The QED SS40 4-way speaker switch allows you to switch between up to four pairs of speakers for your ultimate set up
This SS40 4-way speaker switch gives you superior results when connecting up to four pairs of speakers by using safe amplifier loading.
- Series/parallel Switching Ensures Safe Amplifier Impedance Loading.
- Minimum Load Impedance - 4 Ω (Using Four Pairs Of 8 Ω Speakers)
- Power Rating: 150 Watts Rms
- Silver Plated Switch Contacts
- Large Cable Entry Protected Terminals (3.95mm Dia)
- Dimensions (HxWxD): 55 Mm X 157 Mm X 155 Mm
WHAT ARE THE DIFFERENCES BETWEEN THE SPEAKER SWITCHES IN TERMS OF IMPEDANCE?
All the speaker switches are configured so that if you use 8 Ω speakers the minimum impedance seen by the amplifier will be 4 Ω
WHAT ARE THE BENEFITS OF SERIES VS PARALLEL?
The switches which have more than two sets of speakers use a combination of series and parallel switching to achieve the minimum impedance of 4 Ω no matter what combination of speakers are switched on. For the two way switches there is a choice between exclusively series or parallel versions. If you have 8 Ω speakers (and a 4 Ω min amp) you should always use the parallel switch. If you have 4 Ω speakers and a 4 Ω min amp you should always use the series switch.
ALL QED SWITCHES LOAD ON 4 Ω USING 8 Ω SPEAKERS. WHAT HAPPENS IF MY SPEAKERS ARE 6 Ω?
1. Check your amp – if it can cope with a 3 Ω load or less (and some can) then you are alright. The rule is you must always use speakers with double the impedance of the amp minimum. 2. If you only have two pairs of speakers then use the two way SERIES switch.
HOW DO THE SWITCHES DEAL WITH POWER, E.G. IF I HAVE AN AMPLIFIER WITH MORE THAN 150 WATTS?
These accessories use mains switches which are rated at 6A which means the max power they can handle is 288W given an 8 Ω load
IF MY AMP IS RATED 6-16 Ω SHOULD I REALLY BE RUNNING A 4 Ω LOAD?
NO, NEVER – you should use 12 Ω minimum speakers. You can get 16 Ω speakers though – but it may just be easier to change the amp.
CAN I USE THEM IN REVERSE E.G. AS AN AMPLIFIER SWITCHER (WE KNOW THE ANSWER IS NO, BUT WHY?)
NO – because the speaker switches are designed to have two sets or more of speakers attached to one amp, if used in reverse there is always the possibility of connecting two amps at once to one pair of speakers resulting in damage to one or both amps.
WHAT IS THE TECHNICAL DEFINITION OF 'TRANSMATCH'?
For the 5 way speaker switch we don’t use parallel or series switching but use transformer coupling instead. Again you have to use 8 Ω speakers minimum if your amp is a 4 Ω minimum amp. The impedance is then matched by the transformer (hence the name) so that a net 1.6 Ω load (all 5 sets of 8 Ω speakers switched on)is converted back to a 4 Ω load. One pair of speakers (A) is not connected to the transformer but is directly connected to the amp, these will be the main speakers. The four B pairs are connected via the transformer.
Purchasing an audio product on the internet is not the easiest of tasks when you can't experience the most important factor - how good does it sound?
We only sell quality products that we're happy to have in our own homes.
But we don't expect you to simply trust that the products on our site are good quality, so we've implemented a few things to help give you confidence.
Each of these individual guarantees and warranties have been wrapped up into the K&B Audio Happy Sound Guarantee!
THE HAPPY SOUND GUARANTEE
1. THE BEST Returns & Exchange Policy
Quite simply, if you are not happy with the quality of the speaker(s) that you buy from us then you can either;
1) return all or part of your order and exchange or upgrade for a different system/speaker* or...
2) return them for a full refund
The only question we will ask is "Can we help you choose a different system/speaker?".
2. Extended Returns Period
We know that our products are often project based, we know you might be buying it now for installation a few weeks down the line.
So we've extended our returns period from the industry standard 14 days to an industry beating 60 days!
You can return the system for any reason during this period.** Please keep the packaging :)
3. Extended Product Warranties
Electronics are usually only covered by a one year warranty.
