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Grimm Audio LS1 Manual

Playback system
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Summary of Contents for Grimm Audio LS1

  • Page 2 DRIVEN TO IMPROVE...
  • Page 3 Congratulations on your purchase of the Grimm Audio LS1 playback system. In this manual we like to assist you in setting up the LS1 playback system. You will learn how to connect various sources and how to control the electronics, the LS1r Controller and the LS1 remote software for Mac and PC.

  • Page 4: The Acoustics The Electronics

    We started with smart concepts and measurements but we did not stop there. We listened. And doing so we developed a loudspeaker system that is equally at home in a studio as well as in a living room. The LS1 is a true step forward into the 21st century.

  • Page 5: Positioning

    LS1 however is that the LS1s subwoofer can be taken off the foot plate of the main and room modes (or room resonances). Lateral first reflections influence the stereo system so both can be positioned independently.
  • Page 6 Mark that by turning the left LS1 like this, its reflection on the right wall will become enforced by reflections and therefore the stereo image shifts to that side. A quick and easy relatively louder.

  • Page 7: Ls1S - Subwoofer

    By selecting a moderately large high performance driver with a very long linear excursion, as a 2-way system. If you set the low-cut frequency down to 35Hz or even 28Hz the LS1 sufficient air can be moved and the DSP in combination with a powerful 400W amplifier will still stay completely linear, only the maximum achievable sound level becomes lower.

  • Page 8: Unpacking And Assembly

    Unpacking And Assembly Unpacking And Assembly If you are ready to assemble your pair of LS1‘s, please first make yourself familiar with all components in the box. The open transport package should look somewhat like in the pictures on the left. First take out the ’accessory box‘, the CAT5 cables, both speaker cabinets and the extruded aluminium profiles, which for simplicity from here on shall be called ’legs‘.
  • Page 9 Unpacking And Assembly Unpacking And Assembly Take a speaker cabinet and lay it down on the empty and closed shipping crate or on a big, clean table, with the drivers facing up. Place two of the legs next to it, one with and one without electronics. Normally, when setting up in a living room, you´ll prefer the electronics panel facing to the back side of the speaker in order to look uncluttered.
  • Page 10 (found in the ’accessory box‘) on the top part of the inside of the legs. Screw them in, but don´t tighten them completely yet, so we can still allign all the edges exactly by hand later on, once the LS1 are in place, because we also want them to look good... page 18...
  • Page 11 Unpacking And Assembly Unpacking And Assembly From now on it is really helpful and recommended to have a second person to help you setting up the speakers. The footplate is mounted with the four hexagon socket screws found in the ’accessory box‘...
  • Page 12 Best is to directly place the LS1 close to the right spot in the room. If you are on your own, the easiest way to carry the speaker is to stand behind it and grab it underneath the bottom profile of the cabinet with both hands.

  • Page 13: Hardware Control Settings

    Hardware Control Settings Internal flow diagram of LS1 The LS1 is not just a speaker but a complete playback system. On the left page you see a flow diagram that illustrates the various internal processes. First there are switches that select a signal from the various sources.
  • Page 14 ’the magic combination‘. In the LS1 we do the opposite, the signal path is as short and pure as possible and alle elements of the system are selected for an optimal joined performance. This way all coloration is minimized.
  • Page 15 -> The Grimm Audio LS1r Controller has an infrared sensor. So any universal IR-remote can be used to remotely control these three functions! Please learn how to program your remote on the next page.

  • Page 16: Ls1R - Controller

    Next setting after pressing the dial is ‘ dis ’ or ’display‘. The options here are: ‘ vol ’, ‘ off ’ and see ‘ AL ’. This calibrates the 0.0 volume point of the LS1 remote. If you ‘ inp ’, which means you can choose if you want your display to show the ‘volume’, be ‘off’ or turn the dial clockwise it shows ‘...

