Hafler Trans-nova TRM6 Installation And Operation Manual
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Hafler Trans-nova TRM6 Installation And Operation Manual

Hafler Trans-nova TRM6 Installation And Operation Manual

2-channel audio power amplifier/speaker
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TRM6
Installation & Operation
®
MONITORING SYSTEM
MONITORING SYS

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Summary of Contents for Hafler Trans-nova TRM6

  • Page 1 TRM6 Installation & Operation ® MONITORING SYSTEM MONITORING SYS...

  • Page 2: Declaration Of Conformity

    Importer’s Name: _______________________________________________________ Importer’s Address: _______________________________________________________ Type of Equipment: 2-channel Audio Power Amplifier/Speaker Model No.: TRM6 Serial Number: Year of Manufacture: I, the undersigned, hereby declare that the equipment specified above conforms to the above Directive(s) and Standard(s) Place: Hafler...
  • Page 3 E R F O R M A N C E TRM6 Free Field Frequency Response 55Hz-21kHz, 2dB Peak Acoustic Output Total Harmonic Distortion (THD) <0.5%, 150Hz-21kHz (90dB @ 1m on axis) High Frequency Driver 1" (25mm) Vifa Soft Dome Low Frequency Driver 6.5"...
  • Page 4 TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. READ INSTRUCTIONS All the safety and operating instructions of your Hafler equipment should be read before power is applied to the equipment. RETAIN OWNER'S MANUAL These safety and operating instructions should be retained for future reference.
  • Page 5 LEA LAS INSTRUCCIONES Todas las instrucciones de seguidad y operación de su equipo Hafler, deben ser leídas antes de que el equipo sea conectado dléctricamente. CONSERVE EL MANUAL DEL PROPIETARIO Estas instrucciones de seguridad y operación, deben ser conservadas...
  • Page 6 à éviter toute pénetration dans l'enceinte du matériel. 14. DÉGÂT NÉCESSITANT UNE RÉVISION Le matériel Hafler devrait être révisé par des personnes qualifées de service après-vente, lorsque: A. Les fiches ou la prise de courant ont été endommagé, ou: B.
  • Page 7 Um die gefahr eines elektroschocks oder feuer zu vermeiden, setzen sie das gerät keinem regen oder extremer feuchtigkeitaus. INSTRUKTIONEN LESEN Alle Sicherheits- und Operationshinweise Ihres Hafler Equipments sollten vor der Inbetriebnahme gelesen werden. BETRIEBSANLEITUNG AUFBEWAHREN Bewahren Sie die Bedienungsanleitung sorgfältig auf, damit Sie in dieser auch in Zukunft nachschlagen können.
  • Page 8 Si deve prestar attenzione che oggetti e liquidi, come fluidi detergenti e bibite, non vengano versati all'interno dell'apparato. 14. RIPARAZIONI Gli apparati Hafler devono essere riparati da personale qualificato quando: A. Il cavo di alimentazione o la spina sono danneggiati B.

  • Page 9: Table Of Contents

    A B L E O F PERFORMANCE SPECIFICATIONS ... i Frequency Response Graph Energy Time Curve Graph Horizontal Polar Response Graph Dimensions SAFETY PRECAUTIONS ... ii INTRODUCTION ... 1 TECHNICAL DESIGN FEATURES ... 1 FRONT & REAR PANEL VIEWS ... 4 INSTALLATION Location ...

  • Page 10: Introduction

    N T R O D U C T I O N Thank You and congratulations on your purchase of the HAFLER TRM6 reference monitor, the world's finest brand in professional audio equipment. The TRM6 (Trans•ana Reference Monitor) is a bi-amplified, two-way near field monitor offering unmatched quality and performance in a truly professional grade product.
  • Page 11 MOSFET Devices ® HAFLER is one of the few manufacturers in the sound community to utilize MOSFET devices in both the power supply and output stages. MOSFET (Metal Oxide Semiconductor Field Effect Transistor) devices offer several important inherent advantages over the 30 year old technology of bi-polar design. These advantages include: thermal stability, fast switching speed, ultra low output impedance and wide bandwidth linearity.
  • Page 12 Tweeter Wave Guide ® The wave guide is a proprietary axis-symmetrical form of horn mounted to the tweeter to increase efficiency. The wave guide improves the transition of sound waves (from planar to spherical) smoothly from the throat of the wave guide to the mouth. The unique shape and smooth surfaces improve the tweeter's off-axis frequency response as well as provide coherent on-axis response.

  • Page 13: Front & Rear Panel Views

    – 4 –...

  • Page 14: Installation

    N S T A L L A T I O N LOCATION The location of your reference monitors in addition to the acoustics of the listening room will influence the system frequency response. In the near field environment, our ears are more sensitive to direct sound rather than the reverberation of sound.

  • Page 15: Determining Acoustic Center

    DETERMINING ACOUSTIC CENTER Finding the “Acoustic Center” is accomplished by positioning the monitors so coherent arrival of the transducers occurs at ear level. The Acoustic Center is located 3 to 4 feet in front of the monitor, measuring perpendicularly from the center point of the cabinet (midway between the woofer and tweeter).

  • Page 16: Schematic Diagram

    C H E M A T I C I A G R A M NOTES: Unless specified otherwise 1. All resistors in ohms. 2. All capacitors in microfarads. 3. Channel 1 only shown. – 7 –...
  • Page 17 Qualified Service Personnel Only –8–...
  • Page 18 C H E M A T I C I A G R A M NOTES: Unless specified otherwise 1. All resistors in ohms. 2. All capacitors in microfarads. 3. Channel 1 only shown. Removable Center Spread...
  • Page 19 Qualified Service Personnel Only Removable Center Spread...
  • Page 20 C H E M A T I C I A G R A M -11-...

