Hafler Trans-nova TRM8 Installation And Operation Manual
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Hafler Trans-nova TRM8 Installation And Operation Manual

Hafler Trans-nova TRM8 Installation And Operation Manual

2-channel audio power amplifier/speaker
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TRM8
Installation & Operation
®
MONITORING SYS
MONITORING SYSTEM

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Summary of Contents for Hafler Trans-nova TRM8

  • Page 1 TRM8 Installation & Operation ® MONITORING SYS MONITORING SYSTEM...

  • Page 2: Declaration Of Conformity

    _______________________________________________________ Importer’s Address: _______________________________________________________ Type of Equipment: 2-channel Audio Power Amplifier/Speaker Model No.: TRM8 Serial No. ______________________________ Year of Mfg. I, the undersigned, hereby declare that the equipment specified above conforms to the above Directive(s) and Standard(s) Place: Hafler Date:...
  • Page 3 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 4 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 5 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 6 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 7 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 8 E R F O R M A N C E TRM8 Free Field Frequency Response 45Hz-21kHz, 2dB Peak Acoustic Output Total Harmonic Distortion (THD) <0.5%, 100Hz-21kHz (90dB @ 1m on axis) High Frequency Driver 1" (25mm) Soft Dome Low Frequency Driver 8"...

  • Page 9: Table Of Contents

    A B L E O F SAFETY PRECAUTIONS ... i PERFORMANCE SPECIFICATIONS ... vi Frequency Response Graph Energy Time Curve Graph Horizontal Polar Response Graph 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 TRM8 reference monitor, the world's finest brand in professional audio equipment. The TRM8 (Trans•nova Reference Monitor) is a bi-amplified, two-way near field monitor offering unmatched quality and performance in a truly professional grade product.
  • Page 11 Amplifier Trans•nova (U.S. Patent 4,467,288) ® The trans•nova (TRANSconductance NOdal Voltage Amplifier) is a patented circuit that allows the audio signal to pass through the amplifier at low voltage. Each amplifier channel utilizes its own “fully floating” power supply and is configured to increase power gain. The increase in power gain allows the driver stage to operate at a lower voltage.
  • 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 – 4 –...

  • Page 14: Technical Design Features

    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: Acoustic Center

    100 ST-MP / 100 STX-MP “OmniMount Systems®” is a registered trademark of OmniMount Systems, 1501 West 17th Street, Tempe, Arizona 85281-6255, TEL (602) 829-8000 FAX (602) 756-9000. OmniMount Systems is not affiliated with Hafler or Rockford Corporation. 3-4 ft. Max. listening level...

  • Page 16: Operation

    P E R A T I O N INPUT SWITCH The unbalanced input uses a conventional RCA phone jack. Move the input switch UP to use this jack. The balanced input jack is a dual function connector accepting a 1/4" Phone (Tip-Ring-Sleeve) or an XLR plug. The 1/4" Phone jack is connected according to conventional usage.
  • Page 17 Removable Center Spread...
  • 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: Input Switch

    PC B OARD AYOUT Qualified Service Personnel Only Removable Center Spread...

  • Page 21: Input Sensitivity

    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 up) 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. The Input Sensitivity uses DIP switches to match input levels over a 15dB range and are marked +1dB, –2dB, –5dB, –8dB, and –11dB.

  • Page 22: Bass Shelving

    NOTE: When using the BASS SHELVING & TREBLE SHELVING, select only one switch configuration at a time. Engaging multiple switch configurations (i.e., moving two or more switches up) may cause undesirable operation and is NOT RECOMMENDED. BASS SHELVING Bass Shelving is used to match the low frequency response of the monitor to the acoustic environment. Bass Shelving uses DIP switches to control frequencies from 40Hz to 200Hz over an 8dB range and are marked +4dB, +2dB, –2dB, and –4dB.

