Specifications.

Inputs: 1 XLR, 5 RCA.

Outputs: 1 RCA, 1 XLR. THD+N at 1kHz = 0.0004% at 20-20kHz = 0.003% at DC to 1MHz: < 0.05 %.

S/N = 100dB at 20-20kHz S/N > 90dB at DC to 1MHz.

Frequency Response at 20-20kHz = +0.02dB/-0dB at DC to 1Mhz = +0.5dB/-0dB at DC-2.5 MHz +0/-3dB.

Maximum output: 7V RMS.

Phase shift = 0.

Input impedance = 10K ohm.

Output impedance = 100 ohm.

Dimensions: 1.75"H x 8.5"W x 16"D.

Weight: 17 lbs.

Power 120V 60Hz (100V and 240V models available).

Chassis available in black or silver color anodized aluminum.

P-20 has three (3) year warranty.

Features Ultra low noise 1nV/√ Hz JFETs Volume control features numerically controlled, switched-resistor ladder network with the latest in thin-film, ultra-low-noise resistor technology.

Full microprocessor control with memory retention.

No capacitor and no DC-servo in the signal path.

3 separate power supplies.

Individual audio channels are shielded with heavy copper shield with thermal barrier.

Solid stainless steel back connector panel forms a solid signal ground reference

P-9 Preampliflier THD+N = 0.0004% @ 1kHz and a power bandwidth of 5MHz. Near perfect reproduction of 125kHz square wave. Housed in two chassis, the low-noise, high-performance Nuforce P-9 premaplifier is a breakthrough product. One chassis contains three power supplies and microprocessor control logic; the second chassis contains an analog volume control, input selection relays, and sensitive analog circuit components. Externally, the dual P-9 chassis are a stylistically consonant match to the NuForce Ref 9 Series power amplifiers. The P-9's 'Dual Drive' volume mechanism can be controlled either by a custom-designed, full-function remote interfacing with a digital volume control or by the manual Alps volume pot. A microprocessor control drives the high-performance Alps motorized pot in the analog chassis. A communication protocol constantly senses and feeds back the volume level to the microprocessor to sync-up the level settings on the digital volume indicator and Alps volume pot. Primarily for convenience, the digital volume control acts as an interface to the remote control. The volume control is ultimately analog based. As an additional convenience, memory stores the last-used input selection and volume level. The heart of the P-9 boasts an all-discrete, precision-operational amplifier module. To reduce capacitive loading on the final voltage amp, the design incorporates ultra-low-noise, monolithic dual JFETs, specially selected VMOS FETs and extremely flat hFE bipolar transistors in a dual cascode configuration with a driven shield. All this is necessary to achieve a 5MHz power bandwidth, a S/N ratio exceeding 100dB, with better than 120 dB of dynamic range. The inherently stable P-9 gain circuit has no capacitors or DC-servos in the signal path. Much attention has been paid to isolation. The amp modules are seated within heavy copper shields with internal thermal insulation to prevent thermal drift or signal-related heating capable of interfering with the preamp's operation. Each amp module has a self-contained shunt regulator to increase its isolation from the power supplies. A separate, isolated, floating-current source supply feeds each module to insure further isolation from noise in the ground system. The control system sends DC to the relays and the potentiometer's motor only. No logic circuitry with its clocks and fast edges introduces noise into the analog section's sensitive, low-level signals. While providing the custom-designed remote control's exemplary convenience, the preamp's overall isolation results in an extremely low noise floor. For audiophiles who want to integrate a home theater system into an uncompromising audio system, the P-9 incorporates a unique bypass system that connects the power amps for the main speakers directly to the AV processor or AV receiver amp, thus allowing for a seamless transition from the most demanding audiophile performance to THX multi-channel surround with bass management. Better still, this feature can be activated by a 12V trigger enabling integration without the need for manual intervention. All that's needed is a processor or receiver's 12V trigger receptor.

Specifications.

•Inputs: 5 RCA (including Home Theater bypass input

• Outputs: 1 RCA, 1 XLR (XLR output is unbalanced)

• THD+N at 1kHz = 0.0004% at 20-20kHz = 0.003% at DC to 1MHz: < 0.05 %

• S/N = 100dB at 20-20kHz S/N > 90dB at DC to 1MHz

• Frequency Response at 20-20kHz = +0.02dB/-0dB at DC to 1Mhz = +0.5dB/-0dB at DC-2.5 MHz +0/-3dB

• Maximum output: 7V RMS

• Phase shift = 0

• Input impedance = 10K ohm

• Output impedance = 100 ohm

• Dimensions: 1.75"H x 8.5"W x 16"D

• Weight: 17 lbs, 2 chassis

• Power 120V 60Hz (100V and 240V models available) Chassis available in black, silver or rose copper color anodized aluminum. P-9 has three (3) year warranty. Features

• 2-Box design

• Small 8 ½ half-rack chassis

• Ultra low noise 1nV/√ Hz JFETs

• Custom-made Alps motorized high-performance volume control

• Full microprocessor control with memory retention

• "Dual-drive" volume control mechanism

• No capacitor and no DC-servo in the signal path

• 3 separate power supplies

• High-performance HT bypass integration

• Individual audio channels are shielded with heavy copper shield with thermal barrier.

