Aguilar AG 500SC-112C Combo Folleto y especificaciones - Página 2

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price. I checked out the AG 500 dual-channel head and

the AG 500SC-112C, a single-channel head in a 1x12

combo.

D E S I G N & C O N S T R U C T I O N

In terms of construction, the only difference between

the standalone and combo-based heads is six top-posi-

tioned hex screws that hold the combo's head in the

cabinet; a couple minutes with an allen wrench and it's

possible to slide out the combo head and use it on its

own. The chassis is a solid welded box with a separate

top plate, resulting in much more rigid construction

than chassis designs that have two perpendicularly

opposed U-shaped panels. The amp's internal layout is

excellent. A beefy toroidal transformer supplies ample

power to all components, as well as the bulk of the head's

The conventional class AB power amplifier is a tried-and-true design, but one that operates relatively inefficiently, producing enough

excess heat to require noisy fans and large heat sinks, which add to an amplifier's bulk. Class D amps are far more efficient. They

produce power by switching transistors on and off at a high frequency using a process called Pulse Width Modulation. The AG 500 is

like a Class D amp, but it utilizes switching technology developed by the Tripath Corporation. The Tripath power amp topology, named

Class T, modulates the output using a proprietary module that purports to eliminate some of the weaknesses of Class D amps while

maintaining the efficiency that's a hallmark of the technology. Aguilar's AG 500 uses a Class T output stage and a conventional linear

power transformer.

weight. Also under the hood are four huge power-sup-

ply capacitors, which provide a substantial power reser-

voir for enhanced dynamic punch and impact.

In addition to its light weight, and quiet, fan-free

operation, the AG 500 offers several gigging-pro fea-

tures, like reliability-enhancing protection modes, a full-

featured DI, a side-mounted carrying handle, and a

front-panel effects loop and footswitch jack. I did wish

the head had feet on the side opposite the carry handle,

as I tended to set it down on its side when loading. The

AG 500SC-112C combo is essentially the company's

easy-tote GS 112 cabinet with an AG 500 head tacked

on. But the short-depth head and added height make

the cubular combo awkwardly front-heavy and cum-

bersome. The combo doesn't accommodate casters, so

I used a dolly to roll into a rehearsal space, but that

TECH SPECS

AG 500 & AG 500SC

HEADS

Power rating 500 watts

into 4Ω minimum

RMS

load

Front panel jacks q"

input with –10dB input

pad, effects send, effects

return, footswitch, D.I.

Back Panel jacks Two

Speakon speaker out-

puts, two q" speaker

outputs, q" tuner out-

put

Tone Controls Channel 1

(+5dB@4kHz

BRIGHT

shelving),

TREBLE

(±13db@4kHz shelving),

(±14db@800Hz

HIGH MID

peaking),

LOW MID

(±14db@400Hz peak-

ing),

(±18db@40Hz

BASS

shelving),

DEEP

(+6db@100Hz shelving)

Tone Controls Channel 2

(AG 500 dual-channel

only)

(broad

CONTOUR

range mid scoop@1kHz

(clockwise flat, counter-

clockwise approx. 20dB),

(+6dB/–10db@

TREBLE

4kHz shelving),

(+4db/–10db@

MID

600Hz peaking),

(+8dB/–6db@

BASS

40Hz shelving),

(+6db@

DEEP

100Hz shelving),

(+6db/–20db@

PRESENCE

4kHz shelving)

Other controls

EFFECTS SEND

level with push-pull

series/parallel,

EFFECTS

level with push-

RETURN

pull for instrument

level/line level, D.I.

, D.I.

PRE

POST

GROUND LIFT

Other models Aguilar AG

500SC single-channel

head (list price $1,295;

approx. street price

$970), Aguilar AG 500-

112C dual-channel

combo (list price $2,195;

approx. street price

$1,649), Aguilar GS 112

NT tweeterless extension

cabinet (list price $479;

approx. street price

$359)

B A S S P L A Y E R

M A R C H 2 0 0 5