  • Page 23: Ac Line

    AC LINE The TRM8 operates from a 115 VAC/60Hz power line. The TRM8 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: Led Indicators

    • Press pad firmly to insure good contact LOGO PROTECTIVE FILM A clear protective film is left intact on the “TRANS•NOVA” and “HAFLER” logos to prevent scratches during shipment. After the monitors are installed, carefully remove the protective layer from the logos.

  • Page 25: Schematic Diagram

    A R T S I S T DESIGNATOR VALUE ALL RESISTORS IN OHMS 2k, 1/10W, 1% 1k, 1/10W, 1% 1k, 1/10W, 1% 47k, 1/10W, 5% 2k, 1/10W, 1% 1k, 1/10W, 1% 1k, 1/10W, 1% 2k, Trimpot 200, Trimpot 47k, 1/10W, 5% 1k, 1/10W, 1% 10k, 1/10W, 5% 100k, 1/10W, 5%...
  • Page 26 R143 3.24k, 1/10W, 1% R144 3.24k, 1/10W, 1% R145 28k, 1/4W, 1% R146 2.2M, 1/10W, 5% R147 28k, 1/4W, 1% R148 604, 1/10W, 1% R149 68, 1/4W, 5% R150 220, 1/10W, 5% R151 220, 1/10W, 5% R152 470, 1/10W, 5% R153 220, 1/10W, 5% R154...
  • Page 27 P Channel MOSFET LM-317, + Regulator LM-337, – Regulator N Channel MOSFET MMBTAO6L MMBT3906L MMBT3906L MMBT3904L N Channel MOSFET P Channel MOSFET MMBT5088L MMBT5088L MPS-A56 MPS-A56 MPS-AO6 MPS-AO6 MMBT5088L MMBT5087L N Channel MOSFET MMBTAO6L MMBT3906L MMBT3906L MMBT3906L P Channel MOSFET MMBT5088L MMBT5088L MPS-A56...

  • Page 28: Functional Block Diagram

    TRM8 F UNCTIONAL +17V Positive Input DC Offset Integrator U8B, R146, C76 Negative Input Protection Switch, Soft Start Delay Q24, C70, R168 –17V LOCK IAGRAM Positive Driver Current Mirror Cascode Q22, Q23 Q29, Q30 DIAMOND CR18, Q33, Feedback Network Differential Amp –...

  • Page 29: Service Reference

    E R V I C E E F E R E N C E CIRCUIT OPERATION Qualified Service Personnel Only trans•nova Implementation The transistor Q24 is configured to operate as a switch which controls the constant current source, Q21, of the input differential amp, Q27 and Q28.

  • Page 30: Input Circuit

    Input Circuit The input signal is connected to the amplifier through the balanced 1/4" or XLR connector J1, or the unbalanced RCA connector J2. Balanced/un- balanced switch D1 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 2500Hz U112B, R85, R98, C64, C48 The input signal at U4A pin 1 connects to the 2500Hz 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 sub-sonic high-pass filter.

  • Page 32: Clipping Indicator

    Clipping Indicator Drive Clipping Signals 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: Waveguide/Woofer Removal

    WAVEGUIDE/WOOFER REMOVAL (10) 3/32" Allen Sockets COMPONENT Tweeter “+” Tweeter “–” Woofer “+” Woofer “–” LEDs “AC4” Power Switch Power Switch TWEETER REPLACEMENT DOME Compression Clip Removal NOTE: The tweeter dome may be replaced up to 3 times without significant loss of magnetic fluid cooling. We recommend replacing the entire tweeter assembly when servicing thereafter.

  • Page 34: Amplifier Removal

    AMPLIFIER REMOVAL ® A Division of Rockford Corp. Tempe, AZ 85281 U.S.A. Made in the U.S.A. TRM8 – Reference Monitor 120V~ 60Hz 250V T5A CAUTION: For continued protection from risk of fire, replace only with same type and rating of fuse.

  • 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. 1-888-HAFLER1 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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