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Hi. I'm running a vintage setup comprising a NAD C521i (with low jitter clock conversion), Pioneer SX-990 transistor receiver (re-capped etc.) KEF Uni-Q Q90 speakers and; a Wharfedale Power Cube 8 subwoofer.
I must confess from the off that I am not competent with electronics beyond a bit of soldering and therefore, didn't do any of the work myself.
I'm trying to get to grips with low frequency because I feel that there is something missing especially from the orchestral stuff I play. There's no problem with the more upbeat stuff which usually comes with a strong baseline anyway.
Both the KEF speakers and the sub are rated at 40 Hz at the bottom end +/-3 dB, but when I fed a YouTube test signal through the system via my tablet there was a distinct drop-off at around 65Hz on both and by the time the signal dropped to 55Hz there was virtually nothing coming out of the drivers at all. This happened with other test too! This raises two questions:
- Is this normal or is there a weak link that's cutting the signal at this point?
- Would a better sub give me the extra down to, say, 25Hz?
Sorry this first post is so long but any suggestions would be gratefully received
Thanks
Elgee
Follow Ups:
Be careful when listening but not measuring. Due to the way our ears work bass sounds rolled off at normal listening levels. We only hear flat at levels well over 90 dB(too loud for safe long term listening). So you have to crank the level control way up to listen for bass frequencies. This is often called the Fletcher/Munson affect.
What is the room size and how are they placed in the room, i.e. how far away from room boundaries? My first guess is that you have them located where there's a room null around 55 Hz.
And yes, a better sub will give you more extension. That little Wharfedale PC-8 is only specified to 40 Hz with 6 dB of boundary reinforcement, e.g. in a corner. It's really a woofer meant to be used with tiny little satellite speakers. I think your KEFs would be better off without it.
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