T H E S O N I C F R O N T I E R S L I N E S E R I E S P R E A M P L I F I E R S OWNER’S MAN UAL L I N E L I N E L I N 1 2 E P R E A M P L I F P R E A M P L I F I E R 3 P R E A M P L I E R A N D I F I E P O W E R R A N S U P P L Y D P O W E R S U P P L Y
OPERATING MANUAL FOR THE SONIC FRONTIERS LINE SERIES PREAMPLIFIERS We at Sonic Frontiers hope you will derive many years of listening pleasure with your new LINE Series Preamplifier. This Operating Manual contains important information regarding the operation and care of these Preamplifiers. Be sure to read this manual carefully and follow these instructions in order to keep them performing and sounding their best.
UNPACKING At this point we assume that you have successfully opened the box flaps and found this manual. These boxes were designed to ensure the safe transport of the LINE Series Preamplifiers. Sonic Frontiers strongly recommends the storage of these boxes in a safe dry place. In the event that the Line 1, Line 2, or Line 3 may have to be shipped in the future, the original boxes are the best means for the protection and safety of the preamplifier during transportation.
OP E RA T ION, C O NNE CT I ON S AN D C ON TRO L F U NC TI O NS LINE 1, LINE 2, AND LINE 3 FRONT PANEL Note: This diagram applies to ALL LINE Series preamplifiers, as they all have identical front panel functions.
O PER A TI O N, CO NN E CT IO NS AN D CO NT R OL FUNC T I ON S LINE 2 POWER SUPPLY REAR M N AND C ON T’ D FRONT PANELS Y Z Figure 4 - Line 2 Power Supply Rear and Front Panels LINE 3 POWER SUPPLY FRONT PANEL Z Figure 5 - Line 3 Power Supply Front Panel LINE 3 POWER SUPPLY REAR PANEL Y N Figure 6 - Line 3 Power Supply Rear Panel AA
CONTR OL AND CONNE CTION FUNCTIO NS A- XLR Balanced Input Buttons (BAL 1, BAL 2) These buttons will select a balanced input signal connected to one of the XLR Balanced Inputs. When selected the LED display window will light BAL 1 or BAL 2. Input volume levels can be preset and saved in memory. See “K” below. Note: Whenever you select a new input, there is a ramp up in volume as the preamp resets to your saved level. The duration of the ramp up is dependent on the output level.
C ONNECTION S A ND CONT ROL F UNC TIONS To store a volume/balance setting, adjust the volume and balance to the desired level then press and hold the button corresponding to that input until the LED window blanks (about 4 seconds), then release. Once the level is saved in memory for each given input, it will be recalled every time that input is selected again. Levels saved in memory will not be affected by unplugging the power from the unit. Note: The volume default for all inputs is factory set at 30.0.
P RE A MPL IF IE R S ET -U P You are now ready to begin setting up your preamplifier. INSERTION OF THE TUBES WARNING DISCONNECT the AC Detachable Power Cord from the Line 1 Main Chassis or Line 2 & Line 3 Power Supply before removing the Preamplifier chassis cover. LV1 V1 LV2 V2 LV3 V3 Please read and follow these instructions carefully. Great care was taken in the testing, selection and matching of the supplied tubes in order to ensure proper operation of the unit.
PREAMPLIFIER SET-UP CONT’D 5. Take the LV1 tube and inspect the pins noting the large space between two of the pins. This space will align with the same larger space between two of the pin holes on the socket. Insert the LV1 tube into the LV1 tube socket, making sure all pins and pin holes are aligned (see Figure 10). Do not force the tube into the socket. Rock the tube gently while pushing slowly until the tube is firmly seated.
PREAMPLIFIER SET-UP CONT’D POWER CONNECTIONS HOME THEATRE ACCESSORIES (OPTIONAL) Once all input and output signal connections are made, you can begin to make the power connections. There are two external connections provided for customization of you home theatre set-up. These are the I.R Jack (Infra Red) and the Relay Trigger. Both of these connections accept a 3.5 mm stereo plug as shown below.
