AKG Acoustics SOLID TUBE User Manual

SOLIDTUBE

Tube Condenser Microphone

Description

The AKG Model Solidtube is a large diaphragm condenser
microphone that benefits from the combination of modern
solid-state technology and vacuum tube driven circuitry. The
microphone, released in 1997, AKG’s Jubilee year, provides
the characterisitc warmth and generous margin of overload
expected from classic tube powered designs. Solid state
electronics within the N-Solid power supply ensure quiet and
reliable operation.

The Solidtube has a large double screened housing that
reacts minimally with the capsule and provides shielding from
RF interference. Frequency response remains relatively flat
within the range of ±2 dB. The mid-range cut at
approximately 2 kHz and presence rise above 10 kHz are
signature characteristics of AKG large diaphragm condenser
mics dating back to the classic C 12. They provide depth and
clarity to any recording. Mid-band pattern rejection at 180

0

is

in excess of 20 dB.

The microphone is response tailored for solo vocal and
instrumental pickup in the studio, and as such, has only a
dedicated cardioid pattern. The Solidtube is shipped with all
necessary cabling, an isolation shock mount, windscreen and
a custom aluminum flight case.

Features

• Dedicated cardioid pattern with
response tailored to solo vocals
and instrumentals in the modern
studio

• Wide dynamic range of 110 dB in
the studio

• Integral 20-dB pre-attenuation
switch

• Low frequency cut at 100 Hz

• Includes aluminum flight case, with
all necessary cabeling, shock
mount and windscreen

Specifications

SOLIDTUBE Microphone:

Transducer type: 1 in. (25 mm) diaphragm

pressure gradient

Diaphragm material: Gold-sputtered mylar foil

Tube type: ECC 83 (12AX7)

Frequency response: 20 Hz - 20 kHz

Polar pattern: Cardioid

Impedance: 200 ohms ±25%

Recommended load impedance: greater than 600 ohms

Sensitivity at 1 kHz: 20 mV/Pa; -34 dB (dB re 1 V)

Equivalent noise level (A-weighted): 20 dB-A (DIN 45412)

Sound pressure level for 3% THD: 130 dB (145 dB SPL with -

20 dB pre-attenuation)

Dynamic Range: 110 dB

S/N ratio re 1 Pa (A-weighted): 74 dB

Pre-attenuation switch: -20 dB

Low frequency roll-off: 12 dB/octave below 100 Hz

Current consumption: less than 2 mA

Microphone size: 2.5” (63.5 mm) diameter;

8.6” (219 mm) length

Microphone net weight: 2 lb. (0.92 kg)

Microphones · Headphones · Wireless Microphones · Wireless Headphones · Headsets · Electroacoustical Components

Limited Warranty

Valid only in the United States. AKG Acoustics warrants AKG products against defects in material
or workmanship for a period of three years from the date of original purchase for use, and agrees
to repair or, at our option, replace any defective unit without charge for either parts or labor.
Important: This warranty does not cover damage resulting from accident, misuse or abuse, lack of
reasonable care, the affixing of any attachment not provided with the product, loss of parts or
connecting the product to any but the specified receptacles. This warranty is void unless service
or repairs are performed by an authorized service center. No responsibility is assumed for any

special, incidental or consequential damages. However, the limitation of any right or remedy shall
not be effective where such is prohibited or restricted by law. Simply take or ship your AKG product
prepaid to our service department. Be sure to include your sales slip as proof of purchase date.
(We will not repair transit damage under the no-charge terms of this warranty.) Note: No other
warranty, written or oral is authorized by AKG Acoustics, Inc. This warranty gives you specific legal
rights, and you may also have other rights which vary from state to state. Some states do not allow
the exclusion or limitation of incidental or consequential damages or limitation on how long an
implied warranty lasts, so the above exclusions and limitation may not apply to you.

Specifications subject to change without notice.

AKG Acoustics GmbH

Lemböckgasse 21–25, P.O.B. 158, A-1230
Vienna/AUSTRIA
Tel: [phone]*, Fax: [phone]
Internet: http://www.akg.com

AKG Acoustics; A Division of Harman Pro Germany
Bodenseestraße 228, D-81243 München/GERMANY
Tel: [phone], Fax: [phone]

Arbiter Pro Audio

Wilberforce Road, London NW9 6AX/ENGLAND
Tel: [phone], Fax: [phone]

AKG ACOUSTICS, U.S.

914 Airpark Center Drive
Nashville, TN 37217, U.S.A.
Tel: [phone], Fax: [phone]

Studer Japan Ltd.

2-43-7, Uehara, Shibuya-ku, Tokyo 151-0064/JAPAN
Tel: [phone], Fax: [phone]

Erikson Pro Audio

620 McCaffrey, St-Laurent, Quebec, H4T 1N1, CANADA
Tel: [phone], Fax: [phone]
Internet: www.jam-ind.com/eriksonpro

AKG is constantly improving and modifying its products, therefore,

specifications are subject to change without notice.

DS-SOLIDTUBE

The microphone shall be a 1 inch tube type condenser with a
dedicated cardioid pattern. The diaphragm material shall be gold­sputtered mylar foil, and the on-axis sensitivity shall be no less
than 20 mV/Pa. The inherent noise floor of the microphone shall be
no greater than 20 dB (A-weighted), and the operating sound field
for 3% THD shall be no less than 130 dB. The microphone size
shall be no greater than 2.5 inches in diameter and 8.62 inches in

length, and the microphone net weight shall be no greater than

2.02 pounds. The microphone shall be powered by an external
power supply. Facilities for low cut, 12 dB/octave at 100 Hz, and
pre-attenuation of 20 dB shall be included. An aluminum flight
case, all cabling, isolation shock mount, and windscreen shall be
included as standard accessories.The microphone shall be the
AKG Acoustics Model SOLIDTUBE.

Graphical Data

Architects and Engineers Specifications

Specifications contd.

SOLIDTUBE Power Supply:

Power requirements: 115/230 Vac

Current consumption: 40 mA @ 230 Vac, 80 mA @ 115 Vac

Fuse size/type: Type TO, 1 A slow blow, (5 x 20 mm)

Power supply dimensions: 9” x 2.8” x 5.9” (W x H x D),

(228 x 70 x 150 mm)

Power supply weight: 3.2 lb. (1.5 kg)

Microphone connector: 6 pin XLR

Output connector: 3 pin XLR

LF cut: 12 dB/octave, 100 Hz

Ground lift: isolates signal ground from

chassis ground

SOLIDTUBE system shipping weight: 11 lb. (5.0 kg)

Included accessories: N-SOLIDTUBE power supply unit

H-SOLID elastic shock mount suspension
MK-SOLID power supply cable 30 ft. (10 m)
W-SOLID foam wind/pop screen
Power cables (European and North
American) Custom flight case

Cardioid