  • Page 21: Pc Board Layout

    PC B OARD AYOUT – 12 –...

  • Page 22: Operation

    P E R A T I O N NOTE: When using the INPUT SENSITIVITY, select only one switch configuration at a time. Engaging multiple switch configurations (i.e., moving two or more switches ON) may cause undesirable operation and is NOT RECOMMENDED. INPUT SENSITIVITY The Input Sensitivity adjustment is used to match the monitor with signal levels from a variety of mixing consoles.

  • Page 23: Bass Shelving

    AC LINE The TRM6 operates from a 115 VAC/60Hz power line. The TRM6 CE operates from a 230 VAC 50/60Hz power line. Connection is made by a 16 gauge, IEC Type 320, grounded line cord. For safety considerations only a properly grounded (earthed) receptacle should be used.

  • Page 24: Power Switch

    POWER SWITCH The POWER switch is located on the front panel. The LED will illuminate GREEN, indicating the respective amplifiers are on. It is possible to leave the power switch in the ON position and switch the monitor remotely through a power distribution block or switched outlet. When doing so, make sure the switch is rated for the current required by the monitor.

  • Page 25: Parts List

    A R T S I S T DESIGNATOR VALUE ALL RESISTORS IN OHMS RES 1.0K OHM 1/10W 1% RES 47K OHM 1/10W 5% R102 RES 6.8K OHM 1/4W 5% R103 RES 6.8K OHM 1/4W 5% R104 POT 5K 10% PIHER R105 RES 1.0K OHM 1/10W 1% R106...
  • Page 26 RES 100 OHM 1/4W 5% RES 2.21K OHM 1/10W 1% RES 2.21K OHM 1/10W 1% RES 100K OHM 1/10W 5% 619K OHM 1/10W 1% RES 1M OHM 1/10W 5% RES 1M OHM 1/10W 5% POT 2K TRIM RES 6.49K OHM 1/10W 1% RES 6.49K OHM 1/10W 1% 46.4K OHM RES.
  • Page 27 RES 0 OHM 1/4W (JUMPER WIRE) RMP/4-0000-03 VV120 RES 0 OHM 1/4W (JUMPER WIRE) RMP/4-0000-03 6.5" Woofer 1" Tweeter TRM6 MEHSA Bar CONN IEC POWER INLET CHASS1 HARNESS P1000 CHASSIS GND FUSE 3A 3AG SLO BLO FUSE HOLDER CAP 3AG...

  • Page 28: Functional Block Diagram

    TRM6 F UNCTIONAL DC Offset Integrator U8B, C76, R146 Positive CMRR Input Buffer Adjust Negative Input Buffer Protection Switch Soft Start Delay Q24, C70, R13 LOCK IAGRAM +15V Regulator Current Mirror Pre-Driver Q10, Q19 Feedback Differential Amp Networks Q27, Q28...

  • Page 29: Circuit Operation

    Disconnect the power to the amplifier before removing the heatsink assembly from the speaker cabinet. To adjust the bias, remove the jumper JW1 and connect an ammeter across the exposed pins. Adjust trimpots R11 and R9 fully counter-clockwise before reapplying power to the unit. After the Soft Start turn-on has settled, note the ammeter reading.

  • Page 30: Input Circuit

    Input Circuit The input signal is connected to the amplifier through the balanced XLR connector J1, or the unbalanced RCA connector J2. Balanced/unbal- anced switch DS1 will ground the inverting input buffer, allowing operation with an unbalanced signal on either connector. Input buffers U1A and U1B provide a stable input impedance, dominated by R10 and R4.

  • Page 31: Woofer Crossover

    Woofer Crossover Unbalanced 2nd Order LP Input Signal 3200Hz U112B, R85, R98, C64, C48 The input signal at U4A pin 1 connects to the 3200Hz 2nd order low-pass filter at U112B. Approximately 2dB of additional gain can be added to this stage by adjusting R136 against the divider resistor, R137. The next stage is a 30Hz-60Hz switchable sub-sonic high-pass filter.

  • Page 32: Clipping Indicator

    Qualified Service Personnel Only Clipping Indicator Drive CLIP/THERMAL Clipping Signals Indicator Detectors U5A, U5D DRTWT The CLIP indicators are driven by the comparator U5A and U5D. The voltage divider R56, R57, and R51, R61 establishes the reference voltage for the Clipping detector at pin 7 of U5A and pin 9 of U5D. Excessive drive signal at pin 6 or pin 8 will trigger its comparator low and light the CLIP/THERMAL indicator red.

  • Page 33: Tweeter Replacement

    2. Remove wave guide assembly from enclosure 3. Disconnect the LED harness (FIG. 1) 4. Disconnect the (2) speaker wires from the tweeter (FIG. 2) 5. Disconnect the (2) power switch wires (FIG. 3) 6. Unclip the tweeter from wave guide (4 catch fingers) 7.

  • Page 34: Amplifier Replacement

    PCB Mounted LED Harness FIG. 7 PCB Mounted Speaker Wires TRANSFORMER REPLACEMENT The TRM6 is available both 120V and 230V versions. If it is necessary to perform service on the amplifier, be sure to check connections to the transformer before re-applying power and/ or re-assembling the unit.

  • Page 35: Warranty

    Some states do not allow limitations on the length of an implied warranty, so this limitation may not apply. No person is authorized to assume for Hafler any other liability in connection with the sale of the product.
  • Page 36 ® HAFLER A DIVISION OF ROCKFORD CORPORATION 546 SOUTH ROCKFORD DRIVE TEMPE, ARIZONA 85281 U.S.A. 602-967-3565 / 1-888-HAFLER1 WWW.HAFLER.COM This product is designed, developed and assembled in the USA by a dedicated construction of this product are produced by American companies. However, due...

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