Questions & Answers

Q: QuestionHow many watts is the subwoofer?

• A:Answer The subwoofer is 130 Watts.

Q: QuestionDoes this speaker system come with a subwoofer?

• A:Answer Yes, this is a 2.1 speaker system that includes a 7 inch subwoofer.

Q: QuestionAre these speakers THX certified?

• A:Answer Yes, these speakers are THX certified.

Q: QuestionWhat kind of inputs does this Logitech speaker system have?

• A:Answer This speaker system has optical, RCA, and 3.5mm inputs.

Q: QuestionWhere are the controls for the speakers located?

• A:Answer The controls are located on the right satellite speaker.

Q: QuestionWhat is the frequency response for this speaker system?

• A:Answer The frequency response is 35Hz - 20kHz.

Q: QuestionAre these digital and will they work with an optical cable?

Asked 7 years ago by Anonymous.

• A:Answer This unit accepts an optical cable, which is how I have it connected to my PC. Optical cables digitally represent, via light transmission, the sound signals coming from the source. So the answer is yes, this speaker system is digital.

  Answered 7 years ago by PlinyOfAnalogVerified Purchase

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Q: Questionjust bought the z625 and wanted to add more speakers, is that possible? if so what ones are recommended and what connector cables are needed?

Asked 5 years ago by daisysmom.

• A:Answer Hello Daisysmom. The Z625 is only rated for the subwoofer and 2 satellite speakers. There are only the 2 outputs from the subwoofer to connect 2 speakers. While it is possible to use a splitter and add other non-powered speakers via the left speaker output, it is not recommended as it could blow the amplifier due to mismatched impedance.

  Answered 5 years ago by Logitech

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Q: QuestionCan I run my DELL XPS i7 Windows 10 and mac mini M1 - dual connection to this speaker system?

Asked 5 years ago by apollo2397.

• A:Answer Hello, yes these speakers support multiple inputs simultaneously including optical, 3.5 mm and RCA inputs. Connect up to three compatible devices such as your game console, television and computer. No need to disconnect when switching between audio sources. -Danielle from Logitech

  Answered 5 years ago by Logitech

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Q: QuestionDo these speakers come with an optical cable or is it purchased seperately?

Asked 5 years ago by Rocco.

• A:Answer Hello, an optical audio cable is included in the packaging.

  Answered 5 years ago by Logitech

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Q: QuestionWhat is the difference between the Z623 an the Z625?

Asked 5 years ago by Anonymous.

• A:Answer As far as I can tell, the only difference is the types of input. The Z625 adds an optical input, whereas the Z623 only has 3.5 mm & RCA inputs. All other specs seem to be the same, or close enough to not make a noticeable difference in user experience. Tested in the store, I couldn't really tell a difference in sound. Bought the Z625 because the Z623 was out of stock. Had them for about a month now and I love them. Great tone, great volume - used for PC gaming and music listening while working.

  Answered 5 years ago by BrianVerified Purchase

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Q: QuestionAre these "wireless" speakers?

Asked 6 years ago by John.

• A:Answer No, these speakers have wires between the different components.

  Answered 6 years ago by JTiger102Verified Purchase

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Q: QuestionCan tho be connected to a phone ?

Asked 5 years ago by Emmit.

• A:Answer Hello Emmit. The Z625 features (2x) 3.5mm, RCA (red/white), and optical inputs. You can plug your phone into the 3.5mm input in the subwoofer or the satellite speaker.

  Answered 5 years ago by Logitech

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Q: QuestionWill these work with a 4k TV & 4k blu ray player? I've read they wont decode Dolby or Dts sound?

Asked 5 years ago by Brian.

• A:Answer This model (z623 & z625) do not have any built in decoders. If your Blu Ray player or TV is able to decode then it won't be an issue. You'll likely want to purchase the z625 model and run audio through the optical cable.

  Answered 5 years ago by JonBVerified Purchase

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Q: QuestionDoes the sub woofer have an on/off button or is it powered up at all times? I ordered a Klipsch Pro media 2.1 THX system but cancelled my order because of the sub.

Asked 5 years ago by Trigger.

• A:Answer Yes, actually it has a variable knob to adjust the sub volume down to off.

  Answered 5 years ago by AndrewSVerified Purchase

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Q: QuestionDoes Logitech have different models of the Z623...I have seen Z623 elsewhere that had 400 watts. This one advertised says 130 watts.

Asked 4 years ago by JeanR.

• A:Answer Hello JeanR! There is only one model of the Z623, and it has a Peak Power of 400 watts / 200 watts RMS, and a Subwoofer of 130 watts. So the 130 watts you saw advertised would be for the subwoofer most likely.

  Answered 4 years ago by Logitech

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Q: QuestionCan I connect another pair of the Ihx speakers to the aux out put of the one that does have a out put I run 2 pair of the speakers by a splitter, hopefully I can love the speakers fantastic sound!!!

Asked 5 years ago by Mishkavon1.

• A:Answer Hello. I am not sure I understand your question completely, but I think you're trying to run 2 sets of speakers by plugging one into the computer, and the 2nd one into the Aux output of the first speaker. This will not work because once you plug something into the Aux port on the speaker, it will then mute that speaker and route all of the audio to the 2nd speaker.

  Answered 5 years ago by Logitech

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Q: QuestionWhat is the length of the cable from the right speaker to the bass box and if it is too short can you buy an extension?

Asked 5 years ago by Jerry.

• A:Answer The right speaker cord is six feet in length. Not sure if a oblong pin connector extension cord exists. The sound reproduction of this system is phenomenal!

  Answered 5 years ago by JimmyJonVerified Purchase

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Q: QuestionI just purchased a HP 5QA38AA desk top. Will these speakers connect directly to the back of the computer as purchased.

Asked 6 years ago by Chuck.

• A:Answer No completely familiar with that Desktop. But these speakers I purchased for digital audio. If the pc does not have an optical out for audio, there is a lesser priced version that is analog These are a good set non the less. I have been happy with mine.

  Answered 6 years ago by rn1nduk1Verified Purchase

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