Mesa/Boogie Rectifier Stereo owner manual Speaker Impedance Matching & HOOK-UP Guide

Page 18

SPEAKER IMPEDANCE MATCHING & HOOK-UP GUIDE: (Continued)

PARALLEL: When wiring in parallel, the resistance of the speakers decreases. Two 8 Ohm speakers wired in ( hooked-up ) Parallel results in a 4 Ohm load. ItÕs easy to calculate the effect of a resistive load when all the speakers are all the same resistance. It is really not suggested to wire different resistive load values in Parallel ( 8 and 4, 16 and 8 etc. ) The formula for figuring the total impedance in Parallel is the multiplication of the two loads divided by the sum of the two loads - i.e. putting two 8 Ohm speakers in Parallel results in a 4 O hm load. Connect the Positive side of Speaker A to the Positive side of Speaker B - Connect the Negative side of Speaker A to the Negative side of Speaker B.

Speaker A

8 Ohms

 

 

 

S

 

 

 

K

H

 

 

C

Made by

 

 

A

 

 

 

D

 

Electro-Voice

O

L

 

 

 

 

W

B

 

 

 

 

 

 

 

 

 

Total Load = 4 Ohms

Speaker B

8 Ohms

 

 

 

S

 

 

 

K

H

 

 

C

Made by

 

 

A

 

 

 

D

 

Electro-Voice

O

L

 

 

 

 

W

B

 

 

 

 

 

 

 

 

 

NEGATIVE

POSITIVE

COMBINATION OF SERIES & PARALLEL:

All 4 Spkrs.are 8 Ohms

SPEAKER A

SPEAKER B

 

 

 

S

 

 

 

K

H

D

C

 

 

C

Made by

 

 

A

 

O

L

L

 

Electro-Voice

A

 

 

 

W

B

B

 

 

 

 

 

 

 

 

 

SPEAKER C

SPEAKER D

This is really just two sets of Parallel wired speakers connected in series. This is how you maintain a consistent load with multiple speakers. The importance of this is more evident when you have more than one cabinet to connect to your amplifier. This is when you need to figure out the loads and how to wire them up without applying too low of a resistance on the amplifier.

S

 

H

 

A

 

Made by

 

D

 

Electro-Voice

Simply connect the Positive side of Speaker A to the Posi-

O

W

tive side of Speaker C.

 

Connect the Negative side of Speaker A to the Positive side of Speaker B, then on to the Positive side of Speaker D and finally on to the Negative side of Speaker C.

And lastly, connect the Negative side of Speaker B to the

Negative side of Speaker D.

 

S

 

K

H

 

A

Made by

D

Electro-Voice

 

 

O

 

 

W

 

 

S

 

 

K

H

 

C

 

 

A

Made by

D

L

Electro-Voice

 

 

 

B

 

 

 

4 Eight (8) Ohm speakers wired in Series Parallel + a Total Load of 8 Ohms.

POSITIVE

 

 

 

NEGATIVE

 

 

 

 

 

 

PAGE 14

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Contents Mesa Boogie Hello from the Tone Farm Table of Contents Precautions & Warnings Operating Instructions Them when you need to cut through a Òloud mix.Ó Front Panel ControlsFront Panel Controls ReducedRear Panel Features Same way the EL34’s doRear Panel Types of ground loops areTroublesome power tubes Necessary from time to time for noise problems Your nearest MESA/Boogie Pro CenterPage Page Bias Adjustment part of a continuing series Page Cheers Randall Smith Designer & President Speaker Impedance Matching & HOOK-UP Guide Speaker Impedance Matching & HOOK-UP Guide Wiring SCHEMES...Amplifier to Speaker Cabinets Wiring SCHEMES...Amplifier to Speaker Cabinets Wiring SCHEMES...Amplifier to Speaker Cabinets Wiring SCHEMES...Amplifier to Speaker Cabinets ALL Tube Stereo Power Amplifier Suggested Wiring #2 On TRIODES, Pentodes & Irishmen On TRIODES, Pentodes & Irishmen On TRIODES, Pentodes & Irishmen Mesa Boogie Spirit of Art in Technology

Rectifier Stereo specifications

The Mesa/Boogie Rectifier Stereo is a celebrated product in the realm of high-performance guitar amplification. Designed to cater to the demands of both live performance and studio recording, the Rectifier Stereo stands out due to its versatility, powerful tone, and advanced technology.

This amplifier features a dual-channel design that allows guitarists to seamlessly switch between two distinct tonal profiles. The clean channel delivers pristine, bell-like tones that are ideal for jazz and pop, while the high-gain channel unleashes a ferocious, saturated sound that caters to genres such as rock and metal. This flexibility is further enhanced by the inclusion of three distinctive modes for each channel, offering players a wide array of tonal possibilities.

One of the signature technologies of the Rectifier Stereo is its Multi-Watt power switch feature. This innovative design allows players to choose between different wattage configurations—50 or 100 watts—enabling them to dial in the perfect amount of power for any performance setting. Whether you are playing in a small club or a large arena, the amplifier can be configured to deliver optimal headroom or saturation.

The Rectifier Stereo also incorporates the iconic Rectifier sound, characterized by its smooth, compressed lead tones and tight bottom end. Electronic components like the patented "Dyna-Watt" technology improve power delivery and tonal response, ultimate clarity making it suitable for intricate guitar work, while an intuitive EQ section provides precise control over the tonal spectrum.

The amplifier is built with rugged construction, featuring high-quality transformers and heavy-duty casters, ensuring durability on the road. The sleek aesthetic design makes it not only a functional tool but also a visually appealing addition to any guitarist’s arsenal.

One notable feature is its built-in effects loop, providing an easy way to integrate pedals and outboard gear into your sound without compromising tone. Furthermore, the addition of a MIDI interface opens up a world of control options for performing guitarists, allowing them to program presets and switch channels with ease.

In summary, the Mesa/Boogie Rectifier Stereo is a remarkable amplifier that blends vintage warmth with modern technology. Its diverse tonal capabilities, robust construction, and innovative features make it a go-to choice for professional musicians who demand the best in performance and sound quality. Whether you’re a studio recording artist or a touring musician, the Rectifier Stereo stands ready to deliver outstanding results for any musical endeavor.