• Solid stainless steel back connector panel forms a solid signal ground reference

P-8S Preamplifier In designing the P-8S, NuForce has applied its never less than impressive technology in the creation of a preamplifier that defines music reproduction well beyond its price-point. First impressions: pristine clarity, natural tonalities, expansive imaging, and a realistic, correctly proportioned soundstage. The articulate low end's rhythm and drive will prove addictive. Chassis available in black or silver color anodized aluminum with sandblast finishing. The 12V Trigger Out allows P-8S to connect to Stereo 8.5V3 for turning the stereo power amp on or off.

Specifications •

Audio outputs: 1 set of RCA, 1 set of unbalanced XLR

 • Remote input selection and volume control with memory (last selection, volume level)

• 12V DC Tigger Out.

• Mute and Sleep functions

• Digitally-controlled switched attenuator. Volume Range: +30dB to -70dB with 0.5dB steps

• Dynamic Range: > 100dB

• Input Impedance: 4K ohm

• Output Impedance: 100 ohm

• THD+N at 1kHz: < 0.01%, typically 0.003-0.005% • S/N Ratio > 85dB

• Frequency Response at 20-20kHz = +0dB/-0.2dB at 20-170kHz = +0db/-3dB

• Maximum output = 8V RMS

• Crosstalk -130dBFS

• 100W SMPS with PFC (Power Factor Correction)

• Dimensions: 1.75"H x 8.5"W x 16"D Weight: 6 lbs.

• Power Requirements: 90-240VAC, auto select. P-8S has three (3) year warranty.

Audio inputs: 4 sets of RCA inputs.

Specifications.

Four line inputs, 2 stereo outputs

Freq Response .0.2 Hz to 200KHz +/- 3 dB

Input Imped................................100K ohms

Distortion...........................less than .001%

Output.............................less than .1 ohms

Crosstalk......immeasurable between inputs

Shipping Weight.........................11 Kg each

Size.................432mm x 88.9mm x 330mm

Specifications Four line inputs............... 2 stereo outputs

Freq Response .0.2 Hz to 200KHz +/- 3 dB

Input Imped...............................100K ohms

output Imped...............................100 ohms

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

Distortion...........................less than .001% Output............................................30Vrms

Vacuum tubes..........................Four-12AU7

X/talk............immeasurable between inputs

Shipping Weight......................12.5 Kg each.

Size..................432mm x 88.9mm x 330mm.

Specifications.

General Controls Listen, record, Volume and Balance Remote Controls Power On/Off, Mute, Volume, Input and Mon Dimensions 17 (432mm) W x 3.5 (89mm) H x 14 (330mm) D Shipping Weight 19 pounds (11 Kg) Power 120 VAC or 240 VAC @ 50/60 Hz Power Rating 50 volt amperes toroidal transformer Fuse 0.5A Slo Blo Filter Capacity 400,000 microfarads total Warranty 5 years Line Section Frequency Response 20 Hz to 20,000 Hz +/- 3 dB Hum and Noise >90 dB A weighted Distortion less than 0.01% IM and THD Input Impedance 20,400 ohms centre tapped balanced 50,000 to 100,000 ohms unbalanced Output Impedance 50 ohms unbalanced 100 ohms centre tapped balanced Maximum Output 6.7 volts rms Gain 4.92 or 13.84dB Crosstalk 60 dB between channels immeasurable between inputs

Specifications. Five line inputs fully functioning remote Tape output, A/V bypass, 2 stereo outputs Class A discrete component circuitry Frequency response 0.2 Hz to 100KHz Distortion less than .001% Size 305mm W x 216mm x D 52mm H High quality components

Trends PA-10 Tube Headphone/Pre Amplifier is an innovative audio product and provides all functions of headphone amplifier and pre-amplifier. It includes the innovative circuit design of low voltage hybrid (tube/transistor) pre-amp to provide audiophile quality sound, compact size, and easy/safe DIYer accessibility - pure class-A circuit to provide the best sound performance and have fun tube rolling with this fantastic headphone amplifier Features. compact size, and easy/safe DIYer accessibility provide all functions of headphone amplifier and pre-amplifier the innovative circuit design of low voltage hybrid (tube/transistor) pre-amp to provide audiophile quality sound pure class-A circuit to provide the best sound performance for headphone & tube-and-solid-state amplification system support both 6DJ8/6922 series and 12AU7 series tubes by simply switching the jumpers. DIYers can easily change their both series tubes to enjoy the fun. ONE bi-triode 6DJ8/6922 or 12AU7 tube as voltage amplification and TWO MOSFETs as output driver which perform the warm, comfortable tube sound and in addition, guarantee the high fidelity & sufficient driving power to the next power amplifier stage. provide TWO sets of switchable audio inputs. Besides the normal CD input, the PC/iPod input with higher gain is provided for small output phono amplifier or PC/Mac/iPod. Besides the normal audio output in the back panel, ONE headphone output in the front to drive even high-impedance audiophile-grade headphones compact design (mini-size & light weight), suitable for hi-fi room, living room, sleeping room or even right beside your laptop computer. TWO precise screw-driving potentiometers for professional audiophiles to adjust the tube＊s bias voltage to guarantee the best working point for different tubes. require just a single +24V power supply ONLY, besides the bundled AC adaptor, audiophiles can apply all other power supply with the same spec., e.g. lead-acid batteries. a specially designed AC power adaptor with extra low ripple & noise for Hi-Fi device is bundled for continuous power supply separate pre-amp unit & power adaptor to minimize interference and flexible to apply other power sources, e.g. lead-acid battery. all audiophile-graded parts and components the stylish aluminium case provides outstanding shielding & grounding capability to keeps the background silent and maximize the S/N ratio.