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アンプ ATI Technologies HDA600のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。ATI Technologies HDA600 4 ページ。

and output jacks. Individual direct inputs can also be configured as BALANCED MONO

inputs (HI-LO-SHLD = TRS) by moving internal jumper plugs PX01 to the BAL MONO

position and adding a jumper plug at PX02 to combine left and right output channels.

PX02 can also mono sum a single output if desired. (X in a part number indicates

channel 1 thru 6).

A SIGNAL PRESENT indicator for each output channel indicates at about 30dB below

nominal input levels. The HDA600 includes an internal bi-polar power supply that will

operate at 115 or 230VAC by changing internal jumpers. The power cord is a standard

IEC320 type that you can easily swipe from someone else if you lose it.

CONNECTIONS

Balanced inputs are connected with their HI to XLR pin2 or TRS -TIP and LO to XLR

pin3 or TRS-RING, Shields go to XLR pin1 or TRS-SHLD. Unbalanced input lines

should be connected with their center hot wire to XLR pin 2 or TRS-TIP and with the

cable shield to XLR pin 1 or TRS-SHLD. Be careful to observe HI-LO input polarity to

avoid monaural or center stage cancellation effects

The HDA600 is shipped setup for -10dBu nominal Program input level (+12dBu peak).

An internal jumper plug P2 may be moved to accommodate levels at +4dBu nominal

(+22dBu peak). To change P2, remove the top cover by removing the four upper Phillips

head screws (two on each side). P2 is located on the right side of the PC board directly

behind the volume control and has two positions; for –10dBu inputs move the plug to

the left, for +4dBu inputs move the plug toward the right. Ensure that no internal wiring

is caught or pinched, replace the cover and screws.

Use only TRS output plugs and stereo headphones. The use of TS plugs on mono

headphones shorts one headphone output to ground. Although this will not damage the

HDA400, it will load down the power supply and reduce maximum output levels to the

other output channels. Output TRS plugs should all be wired Left to TIP, Right to RING

and common to SHIELD.

CAUTION

The HDA600 provides a comfortable listening level of 1mW at around 12 o'clock on the

volume control for most headsets. The HDA400 is capable of driving many headsets to

DANGEROUS LEVELS over 120dB SPL. If you can hear distortion, it is TOO LOUD!

Levels near 120dB SPL can easily cause PERMANENT HEARING DAMAGE.

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