Class A/B Amplifier powers Polk Audio Monitor 70 Series II speakers. Power output: 250 watts per channel into 8Ω (stereo) Frequency response: 20Hz to 20kHz, THD 0.06%, Input sensitivity: 1.2V. Signal to noise ratio: 110dB. Hi-Fi Review http://www.hifi-review.com/153494-acurus-a250.html
Connected by Fospower Toslink Cable to Monarchy Audio DIP 24/96. Ethernet cable connected to P10.
Output voltage at 1000 Hz, 5cm/sec: 3.5 mV Channel balance: within 2.0 dB Channel separation at 1 kHz: > 20 dB Frequency response: 20-20.000 Hz Dynamic compliance (x10-6 cm/dyne): 6.5 Static compliance (x10-6 cm/dyne): 20 Load resistance: 47 kOhms Load capacitance: 100 - 200 pF Stylus type: 0.4 x 0.7 mil elliptical diamond stylus Tracking force range: 1.5 -2.5 g VTA: 20° Coil impedance at 1kHz: 2.8 kOhms Coil inductance at 1kHz: 400 mH Load resistance: 47 kOhms
Single unbalanced, Chicago and Mackenzie AudioQuest Interconnects throughout and Forrest AudioQuest USB for MacBook PRO
Reduction of noise from Source (MacBook) via USB
- AudioQuest Nighthawk Headphones
Impedance: 25 ohms
Sensitivity: 99dBSPL / mW
Power Handling: 1.5W
Weight: 346g (12.2 oz.)
Driver: 50mm Dynamic - Biocellulose Diaphragm - 1.2T Split-Gap Motor
Length: 8' (2.4m)
Conductors: Solid Perfect-Surface Copper+ (PSC+)
Geometry: Symmetrical Star-Quad
NDS: Carbon-Based Noise-Dissipation System
Terminations: 3.5mm Stereo to Dual 2.5mm Mono, Direct-Silver Plated Pure Red Copper
Powered by RB-1590 Design:Three-Way Ported Drivers: One 1" Aluminum Dome Tweeter, One 6" Kevlar Midrange, Two 6-1/2" Woofers MFR: 38 Hz - 22 kHz Â± 3 dB Crossover: 350 Hz, 4 kHz Sensitivity: 90 dB/2.83V @ 1m Impedance: 8 Ohms (Nominal) Dimensions: 40.2" H x 9.4" W x 13.8" D Weight: 62 Pounds/Each
Restored and upgraded Dual 1264, Black Walnut case and plinth, 1/2 cartridge Audio Technica AT95E. Plinth on custom stillpoints. The Dual 1264 is a 2-speed, fully-auto, belt-driven turntable with pitch control and illuminated strobe. Specifications, Drive: 16-pole synchronous motor; precision flat belt, Platter: non-magnetic, detachable, 1kg, 304mm diameter Speeds:33 and 45rpm, Pitch control:one semitone (6%) Speed controlilluminated stroboscope, Wow and flutter: 0.04% WRMS, Rumble: 70dB (weighted), Tonearm: ultra low mass
Line conditioner for Dual 1264, Project DS Tube Box, AC noise filtering reduces RFI/EMI, Spike & surge protection ensures equipment stays safe & power stays clean, 9 Total outlets: 8 rear panel outlets (including 3 with "wall wart" spacing) and 1 front panel convenience outlet, 15 amp rating with circuit breaker and "Protection OK" Front Panel Indicator to let you know that your equipment is being protected, standard level surge and spike protection defends from spikes and surges that are so common.
- Little Dot Amplifiers Little Dot-1
Little Dot I+ Vacuum Transistor Hybrid Tube Headphone Amplifier HiFi Stereo Amp Preamplifier
The Little Dot I+ is a hybrid transistor-vacuum tube headphone amplifier, which combines the smooth, musical sound of tubes with the high output current of transistors. It is specifically designed for driving low impedance headphones that require high current to perform to their full potential.
Headphone amplifier with hybrid vacuum + transistor tube design.
