Croft Acoustics Linestage R Integrated Stereo Amplifier
This listing is for a one owner Croft Acoustics Linestage R in excellent condition, includes the power cord.
The Line Integrated R contains the power amp stage from the Series 7R Power Amp with a passive line stage.
Due to the size of the components, there's no room in the box for the phono stage, but thankfully the RIAA phono stage (separate listing) is a perfect partner with the Integrated R.
Dimensions 405mm x 270mm x 70mm
Valve compliment
3 x ECC83
Weight
5Kg
Frequency Response
0.15 Hz - 150kHz -1 dB
Line Sensitivity
250 mV
Input Impedance
470 kΩ
Power Output
50-55 W rms @ 8Ω
75 W rms @ 4Ω
Power Consumption
idle 20w, 240 W max
This integrated amplifier is one in which line- and moving-magnet–compatible phono-stage gain is provided by vacuum tubes, and output power is provided by transistors.
From the Phono Integrated's gold-plated but blessedly non-massive RCA
jacks, input signals go straight to a rotary input-selector switch, from
which they are ushered to a dual-mono pair of volume pots.
Phono-stage
gain is provided by a stereo pair of ECC83 (12AX7) dual-triode tubes,
made by JJ Audio of Slovakia, while RIAA equalization is applied by
passive parts.
A third ECC83, using a pair of P9NK50 MOSFETs as a
constant-current source, is the voltage amplifier for the output
section, which is built around a complementary pair of J162 and K1058
MOSFETs.
In the right-rear corner of the Croft amp—as far as one can get from those small-signal tubes—is a simple and very cleanly executed analog power supply, with separate rectifiers for tubes and transistors.
Apart from a small circuit board containing the bipolar timer and relays for the amp's warm-up circuitry, the Phono Integrated is hand-wired, point to point, with neatly made solder joins and Bakelite terminal strips. Two separate aluminum brackets support the tubes and output transistors, the latter fitted with a heatsink of appropriate size.
Guaranteed to work correctly and be "as-described", offered for $1599.00 w flat $40.00 domestic shipping.
Quote is for for FedEx ground, and local pickup is always welcomed.
RETURNS: Any item may be returned within 14 days for a full refund of the purchase price, not including shipping, unless otherwise stated in the ad. It must arrive back at our store in Florida in the same condition as sent. International purchases need to be returned with incoming custom's duty prepaid, if any. Any postage or import duty that is due upon arrival will be deducted from the refund. 15% restocking fee on all returns unless defective or "not as described."
Shipping calculator is actually for FedEx ground, we no longer ship UPS.