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Summary of Contents for Soulution 727
- Page 1 727 preamplifier User manual...
- Page 3 User manual Dear client We are proud that you have chosen a soulution preamplifier. In doing so, you have acquired an audio component of outstanding quality with exceptional sonic perfor- mance which we are sure you will enjoy for many years to come.
- Page 4 CE-Declaration of Conformity Spemot AG declares that this product conforms to the following directives and stand- ards: Low Voltage Directive 2014/35/EU Electromagnetic Compatibility 2014/30/EU FCC-Notice Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
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Page 5: Table Of Contents
727 preamplifier User manual Table of contents Highlights ......................4 Safety advice: ...................... 6 Unpacking ......................7 Scope of delivery ....................8 Setup ........................8 Rear and front view ..................... 9 Connections ....................... 10 Operation ......................14 Configuration ..................... 17 Remote control .................... -
Page 6: Highlights
This secondary, IC based volume control alters the volume without any click or pops. Once the new volume is set, the 727 will revert to the sonically superior path with its high-precision metal foil resistors. - Page 7 Distributed Local Power Supply: The basis for the dual mono power supply of the 727 preamplifier is a switched mode power supply (SMPS) which converts mains voltage into an intermediate DC voltage. Highly efficient DC-DC converters and extremely low-noise and fast linear regulators generate the supply voltages needed to operate the 727 preamplifier.
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Page 8: Safety Advice
during thunderstorms when leaving the unit unused for longer periods Cabling Unplug the 727 from the mains while connecting or disconnect- ing interconnect cables. Incorrect cabling may cause damage to your 727, amplifier or loudspeakers. Excessive volume due to inappropriate handling may cause hearing damage. -
Page 9: Unpacking
Take care; on the sides of the crate. the unit is heavy! Original packing Please keep the original packing for future transport require- ments. Always ship the 727 preamplifier in its original packing. page... -
Page 10: Scope Of Delivery
Do not cover the surface of the 727 preamplifier with a cloth or any other object as the complete chassis acts as a heat sink. -
Page 11: Rear And Front View
727 preamplifier User manual Rear and front view Rear view of the 727 preamplifier A) AC mains input F) LINK in, LINK out B) Balanced inputs IN 1 … IN 3 G) LINK Series 3 C) Unbalanced inputs IN 4, IN 5 H) RS232 –... -
Page 12: Connections
Connect your source devices to the 727 preamplifier with high-quality interconnect cables. For long cable runs, we recommend balanced cables. Thanks to the very high common mode rejection of the 727 preamplifier, any noise picked up by long cable runs is effectively suppressed. For best results, we recommend keeping interconnect and power cables well separated from each other. - Page 13 Connect your source devices with unbalanced interconnect cables to the 727 preampli- fier. For longer cable runs we suggest using the balanced inputs. The balanced input stage of the 727 preamplifier can be configured as a differential or an unbalanced input stage. The configuration functions IN 4: INPUT-TYPE and IN 5: INPUT-TYPE allow you to select the desired mode of operation.
- Page 14 The negative pin of the RCA output is not affected by this set- ting and always remains connected to the ground of the 727 preamplifier. The 727 is a non-inverting amplifier. However, the phase of the output signal can be inverted by using the configuration functions IN x: POLARITY.
- Page 15 Connect the LINK Series 3 socket to the Link-Com socket on your Series 3 unit. Series 3 units connected to the 727 preamplifier via this interface can be centrally switched on and off. Use cables with 3.5mm audio jacks. The LINK Series 3 connection does not convey any audio signal.
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Page 16: Operation
Standby Power-up sequence Ready to operate If the 727 preamplifier is on, the power (K) button will put the unit back into standby (power consumption <1W). mute (L) The mute (L) button disconnects or reconnects all inputs and outputs from the analog circuits of 727 preamplifier. - Page 17 User manual Rotary knob (N) The multi-purpose rotary knob is used to control the volume, select the input, dim the volume, and to select the configuration functions of the 727 preamplifier. Operation-Mode Turning the rotary knob (N) changes the volume.
- Page 18 Display (O) Normal mode 1) Selected input: IN 1 to IN 6 2) Name of the selected input: INx: NAME 3) Current volume level 4) Volume mode: D = DIM, M = MAX, S = SURROUND...
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Page 19: Configuration
727 preamplifier User manual Configuration Function Values Remarks IN 1, IN 2, Defines which input is to be activated IN 3, IN 4, when the unit is switched on. IN 5, IN 6 1..30..50 Defines the start volume level. 1..20..40 Defines the volume for the DIM function. - Page 20 Function Value Remarks ENABLED, Input IN 2 can be (de)activated. Deac- DIASBLED tivated inputs can no longer be selected. OFF, CD, DAC, Input IN 2 can be individually named. PHONO, SACD, TAPE, etc. <- 9...0...9 ->...
- Page 21 727 preamplifier User manual Function Value Remarks CONNECTED Determines whether pin 1 of the XLR out- DISCONNECTED puts become ground or remain floating when input IN3 is selected. ENABLED, Input IN 4 can be (de)activated. Deac- DIASBLED tivated inputs can no longer be selected.
- Page 22 Function Values Remarks <- 9...0...9 -> The balance for input IN 5 can be ad- justed in 1dB steps. IN PHASE This determines whether the output signal INVERTED for input IN 5 is in phase or inverted.
- Page 23 Disabled inputs cannot be selected. When scrolling for a new input, disabled inputs will be skipped and their configuration functions unavailable. All inputs disabled If all inputs are disabled the 727 will not function. The follow- ing error messages will appear: page...
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Page 24: Remote Control
Remote control Button Pre-Modus CD-Modus IR-transmitter Operation up to 5m distance and at an angle of ±45°. (2,3) Volume +/- DIM / Volume-Dim Play/Pause (5/6) Select +/- Next / Previous track ... -
Page 25: Firmware Update
User manual Firmware Update USB-Stick: The firmware of all soulution products can be updated via the USB port on the back panel. To update firmware, please prepare a USB stick (FAT32 formatted, UBS2.0) containing the required firmware data. You can find the latest firmware for your 727 preamplifier on our website www.soulu- tion-audio.com. -
Page 26: Troubleshooting
check whether the power amplifier is switched on check whether the power amplifier is muted OVERCURRENT If a current > 0.5 A is detected at the output of the 727, it switches off and the display shows OVERCURRENT disconnect the 727 from the mains supply ... -
Page 27: Specifications
727 preamplifier User manual Specifications General Nominal voltage 100 - 240 V, 50-60 Hz Power rating 120 W Consumption Standby <1 W ON regular operation 60 W Line-inputs: IN 1...IN 5 Gain +4 dB Input voltage max. 9 Vpp Frequency response... -
Page 28: Dimension Sheet
Dimension sheet page... - Page 30 Spemot AG Industriestrasse 70 CH-4657 Dulliken www.soulution-audio.com info@soulution-audio.com part.no. 92253...
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