Cayin Audio - Cayin 688R Integrated Amp with KT-88 tubes

Cayin Audio



Product No.:
S 688R/KT88

Integrated Amplifiers

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Yet another built-like-a-tank, classic-looking tube integrated amp from Cayin. The 688R integrated is a true dual mono design, with a potted toroidal power supply and potted output transformer for EACH channel. This 78-pound beast is even more powerful than the Cayin A-88T integrated, and that thing is no wimp.

The 688R is loaded with eight KT88 output tubes used for Class AB1 push-pull amplification. Output impedance is selectable, with 2, 4 and 8 ohm taps, allowing you to fine-tune your speakers. It's also switchable between Ultralinear and Triode output modes. A preamp input allows the 688R to function solely as a power amp if that's what you desire. Otherwise, four 12AX7s and two 6N6s are used in the built-in preamplifier. And the faceplate includes tone controls for both treble and bass, a novelty in today's audiophile world.

The 688R includes quality point-to-point wiring with premium capacitors and resistors. The unit is remote-controlled and comes with a detachable IEC-type power cord.

Easy on the eyes, ears and wallet – that's Cayin.


Power Output: 2×100w ( 8Ω ULTRALINEAR) (KT-88 Tubes) 2×50w ( 8Ω TRIODE)
Frequency Response: 20Hz~30kHz THD:1%(1kHz)
Input Sensitivity: 400mV/100k Ω (Line input, tape in)
Input Impedance: 100KΩ
Output Impedance: 2Ω,4Ω & 8Ω
S/N Ratio: 89dB
Dimensions: 17 1/4"× 8"× 19 1/2" (W, H, D)
Weight: 78 lbs
Power Consumption: 440w

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