Hello Everyone,
I'll start out by saying I'm not an audiophile. I run a set of 80's pioneer fronts, and a cheap Samsung receiver. Here is a pic of my setup:
So I used to run a Polk audio PSW125 but earlier this week the amp died. I emailed support and they want almost as much as a new sub to replace the amp. I decided it was time to get a new sub. I headed down to my local Visions as they are having a grand opening sale. I was planning to get the PSW505 as it was 50% off, but it sounded horrible. The sales guy suggested the KEF Q400B as it is his #1 selling sub. I was sceptical but it wiped the floor with the other subs. It was able to hit notes the other speakers couldn't even pick up, not to mention how small it is. So I went back the next day and bought the Q400. It was almost 50% off so I think I got a good deal. That being said I'm left a bit disappointed.
1. Poor separation. When the bass really kicks in, the bass and kick drum loose all of their separation. I don't remember having this issue with my Polk. (10" vs 12"???)
2. Sloppy response. I fired up a dub step track today to test the response of the driver. During the faster wub wub parts it couldn't keep up and sounded like a single note. The sub was visually keeping up, but the sound did not match. (room positioning???)
3. Low volume. I followed the steps in the manual during my set-up. Receiver crossover at 80 hz, sub xover at 140, level at the 7th tick, and sub volume on the receiver to taste. It's the same config as my old sub, with the exception of sub volume. I need to max the receiver sub volume to get it up to an audible level. I have left the sub level at 7 as suggested. Going to mess with this a bit more later.
4. Deep notes are there, but hardly audible. (10"vs 12"???)
5. The KEF rattles the lights in the kitchen two rooms away, but isn't all that loud in my living room. (room positioning???) The Polk used to live in the back left corner of the room (the young lady got some new furniture and of course the sub had to go). I was never happy with this position, but it was the only place for it. As you can see in the picture I have the Q400 to the right of my front speaker. Suggestions on where it should live?
6. One positive thing though is that with the exact same amp/xover settings, voices no longer creep into the sub. It seems to be filtering better than the Polk.
Like I said I didn't notice any of these issues with my old sub. It had way too much volume on tap. I usually had to keep it at 50% or less with receiver sub volume at 0 and it would overpower the mains. Now here are the differences as I see it.
a. 10" vs 12"
b. 200 watts vs 150 watts
c. sealed enclosure vs bottom ported
d. not broken in yet? Controversial subject I know, but could be a factor.
Now coming from a cheap entry level sub to something priced at nearly 1K CAD I was expecting to be blown away. I tried looking for reviews but there isn't much on this little guy. Is this even a decent sub? or do people generally avoid it for some of the reasons above?
This could all also be due to my home theatre noobery. If anyone has advise on how I should be positioning it, or tuning my system I would really appreciate it.
Thanks guys,
P.S. I tried hooking up my Polk today for a direct comparison but it won't power on any more.
I'll start out by saying I'm not an audiophile. I run a set of 80's pioneer fronts, and a cheap Samsung receiver. Here is a pic of my setup:
So I used to run a Polk audio PSW125 but earlier this week the amp died. I emailed support and they want almost as much as a new sub to replace the amp. I decided it was time to get a new sub. I headed down to my local Visions as they are having a grand opening sale. I was planning to get the PSW505 as it was 50% off, but it sounded horrible. The sales guy suggested the KEF Q400B as it is his #1 selling sub. I was sceptical but it wiped the floor with the other subs. It was able to hit notes the other speakers couldn't even pick up, not to mention how small it is. So I went back the next day and bought the Q400. It was almost 50% off so I think I got a good deal. That being said I'm left a bit disappointed.
1. Poor separation. When the bass really kicks in, the bass and kick drum loose all of their separation. I don't remember having this issue with my Polk. (10" vs 12"???)
2. Sloppy response. I fired up a dub step track today to test the response of the driver. During the faster wub wub parts it couldn't keep up and sounded like a single note. The sub was visually keeping up, but the sound did not match. (room positioning???)
3. Low volume. I followed the steps in the manual during my set-up. Receiver crossover at 80 hz, sub xover at 140, level at the 7th tick, and sub volume on the receiver to taste. It's the same config as my old sub, with the exception of sub volume. I need to max the receiver sub volume to get it up to an audible level. I have left the sub level at 7 as suggested. Going to mess with this a bit more later.
4. Deep notes are there, but hardly audible. (10"vs 12"???)
5. The KEF rattles the lights in the kitchen two rooms away, but isn't all that loud in my living room. (room positioning???) The Polk used to live in the back left corner of the room (the young lady got some new furniture and of course the sub had to go). I was never happy with this position, but it was the only place for it. As you can see in the picture I have the Q400 to the right of my front speaker. Suggestions on where it should live?
6. One positive thing though is that with the exact same amp/xover settings, voices no longer creep into the sub. It seems to be filtering better than the Polk.
Like I said I didn't notice any of these issues with my old sub. It had way too much volume on tap. I usually had to keep it at 50% or less with receiver sub volume at 0 and it would overpower the mains. Now here are the differences as I see it.
a. 10" vs 12"
b. 200 watts vs 150 watts
c. sealed enclosure vs bottom ported
d. not broken in yet? Controversial subject I know, but could be a factor.
Now coming from a cheap entry level sub to something priced at nearly 1K CAD I was expecting to be blown away. I tried looking for reviews but there isn't much on this little guy. Is this even a decent sub? or do people generally avoid it for some of the reasons above?
This could all also be due to my home theatre noobery. If anyone has advise on how I should be positioning it, or tuning my system I would really appreciate it.
Thanks guys,
P.S. I tried hooking up my Polk today for a direct comparison but it won't power on any more.