
Before you specify
Frequently Asked Questions
What exactly does the +2 add over the +1 SS4?
A second throat and a second bin. The paper side is identical - same 230 mm opening, same 3.8 mm strip, same 17-19 sheet rating, same 38.5-litre bagless bin. The +2 adds a 125 mm slot for CDs, DVDs, Blu-ray discs and plastic cards, feeding a separate 1.5-litre plastics bin so the fragments never enter your paper waste stream. If you never destroy media, the +1 SS4 does the same job for less money.
Can I put paper into the CD slot to speed things up?
No. The media slot has a different cutting geometry intended for rigid plastic and it feeds the small 1.5-litre bin, which would fill almost immediately with paper. Paper goes in the 230 mm throat. Using the wrong slot will not damage the machine instantly but it will pack the plastics bin and can block the media path.
Is P-2 acceptable for shredding old customer invoices?
It depends what is on them. An invoice showing only a company name and an order number is fine at P-2. An invoice with an individual's home address, a partial card number or a bank detail is not - a 3.8 mm strip keeps those fields legible along the length of the strip. If any of your invoices carry personal or payment data, the +3 CC4 at P-4 is the minimum sensible level.
How many discs can the plastics bin hold?
Roughly 25-40 CDs or DVDs depending on how the fragments settle, since the bin is 1.5 litres. Credit cards and badges take much less space. There is no window on the plastics bin, so make checking it part of the routine - unlike the paper bin, it will not stop the machine when it is full.
Will US Legal paper fit, and how many sheets on US bond?
US Letter, A4 and US Legal all feed through the 9.2 in throat - the opening limits width, not length. Kobra rates the head at 17-19 sheets on 70 g/m2 paper and 15-17 on 80 g/m2. Standard US 20 lb bond is around 75 g/m2, so plan on the middle of that range. Folded sheets, card stock and glossy paper all count for more than their page count.
How loud is it and does it idle?
Kobra rates the +2 SS4 at 55 dB(A) under load, comparable to ordinary conversation and quieter than most office printers mid-job. Between jobs it makes no noise at all: the Energy Smart system drops the machine into a power-saving standby after roughly eight seconds of inactivity, with an illuminated indicator showing the state, and the photo-eyes wake it when paper enters the throat.
Does it stop automatically when the paper bin is full?
Yes. The safety stop system halts the cutting knives when the bin is removed and when the paper bin registers full, and the machine reverses automatically if a stack jams. Combined with the transparent front window that means you can leave it running between passes without watching it. The Energy Smart standby also drops it into low power after about eight seconds idle.