Speaker Cable Length

M

Miniperl

Audiophyte
Hello,
I’m thinking of replacing my subwoofer with a model that has speaker level inputs due to connectivity challenges with my integrated amplifier, streamer & dac. My integrated amp does have 2 sets of binding posts. A & B. My current subwoofer is positioned between my main speakers next to my audio rack. My main speakers are connected to my amp with 5 foot lengths of cable. I have a somewhat small room. The mains a 6 feet apart. If I connect the new sub to my amp with 2-3 foot length of speaker cable, will that cause any problems, like phase for instance? I would appreciate any courteous, constructive feedback. Thank you.
 
everettT

everettT

Audioholic Spartan
Hello,
I’m thinking of replacing my subwoofer with a model that has speaker level inputs due to connectivity challenges with my integrated amplifier, streamer & dac. My integrated amp does have 2 sets of binding posts. A & B. My current subwoofer is positioned between my main speakers next to my audio rack. My main speakers are connected to my amp with 5 foot lengths of cable. I have a somewhat small room. The mains a 6 feet apart. If I connect the new sub to my amp with 2-3 foot length of speaker cable, will that cause any problems, like phase for instance? I would appreciate any courteous, constructive feedback. Thank you.
What sub, what integrated amp? It's always better to use coax no matter what some manufacturer says, ie REL. Using the A+B is the wrong solution even if you wanted to use speaker cable, which isn't shielded. You would want to run the A out to the sub, and then the sub out to the mains. If your integrated has a sub or main out use it.
 
TLS Guy

TLS Guy

Audioholic Jedi
Hello,
I’m thinking of replacing my subwoofer with a model that has speaker level inputs due to connectivity challenges with my integrated amplifier, streamer & dac. My integrated amp does have 2 sets of binding posts. A & B. My current subwoofer is positioned between my main speakers next to my audio rack. My main speakers are connected to my amp with 5 foot lengths of cable. I have a somewhat small room. The mains a 6 feet apart. If I connect the new sub to my amp with 2-3 foot length of speaker cable, will that cause any problems, like phase for instance? I would appreciate any courteous, constructive feedback. Thank you.
A & B outputs are parallel outputs and not discrete. So it all hangs on what the impedance of those speaker level inputs is. I suspect they are high impedance, but I don't know. Speaker level inputs are in general a poor choice. I suspect you have an old two channel receiver with no sub outs or bass management. Those units were not built for the current era.
 
M

Miniperl

Audiophyte
I have a new Denon PMA1700NE that has no sub or pre-outs. I would be purchasing the RSL Speedwoofer 10S MKii.
 
everettT

everettT

Audioholic Spartan
I have a new Denon PMA1700NE that has no sub or pre-outs. I would be purchasing the RSL Speedwoofer 10S MKii.
Unfortunately the speaker level is your only option. As I mentioned, you need to feed the subwoofer with the A output of the Marantz and then feed your speakers from the RSL. If you haven't purchased the Marantz yet you may want to reconsider your options.
 
M

Miniperl

Audiophyte
The new RSL I’m considering has speaker level inputs. No speaker level outputs. This whole problem stems from the fact the the WiiM Ultra that I’m using as a streamer has a sub output. But I have the WiiM set to fixed output so I can control the volume from the Denon. By having the WiiM set to fixed output, the line level & the sub output is also set to fixed, which has those outputs at 100 and maxed out. This makes my existing RSL Speedwoofer 10E sub very loud & boomy. It’s now difficult to integrate the sub with my main speakers. Unless I turn the gain down on the sub to 8:30 to 9:00. Even then I find myself constantly adjusting it through the WiiM app. I thought by switching to a subwoofer with speaker level inputs, it would integrate better with my main speakers. But as usual, it’s always easier said than done. Thank you for your input.
 
everettT

everettT

Audioholic Spartan
The new RSL I’m considering has speaker level inputs. No speaker level outputs. This whole problem stems from the fact the the WiiM Ultra that I’m using as a streamer has a sub output. But I have the WiiM set to fixed output so I can control the volume from the Denon. By having the WiiM set to fixed output, the line level & the sub output is also set to fixed, which has those outputs at 100 and maxed out. This makes my existing RSL Speedwoofer 10E sub very loud & boomy. It’s now difficult to integrate the sub with my main speakers. Unless I turn the gain down on the sub to 8:30 to 9:00. Even then I find myself constantly adjusting it through the WiiM app. I thought by switching to a subwoofer with speaker level inputs, it would integrate better with my main speakers. But as usual, it’s always easier said than done. Thank you for your input.
Sorry I kept calling it a Marantz, brain is still on turkey. How do you have the WiiM connected? I understand your issue but as @TLS Guy mentioned there could be an impedance issue. You can try it but it might present your speakers with a half load which isn't good. I'd start with low volume since you don't have a way to high pass your speakers.
 
M

Miniperl

Audiophyte
The WiiM is connected to an SMSL RAW DAC1 via usb then into the Denon via rca out from the SMSL. The fact is, I love the sound I’m getting from this setup through my Monitor Audio Silver 300 7g speakers. The Denon is a great amp IMO. I just wish it had a set of pre-outs. The owners manual said I can connect a subwoofer with speaker level inputs to either speaker A or B on the amplifier. Maybe I’ll give it a shot. Thanks again for your time and insight.
 
Last edited:
H

highfigh

Seriously, I have no life.
The WiiM is connected to an SMSL RAW DAC1 via usb then into the Denon via rca out from the SMSL. The fact is, I love the sound I’m getting from this setup through my Monitor Audio Silver 300 7g speakers. The Denon is a great amp IMO. I just wish it had a set of pre-outs. The owners manual said I can connect a subwoofer with speaker level inputs to either speaker A or B on the amplifier. Maybe I’ll give it a shot. Thanks again for your time and insight.
The speaker level input is high impedance, so it won't have a large effect on the Denon.

