The design and main characteristics of combined shower spectrometers (CSSs) are presented: combined Cherenkov and lead-scintillation spectrometers that are intended for investigating shower processes in oriented crystals and that consist often independent lightproof counters with thicknesses of 1X_0 and 1.18X_0, respectively. At an electron energy E_e = 26 GeV, the energy resolutions of both CSSs together with a Cherenkov spectrometer with a thickness of 15X_0, which was placed behind them, were 2.4 and 4.3% for the combined Cherenkov and lead - scintillation shower spectrometers, respectively.
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