Yonex B-4000 (Blue) Basic Series Badminton Pre-Strung Racket

Product Information

saw the introduction of the Beolab 4000 Mk2 . Almost unheralded, the main change was the use of ICE amplifiers to replace the AB type. At first glance it would appear that the amplifiers from the Beolab 4 were being used. These offered a power output of 35W each with 2 being used. This was remarkably similar to the real output of the older amplifiers and not surprisingly the maximum sound levels achievable were not changed. Indeed it was unlikely that any customers would have noticed the change if not told. The Smart 5 5000 comes supplied with a more suitable holder too. It sits on a work surface rather than needing to be attached to a wall. It is our opinion is smarter and less unsightly. You just need to pop your phone in it, which takes a couple of seconds compared to the tens of seconds with the genius brush configuration. You phone then sits in portrait or landscape orientation and shows the on-screen timer. If you activate it often, don’t worry all that much, over time you will learn and avoid doing lasting damage to your teeth. Just imagine if you didn’t have it…

Smaller and less unsightly, it is designed to sit on a worktop rather than adhere to a wall or mirror. You just need to pop your phone in it, which takes a couple of seconds compared to the tens of seconds with the Genius brush configuration. You phone then sits in portrait or landscape orientation and shows the on-screen timer. Brushing for the full 2 minutes is very important, but just as important if not more so is the right technique. Make sure you learn how to clean your teeth properly. What this feature does is that it alerts you when the battery needs recharging by flashing red, green when charging and no flash when the battery is fully charged. I suspect over time you will learn this, but wouldn’t some icons or LED’s be helpful to show the mode. The more premium Smart 6 and Genius range offer them. A smaller, but relevant difference relating to the cleaning modes is that the motor in the Pro 2 2000 is a bit more powerful and actually offers more movements than the Pro 600.I am confident that the Genius X motor is more powerful. I think the Pro 5000 you might have has something in the region of 8,800 oscillations and either 20,000 or 40,000 pulsations. Oral B 3000 and 4000 come with 2 brush heads and no storage unit but the Smart 5000 model comes with 3 heads plus a storing unit with space for storing up to four brush heads per time.

Each of the 3 cleaning modes work slightly differently, with differing levels of oscillations, rotations and pulsations to achieve different cleaning effects on the teeth.

Adaptive Bass Linearisation

Right at the top of the brush handle is a metal prong, this is what the brush head connects to and feeds the power from the brush motor. The Oral B 4000 does not come with a travel case or a brush head storage unit, while the Oral B 6000 does¹². The storage unit can hold up to 4 brush heads. In the unlikely event, something goes wrong, there is as standard a 24 month warranty is provided with the 4000. This covers the battery too. Register the brush online and you get an extra 12 months at no extra cost, so 36 months or 3 years in total. You will see that the more feature-rich, and typically more expensive models are shown on the right, compared to the more cost effective models on the left.

If you take a look at the very bottom of the brush handle, there is a recess, into which the pin on the charging stand connects to. A charging stand is provided. Since no two loudspeaker units have exactly the same physical characteristics, we calibrate them individually to make certain that the sound of each and every BeoLab 4000 loudspeaker leaving the factory is identical. AppearanceLuminaire luminous flux and light color fixed. Luminaire luminous flux 3900 lm, connected load 33,00 W, Power Faktor λ > 0,95, luminous efficiency of luminaire 118 lm/W. Light colour neutral white, correlated colour temperature (CCT) 4000 K, general colour rendering index (CRI) R a > 80. Colour locus tolerance (initial MacAdam) ≤ 3 SDCM. Mean rated service life L80(t q 25 °C) = 50,000 h. The light source is replaceable according to the ecodesign requirements (VO (EU) 2019/2020). The function is adaptive. This means that the loudspeaker adapts to the signal it receives. Loudspeaker drivers are therefore fully exploited, without suffering mechanical or electronic abuse, and the built in amplifiers are not subjected to signals would otherwise create an overload situation.