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4

Introduction and Performance Features

Important Information

Caution: To prevent electrical shock make sure that the AC

POWER CORD IS NOT CONNECTED TO THE SE84C when

inserting or removing Vacuum Tubes, as there are haz-

ardous voltages present at the pins of the Tube Sockets.

When Vacuum Tubes are installed or removed make sure to seat

them properly in the tube sockets.  A properly installed Vacuum

tube should seat all the way down making the tube pins no longer

visible.

If the SE84ZS has been on , understand that the tubes will take

time to cool off before they can be safely removed.

For additional connection information, refer to the owner’s manual

for any components connected to the SE84ZS.

It is very important that loudspeaker cables of adequate size be

used, so that there will be a minimum power loss.  The size is

specified in Gauge numbers or AWG (American Wire Gauge).  The

smaller the Gauge number, the larger the wire size.

Connection Terminals will accept up to a 8 AWG wire size:

Connector Information

The SE84C is fitted with what are called “single

ended” RCA type input connectors.  These are

located along the rear of the amplifier.  Another

popular type of connector is known as XLR or

“balanced” inputs.  The SE84C does not use bal-

anced inputs because contrary to popular belief

they do not automatically sound better.  Balanc-

ing is a system wide concept developed for pro

audio to reduce noise an facilitate long cable

runs of in many cases over 100 feet.

The speaker binding posts are designed to facili-

tate the use of bare wire by inserting it in the

horizontal hole and tightening the post down

onto it.  They can also accept a spade connector

with the same tightening technique.  In addition

there are vertical holes visible in the top of each

binding post that are designed to accept banana

jacks.

BOTH INPUT AND OUTPUT CONNECTORS are

color banded to indicate left / right or positive /

negative.  The RED is POSITIVE or RIGHT

CHANNEL.

Fuse location / Information

The fuse is integrated into the IEC power cord

connector at the back of the SE84C.

Use a

GMA 

(20mm x  5mm)

 250 volt

3 amp fuse only.

If your loudspeaker cables are 50 feet (38.1m) or less, use at

least 14 Gauge.  If your loudspeakers are 100 feet (76.2m) or

less, use at least 12 Gauge.  NOTE:  Beyond power loss, there

can be other sonic reasons to employ larger Gauges.

DECWARE makes a speaker cable guaranteed to be in the top

5% sonically regardless of price, called ZENSTYX.  It is often

recommended with this amplifier even in shorter lengths of 10

feet.

TO ACCESS FUSE, REMOVE POWER CORD and

PRY FUSE HOLDER LOOSE WITH SMALL

SCREWDRIVER AS SHOWN.

The fuse holder contains a spare fuse as

shown.  To reinstall just snap the new fuse in

place and snap the fuse holder back into the

IEC connector.

WARNING

NEVER INSTALL A FUSE WITH A

HIGHER RATING THEN SPECIFIED.

NEVER ATTEMPT TO BYPASS THE

FUSE OR DEFEAT ITS INTENDED

PURPOSE !

Summary of Contents for SE84C+

Page 1: ...Decware High Fidelity Engineering Co 75 S Riverview Dr East Peoria IL 61611 309 822 5255 STEREO POWER AMPLIFIER SE84C OWNERS MANUAL ...

Page 2: ... blades with one wider then the other A grounding type plug has to blades and a third ground ing prong The wide blade or the third grounding prong are provided for your safety If the provided plug does not fit into your outlet consult an electri cian for replacement of the obsolete outlet 11 Protect the power cord from being walked on or pinched particularly at plugs conve nience receptacles and t...

Page 3: ...Date Model Number Technical Assistance You can reach technical assistance by simply contacting Decware directly You can also e mail us directly from our web site at www decware com Please feel free express any questions you may have about your pur chase or how it can be best utilized in your present system You can also find help on line in our support forums on decware com Decware High Fidelity En...

Page 4: ...nc ing is a system wide concept developed for pro audio to reduce noise an facilitate long cable runs of in many cases over 100 feet The speaker binding posts are designed to facili tate the use of bare wire by inserting it in the horizontal hole and tightening the post down onto it They can also accept a spade connector with the same tightening technique In addition there are vertical holes visib...

Page 5: ...he heavy signature and are considerably faster The bandwidth of these tubes is far greater then that specified for audio tubes The SV83 s and the 6P15P EV tubes all came from a single tube factory in Russia and were manufac tured in the 1980 s Decware was introduced to these tubes in 1995 by Svetlana s Eric Barbour who was convinced they would make a nice alternative to the EL84 s Steve Deckert ow...

Page 6: ...oughout the amplifier which is why they can have an effect on the sound You will find that even different brands of the same tube will sound different This is true with any vacuum tube The sound is typically warm with good balance The sound is more airy and detailed less bass The sound is typically more dynamic and detailed POWER SWITCH LEFT INPUT VARIABLE RIGHT INPUT VARIABLE OUTPUT TUBES INPUT T...

Page 7: ...ransformers used in your SE84C We understood from the beginning that output transformer design and quality are what separate good sounding tube amps from great sounding ones The SE84C has transform ers that were custom designed specifically for it and are made by Decware in the USA Gold Plated Connectors and Sockets Gold plated Input Jacks and Output Binding Posts provide trouble free connections ...

Page 8: ... level The amp will generate less heat at lower volumes then at higher volumes Amount of time the amplifier has been on Depending on the two variables above it can take up to several hours to reach full temper ature NOTE in rooms with high ambient tempera tures the SE84C could after many hours reach temperatures of 140 degrees although it requires a worse case scenario to achieve that temperature ...

Page 9: ... that our Y Cable gives the same sonic results as the switch costs about the same and keeps you from having to ship your amplifier back to Decware for the modification That is one of the reasons why a stereo mono switch is not standard on the SE84C HOW TO OPERATE After finding an appropriate place for the am plifier you can install the tubes and connect the speaker cables Do not hook up the in put...

Page 10: ...ication Output tubes SV83 6P15P EV 6n15n EB or EL84 6BQ5 Signal tube 6N1P or 6922 or 6Dj8 Transformers All transformers are custom made for this amplifier by Decware Biasing Self Biasing circuit never needs adjustment Resistors All resistors are precision WW MF by DALE VISHAY Signal Cap Film and Foil Filter Caps All filter caps are US made SPRAGUE ATOM AC cord Fused IEC connector provided with rem...

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