Altec lansing 6125A User Manual

6125A

6-Channel Power Amplifier

FEATURES –

• 150W per Channel @ 8 ohms

• 250W per Channel @ 4 ohms

• 500W with Two Channels Bridged @ 8 ohms

• Switchable HP Filter on Each Input

• Euroblock Input Connectors

• Output Terminal Block

GENERAL PRODUCT DESCRIPTION

Altec Lansing’s 6125A 6-channel power amplifier is a professional, high quality solution for your permanent install needs. The 6125A features six highly efficient, independent, high-speed switched MosFet power amplifiers in one compact package.

Each input has a Euroblock connector located on the back panel. Detented attenuators on the back panel offer added security as well as repeatable settings. System integrators and consultants will appreciate the Euroblock input connectors. Euroblock connectors allow bare wire to be easily connected to the amplifier without expensive connectors and soldering. All channel inputs are electronically balanced. For low frequency protection, each pair of inputs has a selectable 12dB/octave high-pass filter at 50Hz. Mono/Stereo and Dual/Bridge select switches are safely out of sight on the back panel.

Individual channel LED’s are on the front panel for Protect, Thermal Overload, Clip, and Signal Presence. The AC power switch is also on the front panel.

Each channel can deliver 150W into 8 ohms, 250W into 4 ohms, and channels 1-2 or 3-4 or 5-6 can be bridged into 8 ohms to deliver 500W. The 6125A outputs are stable into complex loads, including pure capacitors and inductors, and can easily drive loads involving 25, 50, 70.7 or 100V transformers.

Cooling is of paramount importance to a professional power amplifier. The 6125A has a temperature sensitive 3-speed fan that draws air from the front and exits out the back. An internal 120VAC power supply is fused at 12A and can be selected for 220VAC. Use an 10A fuse for 220VAC operation.

Altec Lansing’s 6125A multi-channel power amplifier delivers six channels of 250W stable audio power. The 6125A can satisfy your most demanding applications. It can drive 70V transformers, floor monitors, and mains speakers, all at the same time.

THE ALTEC LANSING DIFFERENCE

GENERAL SPECIFICATIONS

POWER OUTPUT: *

(maximum average power, 0.1% THD, 1kHz)

Rated Per Channel, All Channels Driven

4 ohm: 250 Watts RMS¥ / 8 ohm: 150 Watts RMS

Mono Bridged (2 channels) 8 ohm: 500 Watts RMS

INPUT IMPEDANCE:

10k ohm balanced, 37k ohm unbalanced

HIGH PASS FILTER: 50Hz, 12dB/octave

TOTAL HARMONIC DISTORTION: **

<0.2% @ 8 ohms . . . 20Hz – 20kHz

IMD (throughout power range)

SMPTE 60Hz/7kHz 4:1 ** . . . <0.1% @ 8 ohms

IHF @ 8 ohms . . . 0.1% @ 8 ohms

HUM & NOISE: ** -100dB from full output (A-weighted)

FULL POWER INPUT SENSITIVITY:

1.08V RMS (2.88dBu)

FREQUENCY RESPONSE

8 ohm . . . +

4 ohm . . . +

Voltage Gain . . . 32X (30.1dB)

CROSSTALK: <-80dB . . . 20 Hz – 1kHz

SIGNAL PRESENT SENSITIVITY: 13V RMS (-35.5dBu)

POWER REQUIREMENT: switch selected

50/60Hz @ 110 – 125VAC or 220 – 250VAC,

Typ. Idle Current . . . 0.81A @ 120VAC (0.42A @ 220VAC)

Current with Typical Audio Program Material . . .

12.0A @ 120VAC (6A @ 220VAC)

(4 ohm load x 4 channels)

CONNECTIONS

Inputs . . . Euroblock / Outputs . . . Terminal Strip

DIMENSIONS

19”W x 5.25”H x 16.5”D (48.3cm x 13.3cm x 41.9cm)

WEIGHT

45lbs (20.4kg) . . . net weight

* Continuous power limited by power line capacity

0.5dB 20Hz – 20kHz

1.5dB 20Hz – 20kHz

** Non-conventional amplifiers measured for THD

and noise with limited bandwidth

Signal peaks in audio programming may trigger protection

circuitry at low line voltages. Specifications are subject to change or improvement without notice

6125A Revision 01

Phone: 1.405.848.3108 y Fax: 1.405.848.3217 y Email: proinfo@alteclansing.com

Rear Panel View

ARCHITECT’S AND ENGINEER’S SPECIFICATIONS

The power amplifier shall be a multi-channel unit with six independent channels. Each amplifier channel shall be able to deliver 150 watts into 8 ohms or 250 watts into 4 ohms. In addition, channel 1+2, channel 3+4, or channel 5+6 shall bridge into 8 ohms to deliver 500 watts.

Each amplifier channel shall have a gain of 30dB, an input sensitivity of 1.05VAC RMS at full-rated output and be stable into any load, including pure capacitors and inductors. The power amplifier shall have six detented attenuators, one for each channel. Each pair of channels shall have a switched high-pass 50Hz filter, stereo or mono mode, and dual or bridged mode.

The inputs shall be active balanced with an input impedance 10k ohm from a single Euroblock connector. All six amplifier outputs shall be accessed by simple and reliable terminal strip connectors. Each amplifier channel shall have front panel LED indicators for protect, thermal overload, clip, and signal presence. A temperature sensitive 3-speed cooling fan shall draw air through the front panel and exit the back.

The power amplifier shall be no higher than three rack spaces and must be fully covered with a five year warranty. The dimensions shall be 19 inches (48.3cm) wide by 5.25 inches (13.3cm) high by 16.5 inches (41.9cm) deep. The power amplifier shall weigh 45 pounds (20.4 kg).

The power amplifier shall be the Altec Lansing Professional model 6125A

As we are continually striving to improve Altec Lansing products, specifications are subject to change without notice.

Mixer

Foyer (L+C+R)

CD912-8 A

L R

Center

150W

Left - Center - Right

4048A

1234

Bridge d

500W

(L+R)

6125A

150W150W 125W125W

CD912-8 A

VISIT WWW.ALTECPRO.COM

• Specification sheets in .pdf format. Download page 1 of the specification sheet for you submittals.

• One paragraph A&E Specifications in .doc format

6125A Revision 01

FOR

Phone: 1.405.848.3108 y Fax: 1.405.848.3217 y Email: proinfo@alteclansing.com