Jolida Preamps

fusionpreamplifier_front
http://www.jolida.com/product/fusion-preamplifier

Max Output voltage: 20 dB
Voltage Gain: 30 V
Frequency Response: 5Hz to 110KHz, 10 V
Distortion THD: Less than .02%; 1 KHz, 10 V
SNR: Less than 100 dB
Input Impedance: 100Kohms
Output Impedance: 600 ohms
Weight: 28 pounds
Size: 17 inches W X 13 inches D X 4.5 inches H
Tube Complement: 2 pcs. 12AX7; 2 pcs. 12AT7 Premium Tungsol

Construction Details and Features:
Full Tube Pre-amplifier
Multiple outputs: Fixed out, XLR out, RCA out.
Multiple Inputs: Front mounted selector switch and mini jack, with a pair of XLR and RCA inputs. Also includes a bypass input.
Custom Wound Audio Transformers with a core of German grain oriented silicon steel. 15th generation proprietary design

Jolida Fusion Dac Prefusiondacpre_front

http://www.jolida.com/product/fusion-dac-pre
An active preamplifier with a full DAC and Bluetooth wireless. The DAC has a heart of glass and no solid state op amps in the signal path. This unit will maintain the purity of your digital sound with the latest in chip technology, galvanic isolation, and a circuit design giving you the smooth and rich analog sound only vacuum tubes can deliver. With bluetooth wireless your music is only a few clicks away from your smart phone or computer.
Specs:
Max Output voltage: 2.8 V
Voltage Gain: 10 dB
Frequency Response: 20Hz – KHz, (+/- 1 dB)
SNR: > 100 dB
Distortion THD: Less than .02%
Input Impedance: 100Kohms
Output Impedance: 47 Kohms
Tube Complement: 2 pcs. 12AX7
Power: 110 VAC, fuse 5 x 20 mm 1 amp slo blow
220 – 240 VAC, fuse 5 x 20 mm 0.5 amp slo blow
Power consumption: 15 w
Size: 17 in. (W) x 13 in. (D) x 2.5 in. (H)
Weight: 14 lbs., 18 lbs. Boxed

DAC Specifications:
USB: 24/96 up sampling to 192 Hz
Toslink and coaxial: 24/192HzD
Galvanic Isolation: ADuM 1250 chips
Asynchronous Burr Brown Chip AD1896
DAC Chip: PCM 1798
All signal inputs are isolated
DAC chip directly transmits analog signal to SRPP Tubes
Bluetooth Frequency: 2.4 G
Bluetooth V2.1 + EDR , Aptx codec
Bluetooth maximum reception distance is 35 feet.

Jolida JD 5Tjd5t_front

Need a low cost vacuum tube preamplifier? The Jolida JD 5T might fill the bill.
http://www.jolida.com/product/jd-5t

Max Output voltage: 7 V
Voltage Gain: 10 dB
Frequency Response: 10Hz – 70KHz, (+/- 1 dB)
SNR: > 100 dB
Distortion THD: Less than .02%
Input Impedance: 100Kohms
Output Impedance: 600ohms
Tube Complement: 2 pcs. 12AX7
Size: 17 in. (W) x 13 in. (D) x 2 in. (H)
Weight: 11 lbs., 13 lbs. Boxed
Construction Details and Features:
o Multiple Inputs: Tuner, DVD, CD, and Aux
o Two RCA Outputs.
o State of the Art Components: High quality Alps blue potentiometer, gold plated RCA input jacks,
R core power supply.
Remote Control has four functions: Standby, V+, V-, and Mute.
Low profile full body allows the unit to act as a base for your amplifier or turntable.
No need to lose another shelf for a component.

Audio Alchemy DDP-1Preamp/DAC/Headphone amp

ddp-1_front_sm

From the website:http://www.audioalchemy.com/products/ddp-1-1 Inside the machined aluminum chassis are four core components: an all-analog preamplifier, a 32-bit/216-kilohertz DSD-compatible digital-to-analog converter, dual digital signal processors and a headphone amp.

The digital section of the DDP-1 incorporates dual 32/216 PCM/DSD AKM DACs (one per channel) with seven digital inputs: USB, AES/EBU, two RCA coaxial, two Toslink optical and an I2S connection for use with the Audio Alchemy DMP-1 Digital Music Player and other sources that support the Alchemy I2S format, including legacy Audio Alchemy products and some from Cambridge Audio and other brands. XLR and RCA outputs are provided, as well as a headphone amp that delivers 1 watt into 32 ohms.

The DDP-1 employs sophisticated digital processing. You can select from four output filter profiles and you can also select the output resolution. A multistage phase-locked loop (PLL) circuit reduces jitter to the picosecond level. The preamp section employs a discrete FET driver and output stages.

The DDP-1 is equipped with an external AC power supply, and can be upgraded by replacing the stock power supply with the PS-5. The PS-5 is a balanced power supply with separate feeds for analog and digital/control circuits, separate positive and negative rails for analog circuits, well as large banks of storage capacitors for better filtering of AC ripple and improved dynamics. A USB connector on the back of the DDP-1 makes firmware updates easy.

Key Features
· Internal 32/216 PCM DAC with native DSD capability
· All-analog preamp stage
· 7 digital and 3 analog inputs
· XLR, RCA and 3.5mm headphone outputs
· Remote control
Specifications
Frequency response
+/-0.05 dB, 20 Hz to 20 kHz
+/-0.1 dB, 10 Hz to 80 kHz
Nominal THD+N (1 volt)
<0.001% at 10 volts output from analog input
0.009% at 7 volts from XLR output, 3.5 volts from RCA output
Signal-to-noise ratio (1 kHz) 103 dB unweighted
Maximum digital input sampling rate/bit depth:
32-bit/216-kHz on PCM
2.82 MHz (DSD64) on DSD
Headphone amp output 1 watt at 32 Ω
Input impedance 50 kΩ
Output impedance 75 Ω
Digital inputs:
AES/EBU, 2 RCA coaxial, 2 Toslink optical, I2S, aux USB for firmware updates
Analog inputs stereo XLR, 2 stereo RCA
Outputs stereo XLR and RCA, 3.5mm headphone jack 3.5mm 12V DC trigger
Digital filter profiles:
Linear phase, fast roll-off
Linear phase, slow roll-off
Minimum phase, fast roll-off
Minimum phase, slow roll-off (apodizing)
Dimensions
3.0 x 10.5 x 11.6 in (hwd)
Weight
8 lb

Cambridge Azur 851E Preamp

851e-gallery-3 851e-gallery-4
Cambridge Azur 851E Preamp
https://www.cambridgeaudio.com/products/851/851e

THD (unweighted)
< 0.00045% @ 1kHz < 0.00057% @ 20kHz
S/N (unweighted)
< 110dBr < 90dBu
Frequency response
10Hz – 100kHz ± 0.1dB
Crosstalk @1kHz
> 110dB
Maximum output
8V RMS unbalanced 8V + 8V rms balanced
Output impedance
100 Ohms (Unbalanced or Balanced)
Subwoofer output
Flat or 200Hz 2nd Order Butterworth LPF
Max power consumption
36W
Bass & treble controls
Shelving type
Max bass boost/cut
± 10 dB at 10 Hz
Max treble boost/cut
± 7.5 dB at 20 kHz
Standby power consumption
<0.5W
Colour
Black and silver
Dimensions (HxWxD)
115 x 430 x 385mm (4.5 x 16.9 x 15.2’’)
Weight
8.1kg (17.9lbs)