diff --git a/hardware/eda/circuits/indicator.py b/hardware/eda/circuits/indicator.py
new file mode 100644
index 0000000..84f7870
--- /dev/null
+++ b/hardware/eda/circuits/indicator.py
@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+"""PM_K-1 SIG/CLIP indicator (SKiDL): peak-detect + LM393 -> SIG_LED / CLIP_LED.
+
+Run INSIDE the EDA container:
+    cd hardware/eda && ./run.sh python3 ../eda/circuits/indicator.py
+Outputs ERC + hardware/kicad/indicator.net.
+
+Signal-present detect taps STAGE1_OUT; clip detect taps MIX_OUT (pre-driver). Each is
+peak-rectified (Schottky + hold cap + bleed R) into an LM393 comparator vs a threshold
+divider. Outputs are open-collector, pulled to +3V3, so they drive the face LED line AND
+read cleanly on an RP2350 GPIO (SIG_LED=GPIO19, CLIP_LED=GPIO20 in the core).
+
+LM393 powered from +15V (handles the audio common-mode range); open-collector pulled to
++3V3 keeps the logic level RP2350-safe. Threshold-divider values are TUNABLE (set the
+signal-present and clip points at bring-up). DNP/optional -- a face fits the LEDs.
+LM393 pinout standard: 1=OUT1 2=-IN1 3=+IN1 4=V- 5=+IN2 6=-IN2 7=OUT2 8=V+.
+"""
+import os
+from skidl import *
+set_default_tool(KICAD9)
+P = Pin.types
+R = Part("Device","R", dest=TEMPLATE, footprint="Resistor_SMD:R_0402_1005Metric")
+def C(v): return Part("Device","C", value=v, footprint="Capacitor_SMD:C_0402_1005Metric")
+DS = Part("Device","D_Schottky", dest=TEMPLATE, footprint="Diode_SMD:D_SOD-323")
+
+p15, p3v3, gnd = Net("+15V"), Net("+3V3"), Net("GND")
+for n in (p15, p3v3): n.drive = POWER
+gnd.drive = POWER
+stage1_out, mix_out = Net("STAGE1_OUT"), Net("MIX_OUT")     # taps (shared by name)
+sig_led, clip_led = Net("SIG_LED"), Net("CLIP_LED")          # open-collector -> GPIO + face LED
+
+LM393 = Part(name="LM393", tool=SKIDL, dest=TEMPLATE, ref_prefix="U",
+    footprint="Package_SO:SOIC-8_3.9x4.9mm_P1.27mm",
+    pins=[Pin(num=1,name="OUT1",func=P.OPENCOLL),Pin(num=2,name="-IN1",func=P.INPUT),Pin(num=3,name="+IN1",func=P.INPUT),
+          Pin(num=4,name="V-",func=P.PWRIN),Pin(num=5,name="+IN2",func=P.INPUT),Pin(num=6,name="-IN2",func=P.INPUT),
+          Pin(num=7,name="OUT2",func=P.OPENCOLL),Pin(num=8,name="V+",func=P.PWRIN)])
+u = LM393(ref="U11")
+u["V+"] += p15; u["V-"] += gnd
+cdec = C("100nF"); p15 += cdec[1]; cdec[2] += gnd
+
+def peak_detect(src):
+    d = DS(value="BAT54"); ch = C("100nF"); rb = R(value="100k")
+    node = Net()
+    src += d[2]; d[1] += node          # Schottky pin1=K,2=A: anode at src, cathode->node (rectify +peaks)
+    ch[1] += node; ch[2] += gnd; rb[1] += node; rb[2] += gnd
+    return node
+
+def threshold(div_top, div_bot):
+    n = Net(); rt = R(value=div_top); rb = R(value=div_bot)
+    p15 += rt[1]; rt[2] += n; rb[1] += n; rb[2] += gnd
+    return n
+
+# signal-present: low threshold ; clip: high threshold (TUNABLE)
+u["+IN1"] += peak_detect(stage1_out); u["-IN1"] += threshold("1Meg","10k")    # ~0.15V trip
+u["+IN2"] += peak_detect(mix_out);    u["-IN2"] += threshold("100k","68k")    # higher (clip)
+rs = R(value="10k"); u["OUT1"] += sig_led; sig_led += rs[1]; rs[2] += p3v3    # open-coll pull-ups to 3V3
+rc = R(value="10k"); u["OUT2"] += clip_led; clip_led += rc[1]; rc[2] += p3v3
+
+ERC()
+out = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", "kicad", "indicator.net"))
+generate_netlist(file_=out)
+print("Indicator netlist ->", out)
diff --git a/hardware/eda/circuits/speaker.py b/hardware/eda/circuits/speaker.py
new file mode 100644
index 0000000..21e10f0
--- /dev/null
+++ b/hardware/eda/circuits/speaker.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+"""PM_K-1 monitor speaker amp (SKiDL): PAM8302A class-D -> SPK_P/SPK_N.  DNP/optional.
