The NuForce Reference 18 Mono Amplifier Music lovers have long esteemed NuForce's award-winning amps for the clarity they bring to the source. Those qualities that set NuForce amps apart -- superior resolution, transparency, dynamic finesse, harmonic integrity, and the projection of a precise, well detailed soundstage -- have advanced incrementally to our proudest accomplishment, the Ref 18. A recent proprietary development, the Cross-Matrix Array (CMA) capacitor board, along with a number of ancillary refinements, combine to produce an amp we’d not hesitate to compare with anything out there. A delicate tap on a glockenspiel ? a sound so lifelike that it seems to occur in the listening room ? will of course demonstrate an amp’s ability to deliver lightning-swift transients. Less obvious, perhaps, is the harmonic and textural wealth ? in a word, the musical truth ? swift, meticulous power delivers. Subtleties suddenly spring to life. A panoramic, rock-steady soundstage, a richly engaging, all-embracing midrange, sweet, airborne highs, tight, extended lows, high-volume playing that simply will not congeal: if it’s there in the music, it’s yours to enjoy. The Ref 18 takes ultra-high-end sound to a place that belies the amp’s real-world price. The Ref 18's every aspect has been evaluated against those of the Ref 9V3SE in order to identify areas available to improvement. Input-stage circuitry, solid-state and passive components have been reconfigured with an eye to providing a quieter, more distortion-free environment, and greater speed via the Cross-Matrix Array (CMA) capacitor board, the effectiveness of which becomes especially apparent in the supremely fast delivery of musical transients (read more about Nuforce Capacitor Array Technology) Owing to the CMA's larger size relative to the Ref 9V3SE's Sequential Linear Array, the Ref 18 occupies a commensurately wider chassis that likewise allows for a more effective routing of internal wiring, resulting in a reduction of background noise. In addition to the Ref 18's performance gains, the amp features a touch-sensitive front panel, WBT binding posts and a 12-volt On-Off trigger permitting it to operate as the cornerstone of any premium installation, be it two-channel, home theater, and other domestic or commercial application. As always, in keeping with NuForce policy, customer access to upgrades offers an assurance of non-obsolesce. Advances in technology and circuit architecture will remain available for the new Ref 18 platform, as well as for that of our Ref 9 designs -- and again, as always, at a reasonable cost. In summary, NuForce's Ref 18 elevates the already excellent performance characteristics of the Ref 9V3SE -- most notably, liquidity and neutrality -- to a degree that must be heard to be believed. As with the Ref 9V3SE, operation in a less than well resolved and transparent system may mask the Ref 18's advantages. Conversely, a pair of Ref 18s in a fine, audiophile-grade system will reveal the following qualities: • Sweeter, more natural highs. • A near-palpable midrange and harmonic structure, resulting in a more natural and relaxed presentation. • A beautifully textured low end exceeding even that of the Ref 9V3SE's exemplary authority and control. • A deeper, more coherent soundstage. In short, the answer to a discriminating audiophile's prayers.

Specifications •

Configuration: Mono Input: RCA and true balance XLR.

Power output:

8 ohm 175W RMS. Peak 325 W.

4 ohm 335 W RMS. Peak 650 W.

2 ohm 335 WRMS. Peak 1300 W.

*RMS power denotes maximum continuous power.

Peak power denotes an instantaneous power boost.

Note that typical listening normally requires about 15W of power.

These high power amplifiers provide more than sufficient power for just about any speakers on the market.

• Frequency Response: 20 Hz -0.3 dB - 120 kHz -3 dB • THD+N = 0.01%, 1kHz, 1W to 10W, A Weighted.

• Input impedance: 22K ohm • Input sensitivity = 252mV, 1W @ 8 Ohm; 2.57V, 100W @ 8 Ohm; 1.81V, 100W @ 4 Ohm

• Input sensitivity for maximum power: 3.33V

• Gain: 21 db • SNR > 100 db at 100W

• 12V DC Trigger Input

• WBT binding post for spade and banana plug

• Chassis is made of high-grade anodized brushed aluminum to reduce audio resonance • Dimension: 17"x 15" x 2.95"

• Worldwide AC voltage (84VAC to 264VAC). No need for AC regulator if the AC voltage falls within the specified range.