Incredible sound quality gives you amazing HiFi music experience.
Aluminum alloy housing, very sturdy and durable.
With 6.35mm headphone output and RCA (R & L) input jacks.
Comes with one RCA cable and a 3.5mm to 6.35mm adapter.
Material: Aluminum Alloy
Vacuum Tube: WE408A
Signal Input: RCA Jacks
Signal Output: 6.35mm (1/4") Jack
Frequency Response: 10HZ - 50KHz (-3dB)
150mW @ 300 ohms
300mW @ 120 ohms
800mW @ 32 ohms
Suitable Headphone Impedance: 8 - 600 ohms
Power Consumption: 15VA
Item Size: 9.5 * 16 * 9.7cm / 3.7 * 6.3 * 3.8in
Item Weight: 1100g / 2.4lb
Package Size: 15 * 25 * 15.5cm / 5.9 * 9.8 * 6.1in
Package Weight: 1600g / 3.5lb
Restored Magnavox CDB-480 Player
Specs: Digital converter:TDA1543, 16 bit, 4 x oversampling
CD Mechanism: CDM-4/19
Frequency response: 2Hz to 20kHz
Dynamic range: 90dB
Signal to Noise Ratio: 96dB
Channel separation: 98dB
Total harmonic distortion: 0.003%
Line output: 2V
Dimensions: 420 x 81 x 280mm
Marantz Professional CD Player (PMD 326C)
File Formats CD: CD-DA (CD-TEXT), CD-ROM (ISO9660), CD-R, MP3-CD
USB: FAT16 / FAT32MP3 FormatsExtension: MP3
Bitrate: 32 to 320 kbps and VBR
Sampling Frequency: 44.1 kHz\16-bitNumber of Channels2 x stereo, 1 x monoFrequency Response20 Hz - 20 kHz (±1.0 dB)Signal-to-Noise Ratio (SNR)>95 dB (A-Weighted)Total Harmonic Distortion (THD)<0.01%Dynamic Range>85 dBChannel Separation>80 dBOutputBalanced XLR
Maximum Output Level: 3 VrmsInputAux In: TRS 1/8" / 3.5 mm
Input Impedance: Over 10 kOhms
Maximum Input Level: 1 VrmsUSB Thumb Drive CompatibilityMax Storage Capacity: Up to 32 GB
Max File Size: 2 GBPowerPower Supply USA & Canada: 120 VAC, 60 Hz
Power Consumption: 30 Watts
(W x D x H)Rack Ears: 19.0 x 13.7 x 1.7" / 48.3 x 34.7 x 4.4 cm
Without Rack Ears: 17.1 x 13.7 x 1.7" / 43.4 x 34.7 x 4.4 cmWeight7.9 lb / 3.6 kg
C47, a 12-input digital preamp designed to offer huge flexibility with both digital and analogue source components, MM and MC built-in phono stage for the direct connection of turntables, an “advanced” headphone stage, plus four digital inputs, hi-resolution audio formats via its USB input, including DSD64, DSD128 and DSD256 along with DXD 352.8kHz; its twin optical and single coaxial inputs can decode at up to 24-bit/192kHz resolution. For optimum SACD playback, the C47 preamp can also connect digitally to McIntosh’s MCT450 SACD/CD transport via its ‘MCT input’, creating a secure DSD connection. Great addition, smooth and highly enjoyable. Takes all my sources and then some. Love the Quality!
Experience stereo bliss with the MC462 Amplifier. The MC462 replaces the highly regarded MC452 as our most powerful stereo amplifier. Like the MC452, it features a robust output of 450 Watts per channel. With a dedicated McIntosh Autoformer™ connected to each audio channel, the full 450 Watts is available to any speaker regardless if it has 2, 4 or 8 Ohm impedance. Just one MC462 Amplifier can single-handedly power a world class home audio stereo system.
