Design Details and Features, Dimensions

Model 3a

Line Level Preamplifier

Design Details and Features

Technical Specifications

Operational Characteristics: Class A

Gain Architecture: All vacuum tubes signal path

Power Supply Architecture:

•Detachable RFI/EMI shielded external power supply

• 11 discreet FET regulated- All gain stages

individually regulated buffered

•EMI/RFI power line filtration using AudioPrism’s pro- prietary Quiet-line® technology

Input Connections: Single-ended, gold plated, Teflon® in- sulated, line-level inputs for Phono (line-level) CD, Tuner, Video and Tape

Output Connections: Two pairs of single ended, gold plated Teflon® insulated, outputs for the connection of multiple amplifiers

Control Section: Five-position input selector, dual stepped volume control using precision metal film resistors (only two resistors in the signal path at any position) Operation selector for on, mute and standby (designed to extend tube life) All control switches are amperage, low-loss construc- tion with silver-plated contacts. Source selector switches both “hot” and ground simultaneously.

Internal Construction: All circuit boards are vibration iso- lated, glass-epoxy, copper-traced full ground plane design active components are hand selected and matched-internal wiring is OFC copper-each channel is separated from input to output for shortest signal path and maximum isolation.

Tube complement: (2) 6DJ8, (2) 12AU7 or 5814

Frequency Response: 3.5 Hz –300 kHz ± 3 dB (0 dB attenuation)

Gain: 20 dB @ 1 kHz

Total harmonic Distortion: <.15% @ 1volt

Input impedance: 20 kΩ

Output impedance: 220Ω

Signal to noise: >90 dB (1volt @ 100 kΩ, 95 dB typical)

Stereo separation: > 90 dB from 10 Hz to 100 kHz

Channel Balance: .2 dB maximum

Maximum Input Voltage: 7 volts RMS

Maximum output Voltage: 17 volts RMS

(0 dB attenuation, 1.3 volts RMS input, 1% THD)

AC power requirements: 120 VAC (100~240V available upon request)

Dimensions:

Preamplifier:

Height: 3.92inches (9.96 cm)

Width: 17.00 inches (48.26 cm)

Depth: 12.50 inches (44.45 cm)

Weight: 14.0 lbs. net (5.45 kg)

Power Supply:

Height: 3.0 inches (7.62 cm)

Width: 5.0 inches (12.70 cm)

Depth: 10.50 inches (4.60 cm)

Weight: 10.0 lbs. net (4.60 kg)

943 Madison Avenue

New York, New York 10021

212-628-5777

www.redrosemusic.com

Model 3a specifications

The Red Rose Music Model 3a is a high-fidelity audio amplifier that stands out for its innovative engineering and commitment to delivering an exceptional listening experience. Designed for audiophiles and music enthusiasts, the Model 3a combines advanced technology with a sleek aesthetic, making it an attractive addition to any audio system.

At the heart of the Model 3a lies its Class A design, which minimizes distortion and delivers pure, uncolored sound that brings music to life. This design choice ensures that every nuance of the audio signal is preserved, allowing listeners to appreciate the subtleties in their favorite tracks. The Model 3a boasts a power output of up to 300 watts per channel, providing ample headroom for dynamic performances and ensuring that even the most demanding speakers are driven efficiently.

One of the standout features of the Model 3a is its proprietary circuitry, which is designed to reduce noise and improve overall sound clarity. This advanced circuitry helps in creating a seamless soundstage, allowing listeners to pinpoint instruments and vocals precisely within the mix. Another essential characteristic is its robust power supply, which consists of toroidal transformers known for their efficiency and minimal electromagnetic interference. This power supply supports the amplifier's ability to handle transients with ease, delivering high-energy performances without sacrificing detail.

The Model 3a also incorporates high-quality components, such as audiophile-grade capacitors and resistors, ensuring long-term reliability and performance. Additionally, the unit is equipped with a range of inputs, including RCA, XLR, and optical, making it versatile enough to connect to various audio sources. The inclusion of both balanced and unbalanced inputs allows for greater flexibility in setup, particularly in professional applications.

Furthermore, the Red Rose Music Model 3a features a user-friendly interface, complete with a remote control that simplifies operation. The elegant design includes a brushed aluminum finish and customizable LED lighting, allowing users to tailor the aesthetic to their liking. Whether utilized in a home audio system or a professional studio environment, the Model 3a exemplifies the passion for music and dedication to quality that Red Rose Music embodies.

In conclusion, the Red Rose Music Model 3a is an impressive audio amplifier that marries advanced technology with exquisite craftsmanship. With its powerful performance, exceptional sound quality, and versatile connectivity options, it is a superb choice for anyone seeking to enhance their audio experience.