POWERING ON & STARTUP PROCEDURES Do not attempt to turn on your preamplifier until ALL prior steps have been completed. 1. The Line 1 or Line 2 Power Switch (M), or Line 3 power button (AA) should be switched to the ON position. The LED display window will initially remain blank for 10 seconds. During this time (PRE-STANDBY), power is being applied to the tube filaments. After 10 seconds six (6) dots will light up in the LED display window. The preamp is now in STANDBY mode. 4.
R EM OT E CO NT R O L FUN CT I ON S 1 2 3 4 5 6 7 8 9 10 11 12 13 1- Dual Infra Red Emitters - These emitters transmit the coded data from the remote control to the LINE Series main chassis front panel. Do not obstruct the infra red beam. 8- Mute - The preamp can be muted by pressing the mute button. When the signal is muted, “MUTE” will be indicated in the LED display window. When coming out of MUTE the volume will ramp-up to the selected level (at a rate dependent on this level).
MO D E F UN CTI O N When the MODE button is depressed the STEREO inputs from both the left and right channel are combined or blended to MONO operation. This gives a reduction in “separation” from approximately 100dB down to approximately 8dB between STEREO channels and is desirable for reducing apparent separation between stereo speakers, or for establishing the the proper spacial effect for more natural reproduction using stereo headphones.
TROUBLE SHOOTING If the LINE Series Preamplifier is not functioning properly, please check each of the following: WARNING Fuse DISCONNECT the AC Detachable Power Cord from the Line 1 Main Chassis or Line 2 & Line 3 Power Supply before beginning troubleshooting. 1. Check that the Power Supply Umbilical Cord (Y) is connected correctly to the Power Supply Input Socket (X).
SAFETY INSTRUCTIONS 1. Ventilation - Although your LINE Series Preamplifier generates only nominal heat in use, be sure that the ventilation slots in the top cover have at least 6” of unobstructed air space above them. Do Not obstruct the bottom vent by operating the preamplifier on carpet or with the rubber feet removed. 2. Water and Moisture - This product should not be used near water. Do not expose this product to rain or moisture to prevent fire or shock hazard. 3.
T EC H NI CAL S PE C IF I CAT I ON S 14 LINE 1 T EC HN I CAL SPE CI FI CAT IO NS LI NE 2 T EC HN I CAL SPE CI FI CAT IO NS Frequency Response 2 Hz to 250 kHz -0.5 dB > 500 kHz -3.0 dB at 2V RMS output Frequency Response 2 Hz to 250 kHz -0.5 dB > 500 kHz -3.0 dB at 2V RMS output THD & N < 0.01% from 20 Hz to 20 kHz Balanced < 0.01% Unbalanced (single-ended) Output at 2V RMS THD & N < 0.01% from 20 Hz to 20 kHz Balanced < 0.
TEC HNI C A L SP EC I FIC A TI O NS CONT’D LI N E 3 TE CH NIC AL SP EC IFIC ATI ON S Frequency Response THD & N* Gain 2 Hz to 250 kHz +/- 0.5 dB > 1 MHz -3.0 dB at 2 VRMS output < 0.01% from 20 Hz to 20 kHz Unbalanced (single-ended) or Balanced output at 2 VRMS 18 dB @ 1 kHz (balanced) 12 dB @ 1 kHz (single-ended/unbalanced) REMO TE C ONTRO L TEC HN ICA L SPECIFICATIONS Infra Red Wavelength 890nm (nanometers) Battery 2 AAA 1.5V Dimensions 3” Diameter X 1 1/8” H Weight .1395 Kg (.
We at Sonic Frontiers are sure that you will derive many years of listening pleasure with your new LINE Series Preamplifier and Power Supply. This Owner’s Manual contains important information regarding the operation and care of the LINE Series Preamplifiers. Be sure to read this manual carefully and follow these instructions in order to keep it looking, operating and sounding its best. Sonic Frontiers can be reached from 9:00 a.m. to 5:00 p.m., Eastern Standard Time, or 24 hours a day by facsimile.