If you love the sound from your Monitor speakers, why do you need a subwoofer which, as you're finding, isn't just a lug and play- you'll also have to deal with correct placement and other considerations. IMO, a pair of really good or great speakers should be enough to provide very good low freqwuency response without needing to learn to setup and control the DSP and if you look at the specs for your speakers AND the sub, you won't be adding much, but that's not as easy to know because the Monitor specs show the in-room response with -6dB. They need to provide graphs.

The good part- this sub has 0-180 degree phase control, so placement will be easier than if it had a 0/180 degree switch.

Look at the rear of the Denon for impedance info- it's below the binding posts.
 
M

Miniperl

Audiophyte
The WiiM is connected to an SMSL RAW DAC1 via usb then into the Denon via rca out from the SMSL. The fact is, I love the sound I’m getting from this setup through my Monitor Audio Silver 300 7g speakers. The Denon is a great amp IMO. I just wish it had a set of pre-outs. The owners manual said I can connect a subwoofer with speaker level inputs to either speaker A or B on the amplifier. Maybe I’ll give it a shot. Thanks again for your time and insight.
The speaker level input is high impedance, so it won't have a large effect on the Denon.

If you love the sound from your Monitor speakers, why do you need a subwoofer which, as you're finding, isn't just a lug and play- you'll also have to deal with correct placement and other considerations. IMO, a pair of really good or great speakers should be enough to provide very good low freqwuency response without needing to learn to setup and control the DSP and if you look at the specs for your speakers AND the sub, you won't be adding much, but that's not as easy to know because the Monitor specs show the in-room response with -6dB. They need to provide graphs.

The good part- this sub has 0-180 degree phase control, so placement will be easier than if it had a 0/180 degree switch.

Look at the rear of the Denon for impedance info- it's below the binding posts.
The speaker level input is high impedance, so it won't have a large effect on the Denon.

If you love the sound from your Monitor speakers, why do you need a subwoofer which, as you're finding, isn't just a lug and play- you'll also have to deal with correct placement and other considerations. IMO, a pair of really good or great speakers should be enough to provide very good low freqwuency response without needing to learn to setup and control the DSP and if you look at the specs for your speakers AND the sub, you won't be adding much, but that's not as easy to know because the Monitor specs show the in-room response with -6dB. They need to provide graphs.

The good part- this sub has 0-180 degree phase control, so placement will be easier than if it had a 0/180 degree switch.

Look at the rear of the Denon for impedance info- it's below the binding posts.
The speaker level input is high impedance, so it won't have a large effect on the Denon.

If you love the sound from your Monitor speakers, why do you need a subwoofer which, as you're finding, isn't just a lug and play- you'll also have to deal with correct placement and other considerations. IMO, a pair of really good or great speakers should be enough to provide very good low freqwuency response without needing to learn to setup and control the DSP and if you look at the specs for your speakers AND the sub, you won't be adding much, but that's not as easy to know because the Monitor specs show the in-room response with -6dB. They need to provide graphs.

The good part- this sub has 0-180 degree phase control, so placement will be easier than if it had a 0/180 degree switch.

Look at the rear of the Denon for impedance info- it's below the binding posts.
The speaker level input is high impedance, so it won't have a large effect on the Denon.

If you love the sound from your Monitor speakers, why do you need a subwoofer which, as you're finding, isn't just a lug and play- you'll also have to deal with correct placement and other considerations. IMO, a pair of really good or great speakers should be enough to provide very good low freqwuency response without needing to learn to setup and control the DSP and if you look at the specs for your speakers AND the sub, you won't be adding much, but that's not as easy to know because the Monitor specs show the in-room response with -6dB. They need to provide graphs.

The good part- this sub has 0-180 degree phase control, so placement will be easier than if it had a 0/180 degree switch.

Look at the rear of the Denon for impedance info- it's below the binding posts.
This is what’s printed below the binding posts on the Denon, “Impedance: A or B 4-16 ohms. A & B 8-16 ohms. Bi-wiring 4-16 ohms”. The RSL Speedwoofer 10S MKii is rated at 4 ohms nominal. So I suppose connecting that sub via speaker level inputs would be a no go? I do love the sound I’m getting from this setup, but there are some recordings that would benefit from a sub.
 
H

highfigh

Seriously, I have no life.
This is what’s printed below the binding posts on the Denon, “Impedance: A or B 4-16 ohms. A & B 8-16 ohms. Bi-wiring 4-16 ohms”. The RSL Speedwoofer 10S MKii is rated at 4 ohms nominal. So I suppose connecting that sub via speaker level inputs would be a no go? I do love the sound I’m getting from this setup, but there are some recordings that would benefit from a sub.
.

I know what's on the Denon.

The 4 Ohm rating of the RSL is for the driver, not the input- I don't believe I have seen a speaker level input that was 4 Ohms.

I sent an e-mail to RSL about this and they sent the basic "It won't damage the equipment, etc" reply.
 
Last edited:
lovinthehd

lovinthehd

Audioholic Jedi
.

I know what's on the Denon.

The 4 Ohm rating of the RSL is for the driver, not the input- I don't believe I have seen a speaker level input that was 4 Ohms.

I sent an e-mail to RSL about this and they sent the basic "It won't damage the equipment, etc" reply.
I was wondering what RSL would say. I expected as much, doubtful anything in this gear would be an issue with the proposed use.
 
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