Jeff Rowland M-301, M-304 Brochure

300 SERIES POWER AMPLIFIERS300 S ERIES P OWER AMPLIFIERS

WELCOME ABOARD THE FLAGSHIPS OF JEFF ROWLAND DESIGN GROUP’S FLEET OF PREMIUM QUALITY

AMPLIFIERS, THE 300 SERIES. PREPARE TO BE TRANSPORTED INTO A DIMENSION OF REPRODUCED

REALITY THAT IS UNCOMPROMISING AND UNRIVALED IN THE WORLD OF HIGH-END AUDIO.

THE MULTIPLE CHANNEL CONFIGURATIONS OF THE 300 SERIES ALLOW THEM TO BE USED AS THE

CORNERSTONE OF AN ULTRA-HIGH-END AUDIO SYSTEM OR THE FINEST OF HOME THEATER SYSTEMS. WITH
OUTPUT POWERS BEGINNING AT 250 WATTS PER CHANNEL, THE 300 SERIES AMPLIFIERS ARE ABLE TO DRIVE
ANY LOUDSPEAKER WITH THE CONTROL AND FINESSE REQUIRED TO BRING THE GREATEST DYNAMICS AND
SUBTLEST DETAILS TO LIFE.

TO ADD TO THEIR VERSATILITY, THE 300 SERIES HAS EMPLOYED NEW POWER SUPPLY TECHNOLOGY. THE

300 SERIES POWER SUPPLY INCORPORATES ACTIVE POWER FACTOR CORRECTION CIRCUITRY THAT ASSURES

FULL UTILIZATION OF THE ELECTRICAL SYSTEM. THE POWER SUPPLY ALSO OFFERS EXCEPTIONAL
IMMUNITY FROM ALL SOURCES OF NOISE AND VOLTAGE VARIATIONS. REMOVING THESE LAST LAYERS OF
NOISE ALLOWS YOU TO HEAR EXACTLY WHAT THE ARTIST INTENDED. JEFF ROWLAND DESIGN GROUP HAS
MADE THE AMPS MORE COMPACT, ELECTRICALLY EFFICIENT, AND COOLER-RUNNING THAN THEIR
PREDECESSORS, AND THUS MORE CONDUCIVE TO ENCLOSED CUSTOM INSTALLATION APPLICATIONS. THE

300 SERIES’ ENERGY EFFICIENCY APPROACHES EIGHTY-FIVE PERCENT, WHICH IS UP TO TEN TIMES THE

OPERATING EFFICIENCY OF CONVENTIONAL AMPLIFIERS. BY GREATLY REDUCING UNWANTED HEAT, THE
AMPLIFIERS DO NOT IMPOSE ANY RESTRICTIONS UPON THEIR PHYSICAL PLACEMENT.

INNOVATIVE ICEPOWER POWER CONVERSION TECHNOLOGY INSPIRED THE DEVELOPMENT OF THE 300

TM

SERIES. THESE AMPLIFIERS REPRESENT THE TOP OF THE LINE STATEMENT IN AMPLIFIER DESIGN THAT

EFFECTIVELY RESTATES THE TRADITIONAL RELATIONSHIP BETWEEN POWER AND EFFICIENCY. THEY ALSO
REPRESENT JEFF ROWLAND DESIGN GROUP’S ON-GOING EFFORTS TO REMOVE THE BOUNDARIES BETWEEN
REPRODUCTION AND REALITY.

MODEL 301:

400/850 WATTS
(PARALLEL/SERIES, 8 OHMS)

650/1150 WATTS
(PARALLEL/SERIES, 4 OHMS)

FREQ. RESP.: 10 HZ - 60 kHZ
PEAK CURRENT: >90 AMPS
CMRR: >90 dB, 20 HZ - 20 kHZ
DYNAMIC RANGE: 120dBA
THD+N: TYP. .006% @ 1kHZ
IM DISTORTION: <0.002%

MODEL 302:

300 WATTS PER CHANNEL
(STEREO, 8 OHMS)

500 WATTS PER CHANNEL
(STEREO, 4 OHMS)

FREQ. RESP.: 10 HZ - 60 kHZ
PEAK CURRENT: >45 AMPS
CMRR: >90 dB, 20 HZ - 20 kHZ
DYNAMIC RANGE: 117 dBA
THD+N: TYP. 0.006% @ 1kHZ
IM DISTORTION: <0.002%

MODEL 304:

250 WATTS PER CHANNEL
(4-CHANNELS, 8 OHMS)

450 WATTS PER CHANNEL
(4-CHANNELS, 4 OHMS)

FREQ. RESP.: 10 HZ - 60 kHZ
PEAK CURRENT: >45 AMPS
CMRR: >90 dB, 20 HZ - 20 kHZ
DYNAMIC RANGE: 117 dBA
THD+N: TYP. 0.007% @ 1kHZ
IM DISTORTION: <0.002%

DAMPING FACTOR: 60

10.6”(H) X 15.5” (W) X 18.3” (D)
110 LBS. EACH

DAMPING FACTOR: 275

10.6”(H) X 15.5” (W) X 18.3” (D)
95 LBS. EACH

All specifications subject to change due to improvements in technology and manufacturing.All specifications subject to change due to improvements in technology and manufacturing.

DAMPING FACTOR: 275

10.6”(H) X 15.5” (W) X 18.3” (D)
97 LBS. EACH