Hafler TRM10.1 Operation, Auto TURN-ON / Sleep Mode, Input Sensitivity Gain, LOW-PASS Crossover

Page 20

OPERATION

AUTO TURN-ON / SLEEP MODE

The TRM10.1/TRM12.1 subwoofers automatically turn on when they sense an input signal. When the signal being fed to the TRM10.1/TRM12.1 is turned off, the subwoofer's amplifier will turn off and go into "sleep mode." This feature eliminates the inconvenience of operating a mechanical switch.

INPUT SENSITIVITY (GAIN)

The Input Sensitivity is used to match the TRM10.1/TRM12.1 with signal levels from a variety of mixing consoles. The Input Sensitivity uses a variable potentiometer to match input levels over a 30dB range and is variable from 0dBu to -30dBu. The numbers listed on the back panel indicate the input in dBu required to produce an output of 100dB SPL @ 1 meter. When the control is set to its full CLOCKWISE position the monitor is matched to 0dB input level (the input circuit is less sensitive to the amplitude of the input signal). When the control is set to its full COUNTER CLOCKWISE position the monitor is matched to -30dB input level (the input circuit is more sensitive to the amplitude of the input signal).

LOW-PASS CROSSOVER

The Low-Pass Crossover is used to set the electrical cutoff point of the subwoofer enclosure. The Crossover uses a vari- able potentiometer to set the cutoff point anywhere between 40Hz and 140Hz. When the control is set to its full CLOCK- WISE position the cutoff frequency is set to 140Hz Low-Pass. When the control is set to its full COUNTER CLOCKWISE position the cutoff frequency is set to 40Hz Low-Pass.

It is important to match the Low-Pass crossover point of the subwoofer with the High-Pass crossover point of the high fre- quency reference monitors. Mismatching the crossover points can cause peaks or dips in the acoustical response. Overlapping the crossover points (i.e., subwoofer at 60Hz Low-Pass & high frequency monitors at 50Hz High-Pass) will cause a peak between 50Hz and 60Hz. Underlapping the crossover points (i.e., subwoofer at 40Hz Low-Pass & high fre- quency monitors at 70Hz High-Pass) will cause a dip between 40Hz and 70Hz.

*This graph was generated by setting the variable crossover to

40Hz, 50Hz, 60Hz, 70Hz, 80Hz, 90Hz, 100Hz, 120Hz & 140Hz.

Electrical Crossover Response*

– 11 –

Page 19 Page 21
Image 20
Page 19 Page 21
Contents Page Declaration of Conformity Cleaning Damage Requiring ServicePower Sources Power Cord ProtectionLEA LAS Instrucciones Conserve EL Manual DEL PropietarioCuadros DE Advertencias Siga LAS InstruccionesSuivre LE Mode Eemploi Lire LES Instructions11. Périodes DE NON-UTILISATON Conserver LE Guide DE LutilisateurAchtung Wichtige Sicherheits Informationen Notare Importanti Informazioni Sulla Sicurezza Performance Specifications CmrrTable of Contents Technical Design Features IntroductionMehsa Subsonic Filter TRM10.1 Schematic Diagram Page Schematic Diagram Qualified Service Personnel Only Output Circuitry Installation Studio InstallationsHome Theater Installations LocationInputfrom Source Input SwitchXLR Wiring Configurations Auto TURN-ON / Sleep Mode OperationInput Sensitivity Gain LOW-PASS CrossoverPhase Control Setup ProcedureAC Line LED IndicatorCleaning & Maintenance PC Board Layout Parts List Designator ValueModel TRM10CE/TRM12CE Phase Control Circuit Input CircuitMono SUM/GAIN Circuit BUFFER/GAIN Trim CircuitSoft Start Circuit Thermal Protection Power ON/OFF CircuitSignal Sensing TURN-ON Circuit Circuit Calibration Amplifier Replacement Woofer ReplacementService Policy and Limited Warranty What is CoveredMade in the USA

TRM12.1, TRM10.1 specifications

The Hafler TRM12.1 and TRM10.1 are professional studio monitors engineered to deliver exceptional sound reproduction within various audio environments. As part of Hafler's prestigious legacy in audio equipment, these monitors cater to audio professionals seeking durability, accuracy, and an impressive performance for mixing, mastering, and high-fidelity playback.

One of the standout features of the TRM12.1 is its 12-inch woofer, which provides a deep and powerful bass response, ensuring that low frequencies are rendered with clarity and precision. This is especially important in genres that emphasize bass, such as electronic music and hip-hop. The TRM10.1, on the other hand, is equipped with a slightly smaller 10-inch woofer, making it an ideal choice for smaller spaces or for users who prefer a more compact solution without sacrificing sound quality.

Both models utilize advanced drive technologies and high-quality components. The tweeter in each speaker is designed for wide dispersion and low distortion, allowing for a balanced high-frequency response that is essential for detailed mixing tasks. This design ensures that the monitors provide a natural and transparent sonic experience, making it easier for audio professionals to make critical listening decisions.

The unique enclosure design of the TRM series minimizes resonance and acoustic interference, which helps to achieve a cleaner and more precise sound stage. The cabinets are constructed from high-density materials to reduce vibration, providing a stable platform for the drivers to perform optimally.

Connectivity is another strong point of the TRM12.1 and TRM10.1. Both monitors feature a variety of input options, including balanced XLR and TRS connectors, making them versatile for integration into different studio setups. This flexibility allows users to connect the monitors to various types of audio interfaces and mixers easily.

User control is facilitated by adjustable rear bass and treble EQ controls, empowering users to tailor the sound to better fit their room acoustics. This feature is particularly useful in situations where room reflections may affect sound quality.

In conclusion, the Hafler TRM12.1 and TRM10.1 studio monitors represent a blend of advanced technology, robust construction, and user-friendly features. Whether in a professional mixing environment or a home studio, these monitors provide the fidelity and reliability that audio professionals depend on to bring their creative visions to life. With their impressive performance and thoughtful design, the TRM series continues to uphold Hafler's tradition of excellence in audio engineering.
Top Page Image Contents