Niles Audio DS00356ACN User Manual

Niles Audio

®

Corporation

www.nilesaudio.com

12331 S.W. 130 Street

Miami, Florida 33186

Tel: [phone]

Fax: [phone]

© 2004 Niles Audio Corporation. All rights reserved. Because Niles constantly strives to improve the quality of its products, Niles reserves the right to change product specifications without notice. Niles and the Niles logo are registered trademarks of Niles Audio Corporation. Printed in China 1/04 DS00356ACN

I N S T A L L A T I O N & O P E R A T I O N G U I D E

TVC-1

TABLETOP STEREO VOLUME CONTROL

B L E N D I N G H I G H F I D E L I T Y A N D A R C H I T E C T U R E ®

T A B L E T O P S T E R E O V O L U M E C O N T R O L

TVC-1

Tabletop Stereo

Volume Control

	TABLE OF CONTENTS		Introduction
	Introduction	1	The TVC-1 is a tabletop volume control for speakers. It con-
			nects between the speaker-level output of an amplifier, speak-
	Features and	2	er selector, etc. and a pair of speakers.
			A perfect application for the TVC-1 is adjusting the volume of
	Benefits
			remotely located speakers. The TVC-1 adjusts the volume of
	Installation	5	speakers connected to it by attenuating the amplifier signal.
	Considerations		Niles volume controls use autoformers instead of L-pads for
			the volume controlling element. This assures minimal internal
	Installation	7	power dissipation with virtually no power wasted as heat.
	Operation	9
	Specifications 10

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S P E A K E R - L E V E L V O L U M E C O N T R O L

Balancing Speaker

The volume control

“master” volume for all speaker pairs connected.

The volume level of the speakers may vary from room to room. This is caused by several factors. Two lesser factors are the size of the speaker and its efficiency. The largest factor is the physical size of the room.

The best way to balance speaker volume is to equip each of the speaker pairs in your system with a Niles volume control. The controls allow you to adjust the volume of each speaker pair individually. If all the speaker pairs in your system are equipped with Niles volume controls, you can leave the amplifier or receiver volume set at one position and use the Niles controls exclusively.

SPECIFICATIONS

Audio Power Handling 100 Watts/channel continuous music power

Mounting

Table-top component

Wiring Requirements Individual runs of 2-conductor speaker wire. Connectors accommodate wire sizes 14-22 gauge (16 gauge recommended)

Overall Dimensions 8-1/2" wide x 2" high x 7-1/4" deep

Weight 2-1/4 lbs.

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T A B L E T O P S T E R E O V O L U M E C O N T R O L

Installation Considerations

Calculating the Impedance Magnification Setting

Use the following instructions to select the correct switch setting for the number and type of speakers in your system.

CAUTION! EVERY SPEAKER PAIR IN THE SYSTEM MUST BE CONNECTED TO AN IMPEDANCE-MAGNIFYING VOLUME CONTROL AND SET TO THE SAME MAGNIFICATION.

1.Count the number of pairs of speakers you are connecting to the system.

2.Set the Speaker Pairs switch on the rear panel of the TVC-1 to match the number of pairs of speakers (1, 2, 3/4, 5/6).

TVC-1 Power Handling

The TVC-1 is designed for use with a receiver or amplifier having a maximum power output of 100 watts per channel at 8 ohms. Damage caused by the use of a higher-power receiver or amplifier will void the warranty. Consult your Niles dealer, or receiver/amplifier manufacturer, if you are uncertain about the power rating of your receiver or amplifier.

T A B L E T O P S T E R E O V O L U M E C O N T R O L

7.Insert the smooth side of the connector plug into the smooth side of the socket. Don’t force the scalloped side of the connector plug into the smooth side of the socket. See Figure 2.

The inputs of the TVC-1 are the connector terminals labeled “AMPLIFIER”. The outputs are the connector terminals labeled “SPEAKERS”. Be sure not to reverse these connections or the TVC-1 will not function properly.

8.Locate the pre-printed Room Labels. Affix the appropriate label to the recessed area next to the knob on the TVC-1.

SPEAKER

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Figure 2

Connecting the

Wires

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T A B L E T O P S T E R E O V O L U M E C O N T R O L

“TECH TIP”

	Wire size is expressed
	by it’s AWG
	(American
	Wire Gauge)	the wires
	number. The lower
	the AWG number,	they are
	the larger the wire,
	i.e., 12 AWG wire
	is physically larger	. Tightly
	than 14 AWG.	.
		5. Use a small flathead screwdriver or your thumbnail to raise
		the locking tabs, exposing the holes on the removable con-
		nector plug.

