Toa 310D Operating Instructions Manual

Operating Instruction Manual

MULTIPLE OUTPUT DIGITAL DELAY

Model 310D

Toa Electric Co., Ltd.

KOBE, JAPAN

Contents

Precautions ..................................................................................................1

General Description ....................................................................................2

Features .......................................................................................................2

Front Panel..................................................................................................3

Rear Panel....................................................................................................4

Sample Sounds.......................................................................................5~6

Block Diagram .............................................................................................7

Specifications ..............................................................................................7

Appearance...................................................................................................8

Precautions

1. Description of components and functions on the 310D

Various descriptions are applied, depending on each manufacturer. In our Operating
and Instruction Manual explanation of components and functions is made according
to our usage for them.

2. To prevent Radio-TV interferences

This equipment generates and uses radio frequency energy and if not installed and
used properly, that is, in strict accordance with the manufacturer's instructions, may
cause interference to radio and television reception. It has been type tested and
found to comply with the limits for a Class B computing device in accordance with
the specifications in Subpart J of Part 15 of FCC Rules, which are designed to provide
reasonable protection against such interference in a residential installation. However,
there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to cor­rect the interference by one or more of the following measures:

...... reorient the receiving antenna

...... relocate this equipment with respect to the receiver

...... move this equipment away from the receiver

...... plug this equipment into a different outlet so that this equipment and receiver

If necessary, the user should consult the dealer or an experienced radio/television
technician for additional suggestions. The user may find the following booklet pre­pared by the Federal Communications Commission helpful:
"How to Identify and Resolve Radio-TV interference Problems"
This booklet is available from the US Government Printing Office, Washington, D.C.,

20402, Stock No. 004-000-00345-4.

are on different branch circuits

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General Description

The Toa 310D is a multiple output digital delay device that is one vertical rack size,

mountable in a 19-inch EIA rack. Three discrete outputs with different delay times are

obtainable from one input signal. With Toa special circuitry that mixes direct and de-

layed sounds and also reverses the phase of the delayed sounds, the 310D offers flang­ing, chorus, doubling or echo effects in stereo.

Features

1. Three different time-delayed outputs can be obtained for one input signal.

2. Delay time can be set between 0 and 999 msec, enabling the faithful reproduction of

subtle sound differences and wider chorus effects.

3. It is possible to mix the direct sound with three different time-delayed signals, and
provide the mixed sound from stereo L and R outputs. Also, a wider stereo chorus
effect can be obtained by activating the cross phase switch.

4. Each of the three different time-delayed sounds can be delivered to individual out­puts.

5. A maximum of 32 overall settings of each of the three delay times and the on/off

status of the CROSS PHASE, DELAY 2(C) PHASE, REGENERATION (FEEDBACK)
and MODULATION switches can be stored.

6. The modulation IN and OUT jacks permit various timbres to be varied by external
control.

7. Maximum chorus effect can be obtained by using two 310D units and connecting

the "modulation in" terminal of the first unit to the "modulation out" terminal of
next, and the "modulation out" of the first unit to the "modulation in" of the next.

8. Both RCA pin jacks and 1/4" phone jacks are provided for input and output, allow-

ing easy connection of mixers for multi-track recorders.

9. Wide dynamic range provided by the combined method of logarithmic companding

and 12-bit digital signal processing.

10. The 310D has a frequency response from 20Hz to 20kHz (±3dB), enabled by a high
sampling frequency.

11. MIDI In, Out and Thru are provided.

12. A built-in MIDI control function offers access to select specific programs from exter-

nal MIDI equipment.

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