The new generation MC462 stereo amplifier has received numerous updates compared to the previous model. The most prominent is that filter capacity has been increased by nearly 50%, which has resulted in a remarkable 66% increase in dynamic headroom from 1.8dB to 3.0dB. This allows the MC462 to easily handle drastic swings in dynamics and effortlessly reproduce your favorite music with virtually no distortion. Bass performance is also improved as a result of the filter capacity increase. Our eco-friendly power management system, which will turn the amplifier off after a set amount of time when no input signal has been detected, has been added. Internal wiring and select circuit components have also been upgraded.
- Power Output per Channel450 Watts @ 2, 4 or 8 Ohms
- Number of Channels2
- Total Harmonic Distortion0.005%
- S/N below rated output122dB
- Dynamic Headroom3.0dB
- Damping Factor>40 Wideband
- Rated Power Band20Hz to 20kHz
- Frequency Response+0, -0.25dB from 20Hz to 20,000Hz
+0, -3.0dB from 10Hz to 100,000Hz
- Omega Speaker Systems Super 3i
With very slight alterations to the cabinet and the addition of the RS5 driver, I knew I had a winner over the original with the HempCone Super 3i.
It's sound is now fuller and warmer with deeper bass without sacrificing top end or the elctrostatic speed the original was famous for.
The Super 3i also has physical dimensions that are very eye pleasing.
Suitable for small to medium sized rooms and larger desktops.
Super 3 Desktop Specifications
Sensitivity: 94.5 dB at 8 ohms
Impedance: 8 ohms
Driver: Proprietary 4.5" RS5
Frequency Response: 55-20kHz
Dimensions: 14"H x 7.5"W x 11"D
Power Requirements: as little as 2 watts
Warranty: 10 years parts and labor for workmanship defects
- Polk Audio Monitor 70 Series 2
Powered by Acurus A250, upgraded Crossovers Teflon Capacitors .22uf in parallel. 3 way, 1” (25mm) silk/polymer composite dome tweeter, 4 6.5” composite drivers natural sound 40-000 Hz (-3dB), 8-ohm impedance, sensitivity 90 dB, 30-275 watts, Dual 5-way binding post terminals, 8-7/8"W x 43-1/4"H x 15-3/4"D
Powered by Rotel RB-1572, speaker crossovers upgraded, Teflon Capacitors 3 in each speaker .22uF in parallel. 3 way, bass-reflex (ported) design, frequency response 35-26,000 Hz (-3dB), 20-300 watts, 1" Dynamic Balance® silk/polymer tweeter 6-1/2" Dynamic Balance polymer composite midrange, Dual 7" Dynamic Balance polymer composite woofers, PowerPort Plus technology 8-ohm impedance, sensitivity 89 dB Dual 5-way binding post terminals,0-11/16"W x 41-5/8"H x 18-1/4"D
Subwoofer, (2) in room. This subwoofer comes in one single 12-inch long throw Driver for improved linearity.It is made of high excursion polymer composite cone with high roll surround, unit is shielded. The output is 300 watts –it is continuous average output, dynamic power output is 460 watts.
- Project Audio Tube Box DS
Tube Phono Preamp MC and MM, 2 ECC83 Tubes, currently connected to Dual 1264.
Power Regenerator Nominal Input Voltage: 95-145VAC Maximum Continuous Load: 1200VA Maximum Peak Load: 1500VA
Voltage Regulation: +/- 0.5V Output Distortion: Input 110-130VAC: 1200VA Resistive Load <0.5 Input 110-130VAC: 12000VA Reactive Load <0.5%Output Impedance: <0.015 OhmNoise Reduction (all zones): 100KHz-2MHz >80dB Efficiency @ 1200VA: Resistive Load: > 85%
Reactive Load: > 85%Input Frequency: 45-56Hz
Under Voltage Limit:
Continuous: -10% of setting
15 Sec Duration: -15% of setting
Over Voltage Limit:
Continuous: 5% of setting
15 Sec Duration: 10% of setting
Energy Dissipation: 2440 Joules
Peak Current Surge: 144,000A
Max Surge: 6,000 Volts
Clamp Level: 330V
Telco Protection: 320 Joules 395 volts
Coax Insertion loss: <1dB
DC Trigger config: Tip Positive
DC Trigger Voltage: 5-15 volts DC
Dimensions (WDH): 17" x 14" x 9"
Weight: 73 lbs.
