Hafler TRM6.1 Installation & Operation Manual

Manual is about: 2-channel Audio Power Amplifier/Speaker

Summary of TRM6.1

  • Page 2: Declaration of Conformity

    Declaration of conformity application of council directive: 73/23/eec (low voltage directive) standard(s) to which conformity is declared: en55103-1 en55103-2 en60065 (safety) manufacturer’s name: hafler manufacturer’s address: 546 south rockford drive, tempe, arizona 85281, u.S.A. Importer’s name: ...

  • Page 3

    Trm6.1 free field frequency response 55hz–21khz, ±2db peak acoustic output ≥119db (per pair w/music @ 1m) total harmonic distortion (thd) high frequency driver 1" (25mm) vifa soft dome low frequency driver 6.5" (165mm) polypropylene cone/ inverted nitrile rubber surround magnetically shielded cabine...

  • Page 4: C A U T I O N

    Notice - important safety information 1. Read instructions all the safety and operating instructions of your hafler equipment should be read before power is applied to the equipment. 2. Retain owner's manual these safety and operating instructions should be retained for future reference. 3. Heed war...

  • Page 5

    – iii – advertencia – informacion de seguridad importante 1. 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. 2. Conserve el manual del propietario estas instrucciones de seguridad y opera...

  • Page 6

    – iv – attention: informations importantes de sÉcuritÉ 1. Lire les instructions le mode d'emploi et les mesures de sécurité de votre équipement hafler devraient être consultés avant sa mise en marche. 2. Conserver le guide de l'utilisateur le mode e'emploi et les mesures de sécurité devraient être c...

  • Page 7

    Achtung – wichtige sicherheits – informationen 1. Instruktionen lesen alle sicherheits- und operationshinweise ihres hafler equipments sollten vor der inbetriebnahme gelesen werden. 2. Betriebsanleitung aufbewahren bewahren sie die bedienungsanleitung sorgfältig auf, damit sie in dieser auch in zuku...

  • Page 8

    – vi – notare – importanti informazioni sulla sicurezza 1. Leggete le istruzioni tutte le istruzioni riguardanti la sicurezza ed il funzionamento devono essere lette prima di applicare tensione all'apparato. 2. Conservate il manuale queste istruzioni riguardanti la sicurezza ed il funzionamento devo...

  • Page 9

    T able of c ontents performance specifications ........................................................................................................................I frequency response graph energy time curve graph horizontal polar response graph dimensions safety precautions .......................

  • Page 10

    I ntroduction – 1 – thank you and congratulations on your purchase of the hafler trm6.1 reference monitor, the world's finest brand in professional audio equipment. The trm6.1 (trans•ana reference monitor) is a bi-amplified, two-way near field monitor offering unmatched quality and performance in a ...

  • Page 11

    Amplifie – 2 – mehsa (maximum efficiency heatsink application) mehsa is a proprietary process that yields up to 5 times better heat transfer than traditional fet mounting techniques using the exact same components. A multi-layer insulated metal substrate operating with minimal thermal resistance spr...

  • Page 12

    – 3 – 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...

  • Page 13

    Power switch front panel view – 4 – rear panel view woofer tweeter rubber pad status led wave guide heatsink ac line input ac line fuse balanced input unbalanced input sensitivity bass roll off bass shelving treble shelving input switch.

  • Page 14

    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. Below are some recommendations for the ...

  • Page 15

    Xlr balanced input check output from source for proper signal polarity pin 1 = gnd pin 2 = (+) pin 3 = (–) input from source xlr unbalanced input connect (–) and gnd (shield) terminals at both ends of cable to prevent unstable amplifier operation pin 1 = gnd pin 2 = (+) pin 3 = gnd input from source...

  • Page 16

    S chematic d iagram 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

    S chematic d iagram notes: unless specified otherwise 1. All resistors in ohms. 2. All capacitors in microfarads. 3. Channel 1 only shown. – 9 –.

  • Page 19

    Qualified service personnel only –10–.

  • Page 20

    -1 1- s chema tic diagram notes: unless specified otherwise 1. All resistors in ohms. 2. All capacitors in microfarads. 3. Channel 1 only shown. Qualified service personnel only.

  • Page 21

    Pc b oard l a yout qualified service personnel only – 12 –.

  • Page 22

    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. These numbers indicate the input in ...

  • Page 23

    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. When all switches are in the off (left) position,...

  • Page 24

    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, m...

  • Page 25

    – 16 – p arts l ist designator value part # all resistors in ohms r1 res 1.0k ohm 1/10w 1% rm/10-1001b r10 res 47k ohm 1/10w 5% rm/10-473b r102 res 6.8k ohm 1/4w 5% rm/4-682c r103 res 6.8k ohm 1/4w 5% rm/4-682c r104 pot 5k 10% piher rv-502q r105 res 1.0k ohm 1/10w 1% rm/10-1001b r106 35.7k ohm 1/10 ...

  • Page 26

    – 17 – r70 res 280 ohm 1/10w 1% rm/10-2800b r71 res 10 ohm 1/10w 5% rm/10-100b r72 res 100 ohm 1/4w 5% rm/4-101c r73 res 2.21k ohm 1/10w 1% rm/10-2211b r74 res 2.21k ohm 1/10w 1% rm/10-2211b r75 res 100k ohm 1/10w 5% rm/10-104b r76 619k ohm 1/10w 1% rm/10-6193b r78 res 1m ohm 1/10w 5% rm/10-105b r79...

  • Page 27

    Components marked with this symbol are safety critical and should only be replaced with identical components. Los componentes marcados con el simbolo son imprescindibles para la protección del equipo, por lo cual que solo sean reemplazados por los mismos componentes. Les componsants marqués du symbo...

  • Page 28

    Trm6.1 f unctional b lock d iagram – 19 –.

  • Page 29

    Circuit operation trans•ana implementation the transistor q24 is configured to operate as a switch that controls the constant current source q21 of the differ- ential amplifier q27 and q28. Switch q24 is under the control of the thermal and turn-on circuits, and provides a soft start turn-on ramp ac...

  • Page 30

    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 sta...

  • Page 31

    Woofer crossover 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. This is...

  • Page 32

    – 23 – clipping indicator 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 sig- nal at pin 6 or pin 8 will trigger its comparator low ...

  • Page 33

    – 24 – tweeter replacement qualified service personnel only 1. Remove (4) screws from wave guide using a 3/32" allen wrench 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 sw...

  • Page 34

    Amplifier replacement – 25 – qualified service personnel only 1. Remove (2) screws from back using a 3/32" allen wrench (fig. 5) 2. Disconnect pcb mounted led harness (fig. 6) 3. Disconnect pcb mounted tweeter speaker wires (fig. 7) 4. Disconnect pcb mounted woofer speaker wires (fig. 7) 5. Disconne...

  • Page 35

    S ervice p olicy and l imited w arranty – 26 – rockford corporation (hafler division) offers a limited warranty on hafler products on the following terms: • length of warranty 1 year on reference monitors • what is covered this warranty applies only to products sold to the original owner and is non-...

  • Page 36

    Lit 11382 11/00 e.W.R. Hafler a division of rockford corporation 546 south rockford drive tempe, arizona 85281 u.S.A. 1.866.Gohafler 480.967.3565 www.Hafler.Com made in the usa this product is designed, developed and assembled in the usa by a dedicated group of american workers. The majority of the ...