  • Page 17: Software Control Settings

    7. A click on the EQ button opens the EQ tab of the preference window. The button also indicates whether the EQ of the LS1 is set to flat or not. If the EQ is not flat, the system is adjusted to taste and may not be linear anymore.
  • Page 18 7. A click on the EQ button opens the EQ tab of the preference window. The button also indicates whether the EQ of the LS1 is set to flat or not. If the EQ is not flat, the system is adjusted to taste and may not be linear anymore.
  • Page 19 (-> This function offers a great tool while setting up your LS1‘s. Listen to the mono sum of your music in turn on the left and right speaker and move your loudspeakers until both sound identical.) 13.
  • Page 20 USB interface. In the ’Midi connection settings‘ the LS1 USB interface should automatically be selected if the LS1i USB interface is connected and the LS1's are turned on. If not, please use the dropdown menu to select the ’Grimm Audio USB interface‘ for both the input and output. We will get back to the Pro Settings page later.
  • Page 21 Software Control Settings To perform your initial LS1 setup, please have a look at the LS1 page. We will guide you through all settings here. Most settings are stored in the LS1 and the remote as soon as you change them.
  • Page 22 ’larger‘, sound. In that case, again use the ’45°‘ setting for compensating the treble roll off at the listening position. In case you like to place the LS1‘s parallel to the wall (’0°‘) it is also advised to use the ’45°‘ setting and maybe apply some EQ to taste (see next page of the preferences).
  • Page 23 If you select one of the four remaining presets, the EQ faders become functional and can be set to taste. By clicking the ’Save in LS1‘ button you save an EQ setting to the LS1 internal memory. This EQ will be used when the remote software is not running.
  • Page 24 -> Never use the non-Grimm subwoofer option with a Grimm Audio LS1s subwoofer. The frequency response of the LS1s is linearized in the LS1 DSP and the woofer / sub-woofer crossover is phase compensated. Both functions are de-activated in the non-Grimm subwoofer mode.
  • Page 25 If possible, please make sure to set your subwoofer to ’linear‘ and use the crossover of the LS1 in stead of the filter in the sub. A crossover setting near 70 Hz will usually work well. The final parameter is polarity. You may turn the polarity of the subwoofer in phase or out of phase to optimize the crossover region.
  • Page 26 (or an associated virtual midi channel) for input data and the LS1 USB interface for output data. If you do not own the LS1 USB interface, you can also use a generic midi interface to communicate with the LS1. Grimm Audio can supply a ’midi to Grimm cat5‘ conversion box to you.
  • Page 27 (optionally) by pressing the volume knob of the remote. Warning indication - This turns on a warning indication by blinking the power LEDs on the LS1 fronts. The indication is triggered when the excursion limiter or other safety systems like clip or heat limiters set in and the LS1 system is not perfectly linear anymore.
  • Page 28 Firmware - In this field the firmware version of the connected LS1's is indicated and you can compare it to the firmware version that is shipped with the LS1 remote software. If you see the software has a newer firmware version then your LS1's, you are advised to perform a firmware update.
  • Page 29 2. Now you can connect the LS1i USB interface to the speakers. In our example we will start with the left speaker, so we connect the ’To LS1 control in‘ with the ’digital in 2 / control in‘ of to Mac/PC CAT 5 the left speaker via the CAT5 cable.

  • Page 30: Connectivity

    LS1r Controller and the internal dsp's in the LS1. Please mark that the LS1 only uses the physical CAT5 connector that is also used for ethernet, but it is not a network connection. NEVER connect the LS1 to an ethernet router or computer! USB: Used for connecting a computer or media player.
  • Page 31 -> Here both speakers must be connected to the respective left or right line level output from your analog source. If no LS1r or LS1i is connected and there is no digital source present, the LS1 defaults to the analog input.
  • Page 32 -> Here both speakers must be connected to the respective left or right line level output from your analog source. If no LS1r or LS1i is connected and there is no digital source present, the LS1 defaults to the analog input.
  • Page 33 Please use the short male to female power cable that we supply with the LS1s to connect power from the LS1s power outlet to the LS1. The power switch on the LS1 electronics can now always be left on and the complete system is powered on/off via the power switches on the subs.

  • Page 34: Table Of Contents

    Not es Table Of Contents Welcome / Overview page 5 The Acoustics / The Electronics page 6 Positioning page 8 LS1s - Subwoofer page 12 Unpacking And Assembly page 14 Hardware Control Settings page 24 LS1r - Controller page 26 Software Control Settings page 32 Connectivity...

  • Page 35: Technical Specifications

    Grimm 1550 Hz - 4th order Linkwitz Riley Audio reserves the right to update any unit returned for repair. Grimm Audio reserves the right to 70 Hz - 2nd order Linkwitz Riley (3-way system) change or improve design of the product at any time without prior notice.
  • Page 36 Grimm Audio Strijpsestraat 94 5616 GS Eindhoven The Netherlands info@grimmaudio.com www.grimmaudio.com Grimm Audio LS1 Manual, English, Version 3.00...

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