YiHi SX Mini M Class temperature regulated box mod
This week I take a look at the long awaited YiHi SX Mini M Class temperature regulated box mod, using the new YiHi SX350J regulated chipset with temperature control.
So , now the SX350J chipset is finished and YiHi bring us the new YiHi SX Mini M Class. There are some physical changes to the device, and some big changes to the electronics.
Boxed, and protected whilst in transport to you, in the same SX Mini packaging as before. Included in the box, with the device, is the user guide, warranty card (with authenticity serial number) and usb charging lead.
You can see here that the external physical look of the YiHi SX Mini M Class is almost identical to their (now named) Class S model. There are a couple of aesthetic changes which we will discuss later
Same ‘hand shape’ in the body, same logos and marking on it as well. The 510 has the improved (slotless) pin and adjustment range. 23mm diameter 510 plate, now with a cross vent (the previous was just a line vent) for atomisers that take air from the 510.
The base has similar markings, revised for the M Class and SX350J but otherwise the same.
Same battery insertion/changing method, the slotted (for a coin) cap just screws out with ease.
Same button layout with a nice large fire button, large display, up/down buttons and usb charging socket.
The usb lead can also be used to update the device firmware.
The coating to the device is now a smoother, higher finish quality. Previously the finish looked powder coated, now it looks almost enamelled.
And, those sharp edges of the SX Mini are now gone on the YiHi SX Mini M Class. A light bevel smooths the edges out, making it far more comfortable in the hand.
The display is large, and holds a mass of information. Output, usage, output volts, coil resistance, battery charge and temperature setting.
You also still have the same memories and output ‘performance’ (soft, standard, powerful and a new powerful plus) as before.
There are the original menus and new menus for temperature regulation.
We can adjust the output in joules (or watts when not in temperature control mode), the desired maximum temperature (°C or °F) , the unit of temperature (C/F) and whether the device is in Power (normal) or Joule (temperature) modes.
The usual host of safety features are included. Lock and unlock with a triple press. Check atomiser if it is open circuit (missing coil/atomiser). Protection from reversed battery polarity, short circuit, low resistance, low battery and overheating.
Here we can see the improvement the the base edges, the M Class (above in the picture) has smoothed edges.
Here we can see that improved finish to the c-frame (the M Class on the right) which is now a smoother coating.
Above is the SX350J chipset that YiHi has created for the YiHi SX Mini M Class.
Below are the specifications for that chipset, and hence the YiHi SX Mini M Class specifications as well.
Below we have a YiHi made YouTube video of the temperature control functions.
And here we have the very important setting of a new coil resistance, this has to be done each time a new device (only for temperature control) is installed.
So, opinions time…
Joules are a measurement of work done, or of work to be done. A joule is one watt for one second. So, 50joules could be 5 watts for 10 seconds or 10 watts for 5 seconds or 50 watts for 1 second etc etc..
In the context of the YiHi SX Mini M Class, it appears that the J output (of the Joule mode/temperature control mode) is same as how we already think of watts on other devices.
Simply put, the more the joules on the YiHi SX Mini M Class the more the device attempts to output into your coil.
So, that dealt with. Is the device any good ?
Well, in the previous SX Mini, I had a couple of physical ‘complaints’. The 510 adjustment depth, which they revised and fixed, and the sharp corners on the base were uncomfortable.
The YiHi SX Mini M Class has a light bevel to the base edges, making it far far more comfortable in the hand. This is a big improvement.
They have also massively improved the quality and finish of the coatings to the device, specifically the c-frame part of the body.
The electronics inside the device are as reliable and flexible, as before, but with a lot of new features for the temperature control mode.
These temperature control features are very complete and work very well. We have the ability to use the device in ‘normal’ or ‘temperature controlled’ modes (YiHI call these ‘Power’ and ‘Joule’ mode respectively). We can have temperature measured in Celsius or Fahrenheit. We can adjust temperature setting over a 100-300°C, or 200-580°F, range.
The Ohms range of 0.08-3.0 is also good, and gives us the scope to build nickel coils with ease (and Kanthal ones when in Power mode).
The temperature regulation works, and it works well and reliably. I had no issues with dry hits or burnt cotton at all.
The vape when temperature regulated on the YiHi SX Mini M Class is good, it feels less ‘acrid’ than ‘normal’ vaping. I found that a dry throat/ dry mouth was far far less obvious when vaping with temperature regulated to 180°C, and still as much vapour produced as I was previously used to. Flavour wasn’t improved but, as the wick/coil remains clean for a lot lot longer, the quality of the flavour lasted longer. Coils and wicks also lasted longer, needed changing less frequently.
I found that I needed to set my output (whilst in Joule mode) a little higher than normal. This was only about 10% higher, but it seemed to warm the coil up better, more like I was used to.
I might, for example, find 20 watts (not temperature regulated) to work well on my Magma. With temperature regulation I found 22-24 joules was the setting I liked, else it took too long to ‘warm up’. The device still has the Soft/Standard/Powerful/Powerful-Plus settings, using Powerful setting (and 20J) also had the desired effect.
I was delighted that you can now use the up/down buttons (as well as the gravity sensor) in the menus. This is a welcome change and makes changing setting when using a dripper a lot easier.
I also liked the way the main screen tells you if you are changing memories or adjusting them (with ADJ , M1-M5 displayed clearly in the corner).
Overall the YiHi SX Mini M Class is excellent, I love using it and it will be my ‘device of choice’ for quite a while.
The YiHi SX Mini M Class will not only be in the original silver/grey (frame/body) and silver/black, but also new colours of silver/rose and black/silver.
The price for the new YiHi SX Mini M Class is $200/180€/£160.
More information is available from the YiHi website here
The site has also has an authenticity checker (via the warranty serial number) and the software/firmwares to upgrade the device with.
and their Facebook page here