REAR PANEL DESCRIPTION

This is where you connect your signal to the monitor, and make adjustments to the frequency response of the speakers to match the monitor’s location and your room’s environment.

SIGNAL INPUTS

The location of the signal input jacks makes the connectors exit down and not straight out the back of the enclosure. This flush-mount design allows you to place the monitor right up against the wall if desired.

•XLR female, TRS female, and RCA female connectors, parallel connected.
•Don’t connect more than one source to the jacks.

•You can use the remaining jacks as “Thru” jacks for daisy-chaining the signal to another monitor or to another amplifier. If you do this, be aware that unbalancing the signal anywhere along the chain does so for all devices connected to the chain. This negates the benefits associated with balanced lines and inputs.

•Unbalanced TS (tip-sleeve) lines can be accommodated via the TRS jack. Make sure the cable terminates with a TS plug (like a guitar plug), or if it’s a TRS plug (such as a headphone plug), make sure the ring is tied to the sleeve and that the plug is fully inserted into the jack.

INPUT SENSITIVITY

–10dB

OFF NORMAL

INPUT

SENSITIVITY

The HR824 expects a line-level signal at its input connectors.

•The reference sensitivity is –7.5 dBu=100 dB SPL at one meter (39 inches) with the INPUT SENSITIVITY control set to its NORMAL position (in other words, wide open).

•The HR824 is designed to operate with a +4 dBu signal when the INPUT SENSITIVITY control is in the NORMAL position.

•Refer to the QUICK START section on page 4 for the level-setting procedure.

ACOUSTIC SPACE

This is a three-way switch that adjusts the low-frequency response of the speakers to compensate for their placement in the room.

A B C

QUARTER HALF WHOLE (NORMAL)

ACOUSTIC SPACE

•When using a TS or TRS plug, make sure it is pushed all the way into the jack. Par- tially inserting the plug into the jack could result in a drop in signal level (by 6 dB).

•The XLR and TRS input connectors accept balanced or unbalanced signals. The connectors are wired as follows (per the AES/IEC standard):

 

XLR
TRS
RCA
Hot (+)
Pin 2
Tip

Tip

Cold (–)

Pin 3

Ring

—

Shield (Ground)

Pin 1

Shield
Shield

•The HR824s can be used with a home receiver even if the receiver lacks a preamp output by using a speaker-level to line-level signal attenuator. (See page 13 for more information.)

•If you place the HR824 monitors against a

wall (half space ), set the ACOUSTIC SPACE switch to the “B” position. This activates a shelving filter to reduce the low- frequency output by 2 dB to compensate for the half-space placement.

•If you place the monitors into the corners of your room (quarter space), the low- frequency output approximately doubles from what it is in half space. Set the

ACOUSTIC SPACE switch to the “A” position to reduce the low-frequency output by 4 dB to compensate for the quarter-space placement.

•If you use the HR824s free-standing, away

from walls and corners (whole space ), set the ACOUSTIC SPACE switch to the “C” position (NORMAL).

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