But we don't think that's good enough considering you have to cut holes in your ceiling!
We've managed to negotiate extended warranties with our best-selling brands that you won't get anywhere else.
Lithe Audio - 2 Year Standard, 1 Year Extended = 3 YEARS TOTAL
Systemline - 2 YEARS TOTAL
KB Sound - 2 YEARS TOTAL
Monitor Audio Passive Speakers - LIFETIME
Q Install Speakers - 5 YEAR WARRANTY
Please check individual product pages for an accurate warranty length for that particular brand/product. If in doubt contact us on 02393 190955
4. FREE Tech Support
When you choose to buy from us at K&B Audio you'll also get access to free technical support before, during and after your project.
We can help you with project design, specification of projects, how to wire and install all of the systems we offer.
Once you have your system installed we can also help with how to use it, how to get the most out of it and anything else you need assistance with.
* upgrade costs must be paid in accordance with the prices shown on our website.
** unless the goods are damaged on delivery or faulty the return postage costs are to be covered by you.
Please ensure you read our detailed returns policy for full details. Click Here
Buying from us gets you a whole host of extra features and guarantees that can't be matched by most other retailers including big-name marketplaces.
- Expert Advice Call 02393 190955, Email or Live Chat To Discuss Your Project
- Fast & Free Delivery On Orders Over £89 - Read More
- 60 Day Returns Happy Sound Guarantee - Read More
- Approved Retailers For Top Brands
- Extended Warranties On Lithe Audio & Systemline Products
- We Are Real People - Meet The Team
We know you can't wait to start enjoying your new speaker system, so we only use the quickest and most reliable couriers. We keep plenty of stock so 95% of orders are delivered the next day!
|FREE Delivery On Orders Over £89 (2-3 Working Days)||£0.00|
|Standard Delivery (2-3 Working Days)||£4.99|
|Express Delivery (1-2 Working Days)*||£6.99|
|Standard Delivery (3-4 Working Days)||£14.99|
* Available on selected products.
We only use the best, and that's decided by our customers.
The majority of our orders go via Interlink, UK Mail, DPD. Some lower value items such as spare parts and remote controls go Royal Mail.
Free delivery is normally via next day courier as well. (We don't guarantee you'll receive free delivery items the next day, but 99% of the time you will!)
Once you place an order with us you will receive a notification e-mail outlining your order and details. We then get busy picking and carefully packing your item. Once we've got it all ready to go you'll receive another update to tell you it's been dispatched with a tracking number so you can keep an eye on it!
99% of our customers receive their items sooner than they expected. We pride ourselves on super-fast deliveries and do everything we can to deliver on that promise.
Any stock issues, or other delivery issues will always result in a quick phone call and e-mail to keep you updated. However we have carefully picked our products so we rarely have stock issues.
Working days are Monday to Friday. All orders on Friday will be shipped via next working day courier which means your item will arrive on the Monday.
Orders placed on weekends will be processed and dispatched on the Monday unless otherwise stated. Orders placed on bank holidays will be processed and dispatched on the next working day.
Some additional costs apply to Ireland, Europe & Scottish Highlands.
ORDER CUT OFF TIMES
Most orders received before 2pm are processed and dispatched the same day provided the items are in stock with exception of items that have a custom stock status displaying a lead time.
After 2pm we will try our best to dispatch the same day provided our couriers have not been, however we cannot guarantee same day dispatch after 2pm.
If a product is delayed or out of stock we will contact you by telephone and/or e-mail in the earliest instance to discuss your order. We do our best to ensure that our stock levels are accurate, but on the odd occasion if the item you have purchased is out of stock we will contact you ASAP to discuss alternatives or to advise of the lead time.
IMPORTANT - PLEASE ORDER IN GOOD TIME
Please be aware that the above are guidelines, we try our best to stick to these guidelines but some delays can be caused by couriers which we have no control over.
If you are using an electrician to install your system then please order in good time we cannot be held responsible for any costs or issues incurred in delaying your electricians due to any dispatch or delivery issues. We recommend that you give yourself a good few days in advance at a minimum.
If you have not received your item after 4-5 working days (UK) please contact us immediately so that we can look into it for you.
This is very rare, we use the best couriers and can keep track of your item at every stage.
Please read our terms & conditions for full details and please feel free to contact us if you have any other questions or queries.
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