• Weight: 16 pounds • AC Fuse: Slow blow, 5A, 250VAC

Anmeldelser:

www.lydogbilde.no/test/nuforce-reference-18

www.6moons.com/audioreviews/nuforce15/1.html

stereotimes.com/amp100610.shtml

www.soundstagehifi.com/index.php

The Ref 9 V3, our standard Reference Series mono amp, is available in a black or silver finish. The Ref 9 V3SE utilizes an improved power capacitor board (Nuforce proprietary Sequential Linear Array design) featuring Nuforce's proprietary low ESR capacitor matrix and high performance capacitors. The Ref 9 V3SE comes in black or silver finish. The Ref 9 V3SE adds refinement and delicacy to the already excellent-sounding Ref 9 V3. When used in less than the most revealing systems, the SE's advantages may not be fully realized. As excellent as the Ref 9 V3 is, the Ref 9 V3SE takes its strengths to an even higher level. These include: • Sweeter highs, without any compromise in frequency extension. • A smoother and more palpable midrange, while preserving the natural harmonic structure for which the Ref 9 V3 is famous. The Ref 9 V3SE is one of the few amplifiers in the world that does not impart a signature on the music. This results in a more natural and relaxed presentation. • The bass remains the amp's huge strength. The Ref 9 V3SE has same tightness and texture of the standard Ref 9 V3, but with a little more weight. • The stage is more coherent and deeper. In summary, the SE's sound is more neutral and liquid, with a more relaxed yet powerful soundstage presentation.

Specifications •

Configuration: Mono Input: RCA and true balance XLR

Specifications:

• Configuration: Mono Input: RCA and true balance XLR.

Power output:

8 ohm 175W RMS. Peak 325 W.

4 ohm 335 W RMS. Peak 650 W.

2 ohm 335 WRMS. Peak 1300 W.

*RMS power denotes maximum continuous power.

Peak power denotes an instantaneous power boost.

Note that typical listening normally requires about 15W of power.

These high power amplifiers provide more than sufficient power for just about any speakers on the market.

• Frequency Response: 20 Hz -0.3 dB - 120 kHz -3 dB

• THD+N = 0.01%, 1kHz, 1W to 10W, A Weighted.

• Input impedance: 22K ohm

• Input sensitivity = 252mV, 1W @ 8 Ohm; 2.57V, 100W @ 8 Ohm; 1.81V, 100W @ 4 Ohm

• Input sensitivity for maximum power: 3.33V • Gain: 21 db

•SNR > 100 db at 100W • Eichmann Cable Pod binding post for spade and banana plug (the plastic cap at the end of the binding post can be removed for connecting a banana plug)

• Chassis is made of high-grade anodized brushed aluminum to reduce audio resonance

• Dimension: 8.5" x 14" x 1.8" (height does not include feet)

• Worldwide AC voltage (84VAC to 264VAC). No need for AC regulator if the AC voltage falls within the specified range.

• Weight: 9 lbs

• AC Fuse: Slow blow, 5A, 250VAC

Anmeldelser:

http://www.6moons.com/audioreviews/nuforce12/v3.html

hometheaterreview.com/nuforce-reference-9-v3-special-edition/

The Ref 9 V3, our standard Reference Series mono amp, is available in a black or silver finish. The Ref 9 V3SE utilizes an improved power capacitor board (Nuforce proprietary Sequential Linear Array design) featuring Nuforce's proprietary low ESR capacitor matrix and high performance capacitors. The Ref 9 V3SE comes in black or silver finish. The Ref 9 V3SE adds refinement and delicacy to the already excellent-sounding Ref 9 V3. When used in less than the most revealing systems, the SE's advantages may not be fully realized. As excellent as the Ref 9 V3 is, the Ref 9 V3SE takes its strengths to an even higher level. These include: • Sweeter highs, without any compromise in frequency extension. • A smoother and more palpable midrange, while preserving the natural harmonic structure for which the Ref 9 V3 is famous. The Ref 9 V3SE is one of the few amplifiers in the world that does not impart a signature on the music. This results in a more natural and relaxed presentation. • The bass remains the amp's huge strength. The Ref 9 V3SE has same tightness and texture of the standard Ref 9 V3, but with a little more weight. • The stage is more coherent and deeper. In summary, the SE's sound is more neutral and liquid, with a more relaxed yet powerful soundstage presentation.