Secondary DAC 24bit on the fly switch 96khz to 192khz. 3 digital audio inputs — optical, coaxial, and USB (Type B). RCA outputs and balanced XLR outputs, built-in driver for USB connection, Texas Instruments (formerly Burr Brown) PCM1798DB DAC, 192kHz/24-bit processor with 8X oversampling filter, FET-based discrete output stage, built-in high-end power supply with oversized toroidal transformer, THD: 0.0005%, dynamic range: 123 dB, weight: 10 lbs. 8-9/16"W x 2-13/16"H x 15-15/16"D
Two units plugged into PS Audio Powerport Classics. PS Audio Noise Harvester reduces AC line noise by converting it into light. Is compatible with power line conditioners, removes noise at lower frequencies than covered by traditional conditioners, 1-3/4"W x 1-1/16"H x 2-15/16"D.
- PS Audio Classic Power Port
3 each (6 outlets), The Power Port is a custom built, AV Grade isolated ground receptacle. The Power Port exceeds hospital grade standards for grip strength, contact resistance and current delivery. Easy to install in wall and replace standard receptacle. 15 coats of polished nickel over high-purity copper.
Power Cables (3) One connects PS Audio DL3 DAC to P10. Superphon CD MAXX Preamp connected by AC-3 to P10. P10 connected by AC-3 to PS Audio Classic Power port
Class A/B Amplifier 350w INTERMODULATION DISTORTION (60Hz:7kHz, 4:1) <0.03% DAMPING FACTOR 300 SPEAKER IMPEDANCE 4Ω minimum INPUT SENSITIVITY Line Level Inputs (RCA): 2.2V Line Level Inputs (XLR): 3.5V INPUT IMPEDANCE Line Level Inputs (RCA): 12kΩ Line Level Inputs (XLR): 100kΩ CHANNEL SEPARATION >50dB DIMENSIONS (W × H × D) 431 × 237 × 454mm 17" × 9.75" × 19.9" FRONT PANEL HEIGHT 5U / 221mm (8.75") POWER REQUIREMENTS 120V, 60Hz POWER CONSUMPTION 800W STANDBY POWER CONSUMPTION 0.5W NET WEIGHT 38.1kg (84lbs.) BTU RATING (4Ω, 1/8th power) 2100 BTU/h CONTINUOUS POWER OUTPUT 350W/Ch (All channels driven, 8Ω) TOTAL HARMONIC DISTORTION (THD) (20Hz–20kHz) <0.03% FREQUENCY RESPONSE 10Hz - 100kHz ±0.5dB S/N RATIO (IHF "A" Weighted) 120dB GAIN RCA: 27.5dB XLR: 23.5dB
A mellow sounding Rotel CDP Circa 1992-1995. Restored
- Shunyata Research Snakebite Power Cable
Two Shunyata Research Snakebite power cables
- Shunyata Research Venom 3
From RB1572 then connected to P10
- Silverback Speaker Cables
259 Strands per cable 12AWG Biamped
Connected to P10 by Second Venom 3 power cable, 8 stages of DC voltage regulation, Internal up-sampling which uses 24-bit/352.8kHz processing, Proprietary CD drive system with in-house developed hardware & software, BurrBrown PCM1793 high-resolution 24 bit/192-kHz Digital-to-Analog Converter and 8X oversampling digital filter, RS-232 port for: full unsolicited bidirectional feedback in custom installation setups; and firmware updates, IR input for external control. All digital and analog audio circuitry mounted on a single circuit board, each with their own respective ground plane, to minimize signal path lengths and eliminate any potential for interference and signal degradation. Accurate digital clocking system for exceptionally low intrinsic jitter levels. Advanced analog signal path using a DC servo circuit and proprietary analog filter. PCB w/ pure copper tracings & gold plating that yields low impedance elements.