T A B L E T O P S T E R E O V O L U M E C O N T R O L

	Recessed
	area for
	custom	TVC-1 TABLETOP VOLUME CONTROL
	room labels.
	Attractive
	low-profile
	design.

12 position volume control provides greater attenuation than conventional 10 position designs.

Niles Audio Corporation	Miami, Florida USA
3/4 5/6
2	AMPLIFIER	SPEAKER

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SPEAKER PAIRS

Removable screwless connectors

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T A B L E T O P S T E R E O V O L U M E C O N T R O L

6.Insert each wire into the appropriate hole on the removable connector plug, and snap the locking tab down.

NOTE: To help you avoid improper installation, the connector plug is keyed.

Receiver

TUNER 94.9	Figure 1
15	Wiring Diagram

Niles TVC-1

Niles Audio Corporation Miami, Florida USA

3/4 5/6

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AMPLIFIER

SPEAKER

1

SPEAKER PAIRS

Speaker Pair

T A B L E T O P S T E R E O V O L U M E C O N T R O L

Type of Speaker Wire

For most applications, we recommend you use 16 or 18 gauge, stranded copper speaker wire for the TVC-1 connections. For wiring runs longer than 80 feet, 14 gauge wire is recommended. Using speaker wire larger than 14 gauge for the TVC-1 connections is not recommended—the wire may not fit into the connectors. Never use solid-core, aluminum, or “Romex” type wire with the TVC-1. When running speaker wires inside walls, most states and municipalities in the U.S. specify that you must use a special type of speaker wire . Usually, the requirement is that the wire has a specific “CL” fire rating, such as “CL-2” or “CL-3”. Consult your Niles dealer, building contractor, or local building and inspection department if unsure about which type of wire is best for your application.

Avoiding Interference

Speaker wires can act as an “antenna” for electrical noise. Locating speaker wires too close to a light dimmer or switch may cause a “buzzing” or "popping" sound to be heard through the speakers. If you must locate the TVC-1 wiring near electrical devices, route the speaker wires several feet away from the electrical wiring.

TOOLS

REQUIRED

• Wire Stripper

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S P E A K E R - L E V E L V O L U M E C O N T R O L

Operation

1.Make sure the amplifier or receiver power is OFF and set the volume to minimum.

2.Set the TVC-1 volume to maximum (fully clockwise).

3.If you are using a Niles speaker selection system, locate the on/off button which corresponds to the speaker pair you wish to play. Set it to the ON position.

4.Turn on the amplifier or receiver and select a source, such as the tuner or CD player.

5.Slowly turn up the amplifier or receiver volume and set it to a comfortable (not maximum) listening level. Be careful not to overdrive or “clip” your amplifier. If the sound becomes muddy or distorted, you have reached the limit of your amplifier's volume capability and should quickly reduce the volume to avoid damaging your speakers.

6.Using the knob on the front of the TVC-1, adjust the volume of the speakers to the desired listening level.

7.You can turn off the speakers by turning the knob on the TVC-1 fully counter-clockwise, or by pressing the on/off button on your speaker selector.

T A B L E T O P S T E R E O V O L U M E C O N T R O L

Features and Benefits

The TVC-1 offers a number of improvements over other tabletop volume controls:

•Power handling: 100 watts per channel RMS; 200 watts peak

•Selectable impedance magnification for 1, 2, 3/4, 5/6 pairs of speakers

•Individual room on/off selector switches

•12-step controls; 54dB maximum attenuation

•Separate left and right ground paths for compatibility with all amplifiers

•Removable screwless connectors accommodate up to 14 gauge wire

•Rugged all metal chassis construction

•Nonskid feet won’t scratch furniture and ensure unit stability during operation

•72 adhesive-backed room identification labels

•Warranty: Ten-year limited

•Dimensions: 8 1/2" wide x 2" high x 7 1/4" deep

•Shipping weight: 2 1/4 lbs

TECH

SUPPORT

HOTLINE

If you have questions regarding the operation of the Niles TVC-1, contact your local Niles dealer or Niles Customer Service at 1-800-289-4434.

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