+
+Run INSIDE the EDA container:
+    cd hardware/eda && ./run.sh python3 ../eda/circuits/speaker.py
+Outputs ERC + hardware/kicad/speaker.net.
+
+Filterless 2.5W mono class-D for a built-in monitor (populated only on form factors that
+want one). Fed from MIX_OUT (the mixed click+input, single-ended into IN+; IN- AC-coupled
+to GND). Gain = 20*log(150k/(10k+RIN)); RIN=68k -> ~+5.7dB. SD pulled high = enabled
+(route SPK_SD to a GPIO if software shutdown is wanted). Output is BTL (filterless) to the
+speaker via the analog interconnect.
+
+PAM8302A SO-8 pinout (Diodes, verified): 1=SD 2=NC 3=IN+ 4=IN- 5=VO+ 6=VDD 7=GND 8=VO-.
+"""
+import os
+from skidl import *
+set_default_tool(KICAD9)
+P = Pin.types
+R = Part("Device","R", dest=TEMPLATE, footprint="Resistor_SMD:R_0402_1005Metric")
+def C(v, fp="Capacitor_SMD:C_0402_1005Metric"): return Part("Device","C", value=v, footprint=fp)
+
+p5, p3v3, gnd = Net("+5V"), Net("+3V3"), Net("GND")
+for n in (p5, p3v3): n.drive = POWER
+gnd.drive = POWER
+mix_out, spk_p, spk_n, spk_sd = Net("MIX_OUT"), Net("SPK_P"), Net("SPK_N"), Net("SPK_SD")
+
+PAM = Part(name="PAM8302A", tool=SKIDL, dest=TEMPLATE, ref_prefix="U",
+    footprint="Package_SO:SOIC-8_3.9x4.9mm_P1.27mm",
+    pins=[Pin(num=1,name="SD",func=P.INPUT),Pin(num=2,name="NC",func=P.NOCONNECT),Pin(num=3,name="IN+",func=P.INPUT),
+          Pin(num=4,name="IN-",func=P.INPUT),Pin(num=5,name="VO+",func=P.OUTPUT),Pin(num=6,name="VDD",func=P.PWRIN),
+          Pin(num=7,name="GND",func=P.PWRIN),Pin(num=8,name="VO-",func=P.OUTPUT)])
+u = PAM(ref="U12")
+
+# supply
+u["VDD"] += p5; u["GND"] += gnd
+cb = C("1uF","Capacitor_SMD:C_0805_2012Metric"); p5 += cb[1]; cb[2] += gnd
+cd = C("100nF"); p5 += cd[1]; cd[2] += gnd
+# enable (SD high); route SPK_SD to a GPIO if desired
+rsd = R(value="100k"); spk_sd += rsd[1]; rsd[2] += p5; u["SD"] += spk_sd
+# single-ended input: MIX_OUT -> coupling cap + RIN -> IN+ ; IN- coupled to gnd (matched)
+cin = C("1uF","Capacitor_SMD:C_0805_2012Metric"); rin = R(value="68k")   # ~+5.7dB
+mix_out += cin[1]; cin[2] += rin[1]; rin[2] += u["IN+"]
+cinm = C("1uF","Capacitor_SMD:C_0805_2012Metric"); u["IN-"] += cinm[1]; cinm[2] += gnd
+# filterless BTL output to speaker (via interconnect); add EMI ferrite/cap at layout if needed
+u["VO+"] += spk_p; u["VO-"] += spk_n
+
+ERC()
+out = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", "kicad", "speaker.net"))
+generate_netlist(file_=out)
+print("Speaker netlist ->", out)