7 Filters Features:Update version ESS Technology Sabre Reference 32bit ES9018K2M DAC chip XMOS 32bit USB receiver chip which is best performance asynchronous USB audio solution. Maximum support 384KHZ / 32Bit, DSD. Professional circuit layout to get best circuit stability and great performance. Aluminum Housing, hair skin surface procession. Digital Toslink Optical / Coaxial / USB Analog Output: single ended output via RCA port. 110-240V supported. THD + N of less than 0.0004%, the dynamic> 125dB, SNR> 126dB. USB support 32bit, 384KHZ PCM signal. OLED display. DSD direct decoding. Automatic Jitter control switch. 7 filter modes, different styles can be combined to adjust the sound. High precision DPLL locking bandwidth is set automatically. Operational settings automatically.Automatic shutdown environmental design. High precision and low phase noise clock system. Low noise power processing system. High precision low noise low drift resistor. Portable and easy to carry. Solid aluminum CNC aluminum chassis, aluminum buttons. Digital Input Format Support Coaxial: 44.1、48、88.2、96、176.4、192 kHz Optical: 44.1、48、88.2、96、176.4、192 kHz USB : 44.1、48、88.2、96、176.4、192、352.8、384 kHz DSDx64(2.8224MHz)DSDx128(5.6448MHz) Parameters: THD + N: <0.0004% Output level: 2.15 Vrms Dynamic range:> 125dB SNR:> 126dB Channel separation:> 120dB USB support: Windows, Mac OS, iOS (need purchase connector), Android4.0 or more (most models). Optical/Coaxial: 16Bit-24Bit / 32KHz-192KHz. Recommended software: Windows + foobar2000, Mac OS + Pure Music.
- SMSL M1 Linear Power Supply
Power Supply for SMSL M8 DSD DAC
Blu-Ray connected to Monarchy Audio DIP 24/96
- Superphon CD MAXX Preamplifier
Rebuilt with stand alone power supply. SS Line Preamplifier, Dual Mono volume, mofset, Shunt regulation, Acrylic Case, Oak Sides. Separate Power Supply Enlcosed E-Type Transformer. This is another well designed piece from Stan Warren, 1/2 of PS Audio. The Superphon preamplifiers were known for being a high end performer for a reasonable price. The CD-MAXX is a gem. The CD-MAXX has several innovative design characteristics that are not found on inexpensive electronics. Class A Mosfet Outputs, with FET current sources. Shunt regulation located as closely possible to each stage. LED diodes used for precision voltage trim. All controls physically mounted to the board, so there are no wiring harnesses. Dual Mono volume control, eliminates the balance knob for better sound, no tone controls either. A unique acrylic top case and solid Oak chassis sides that have no magnetic properties. A separate Power Transformer in Aircraft grade textured Satin Black Aluminum case with specific rectifier for Red LED power light indicator. Reduces draw on power supply. Extra fuse provided at back of unit next to on/off Toggle Switch. Upgraded XLR balanced power cable connection from Separate power supply to the control unit of CD Maxx. Ability to select between active and passive gain configuration, mute and listen modes. The CD MAXX is the Revelation without the phono stage. It is a very natural sounding pre amp, with an easy and flowing nature to the midrange. Bass is full and extended. The treble is extended and detailed, but never bright and zippy. There is no need for treble or bass control in this piece as it does does not exaggerate, but rather reveals. It sounds impeccable through mid-range and tight at low to high volume. Particularly, when I listen to it in passive mode at low volume levels. Taking it up a notch and turning it to active kicks in a robust performance of all genres of music. Cosmetically it is in factory perfect pristine condition with a new acrylic case and refinished natural stained Oak sides.
- Tara Labs Interconnect 300V Coaxial
From Blu-Ray to Monarchy Audio DIP 24/96
Vintage Stereo Cassette Deck Restored. Circa 1975-76
- Topping TP-32EX DAC Headphone Preamplifier
Topping TP-32EX features at 192 USB decoding and 50*2W power output, which remedy deficiency of TP-32 perfectly.
