The AV Forum review can be found here:- http://www.avforums.com/review/Paradigm-Signature-Sub-1-Review.html 

It is worth a read as rarely does a subwoofer get an overall rating for music and movies as high as this.  You should hear the Signature Sub 2!!!

The Home Cinema Choice review by Adam Rayner states “Absurdly monstous and profound in output”, “The biggest baddest subwoofer from the top range of a very high end speaker maker”.

The Signature Sub 2 “has limitless power, huge speed , awesome control and is beautifully engineered”.  4500w RMS, six 10″ drivers and will pumb the subsonics level of 7Hz!!

Kent Home Cinema  loves this subwoofer!

WELL Now there’s even more reason to purchase either of these stylish KEF systems; KEF are offering customers the chance to win their money back with each purchase of the KHT7005 or KHT8005 systems made between 17^th May and 11^th June!

To be in with a chance to win your money back, you will simply need to submit your score predictions for England’s first three group matches of the tournament.  You will need to submit the attached score sheet and return it to us to pass onto KEF by Friday 11^th June.

Those who predict the correct score for all three of England’s group matches will be lucky enough to win their money back for the purchases of the KHT7005 or KHT8005 systems!

Please contact us for more details on 01892 535007.

Kef HTB2SE-W Subwoofer

Kef has launched the Kef HTB2SE-W wireless subwoofer. KEF’s advanced signal transmission and processing technologies eliminate unwanted mutes, dropouts or loss of bonding as well as interference from your other electronics. Placed horizontally or vertically, in pride of place or hidden away, all you hear is what the artist intended.

Up to 31st December Kef is providing an additional £100.00 discount if you trade in your old subwoofer

The system we have on demo is the Monolith Classic and comprises of the following speakers ; two Vibe Monolith Three Towers, two Vibe Monolith One surround speakers, a Vibe Monolith Two centre and a Vibe Omicron subwoofer.  You can however mix and match to make the Slick system or the Vogue system.  See for yourself here or come and hear for yourself here.

Home: 

• 50 dBA – Refrigerator
• 50-80 dBA – Electric shaver
• 50-80 dBA – Electric shaver
• 60-95 dBA – Hair dryer
• 75-85 dBA – Flushed toilet
• 80 dBA – Ringing phone, Vacuum cleaner
• 110 dBA – Crying baby
• 135 dBA – Noisy squeeze toys

Work:

• 40 dBA – Quiet office/ library
• 65-95 dBA – Power lawnmower
• 90-115 dBA – Subway
• 105 dBA – Snow blower
• 120 dBA – Ambulance
• 140 dBA – Airplane take-off
• 180 dBA – Rocket launching from pad

Recreation:

• 70 dBA – Freeway traffic
• 90 dBA – Large restaurant
• 95-110 dBA – Motorcycle
• 100 dBA Personal stereo
• 110 dBA – Car horn
• 115 dBA – Night Club
• 117 dBA – Football game (stadium)
• 140 dBA – Gunshot
• 150 dBA – Firecracker
• 157 dBA – Balloon pop
• 170 dBA – Shotgun

Other:

• 0 dBA – Softest level the human can hear
• 10 dBA – Normal breathing
• 30 dBA – Whisper
• 60 dBA – Normal conversation
• 80 dBA – Shouting
• 105 – 120 dBA – Thunder
• 110 dBA– Shout in the ear, Climax to film Armageddon!!

And just for the record!

• 116-119 dBA – From 2 x SVS PB13 Ultra Subwoofers at Dolby Reference Level

But how much is too much?   

NIOSH states that the maximum amount of time a person can be exposed to 85 dBA without experiencing hearing damage is 8 hours; this is the average level of noise a person hears every day. However, continuous exposure to 85 dBA beyond the 8-hour limit will cause hearing loss. If a person is exposed to level above 85 dBA, the risk of hearing loss increases in a shorter amount of time. The maximum time allowed for 110 dBA (e.g. a crying baby) is 1 minute 29 seconds. If a person is exposed to a noise that has a measurement of 140 dBA (e.g. airplane departure), immediate inner ear damage would result.

Hope this proved insightful and useful.

A very simplistic method that has been suggested for many years is to place the subwoofer on the seat where most listening will take place.  The next step is to walk around the room to find the position where the bass sounds most suitable i.e. at its best.  The position chosen is where the subwoofer ‘should’ be placed.  However, in most instances this is usually the least practical place to put it e.g. middle of the room or in front of the AV cabinet!

So a compromise has to be made to integrate the subwoofer into the system with the other speakers in your surround set up as well as the room aesthetics.  This may leave you with a less than satisfactory performance than was expected.  A very good report on placement of one or more subwoofers has been written by Ingvar Ohman which will hopefully explain integration for you – http://www.sonicdesign.se/subplace.html 

However don’t despair if it’s starting to look a bit too technical!  Electronic solutions are available in the form of sound equalizers that concentrate on the room correction element of your subwoofer in its listening environment.   Here are a couple of examples:  

Velodyne SMS-1

SVS AS-EQ1

These clever box of tricks are placed between the Amplifier/Receiver and the subwoofer and after a bit of effort on your behalf using the microphone provided to set it all up, you can let it process out all of the anomalies in your room, to create a coherent soundstage, with the other speakers in your system.  Once set up you just let the processor do its thing, again and again constantly ensuring your system has great bass and integration.

Here are a couple of reviews of the SVS AS-EQ1 that should help understand the role an equalizers can play, to further improve a surround sound system you already have or intend purchasing.

http://www.avforums.com/forums/subwoofers/993424-svs-eq1-subwoofer-eq-end-user-review.html

http://www.avforums.com/reviews/SVS-AS-EQ1-SubEQ-Review.html