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Diffstat (limited to 'src/devices/bus/spectrum/specdrum.cpp')
-rw-r--r--src/devices/bus/spectrum/specdrum.cpp4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/devices/bus/spectrum/specdrum.cpp b/src/devices/bus/spectrum/specdrum.cpp
index 9c809a1b36a..49764da5da5 100644
--- a/src/devices/bus/spectrum/specdrum.cpp
+++ b/src/devices/bus/spectrum/specdrum.cpp
@@ -8,7 +8,6 @@
#include "emu.h"
#include "specdrum.h"
-#include "sound/volt_reg.h"
#include "speaker.h"
@@ -27,9 +26,6 @@ void spectrum_specdrum_device::device_add_mconfig(machine_config &config)
{
SPEAKER(config, "speaker").front_center();
ZN428E(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.5);
- voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref"));
- vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
- vref.add_route(0, "dac", -1.0, DAC_VREF_NEG_INPUT);
}