Media. Equipped with a single DLC dynamic driver and cost the same with a similar packaging. The build on Rumba is mostly 3D printed resin while the Chorus has aluminum alloy faceplates with a bigger vent. Build on Rumba does feel slightly more premium.

• Bass on the Rumba is bigger, deeper and more immersive while Chorus has better accuracy
  
• Sub-bass is also bigger on Rumba but in a slight margin
  
• Midrange on the Chorus is more forward with slightly better details while Rumba has more space with a warmer sound
  
• High range on the Chorus is slightly livelier with better sparkle and crispness while the Rumba has a smoother overall high response
  
• Soundstage on both are similar in width and height but Rumba does has a bigger headroom
  
• Treble on Chorus is slightly more intense that gives more overall clarity while Rumba has a more laid-back type of sound
  

Synergy

Good synergy: Neutral bright and balanced sources

Examples: 7HZ Artemis39, Qudelix T71, Hidizs S8 Pro, Questyle M15, VE Devastator series, FiiO KA15, Surfans X10

Not so good synergy: Bassy, bright sources

Examples: EPZ TP35 pro, FiiO Q15, Hiby FC6, Cayin RU7

Power requirements: Easily driven with average scalability

Who Is It For?

Suitable genres: EDM, jazz, hip-hop, classicals, pop, rock, metal

Suitable usage: Gaming, movies, casual listeners, bassheads, drummers, bassists

Not suitable genres: Acoustics, ACG

Not so suitable usage: Monitoring, critical listening, purists

Final words

At just $39, the ZiiGaat x Vivir Digital Rumba proves that budget pricing doesn’t have to mean boring sound. It delivers a warm, engaging, bass-forward V shaped signature that prioritizes musical enjoyment over clinical precision, making it a fantastic daily driver for casual listeners, gamers, and bassheads alike. While it won’t satisfy treble purists or critical monitoring needs due to its smooth, laid-back highs and slightly recessed midrange as well as stiff competitions around, the Rumba stands out at what it sets out to do, to offer an immersive, fatigue free, and downright fun listening experience. For anyone seeking an affordable IEM with soul and slam all in a friendly price, the Rumba is an easy recommendation.

4½ over 5 stars ⭐⭐⭐⭐½

Pros

• Decent technicalities
• Premium resin build, ergonomic fit and nice finishing
• Warm, punchy, energetic sound
• Unique analogue tuning
• Good separation, imaging with a wide dynamic range
• Rich, dense and organic timbre
• High musicalities and immersive
• Decent clarity and details
• Nicely boosted, textured, clean and deep bass
• Smooth highs that is inoffensive
• Laid-back treble that is fatigue free
• Easy to drive
• Good for bassheads
• Fair and low pricing

Cons

• Not for critical or Monitoring
• Not a conventional, neutral sound
• Details isn’t the best
• Mild recessed mids
• Treble a little polite