diff --git a/src/lasp/pybind11/lasp_dsp_pybind.cpp b/src/lasp/pybind11/lasp_dsp_pybind.cpp
index 85fd8ef..1e56ba8 100644
--- a/src/lasp/pybind11/lasp_dsp_pybind.cpp
+++ b/src/lasp/pybind11/lasp_dsp_pybind.cpp
@@ -54,7 +54,9 @@ void init_dsp(py::module &m) {
   /// SeriesBiquad
   py::class_<SeriesBiquad, std::shared_ptr<SeriesBiquad>> sbq(m, "SeriesBiquad",
                                                               filter);
-  sbq.def(py::init<const vd &>());
+  sbq.def(py::init([](dpyarray filter) {
+    return std::make_shared<SeriesBiquad>(NpyToCol<d,false>(filter));
+  }));
   sbq.def("filter", [](SeriesBiquad &s, dpyarray input) {
     vd res = NpyToCol<d, true>(input);
     s.filter(res);
@@ -64,9 +66,8 @@ void init_dsp(py::module &m) {
   /// BiquadBank
   py::class_<BiquadBank, std::shared_ptr<BiquadBank>> bqb(m, "BiquadBank");
   bqb.def(py::init<const dmat &, const vd *>());
-  bqb.def("setGains", [](BiquadBank &b, dpyarray gains) {
-    b.setGains(NpyToCol(gains));
-  });
+  bqb.def("setGains",
+          [](BiquadBank &b, dpyarray gains) { b.setGains(NpyToCol(gains)); });
   bqb.def("filter", [](BiquadBank &b, dpyarray input) {
     vd inout = NpyToCol<d, true>(input);
     b.filter(inout);