Sakahara, as per your original question and not sure why your considering the Speakon connection.
If you are using this subwoofer with a Home Theater receiver (Amplifier/ Processor) with 5.1 or as they refer it as a "multi-channel system where a .1/LFE signal is present" The receiver will have a (subwoofer) RCA output that is usually crossed over at 80Hz and should be an acceptable match with your current speakers.
Be advised, many powered subwoofers offer high level (speaker/amplifier) connection as an option for those who haven't a second set of preamp or subwoofer output/s. REL is one of the very few if not only sub that uses high level connectivity as a preferred method.
If your receiver has any room correction it might help with the gain, equalization, and or time delivery of the subs output. The high level connection may not be affected by the receivers room correction.
In any event good luck and have fun eith the deep state.
If you are using this subwoofer with a Home Theater receiver (Amplifier/ Processor) with 5.1 or as they refer it as a "multi-channel system where a .1/LFE signal is present" The receiver will have a (subwoofer) RCA output that is usually crossed over at 80Hz and should be an acceptable match with your current speakers.
Be advised, many powered subwoofers offer high level (speaker/amplifier) connection as an option for those who haven't a second set of preamp or subwoofer output/s. REL is one of the very few if not only sub that uses high level connectivity as a preferred method.
If your receiver has any room correction it might help with the gain, equalization, and or time delivery of the subs output. The high level connection may not be affected by the receivers room correction.
In any event good luck and have fun eith the deep state.
[["REL R-Series Manual UK 02/06.1/LFE input connection using a phono to phono interconnect (Note: This connection is for the .1/LFE channel and should only be used if the REL is being used in a multi-channel system where a .1/LFE signal is present, e.g. with DVDs or SACDs)
.1/LFE INPUT
Phono Interconnect
To Sub/LFE output of Amplifier/Processor
Connect as shown above. Plug one end of the interconnect into the Sub/LFE output on the amplifier/processor and the other end into .1/LFE INPUT on the Sub-Bass System.
The output level is adjusted using the control marked .1/LFE LEVEL"]]