DECWARE CSP2 tubed preamplifier and headphone amplifier. SOLD The unit is in mint condition. I purchased the unit, Serial no. #43, in August, 2008. Being offered for $650.00. The original retail price was $795.00 but there has just been a price increase on the unit. It is now $895.00, which makes this one a great value.
I have been using this unit in my office for some time; due to a change in my work I am no longer using the headphone feature that much.
For those who do not know about this unit, lots of favorable comment can be found on the DECWARE site, and on Head-Fi in a thread about the CSP2.
It is excellent for a preamplifier. The unit has 2 inputs to accommodate 2 different sources. You can control the gain separately for each channel through small pots on the rear of the unit. As a headphone amplifier it will drive any kind of phones, high impedance, such as Sennheisers or low impedance, such as GRADOS. I have both and have used both with the unit.
You valve swappers out there will enjoy the possibilities that the unit presents with the 6N1P, 6922; 7308; ECC88; E88CC tubes out there. It can use either 5Y3GT or 5U4GB tube rectification; others have used different rectifier tubes than those.
As part of the sale, I will send the unit to the DECWARE factory to be checked out at my cost. DECWARE will then send the unit to the new purchaser with a renewed lifetime warranty to the new purchaser; per DECWARE policy. You pay shipping from DECWARE in Illinois. This means that if anything wears out on it you can send it back to the factory and they will fix it for free and apply any updates that may have been instituted on the unit. I will include a set of tubes and a power cord.
Below are the specifications for the unit from the DECWARE site:
Weight 13 lbs. ea.
Dimensions 8.5" H x 7.250" W x 14.75" D
Circuit type Single ended Class A Triode OTL
Output Adjustable 0 ~ 36 volts
Input voltage 250mv ~ 5.0 volts
Noise / Hum Less than 0.5 millivolts
Input Impedance 100 KOhms
Output Impedance < 60 ohms
Response 5 Hz ~ 70 kHz
Feedback ZERO negative feedback used
Rectification 5Y3GT tube rectification
Signal tubes 6N1P or 6922 or 6Dj8
Transformers Transformer custom made for this preamplifier by Decware
Biasing Self-Biasing circuit - never needs adjustment
Resistors All resistors are audiophile grade
Signal Cap Audiophile grade poly film/foil
Filter Caps All filter caps are premium quality
AC cord Fused IEC connector provided with removable power cord
Consumption 65 watts at full power
Input jacks RCA type 24K Gold / Teflon
Output jacks RCA type 24K Gold / Teflon
Headphone jack 1/4 inch stereo jack
Warranty Lifetime to original owner / 90 days on 
tubes
Edited by rivieraranch - 6/27/10 at 10:24am