Remote control system and LED front display
Synchronize start-up and shutdown with your computer
Volume fade to protect your speakers and your hearing
Integrated T-Amp, Dac and Headphone Amplifier design
Tripaths TA2024B chipset with DPP technology
USB connection for highest quality sound from your computer
Cirrus Logic's CS3310 low distortion electronic volume control
Gold plated analog RCA stereo input
All-aluminum chassis with 8mm CNC machined face plate
Widely recognized high-quality components from KOA, ERO, Siemans, Nichicon, Toko, Omron
Turn-on & turn-off pop suppression
Over current & over temperature protection
Suitable Speaker Impedance 4-8Ω
Maximum output power 50W (RL=4Ω, THD+N=10%)
30W (RL=8Ω, THD+N=10%)
Frequency response 20-20kHz
Suitable Headphone Impedance 16-300Ω
Maximum output power 140mW (RL=32Ω, THD+N=1%)
Maximum output voltage swing 10Vpp
Minimum THD+N 0.002% (RL=32Ω, Pout=45mW)
Frequency response 20-20kHz±2.0dB
Input sensitivity 750mVrms
Tube Buffer, Tubes 2 Rogers Old New stock 6SN7 GT-A's. The power transformers manufactured with silicon steel sheet and high-quality oxygen-free enamelled copper wire. Beautiful aluminum chassis and panel with logo window and steel heavy duty chassis.This processor employs cathode followers to improve your audio system. It outputs the same voltage as it receives. The voltage gain approaches 1. It also adds tube audio quality to digital audio, reduces work load of a receiver (or an amplifier), and makes speakers sound warmer and more finer. This processor can be connected in various configurations. It is to be installed between an audio source and a receiver (or an amplifer). The audio sources can be a solid state CD/DVD player, MP3 player, iPod, or computer audio output. Dual power supply voltages are available on this unit, 115VAC for North America, 220VAC for Asia and Europe. Tubes:6N8P × 2 (Cathode followers,it can be replaced with 6SN7) Output Jacks: Two channels with two gold plated RCA jacks Input Jacks: Two channels with two gold plated RCA jacks Input Impedance: 100KΩ Distortion of Harmonic Wave: ≤0.03%(1KHz input) Signal to Noise Ratio: >75 dB Frequency Response: 10Hz ~ 100KHz (-0.1dB) Supply Voltage: AC115V 60Hz Power Consumption: 15W Dimension: 17cm(W) x 20cm(D) x12cm(H) (7” x 8” x 5”) Net Weight: 2.5kg (5.5lb).
Easily connect the NODE 2i wireless music streamer to any existing stereo system to unlock and discover a universe of audio streaming. With more than enough analog and digital input/output options to please the most dedicated audiophile, the NODE 2i connects your gear to all the music ever recorded. Online streaming services, Internet radio and even your own digital music library held on a computer, smartphone or external drive—the NODE 2i brings infinite playback choices into your very own high-fidelity sonic domain.
- Connect to any existing stereo amplifier, AV receiver, or powered audio system.
- Featuring digital and analog input/output options, headphone stereo mini jack, subwoofer RCA mono.
- Seamlessly stream music from a CD player or turntable through the NODE 2i to other Bluesound Players.
- Simple setup directly inside the user-friendly BluOS Controller app.
- Access and stream Internet radio stations, cloud music services, and your own local music library to multiple Bluesound Players.
- Control music wirelessly with the intuitive BluOS Controller app.
- Connect Bluesound to your Amazon Echo with the skill in the Alexa app and use Amazon’s Alexa voice assistant to control Players around the home.*
- AirPlay 2* lets you play music or podcasts from speakers throughout your house — all in sync.
The NODE 2i has enhanced dual band Wi-Fi which provides best-in-class performance even in crowded airspace. With state-of-the-art Bluetooth® aptX® HD, the NODE 2i can easily support 24-bit streaming directly from your phone or tablet, as well as transmit studio-quality music to Bluetooth headphones and speakers. High-end DAC technology built into every Bluesound Player allows the NODE 2i to decode and stream MQA files in lossless.