Specifications

• Configuration: Mono Input: RCA and true balance XLR

Power output:

8 ohm 175W RMS. Peak 325 W.

4 ohm 335 W RMS. Peak 650 W.

2 ohm 335 WRMS. Peak 1300 W.

*RMS power denotes maximum continuous power.

Peak power denotes an instantaneous power boost.

Note that typical listening normally requires about 15W of power.

These high power amplifiers provide more than sufficient power for just about any speakers on the market.

• Frequency Response: 20 Hz -0.3 dB - 120 kHz -3 dB

• THD+N = 0.01%, 1kHz, 1W to 10W, A Weighted.

• Input impedance: 22K ohm • Input sensitivity = 252mV, 1W @ 8 Ohm; 2.57V, 100W @ 8 Ohm; 1.81V, 100W @ 4 Ohm

• Input sensitivity for maximum power: 3.33V • Gain: 21 db

• SNR > 100 db at 100W

• Eichmann Cable Pod binding post for spade and banana plug (the plastic cap at the end of the binding post can be removed for connecting a banana plug)

• Chassis is made of high-grade anodized brushed aluminum to reduce audio resonance

• Dimension: 8.5" x 14" x 1.8" (height does not include feet)

• Worldwide AC voltage (84VAC to 264VAC). No need for AC regulator if the AC voltage falls within the specified range.

• Weight: 9 lbs

• AC Fuse: Slow blow, 5A, 250VAC

Stereo Amplifier The NuForce Reference Series stereo amplifiers are designed for both high-performance stereo and home-theater use. They can be used for bi-amping, tri-amping and home-theater mixing-and-matching when used with NuForce AVP (Audio-Video Processor) products. The Reference Series stereo amplifiers are standardized on a platform consisting of amplifier, power-supply and capacitor modules, any of which can be upgraded when new technology becomes available. Advancements in technology will never render NuForce stereo amps obsolete. NuForce stereo amplifiers come with a three-year warranty. Stereo 8.5 V3 Utilizing the same V3 circuit board as our celebrated mono amps, the Stereo 8.5 V3 is the most powerful and compact stereo amplifier on the market. Among the 8.5 V3's features is a half-size Ref 9V3SE capacitor board for near-SE level performance. Available in black or silver finish.

Specifications

• Configuration: Mono Input: RCA

• Power output:

8 ohm 150 W RMS. Peak 288 W.

4 ohm 200 W RMS. Peak 576 W.

2 ohm 200 W RMS. Peak 1125 W.

*RMS power denotes maximum continuous power.

Peak power denotes an instantaneous power boost.

Note that typical listening normally requires about 15W of power.

• Frequency Response: 20 Hz -0.3dB to 120 kHz -3dB • THD+N = 0.01%, 1kHz, 1W to 10W, A Weighted

• Input impedance: 22K ohm

• Input sensitivity = 2.57V, 100W @ 8 Ohm; 1.81V, 100W @ 4 Ohm

• Gain: 21 db • SNR > 100 db at 100W

• 12V DC Trigger Input • Eichmann Cable Pod binding post for spade and banana plug (the plastic cap at the end of the binding post can be removed for connecting a banana plug)

• Chassis is made of high-grade anodized brushed aluminum to reduce audio resonance

• Dimension: 8.5" x 14" x 1.8" (height does not include feet)

• Worldwide AC voltage (84VAC to 264VAC). No need for AC regulator if the AC voltage falls within the specified range.

• Weight: 9 l

Specifications.

Power Rating 75 watts of pure class A power.

85 watts peak into 8 ohms.

161 watts peak into 4 ohms.

Frequency response 0.2 to 100,000 Hz.

Distortion THD and IM less than 0.01% rated power.

Damping factor over 5000 into 8 ohms.

Peak Current 80 amperes.

Input Sensitivity 1.17 for 75 watts.

Input Impedance 50,000 ohms unbalanced and 100,000 ohms.

CT balanced Hum and Noise over 100 dB.

Gain 21 voltage ratio or 26.44 .dB.

Inputs 1 unbalanced RCA connector or 1 XLR balanced connector.

Dimensions 17" W x 10.5" H x 13.5" D.

Shipping Weight 75 lbs.

Power Rating 120 VAC, 8A fuse (240 VAC 5.0A fuse optional).

Specifications:

Power.........................500W rms into 8 ohms Power.........................900W rms into 4 ohms Distortion...................THD and IM < 0.005% Damping Factor................................> 5000 Peak Current...............................100+ amps Input Imped ...............................100K ohms Freq Response....................0.2Hz to 200khz Size....................432mm x 290mm x 330mm Weight.........................35 Kg each

Specifications:

Power............................200W rms into 8 ohms Power............................400W rms into 4 ohms Distortion......................THD and IM < 0.005% Damping Factor.....................................> 3000 Peak Current.........................................64 amps Input Imped......................................100K ohms Freq Response.......................0.2Hz to 125k Hz Size.......................432mm x 88.9mm x 330mm Weight.................................................15.9 Kg eac

Specifications.

Power..100w rms into 8 ohms

Power..200w rms into 4 ohms

Freq Response .0.2 Hz to 125KHz +/- 3 dB

Damping factor..>2000

Output current..32amps

Input Sensitivity..1.35 volts for R/P

Hun and noise..>100Db

(A weighted) Distortion..>.005% @ 8 ohms

Inputs..Unbalanced only

Shipping Weight..22 Kg each.

Size..432mm x 133mm x 342mm.

Specifications.

Power..................30 Watts of pure Class 'A'

Freq Response .0.2 Hz to 125KHz +/- 3 dB

Damping factor.................................>5000

Output current................................32amps

Input Sensitivity...............0.74V rated power

Hun and noise..............>100DB (A weighted)

Distortion.........................>001% @ 8 ohms

Inputs................................Unbalanced only

Shipping Weight..........................22 Kg each.

Size..................432mm x 133mm x 342mm.

Anmeldelse: www.soundstage.com/equipment/belles_sa30.htm

Specifications.

Power 250 watts per channel — 8 ohms

500 watts per channel — 4 ohms

1000 watts per channel — 8 ohms (monobloc)

Distortion Rated THD and IM less than 0.01% rated power

Damping Factor over 2000

Peak Current 64 amperes

Inputs Unbalanced stereo Balanced only for monoblock

Input Sensitivity 1.98 volts of rated power

Input Impedance 50,000 ohms

Hum and Noise over 100 dB Crosstalk over 60 dB

Frequency Response 0.2 to 100,000 Hz

Dimensions 432mm W x 133mm H x 420mm D

Shipping Weight 30 Kg

Power Rating 240 VAC

Specifications

Power 125 watts per channel at 8 ohms

250 watts per channel at 4 ohms

500 Watts per channel 8 ohms, monobloc configuration

Distortion Rated THD and IM less than 0.1% rated power

Damping Factor over 1000

Peak Current over 30 amperes

Input Sensitivity 1.40 volts of rated power

Input Impedance 100,000 ohms

Hum and Noise over 100 dB

A weighted Crosstalk over 60 dB

Frequency Response 0.2 to 100,000 Hz

Dimensions 432mm W x 133mm H x 330mm D

Shipping Weight 22 Kg's

Power Rating 240 VAC @ 50hz

Specifications.

65W (Rms) per channel @ 8 ohms

Damping factor over 500

Current delivery >16 amps

12 volt turn-on trigger

High quality components

Size 305mm W x 216mm x D 90mm H